List of Diagnostic Trouble Codes (DTCs)

Below is a list of standard DTC codes used by vehicle manufacturers to identify faults. These are generic codes that may not apply to all vehicles, therefore we recommend checking the applicability of each code for your specific vehicle model before taking any action. This list is intended for informational purposes only, and Launch does not assume responsibility for any actions you may take based on this information. For quick code lookup, we recommend using the search box and selecting the appropriate category below.

Powertrain (P)

Bodywork (C)

Chassis (B)

Communication (U)

Powertrain (P)

Code DTC	Description	Troubleshooting instructions
P0010	A camshaft position actuator circuit (bank 1)	Check the VVT actuator/solenoid wiring, connector and power supply. Inspect the solenoid for damage or blockage and replace it if faulty.
P0011	A camshaft position – timing over advanced or system performance (Bank 1)	Check engine oil level and condition first. Inspect the VVT solenoid, camshaft actuator and timing system; repair or replace faulty components and verify cam timing.
P0012	A camshaft position – timing over retarded (Bank 1)	Check oil level/condition and inspect the VVT solenoid and actuator. Check for a restricted oil passage or incorrect mechanical timing and repair as necessary.
P0013	B camshaft position – actuator circuit (Bank 1)	Inspect the B camshaft actuator solenoid, wiring and connector. Check power/control signals and replace the solenoid if defective.
P0014	B camshaft position – timing over advanced or system performance (Bank 1)	Check engine oil, VVT solenoid and actuator operation. Inspect mechanical cam timing and repair any timing or oil-control problem.
P0015	B camshaft position – timing over retarded (Bank 1)	Check oil pressure and condition, then inspect the B VVT solenoid and actuator. Verify mechanical timing and repair the cause of the delayed camshaft position.
P0016	Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A	Check the crankshaft and camshaft sensors, wiring and connectors. Verify timing marks and timing chain/belt condition; correct mechanical timing if necessary.
P0020	A camshaft position actuator circuit (Bank 2)	Inspect the Bank 2 A VVT solenoid, wiring, connector and power supply. Test the solenoid and replace it if faulty.
P0021	A camshaft postion – timing over-advanced or system performance (Bank 2)	Check engine oil level/condition and inspect the VVT solenoid and actuator. Verify camshaft timing and repair any oil-control or mechanical timing issue.
P0022	A camshaft position – timing over retarded (Bank 2)	Inspect engine oil, VVT solenoid and actuator. Check oil passages and mechanical timing, then repair or replace the faulty component.
P0023	B camshaft position – actuator circuit (Bank 2)	Check the Bank 2 B VVT solenoid circuit, wiring and connector. Test the solenoid and replace it if it does not operate correctly.
P0024	B camshaft position – timing over advanced or system performance (Bank 2)	Check oil condition and VVT operation. Inspect the B actuator and verify mechanical cam timing; repair or replace faulty parts.
P0025	B camshaft position – timing over retaded (Bank 2)	Check oil level/pressure and the B VVT solenoid. Inspect the actuator, oil passages and timing chain/belt for problems.
P0030	H02S heater control circuit (Bank 1 sensor 1)	Inspect the oxygen sensor heater wiring, connector, fuse and power supply. Test the heater resistance and replace the sensor if the heater is open or defective.
P0031	H02S heater control circuit low (Bank 1 sensor 1)	Check for low voltage in the O2 sensor heater circuit. Inspect wiring for shorting or poor connections and test the heater control circuit.
P0032	H02S heater control circuit high (Bank 1 sensor 1)	Check the heater circuit for excessive voltage or a control fault. Inspect wiring, fuse, relay and ECU control; replace the sensor if necessary.
P0033	Turbo charger bypass valve control circuit	Inspect the turbo bypass valve, actuator, wiring and connector. Check power/control signals and replace the valve or actuator if faulty.
P0034	Turbo charger bypass valve control circuit low	Check the bypass valve circuit for low voltage, short to ground or poor power supply. Inspect wiring and actuator operation and repair as necessary.
P0035	Turbo charger bypass valve control circuit high	Inspect the bypass valve circuit for excessive voltage or an open control circuit. Check wiring, connector and actuator, and replace faulty components.
P0036	H02S heater control circuit (Bank 1 sensor 2)	Inspect the downstream O2 sensor heater wiring, fuse and connector. Test heater resistance and replace the sensor if defective.
P0037	H02S heater control circuit low (Bank 1 sensor 2)	Check the sensor heater circuit for low voltage or a short to ground. Inspect wiring and power supply and replace the sensor if required.
P0038	H02S heater control circuit high (Bank 1 sensor 2)	Check for excessive voltage in the heater circuit. Inspect wiring, connector and ECU control; replace the O2 sensor if the heater is faulty.
P0042	H02S heater control circuit (Bank 1 sensor 3)	Inspect the Bank 1 Sensor 3 O2 heater circuit, wiring, fuse and connector. Test heater resistance and replace the sensor if necessary.
P0043	H02S heater control circuit Low (Bank 1 sensor 3)	Check the heater circuit for low voltage or a short to ground. Inspect wiring and connections and repair or replace the sensor as needed.
P0044	H02S heater control circuit High (Bank 1 sensor 3)	Check for excessive voltage or a wiring/control fault in the heater circuit. Repair wiring or replace the sensor if defective.
P0050	H02S heater control circuit (Bank 2 sensor 1)	Inspect the Bank 2 Sensor 1 O2 heater wiring, connector, fuse and power supply. Test the heater and replace the sensor if faulty.
P0051	H02S heater control circuit Low (Bank 2 sensor 1)	Check for low voltage or a short to ground in the heater circuit. Inspect wiring, connections and ECU control and repair as necessary.
P0052	H02S heater control circuit High (Bank 2 sensor 1)	Inspect the heater circuit for excessive voltage or an electrical fault. Check wiring, fuse, connector and sensor heater resistance.
P0056	H02S heater control circuit (Bank 2 sensor 2)	Inspect the Bank 2 Sensor 2 O2 heater circuit, wiring and connector. Test heater resistance and replace the oxygen sensor if the heater is defective.
P0057	H02S heater control circuit Low (Bank 2 sensor 2)	Check the O2 sensor heater circuit for low voltage or a short to ground. Inspect wiring, connector and power supply; replace the sensor if the heater is faulty.
P0058	H02S heater control circuit High (Bank 2 sensor 2)	Check for excessive voltage in the heater circuit. Inspect wiring, connector and ECU control; replace the O2 sensor if necessary.
P0062	H02S heater control circuit (Bank 2 sensor 3)	Inspect the O2 sensor heater wiring, connector, fuse and power supply. Test heater resistance and replace the sensor if defective.
P0063	H02S heater control circuit Low (Bank 2 sensor 3)	Check the heater circuit for low voltage or a short to ground. Repair wiring or connections and replace the sensor if the heater is damaged.
P0064	H02S heater control circuit High (Bank 2 sensor 3)	Inspect the heater circuit for excessive voltage or a wiring/control fault. Test the sensor heater and repair or replace the faulty component.
P0065	Air assisted injector control range / performance	Inspect the air-assisted injector, air supply and control valve. Check for blocked passages, vacuum/air leaks and wiring problems; repair or replace faulty components.
P0066	Air assisted injector control circuit or circuit low	Check the injector control circuit for low voltage or a short to ground. Inspect wiring, connector and power supply and test the injector/valve.
P0067	Air assisted injector control circuit high	Check for excessive voltage or an open/control fault in the injector circuit. Inspect wiring and connector and replace the injector or control valve if faulty.
P0070	Ambient air temperature sensor circuit	Inspect the ambient temperature sensor, wiring and connector. Check the reference voltage and ground and replace the sensor if defective.
P0071	Ambient air temperature sensor range/performance	Compare the sensor reading with the actual outside temperature. Check wiring and sensor resistance and replace the sensor if readings are incorrect.
P0072	Ambient air temperature sensor circuit low input	Check for a low signal caused by a short to ground, faulty sensor or wiring problem. Repair the circuit or replace the sensor.
P0073	Ambient air temperature sensor circuit high input	Check for an excessively high signal caused by an open circuit, poor connection or faulty sensor. Repair wiring or replace the sensor.
P0074	Ambient air temperature sensor circuit intermittent	Inspect the sensor connector and wiring for loose or damaged connections. Check the signal while moving the harness and replace the sensor if necessary.
P0075	Intake valve control solenoid circuit (Bank 1)	Inspect the intake valve control solenoid, wiring, connector and power supply. Test solenoid resistance and replace it if defective.
P0076	Intake valve control solenoid circuit low (Bank 1)	Check the solenoid circuit for low voltage or a short to ground. Inspect wiring and ECU control and replace the solenoid if faulty.
P0077	Intake valve control solenoid circuit high (Bank 1)	Check for excessive voltage or an open circuit. Inspect the solenoid, wiring and connector and repair or replace the faulty component.
P0078	Exhaust valve control solenoid circuit (Bank 1)	Inspect the exhaust valve control solenoid, wiring and connector. Check power/control signals and replace the solenoid if necessary.
P0079	Exhaust valve control solenoid circuit low (Bank 1)	Check for low voltage or a short to ground in the solenoid circuit. Repair wiring and test/replace the solenoid if defective.
P0080	Exhaust valve control solenoid circuit high (Bank 1)	Inspect the circuit for excessive voltage or an open circuit. Check the solenoid and ECU control circuit and repair as required.
P0081	Intake valve control solenoid circuit (Bank 2)	Check the Bank 2 intake valve control solenoid, wiring and connector. Test resistance and control voltage and replace the solenoid if faulty.
P0082	Intake valve control solenoid circuit low (Bank 2)	Check for low voltage or a short to ground. Inspect wiring, connector and solenoid operation and repair or replace as necessary.
P0083	Intake valve control solenoid circuit high (Bank 2)	Check for excessive voltage or an open circuit. Inspect wiring and solenoid control and replace the faulty component if needed.
P0084	Exhaust valve control solenoid circuit (Bank 2)	Inspect the Bank 2 exhaust valve control solenoid, wiring and connector. Test the solenoid and repair or replace it if defective.
P0085	Exhaust valve control solenoid circuit low (Bank 2)	Check the circuit for low voltage or a short to ground. Inspect wiring and connector and test the solenoid before replacement.
P0086	Exhaust valve control solenoid circuit high (Bank 2)	Inspect for excessive voltage or an open circuit. Check the solenoid, wiring and ECU control circuit and repair as necessary.
P0030	Heated Oxygen Sensor (H02S) Heater Control Circuit Bank 1 Sensor 1	Check the O2 heater fuse, wiring, connector and power supply. Test heater resistance and replace the sensor if the heater circuit is open.
P0031	Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 1	Check for low voltage or a short to ground in the heater circuit. Inspect wiring and power supply and replace the sensor if required.
P0032	Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 1 Sensor 1	Check for excessive voltage in the heater circuit. Inspect wiring, connector and ECU control and replace the sensor if the heater is faulty.
P0036	Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2	Inspect the downstream O2 sensor heater circuit, fuse, wiring and connector. Test heater resistance and replace the sensor if necessary.
P0037	Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 2	Check the heater circuit for low voltage or a short to ground. Repair wiring/connectors and replace the O2 sensor if the heater is defective.
P0038	Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 1 Sensor 2	Check the heater circuit for excessive voltage. Inspect the O2 sensor wiring, connector and power supply, and test the heater circuit before replacing the sensor.
P0056	Heated Oxygen Sensor (HO2S) Heater Circuit Bank 2 Sensor 2	Inspect the Bank 2 Sensor 2 O2 heater fuse, wiring, connector and power supply. Test heater resistance and replace the sensor if the heater circuit is defective.
P0057	Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 2 Sensor 2	Check the heater circuit for low voltage or a short to ground. Inspect wiring, connector and power supply and replace the O2 sensor if the heater is defective.
P0058	Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 2 Sensor 2	Inspect the heater circuit for excessive voltage or an open circuit. Check the wiring, connector and ECU control circuit and replace the sensor if necessary.
P0068	Throttle Body Airflow Performance (PCM)	Inspect the throttle body, intake system and air passages for restrictions or leaks. Check the throttle position and airflow sensors, wiring and connectors and clean or repair the throttle body if required.
P0100	MAF Sensor Circuit Insufficient Activity	Inspect the MAF sensor wiring, connector and power supply. Check for contamination or restricted airflow and test the sensor output before replacing it if necessary.
P0101	Mass Air Flow (MAF) Sensor Performance	Inspect the MAF sensor, air intake system and wiring for contamination, leaks or restrictions. Verify the sensor readings and repair or replace the faulty component if required.
P0102	Mass Air Flow (MAF) Sensor Circuit Low Frequency	Check the MAF signal for low frequency or insufficient output. Inspect the sensor, wiring, connector and power supply and replace the sensor if the signal remains incorrect.
P0103	Mass Air Flow (MAF) Sensor Circuit High Frequency	Check the MAF signal for excessive frequency or voltage. Inspect the sensor wiring, connector and power supply and test the sensor before replacement.
P0104	Mass Air Flow Circuit Intermittent	Inspect the MAF sensor wiring and connector for loose, damaged or corroded connections. Check for intermittent signal loss and repair the circuit or replace the sensor if necessary.
P0105	MAP Sensor Circuit Insufficient Activity	Inspect the MAP sensor, wiring, connector and vacuum supply. Check the sensor signal and power supply and repair or replace the faulty component if required.
P0106	Manifold Absolute Pressure (MAP) System Performance	Inspect the MAP sensor and intake system for vacuum leaks or restrictions. Verify the sensor signal against engine operating conditions and repair or replace the faulty component if necessary.
P0107	Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage	Check the MAP sensor circuit for low voltage or a short to ground. Inspect wiring, connector, reference voltage and sensor output and replace the sensor if defective.
P0108	Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage	Check the MAP sensor circuit for excessive voltage or an open signal circuit. Inspect wiring, connector, reference voltage and sensor output and replace the sensor if required.
P0109	Manifold Absolute Pressure Circuit Intermittent	Inspect the MAP sensor wiring and connector for loose or damaged connections. Check for intermittent signal changes and repair the circuit or replace the sensor if necessary.
P0110	Intake Air Temperature (IAT) Sensor Circuit	Inspect the IAT sensor, wiring and connector for damage or poor connections. Check the sensor resistance and circuit continuity and replace the sensor if defective.
P0111	Intake Air Temperature (IAT) Sensor Performance	Inspect the IAT sensor and intake system for abnormal temperature readings or airflow issues. Check sensor resistance and wiring and replace the sensor if readings are outside specification.
P0112	Intake Air Temperature (IAT) Sensor Circuit Low Voltage	Check the IAT circuit for low voltage or a short to ground. Inspect wiring, connector and sensor resistance and replace the sensor if necessary.
P0113	Intake Air Temperature (IAT) Sensor Circuit High Voltage	Check the IAT circuit for excessive voltage or an open circuit. Inspect wiring, connector and sensor resistance and replace the sensor if defective.
P0114	Intake Air Temperature Circuit Intermittent	Inspect the IAT sensor wiring and connector for loose, damaged or corroded connections. Check for intermittent signal loss and repair the circuit or replace the sensor if required.
P0115	Engine Coolant Temperature (ECT) Sensor Circuit	Inspect the ECT sensor, wiring and connector for damage or poor connections. Check sensor resistance and circuit continuity and replace the sensor if defective.
P0116	Engine Coolant Temperature (ECT) Sensor Performance	Inspect the ECT sensor and cooling system for abnormal temperature readings. Check sensor resistance and wiring and verify the temperature signal before replacing the sensor.
P0117	Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage	Check the ECT circuit for low voltage or a short to ground. Inspect wiring, connector and sensor resistance and replace the sensor if defective.
P0118	Engine Coolant Temperature (ECT) Sensor Circuit High Voltage	Check the ECT circuit for excessive voltage or an open circuit. Inspect wiring, connector and sensor resistance and replace the sensor if necessary.
P0119	Engine Coolant Temperature Circuit Intermittent	Inspect the ECT sensor wiring and connector for loose or damaged connections. Check for intermittent signal changes and repair the circuit or replace the sensor if required.
P0120	TP System Performance	Inspect the throttle position sensor, throttle body, wiring and connector. Check the TP signal through the operating range and repair or replace the faulty component if readings are incorrect.
P0121	TP Sensor Circuit Insufficient Activity	Check the TP sensor signal for insufficient activity or an incorrect voltage range. Inspect wiring, connector and sensor power supply and replace the sensor if the signal remains abnormal.
P0122	Throttle Position (TP) Sensor Circuit Low Voltage	Check the TP sensor circuit for low voltage or a short to ground. Inspect wiring, connector and reference voltage and replace the sensor if the signal is incorrect.
P0123	Throttle Position (TP) Sensor Circuit High Voltage	Check the TP sensor circuit for excessive voltage or an open circuit. Inspect wiring, connector and reference voltage and replace the sensor if the signal remains high.
P0124	Throttle Position Sensor 1 Circuit Intermittent	Inspect TP Sensor 1 wiring and connector for loose, damaged or corroded connections. Check for intermittent signal changes through the throttle range and repair or replace the sensor if necessary.
P0125	Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control	Check the ECT sensor and cooling system for low engine temperature or slow warm-up. Inspect the thermostat, sensor wiring and connector and repair or replace the faulty component if required.
P0126	Insufficient ECT for Stable Operation	Inspect the cooling system, thermostat and ECT sensor for insufficient operating temperature. Check sensor readings, wiring and connector and repair or replace the faulty component if necessary.
P0128	Coolant Thermostat Below Thermostat Regulating Temperature	Check the thermostat for being stuck open or regulating below specification. Inspect the ECT sensor and cooling system and replace the thermostat or faulty component if required.
P0130	Heated Oxygen Sensor (HO2S) Circuit Closed Loop (CL) Performance Bank 1 Sensor 1	Inspect the Bank 1 Sensor 1 O2 sensor, wiring and connector for damage or poor connections. Check the sensor signal and exhaust system for leaks and replace the sensor if performance remains incorrect.
P0131	Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 1 Sensor 1	Check the Bank 1 Sensor 1 O2 circuit for low voltage or a short to ground. Inspect wiring, connector and sensor signal and repair the circuit or replace the sensor if defective.
P0132	Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 1 Sensor 1	Check the Bank 1 Sensor 1 O2 circuit for excessive voltage or a short to power. Inspect wiring, connector and sensor signal and replace the sensor if necessary.
P0133	Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 1	Inspect the Bank 1 Sensor 1 O2 sensor and wiring for contamination, damage or poor connections. Check sensor response and exhaust for leaks and replace the sensor if response is too slow.
P0134	Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 1 Sensor 1	Check the Bank 1 Sensor 1 O2 sensor signal for insufficient activity. Inspect wiring, connector and sensor power supply and replace the sensor if the signal remains inactive.
P0135	Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 1	Inspect the Bank 1 Sensor 1 O2 heater fuse, wiring, connector and power supply. Test heater resistance and replace the sensor if the heater circuit is defective.
P0136	Heated Oxygen Sensor (HO2S) Circuit Bank 1 Sensor 2	Inspect the Bank 1 Sensor 2 O2 sensor, wiring and connector for damage or poor connections. Check the sensor signal and repair the circuit or replace the sensor if defective.
P0137	Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 1 Sensor 2	Check the Bank 1 Sensor 2 O2 circuit for low voltage or a short to ground. Inspect wiring, connector and sensor signal and replace the sensor if necessary.
P0138	Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 1 Sensor 2	Check the Bank 1 Sensor 2 O2 circuit for excessive voltage or a short to power. Inspect wiring, connector and sensor signal and replace the sensor if defective.
P0139	Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 2	Inspect the Bank 1 Sensor 2 O2 sensor, wiring and connector for contamination or damage. Check sensor response and exhaust for leaks and replace the sensor if response is too slow.
P0140	Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 1 Sensor 2	Check the Bank 1 Sensor 2 O2 sensor signal for insufficient activity. Inspect wiring, connector and sensor power supply and replace the sensor if the signal remains inactive.
P0141	Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 2	Inspect the Bank 1 Sensor 2 O2 heater fuse, wiring, connector and power supply. Test heater resistance and replace the sensor if the heater circuit is defective.
P0142	Heated Oxygen Sensor (HO2S) Circuit Bank 1 Sensor 3	Inspect the Bank 1 Sensor 3 O2 sensor, wiring and connector for damage or poor connections. Check the sensor signal and repair the circuit or replace the sensor if defective.
P0143	Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 1 Sensor 3	Check the Bank 1 Sensor 3 O2 circuit for low voltage or a short to ground. Inspect wiring, connector and sensor signal and replace the sensor if necessary.
P0144	Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 1 Sensor 3	Check the Bank 1 Sensor 3 O2 circuit for excessive voltage or a short to power. Inspect wiring, connector and sensor signal and replace the sensor if defective.
P0145	Heated Oxygen Sensor (HO2S) Circuit Bank 1 Sensor 2 Slow Response	Inspect the specified O2 sensor, wiring and connector for contamination, damage or poor connections. Check sensor response and exhaust for leaks and replace the sensor if response is too slow.
P0146	Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 1 Sensor 3	Check the Bank 1 Sensor 3 O2 sensor signal for insufficient activity. Inspect wiring, connector and sensor power supply and replace the sensor if the signal remains inactive.
P0147	Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3	Inspect the Bank 1 Sensor 3 O2 heater fuse, wiring, connector and power supply. Test heater resistance and replace the sensor if the heater circuit is defective.
P0150	Heated Oxygen Sensor (HO2S) Circuit Closed Loop (CL) Performance Bank 2 Sensor 1	Inspect the Bank 2 Sensor 1 O2 sensor, wiring and connector for damage or poor connections. Check the sensor signal and exhaust system for leaks and replace the sensor if performance remains incorrect.
P0151	Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 2 Sensor 1	Check the Bank 2 Sensor 1 O2 circuit for low voltage or a short to ground. Inspect wiring, connector and sensor signal and repair the circuit or replace the sensor if defective.
P0152	Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 2 Sensor 1	Check the Bank 2 Sensor 1 O2 circuit for excessive voltage or a short to power. Inspect wiring, connector and sensor signal and replace the sensor if necessary.
P0153	Heated Oxygen Sensor (HO2S) Slow Response Bank 2 Sensor 1	Inspect the Bank 2 Sensor 1 O2 sensor and wiring for contamination, damage or poor connections. Check sensor response and exhaust for leaks and replace the sensor if response is too slow.
P0154	Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 2 Sensor 1	Check the Bank 2 Sensor 1 O2 sensor signal for insufficient activity. Inspect wiring, connector and sensor power supply and replace the sensor if the signal remains inactive.
P0155	Heated Oxygen Sensor (HO2S) Heater Performance Bank 2 Sensor 1	Inspect the Bank 2 Sensor 1 O2 heater fuse, wiring, connector and power supply. Test heater resistance and replace the sensor if the heater circuit is defective.
P0156	Heated Oxygen Sensor (HO2S) Circuit Bank 2 Sensor 2	Inspect the Bank 2 Sensor 2 O2 sensor, wiring and connector for damage or poor connections. Check the sensor signal and repair the circuit or replace the sensor if defective.
P0157	Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 2 Sensor 2	Check the Bank 2 Sensor 2 O2 circuit for low voltage or a short to ground. Inspect wiring, connector and sensor signal and replace the sensor if necessary.
P0158	Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 2 Sensor 2	Check the Bank 2 Sensor 2 O2 circuit for excessive voltage or a short to power. Inspect wiring, connector and sensor signal and replace the sensor if defective.
P0159	Heated Oxygen Sensor (HO2S) Slow Response Bank 2 Sensor 2	Inspect Bank 2 Sensor 2 for contamination, damage and proper installation. Check wiring and connectors for damage or poor contact and verify sensor response; replace the sensor if faulty.
P0160	Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 2 Sensor 2	Inspect Bank 2 Sensor 2 wiring, connector and power supply. Check the sensor for contamination or damage and verify signal activity; replace the sensor if defective.
P0161	Heated Oxygen Sensor (HO2S) Heater Performance Bank 2 Sensor 2	Check the Bank 2 Sensor 2 heater circuit, wiring, connector and power supply. Measure heater resistance and verify proper voltage; replace the sensor if the heater is faulty.
P0162	Heated Oxygen Sensor (HO2S) Circuit Bank 2 Sensor 3	Inspect Bank 2 Sensor 3 wiring and connector for damage, corrosion or poor contact. Check the sensor power and signal circuits and replace the sensor if defective.
P0163	Heated Oxygen Sensor (HO2S) Circuit Bank 2 Sensor 3 Low Voltage	Inspect Bank 2 Sensor 3 wiring and connector for shorts to ground or poor connections. Verify sensor power and signal voltage and replace the sensor if the signal remains too low.
P0164	Heated Oxygen Sensor (HO2S) Circuit Bank 2 Sensor 3 High Voltage	Inspect Bank 2 Sensor 3 wiring and connector for shorts to voltage or damaged insulation. Check sensor signal voltage and replace the sensor if the circuit remains excessively high.
P0165	Heated Oxygen Sensor (HO2S) Circuit Bank 2 Sensor 3 Slow Response	Inspect Bank 2 Sensor 3 for contamination or damage and check wiring and connectors. Verify sensor response and exhaust conditions; replace the sensor if response remains slow.
P0166	Heated Oxygen Sensor (HO2S) Circuit Bank 2 Sensor 3 No Activity Detected	Inspect Bank 2 Sensor 3 wiring, connector and power supply. Check the sensor for contamination or damage and verify signal activity; replace the sensor if no activity is detected.
P0167	Heated Oxygen Sensor (HO2S) Heater Circuit Bank 2 Sensor 3	Check the Bank 2 Sensor 3 heater circuit, wiring, connector and power supply. Measure heater resistance and verify proper voltage; repair the circuit or replace the sensor if necessary.
P0169	Fuel Composition Sensor	Inspect the fuel composition sensor, wiring and connector for damage or poor connections. Verify sensor readings and fuel composition data; replace the sensor if readings are incorrect.
P0170	Fuel Trim Bank 1	Inspect the fuel system, intake system and vacuum lines for leaks. Check fuel pressure, injectors, MAF sensor and oxygen sensor operation; repair the cause of the incorrect fuel trim.
P0171	Fuel Trim System Lean Bank 1	Check for intake and vacuum leaks, restricted fuel supply and low fuel pressure. Inspect the MAF sensor, injectors and oxygen sensors and correct the condition causing the lean mixture.
P0172	Fuel Trim System Rich Bank 1	Inspect the intake system and MAF sensor for contamination or incorrect readings. Check fuel pressure, injectors and oxygen sensor operation and repair the cause of the rich mixture.
P0173	Fuel Trim Bank 2	Inspect the fuel system and intake system for leaks or restrictions. Check fuel pressure, injectors, MAF sensor and oxygen sensors and correct the cause of the abnormal fuel trim.
P0174	Fuel Trim System Lean Bank 2	Check for intake and vacuum leaks, restricted fuel delivery and low fuel pressure. Inspect the MAF sensor, injectors and oxygen sensors and repair the cause of the lean mixture.
P0175	Fuel Trim System Rich Bank 2	Inspect the MAF sensor and intake system for incorrect readings or restrictions. Check fuel pressure, injectors and oxygen sensors and correct the condition causing the rich mixture.
P0176	Fuel Composition Sensor Circuit	Inspect the fuel composition sensor wiring and connector for damage, corrosion or poor contact. Check the sensor power, ground and signal circuits and repair or replace faulty components.
P0177	Fuel Composition Sensor Circuit Performance	Inspect the fuel composition sensor and its wiring for damage or poor connections. Verify sensor readings and fuel composition data and replace the sensor if performance is outside specifications.
P0178	Fuel Composition Sensor Circuit Low Voltage	Inspect the fuel composition sensor wiring for shorts to ground, damaged insulation or poor connections. Verify power and signal voltage and repair the circuit or replace the sensor if necessary.
P0179	Fuel Composition Sensor Circuit High Voltage	Inspect the fuel composition sensor wiring for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and repair the circuit or replace the sensor if necessary.
P0180	Fuel Temperature Sensor 1 Circuit	Inspect the Fuel Temperature Sensor 1 wiring and connector for damage, corrosion or poor contact. Check sensor resistance and signal voltage and replace the sensor if defective.
P0181	Fuel Temp. Sensor 1 Circuit Performance	Inspect Fuel Temperature Sensor 1 for contamination, damage or incorrect readings. Check wiring, connector and sensor resistance and replace the sensor if its performance is outside specifications.
P0182	Fuel Temperature Sensor Circuit Low Voltage	Inspect Fuel Temperature Sensor 1 wiring and connector for shorts to ground or poor connections. Verify sensor signal voltage and replace the sensor if the voltage remains too low.
P0183	Fuel Temperature Sensor Circuit High Voltage	Inspect Fuel Temperature Sensor 1 wiring for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and repair the circuit or replace the sensor if necessary.
P0184	Fuel Temperature Sensor 1 Circuit Intermittent	Inspect Fuel Temperature Sensor 1 wiring and connector for loose connections, corrosion or intermittent contact. Check the sensor signal while moving the harness and replace the sensor if the fault persists.
P0185	Fuel Temperature Sensor 2 Circuit	Inspect Fuel Temperature Sensor 2 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal circuits and replace the sensor if defective.
P0186	Fuel Temp. Sensor 2 Circuit Performance	Inspect Fuel Temperature Sensor 2 for contamination, damage or incorrect readings. Check wiring, connector and sensor resistance and replace the sensor if its performance is outside specifications.
P0187	Fuel Temperature Sensor 2 Circuit Low Voltage	Inspect Fuel Temperature Sensor 2 wiring and connector for shorts to ground or poor connections. Verify sensor signal voltage and replace the sensor if the voltage remains too low.
P0188	Fuel Temperature Sensor 2 Circuit High Voltage	Inspect Fuel Temperature Sensor 2 wiring for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and repair the circuit or replace the sensor if necessary.
P0189	Fuel Temperature Sensor 2 Circuit Intermittent	Inspect Fuel Temperature Sensor 2 wiring and connector for loose connections, corrosion or intermittent contact. Check the sensor signal while moving the harness and replace the sensor if the fault persists.
P0190	Fuel Rail Pressure Sensor Circuit	Inspect the fuel rail pressure sensor wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal circuits and replace the sensor if defective.
P0191	Fuel Rail Pressure Sensor Circuit Performance	Check the fuel rail pressure sensor for contamination, damage or incorrect readings. Verify actual fuel pressure against sensor data and inspect wiring, connector and fuel system components.
P0192	Fuel Rail Pressure Sensor Circuit Low Voltage	Inspect the fuel rail pressure sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the signal remains too low.
P0193	Fuel Rail Pressure Sensor Circuit High Voltage	Inspect the fuel rail pressure sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the signal remains too high.
P0194	Fuel Rail Pressure Sensor Circuit Intermittent	Inspect the fuel rail pressure sensor wiring and connector for loose connections, corrosion or intermittent contact. Check the sensor signal while moving the harness and repair or replace faulty components.
P0195	Engine Oil Temperature Sensor	Inspect the engine oil temperature sensor wiring and connector for damage, corrosion or poor contact. Check sensor resistance and signal voltage and replace the sensor if defective.
P0196	Engine Oil Temperature Sensor Performance	Check the engine oil temperature sensor for contamination, damage or incorrect readings. Verify sensor resistance and compare temperature data with actual engine conditions; replace the sensor if necessary.
P0197	Engine Oil Temperature Sensor Low Voltage	Inspect the engine oil temperature sensor circuit for shorts to ground or damaged wiring. Verify sensor signal voltage and connector condition and replace the sensor if the voltage remains too low.
P0198	Engine Oil Temperature Sensor High Voltage	Inspect the engine oil temperature sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and repair the circuit or replace the sensor if the voltage remains too high.
P0199	Engine Oil Temperature Sensor Intermittent	Inspect the engine oil temperature sensor wiring and connector for loose connections, corrosion or intermittent contact. Check the sensor signal while moving the harness and replace the sensor if the fault persists.
P0200	Injector Control Circuit	Inspect the injector wiring, connectors and power supply for damage or poor connections. Check injector resistance and control signals and repair the circuit or replace faulty injectors as necessary.
P0201	Injector 1 Control Circuit	Inspect Injector 1 wiring and connector for damage, corrosion or poor contact. Check injector resistance, power supply and control signal and replace the injector if defective.
P0202	Injector 2 Control Circuit	Inspect Injector 2 wiring and connector for damage, corrosion or poor contact. Check injector resistance, power supply and control signal and replace the injector if defective.
P0203	Injector 3 Control Circuit	Inspect Injector 3 wiring and connector for damage, corrosion or poor contact. Check injector resistance, power supply and control signal and replace the injector if defective.
P0204	Injector 4 Control Circuit	Inspect Injector 4 wiring and connector for damage, corrosion or poor contact. Check injector resistance, power supply and control signal and replace the injector if defective.
P0205	Injector 5 Control Circuit	Inspect Injector 5 wiring and connector for damage, corrosion or poor contact. Check injector resistance, power supply and control signal and replace the injector if defective.
P0206	Injector 6 Control Circuit	Inspect Injector 6 wiring and connector for damage, corrosion or poor contact. Check injector resistance, power supply and control signal and replace the injector if defective.
P0207	Injector 7 Control Circuit	Inspect Injector 7 wiring and connector for damage, corrosion or poor contact. Check injector resistance, power supply and control signal and replace the injector if defective.
P0208	Injector 8 Control Circuit	Inspect Injector 8 wiring and connector for damage, corrosion or poor contact. Check injector resistance, power supply and control signal and replace the injector if defective.
P0209	Injector 9 Control Circuit	Inspect Injector 9 wiring and connector for damage, corrosion or poor contact. Check injector resistance, power supply and control signal and replace the injector if defective.
P0210	Injector 10 Control Circuit	Inspect Injector 10 wiring and connector for damage, corrosion or poor contact. Check injector resistance, power supply and control signal and replace the injector if defective.
P0211	Injector 11 Control Circuit	Inspect Injector 11 wiring and connector for damage, corrosion or poor contact. Check injector resistance, power supply and control signal and replace the injector if defective.
P0212	Injector 12 Control Circuit	Inspect Injector 12 wiring and connector for damage, corrosion or poor contact. Check injector resistance, power supply and control signal and replace the injector if defective.
P0213	Cold Start Injector 1	Inspect Cold Start Injector 1 wiring, connector and power supply for damage or poor contact. Check injector resistance and control signal and replace the injector if defective.
P0214	Cold Start Injector 2	Inspect Cold Start Injector 2 wiring, connector and power supply for damage or poor contact. Check injector resistance and control signal and replace the injector if defective.
P0215	Engine Shutoff Control Circuit	Inspect the engine shutoff control circuit, wiring and connectors for damage or poor connections. Check the shutoff solenoid, power supply and control signal and replace faulty components as necessary.
P0216	Injection Timing Control Circuit	Inspect the injection timing control system, wiring and connectors for damage or poor contact. Check the timing control actuator and verify injection timing; repair or replace faulty components.
P0217	Engine Overtemp Condition	Check the engine coolant level, cooling system and thermostat operation. Inspect the radiator, cooling fan, water pump and coolant temperature sensor and correct the cause of the overheating condition.
P0218	Transmission Fluid Overtemperature	Check the transmission fluid level and condition and inspect the transmission cooling system. Check the cooler, lines, temperature sensor and transmission operation and correct the cause of overheating.
P0219	Engine Overspeed Condition	Check the engine speed data and inspect the crankshaft position sensor and related wiring. Verify engine control operation and investigate mechanical or control-system causes of excessive engine speed.
P0220	APP Sensor 2 Circuit	Inspect APP Sensor 2 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal circuits and replace the sensor if defective.
P0221	APP (Throttle Position) Sensor 2 Circuit Performance	Inspect APP Sensor 2 for contamination, damage or incorrect readings. Verify sensor signal against accelerator pedal position and check wiring and connector condition.
P0222	APP (Throttle Position) Sensor 2 Circuit Low Voltage	Inspect APP Sensor 2 circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the signal remains too low.
P0223	APP (Throttle Position) Sensor 2 Circuit High Voltage	Inspect APP Sensor 2 circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the signal remains too high.
P0224	Throttle Position Sensor 2 Intermittent	Inspect APP Sensor 2 wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal while moving the harness and replace the sensor if the fault persists.
P0225	APP Sensor 3 Circuit	Inspect APP Sensor 3 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal circuits and replace the sensor if defective.
P0226	APP Sensor 3 Circuit Performance	Inspect APP Sensor 3 for contamination, damage or incorrect readings. Verify sensor signal against accelerator pedal position and check wiring and connector condition.
P0227	APP Sensor 3 Circuit Low Voltage	Inspect APP Sensor 3 circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the signal remains too low.
P0228	APP Sensor 3 Circuit High Voltage	Inspect APP Sensor 3 circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the signal remains too high.
P0229	Throttle Position Sensor 3 Intermittent	Inspect APP Sensor 3 wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal while moving the harness and replace the sensor if the fault persists.
P0230	Fuel Pump Relay Control Circuit	Inspect the fuel pump relay, wiring and connectors for damage or poor contact. Check relay power, ground and control signals and replace the relay if defective.
P0231	Fuel Pump Feedback Circuit Low Voltage	Inspect the fuel pump circuit for low voltage, poor connections or damaged wiring. Check fuel pump power supply, relay and ground circuit and repair the cause of the low feedback voltage.
P0232	Fuel Pump Feedback Circuit High Voltage	Inspect the fuel pump circuit for shorts to voltage or damaged wiring. Check relay contacts, pump power supply and feedback circuit and repair the cause of the high voltage.
P0233	Fuel Pump Secondary Circuit Intermittent	Inspect the fuel pump secondary circuit wiring, relay and connectors for loose or intermittent connections. Check pump voltage and ground while operating and repair or replace faulty components.
P0234	Turbocharger Engine Overboost Condition	Check for restricted intake or exhaust flow, faulty boost control components and excessive boost pressure. Inspect the wastegate, boost control solenoid, hoses and boost sensor and correct the cause of overboost.
P0235	Turbocharger Boost Sensor 1 Circuit	Inspect Boost Sensor 1 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal voltage and replace the sensor if defective.
P0236	Turbocharger Boost System	Inspect the turbocharger boost system for leaks, damaged hoses or restricted air flow. Check the boost sensor, wastegate and boost control system and repair any faulty components.
P0237	Turbocharger Boost Sensor Circuit Low Voltage	Inspect the turbocharger boost sensor circuit for shorts to ground or damaged wiring. Verify sensor power and signal voltage and replace the sensor if the signal remains too low.
P0238	Turbocharger Boost Sensor Circuit High Voltage	Inspect the turbocharger boost sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the signal remains too high.
P0239	Turbocharger Boost Sensor 2 Circuit	Inspect Boost Sensor 2 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal circuits and replace the sensor if defective.
P0240	Turbocharger Boost Sensor 2 Performance	Inspect Boost Sensor 2 for contamination, damage or incorrect readings. Compare boost sensor data with actual boost pressure and check the turbocharger control system for faults.
P0241	Turbocharger Boost Sensor 2 Circuit Low Voltage	Inspect Boost Sensor 2 circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the signal remains too low.
P0242	Turbocharger Boost Sensor 2 Circuit High Voltage	Inspect Boost Sensor 2 circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the signal remains too high.
P0243	Turbocharger Wastegate Solenoid 1	Inspect Turbocharger Wastegate Solenoid 1 wiring and connector for damage, corrosion or poor contact. Check power supply, ground and control signal and replace the solenoid if defective.
P0244	Turbocharger Wastegate Solenoid 1 Performance	Inspect Wastegate Solenoid 1 and its vacuum or boost control lines for damage or restriction. Check solenoid operation and control signals and replace the solenoid if performance remains incorrect.
P0245	Turbocharger Wastegate Solenoid 1 Low Voltage	Inspect Wastegate Solenoid 1 circuit for shorts to ground, damaged wiring or poor connections. Verify solenoid power and control voltage and replace the solenoid if necessary.
P0246	Turbocharger Wastegate Solenoid 1 High Voltage	Inspect Wastegate Solenoid 1 circuit for shorts to voltage or damaged insulation. Check solenoid control voltage and connector condition and repair the circuit or replace the solenoid if necessary.
P0247	Turbocharger Wastegate Solenoid 2	Inspect Turbocharger Wastegate Solenoid 2 wiring and connector for damage, corrosion or poor contact. Check power supply, ground and control signal and replace the solenoid if defective.
P0248	Turbocharger Wastegate Solenoid 2 Performance	Inspect Wastegate Solenoid 2 and its vacuum or boost control lines for damage or restriction. Check solenoid operation and control signals and replace the solenoid if performance remains incorrect.
P0249	Turbocharger Wastegate Solenoid 2 Low Voltage	Inspect Wastegate Solenoid 2 circuit for shorts to ground, damaged wiring or poor connections. Verify solenoid power and control voltage and repair the circuit or replace the solenoid if necessary.
P0250	Turbocharger Wastegate Solenoid 2 High Voltage	Inspect Turbocharger Wastegate Solenoid 2 wiring and connector for shorts to voltage or damaged insulation. Check solenoid control voltage and connector condition and repair the circuit or replace the solenoid if necessary.
P0251	Injection Pump Fuel Metering Control “A” Malfunction (Cam/Rotor/Injector)	Inspect Injection Pump Fuel Metering Control A wiring, connectors and actuator for damage or poor contact. Check the pump, fuel supply and control signals and repair or replace faulty components.
P0252	Injection Pump Fuel Metering Control “A” Range/Performance (Cam/Rotor/Injector)	Check Injection Pump Fuel Metering Control A operation and compare commanded and actual fuel delivery. Inspect the actuator, fuel supply, pump condition and wiring and repair any performance-related fault.
P0253	Injection Pump Fuel Metering Control “A” Low (Cam/Rotor/Injector)	Inspect Fuel Metering Control A circuit for shorts to ground, damaged wiring or poor connections. Verify actuator power and control voltage and repair the circuit or replace the actuator if necessary.
P0254	Injection Pump Fuel Metering Control “A” High (Cam/Rotor/Injector)	Inspect Fuel Metering Control A circuit for shorts to voltage or damaged insulation. Check actuator control voltage and connector condition and repair the circuit or replace the actuator if necessary.
P0255	Injection Pump Fuel Metering Control “A” Intermittent (Cam/Rotor/Injector)	Inspect Fuel Metering Control A wiring and connectors for loose connections, corrosion or intermittent contact. Monitor the control signal while moving the harness and repair or replace faulty components.
P0256	Injection Pump Fuel Metering Control “B” Malfunction (Cam/Rotor/Injector)	Inspect Injection Pump Fuel Metering Control B wiring, connectors and actuator for damage or poor contact. Check the pump, fuel supply and control signals and repair or replace faulty components.
P0257	Injection Pump Fuel Metering Control “B” Range/Performance (Cam/Rotor/Injector)	Check Injection Pump Fuel Metering Control B operation and compare commanded and actual fuel delivery. Inspect the actuator, fuel supply, pump condition and wiring and repair any performance-related fault.
P0258	Injection Pump Fuel Metering Control “B” Low (Cam/Rotor/Injector)	Inspect Fuel Metering Control B circuit for shorts to ground, damaged wiring or poor connections. Verify actuator power and control voltage and repair the circuit or replace the actuator if necessary.
P0259	Injection Pump Fuel Metering Control “B” High (Cam/Rotor/Injector)	Inspect Fuel Metering Control B circuit for shorts to voltage or damaged insulation. Check actuator control voltage and connector condition and repair the circuit or replace the actuator if necessary.
P0260	Injection Pump Fuel Metering Control “B” Intermittent (Cam/Rotor/Injector)	Inspect Fuel Metering Control B wiring and connectors for loose connections, corrosion or intermittent contact. Monitor the control signal while moving the harness and repair or replace faulty components.
P0261	Cylinder 1 Injector Circuit Low	Inspect Cylinder 1 injector wiring and connector for shorts to ground or poor connections. Check injector resistance, power supply and control signal and replace the injector if defective.
P0262	Cylinder 1 Injector Circuit High	Inspect Cylinder 1 injector circuit for shorts to voltage or damaged wiring. Check injector control voltage and connector condition and repair the circuit or replace the injector if necessary.
P0263	Cylinder 1 Contribution/Balance Fault	Check Cylinder 1 injector operation and compare cylinder contribution or balance data. Inspect injector condition, fuel delivery, compression and wiring and repair or replace faulty components.
P0264	Cylinder 2 Injector Circuit Low	Inspect Cylinder 2 injector wiring and connector for shorts to ground or poor connections. Check injector resistance, power supply and control signal and replace the injector if defective.
P0265	Cylinder 2 Injector Circuit High	Inspect Cylinder 2 injector circuit for shorts to voltage or damaged wiring. Check injector control voltage and connector condition and repair the circuit or replace the injector if necessary.
P0266	Cylinder 2 Contribution/Balance Fault	Check Cylinder 2 injector operation and compare cylinder contribution or balance data. Inspect injector condition, fuel delivery, compression and wiring and repair or replace faulty components.
P0267	Cylinder 3 Injector Circuit Low	Inspect Cylinder 3 injector wiring and connector for shorts to ground or poor connections. Check injector resistance, power supply and control signal and replace the injector if defective.
P0268	Cylinder 3 Injector Circuit High	Inspect Cylinder 3 injector circuit for shorts to voltage or damaged wiring. Check injector control voltage and connector condition and repair the circuit or replace the injector if necessary.
P0269	Cylinder 3 Contribution/Balance Fault	Check Cylinder 3 injector operation and compare cylinder contribution or balance data. Inspect injector condition, fuel delivery, compression and wiring and repair or replace faulty components.
P0270	Cylinder 4 Injector Circuit Low	Inspect Cylinder 4 injector wiring and connector for shorts to ground or poor connections. Check injector resistance, power supply and control signal and replace the injector if defective.
P0271	Cylinder 4 Injector Circuit High	Inspect Cylinder 4 injector circuit for shorts to voltage or damaged wiring. Check injector control voltage and connector condition and repair the circuit or replace the injector if necessary.
P0272	Cylinder 4 Contribution/Balance Fault	Check Cylinder 4 injector operation and compare cylinder contribution or balance data. Inspect injector condition, fuel delivery, compression and wiring and repair or replace faulty components.
P0273	Cylinder 5 Injector Circuit Low	Inspect Cylinder 5 injector wiring and connector for shorts to ground or poor connections. Check injector resistance, power supply and control signal and replace the injector if defective.
P0274	Cylinder 5 Injector Circuit High	Inspect Cylinder 5 injector circuit for shorts to voltage or damaged wiring. Check injector control voltage and connector condition and repair the circuit or replace the injector if necessary.
P0275	Cylinder 5 Contribution/Balance Fault	Check Cylinder 5 injector operation and compare cylinder contribution or balance data. Inspect injector condition, fuel delivery, compression and wiring and repair or replace faulty components.
P0276	Cylinder 6 Injector Circuit Low	Inspect Cylinder 6 injector wiring and connector for shorts to ground or poor connections. Check injector resistance, power supply and control signal and replace the injector if defective.
P0277	Cylinder 6 Injector Circuit High	Inspect Cylinder 6 injector circuit for shorts to voltage or damaged wiring. Check injector control voltage and connector condition and repair the circuit or replace the injector if necessary.
P0278	Cylinder 6 Contribution/Balance Fault	Check Cylinder 6 injector operation and compare cylinder contribution or balance data. Inspect injector condition, fuel delivery, compression and wiring and repair or replace faulty components.
P0279	Cylinder 7 Injector Circuit Low	Inspect Cylinder 7 injector wiring and connector for shorts to ground or poor connections. Check injector resistance, power supply and control signal and replace the injector if defective.
P0280	Cylinder 7 Injector Circuit High	Inspect Cylinder 7 injector circuit for shorts to voltage, damaged wiring or poor connections. Check injector control voltage and connector condition and repair the circuit or replace the injector if necessary.
P0281	Cylinder 7 Contribution/Balance Fault	Check Cylinder 7 injector operation and compare cylinder contribution or balance data. Inspect injector condition, fuel delivery, compression and wiring and repair or replace faulty components.
P0282	Cylinder 8 Injector Circuit Low	Inspect Cylinder 8 injector wiring and connector for shorts to ground or poor connections. Check injector resistance, power supply and control signal and replace the injector if defective.
P0283	Cylinder 8 Injector Circuit High	Inspect Cylinder 8 injector circuit for shorts to voltage or damaged wiring. Check injector control voltage and connector condition and repair the circuit or replace the injector if necessary.
P0284	Cylinder 8 Contribution/Balance Fault	Check Cylinder 8 injector operation and compare cylinder contribution or balance data. Inspect injector condition, fuel delivery, compression and wiring and repair or replace faulty components.
P0285	Cylinder 9 Injector Circuit Low	Inspect Cylinder 9 injector wiring and connector for shorts to ground or poor connections. Check injector resistance, power supply and control signal and replace the injector if defective.
P0286	Cylinder 9 Injector Circuit High	Inspect Cylinder 9 injector circuit for shorts to voltage or damaged wiring. Check injector control voltage and connector condition and repair the circuit or replace the injector if necessary.
P0287	Cylinder 9 Contribution/Balance Fault	Check Cylinder 9 injector operation and compare cylinder contribution or balance data. Inspect injector condition, fuel delivery, compression and wiring and repair or replace faulty components.
P0288	Cylinder 10 Injector Circuit Low	Inspect Cylinder 10 injector wiring and connector for shorts to ground or poor connections. Check injector resistance, power supply and control signal and replace the injector if defective.
P0289	Cylinder 10 Injector Circuit High	Inspect Cylinder 10 injector circuit for shorts to voltage or damaged wiring. Check injector control voltage and connector condition and repair the circuit or replace the injector if necessary.
P0290	Cylinder 10 Contribution/Balance Fault	Check Cylinder 10 injector operation and compare cylinder contribution or balance data. Inspect injector condition, fuel delivery, compression and wiring and repair or replace faulty components.
P0291	Cylinder 11 Injector Circuit Low	Inspect Cylinder 11 injector wiring and connector for shorts to ground or poor connections. Check injector resistance, power supply and control signal and replace the injector if defective.
P0292	Cylinder 11 Injector Circuit High	Inspect Cylinder 11 injector circuit for shorts to voltage or damaged wiring. Check injector control voltage and connector condition and repair the circuit or replace the injector if necessary.
P0293	Cylinder 11 Contribution/Balance Fault	Check Cylinder 11 injector operation and compare cylinder contribution or balance data. Inspect injector condition, fuel delivery, compression and wiring and repair or replace faulty components.
P0294	Cylinder 12 Injector Circuit Low	Inspect Cylinder 12 injector wiring and connector for shorts to ground or poor connections. Check injector resistance, power supply and control signal and replace the injector if defective.
P0295	Cylinder 12 Injector Circuit High	Inspect Cylinder 12 injector circuit for shorts to voltage or damaged wiring. Check injector control voltage and connector condition and repair the circuit or replace the injector if necessary.
P0296	Cylinder 12 Contribution/Range Fault	Check Cylinder 12 injector operation and compare cylinder contribution or balance data. Inspect injector condition, fuel delivery, compression and wiring and verify cylinder balance and range; repair or replace faulty components.
P0300	Engine Misfire Detected	Check for ignition, fuel delivery and air intake problems that could cause multiple misfires. Inspect spark plugs, ignition coils, injectors, fuel pressure, vacuum leaks and engine compression and repair the underlying cause.
P0301	Cylinder 1 Misfire Detected	Inspect Cylinder 1 spark plug, ignition coil and injector. Check fuel delivery, compression and wiring and repair or replace faulty components causing the misfire.
P0302	Cylinder 2 Misfire Detected	Inspect Cylinder 2 spark plug, ignition coil and injector. Check fuel delivery, compression and wiring and repair or replace faulty components causing the misfire.
P0303	Cylinder 3 Misfire Detected	Inspect Cylinder 3 spark plug, ignition coil and injector. Check fuel delivery, compression and wiring and repair or replace faulty components causing the misfire.
P0304	Cylinder 4 Misfire Detected	Inspect Cylinder 4 spark plug, ignition coil and injector. Check fuel delivery, compression and wiring and repair or replace faulty components causing the misfire.
P0305	Cylinder 5 Misfire Detected	Inspect Cylinder 5 spark plug, ignition coil and injector. Check fuel delivery, compression and wiring and repair or replace faulty components causing the misfire.
P0306	Cylinder 6 Misfire Detected	Inspect Cylinder 6 spark plug, ignition coil and injector. Check fuel delivery, compression and wiring and repair or replace faulty components causing the misfire.
P0307	Cylinder 7 Misfire Detected	Inspect Cylinder 7 spark plug, ignition coil and injector. Check fuel delivery, compression and wiring and repair or replace faulty components causing the misfire.
P0308	Cylinder 8 Misfire Detected	Inspect Cylinder 8 spark plug, ignition coil and injector. Check fuel delivery, compression and wiring and repair or replace faulty components causing the misfire.
P0309	Cylinder 9 Misfire Detected	Inspect Cylinder 9 spark plug, ignition coil and injector. Check fuel delivery, compression and wiring and repair or replace faulty components causing the misfire.
P0310	Cylinder 10 Misfire Detected	Inspect Cylinder 10 spark plug, ignition coil and injector. Check fuel delivery, compression and wiring and repair or replace faulty components causing the misfire.
P0311	Cylinder 11 Misfire Detected	Inspect Cylinder 11 spark plug, ignition coil and injector. Check fuel delivery, compression and wiring and repair or replace faulty components causing the misfire.
P0312	Cylinder 12 Misfire Detected	Inspect Cylinder 12 spark plug, ignition coil and injector. Check fuel delivery, compression and wiring and repair or replace faulty components causing the misfire.
P0313	Misfire Detected With Low Fuel Level	Check the fuel level and ensure sufficient fuel is available. Inspect the fuel pump, fuel pressure and injectors and check for ignition or air-intake problems if the misfire persists.
P0315	Crankshaft Position (CKP) System variation values are not stored in the PCM memory	Perform the crankshaft position variation relearn procedure according to the manufacturer’s specifications. If the procedure fails, inspect the CKP sensor, wiring, connectors and mechanical timing system.
P0318	Rough Road Sensor Circuit	Inspect the rough road sensor wiring and connector for damage, corrosion or poor contact. Check the sensor power, ground and signal circuits and replace the sensor if defective.
P0320	Ignition/Distributor Engine Speed Input Circuit Malfunction	Inspect the engine speed input sensor, wiring and connectors for damage or poor connections. Check the sensor power, ground and signal and repair or replace faulty components.
P0321	Ignition/Distributor Engine Speed Input Circuit Range/Performance	Inspect the engine speed input sensor and wiring for damage or incorrect connections. Verify the sensor signal against engine speed and check the ignition/distributor system for performance issues.
P0322	IC Module 4X Reference Circuit No Frequency	Inspect the ignition control module reference circuit wiring and connectors for damage or poor contact. Check the reference signal and sensor power supply and repair or replace faulty components.
P0323	Ignition/Distributor Engine Speed Input Circuit Intermittent	Inspect the engine speed input circuit for loose connections, corrosion or intermittent contact. Monitor the sensor signal while moving the harness and repair or replace the sensor if the fault persists.
P0324	Knock Sensor (KS) Module Performance	Inspect the knock sensor module, wiring and connectors for damage or poor connections. Check sensor operation and signal data and repair or replace faulty components if performance is incorrect.
P0325	PCM Knock Sensor Circuit	Inspect the knock sensor wiring and connector for damage, corrosion or poor contact. Check sensor resistance, signal and mounting and replace the sensor if defective.
P0326	Knock Sensor Circuit Excessive Spark Retard	Inspect the knock sensor and its wiring for damage or poor connections. Check ignition timing, engine operating conditions and sensor signal and correct the cause of excessive spark retard.
P0327	Knock Sensor Circuit Low Voltage	Inspect the knock sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor signal voltage and replace the sensor if the input remains too low.
P0328	Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)	Inspect Knock Sensor 1 wiring for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the input remains too high.
P0329	Knock Sensor 1 Circuit Intermittent (Bank 1 or Single Sensor)	Inspect Knock Sensor 1 wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal and repair the circuit or replace the sensor if necessary.
P0330	Knock Sensor (KS) Circuit Bank 2	Inspect the Bank 2 knock sensor wiring and connector for damage, corrosion or poor contact. Check sensor resistance and signal and replace the sensor if defective.
P0331	Knock Sensor 2 Circuit Range/Performance (Bank 2)	Inspect Knock Sensor 2 for damage, incorrect mounting or poor contact. Check wiring, connector and sensor signal and verify engine operating conditions.
P0332	Knock Sensor 2 Circuit Low Input (Bank 2)	Inspect Knock Sensor 2 circuit for shorts to ground, damaged wiring or poor connections. Verify sensor signal voltage and replace the sensor if the input remains too low.
P0333	Knock Sensor 2 Circuit High Input (Bank 2)	Inspect Knock Sensor 2 circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the input remains too high.
P0334	Knock Sensor 2 Circuit Intermittent (Bank 2)	Inspect Knock Sensor 2 wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal and repair the circuit or replace the sensor if the fault persists.
P0335	CKP Sensor A Circuit Performance	Inspect CKP Sensor A wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and verify crankshaft position data; replace the sensor if defective.
P0336	Crankshaft Position (CKP) Sensor A Performance	Inspect CKP Sensor A for damage, contamination or incorrect installation. Check sensor signal, wiring and connectors and verify crankshaft timing and reluctor condition.
P0337	Crankshaft Position (CKP) Sensor Circuit Low Duty Cycle	Inspect the CKP sensor circuit for shorts to ground or damaged wiring. Verify sensor power and signal voltage and replace the sensor if the signal remains too low.
P0338	Crankshaft Position (CKP) Sensor Circuit High Duty Cycle	Inspect the CKP sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the signal remains too high.
P0339	Crankshaft Position (CKP) Sensor Circuit Intermittent	Inspect CKP sensor wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal while moving the harness and replace the sensor if the fault persists.
P0340	Camshaft Position (CMP) Sensor Circuit	Inspect the CMP sensor wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and verify camshaft timing; replace the sensor if defective.
P0341	Camshaft Position (CMP) Sensor Performance	Inspect the CMP sensor for contamination, damage or incorrect installation. Check sensor signal, wiring and connectors and verify camshaft timing and mechanical condition.
P0342	Camshaft Position Sensor Circuit Low Input	Inspect the CMP sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the input remains too low.
P0343	Camshaft Position Sensor Circuit High Input	Inspect the CMP sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the input remains too high.
P0344	Camshaft Position Sensor Circuit Intermittent	Inspect CMP sensor wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal while moving the harness and repair or replace faulty components.
P0350	Ignition Coil Primary/Secondary Circuit Malfunction	Inspect the ignition coil primary and secondary circuits, wiring and connectors for damage or poor connections. Check coil resistance, power supply and control signals and replace faulty components.
P0351	Ignition Coil 1 Control Circuit	Inspect Ignition Coil 1 wiring and connector for damage, corrosion or poor contact. Check coil power, ground, control signal and resistance and replace the coil if defective.
P0352	Ignition Coil 2 Control Circuit	Inspect Ignition Coil 2 wiring and connector for damage, corrosion or poor contact. Check coil power, ground, control signal and resistance and replace the coil if defective.
P0353	Ignition Coil 3 Control Circuit	Inspect Ignition Coil 3 wiring and connector for damage, corrosion or poor contact. Check coil power, ground, control signal and resistance and replace the coil if defective.
P0354	Ignition Coil 4 Control Circuit	Inspect Ignition Coil 4 wiring and connector for damage, corrosion or poor contact. Check coil power, ground, control signal and resistance and replace the coil if defective.
P0355	Ignition Coil 5 Control Circuit	Inspect Ignition Coil 5 wiring and connector for damage, corrosion or poor contact. Check coil power, ground, control signal and resistance and replace the coil if defective.
P0356	Ignition Coil 6 Control Circuit	Inspect Ignition Coil 6 wiring and connector for damage, corrosion or poor contact. Check coil power, ground, control signal and resistance and replace the coil if defective.
P0357	Ignition Coil 7 Control Circuit	Inspect Ignition Coil 7 wiring and connector for damage, corrosion or poor contact. Check coil power, ground, control signal and resistance and replace the coil if defective.
P0358	Ignition Coil 8 Control Circuit	Inspect Ignition Coil 8 wiring and connector for damage, corrosion or poor contact. Check coil power, ground, control signal and resistance and replace the coil if defective.
P0359	Ignition Coil I Primary/Secondary Circuit Malfunction	Inspect Ignition Coil I primary and secondary circuits, wiring and connectors for damage or poor connections. Check coil power, control signal and resistance and replace faulty components.
P0360	Ignition Coil J Primary/Secondary Circuit Malfunction	Inspect Ignition Coil J primary and secondary circuits, wiring and connectors for damage or poor connections. Check coil power, control signal and resistance and replace faulty components.
P0361	Ignition Coil K Primary/Secondary Circuit Malfunction	Inspect Ignition Coil K primary and secondary circuits, wiring and connectors for damage or poor connections. Check coil power, control signal and resistance and replace faulty components.
P0362	Ignition Coil L Primary/Secondary Circuit Malfunction	Inspect Ignition Coil L primary and secondary circuits, wiring and connectors for damage or poor connections. Check coil power, control signal and resistance and replace faulty components.
P0370	Timing Reference High Resolution Signal A Malfunction	Inspect Timing Reference Signal A wiring, connectors and sensor for damage or poor contact. Check the reference signal waveform and verify the timing reference components for proper operation.
P0371	IC 24X Reference Circuit Too Many Pulses	Inspect the IC 24X reference circuit for damaged wiring, poor connections or interference. Check the reference signal waveform and verify the sensor and reluctor for excessive pulse generation.
P0372	IC 24X Reference Circuit Missing Pulses	Inspect the IC 24X reference circuit, sensor and wiring for damage or poor connections. Check the reference signal waveform and inspect the reluctor for damaged or missing teeth.
P0373	Timing Reference High Resolution Signal A Intermittent/Erratic Pulses	Inspect Timing Reference Signal A wiring and connectors for loose connections, interference or damaged wiring. Check the signal waveform and inspect the sensor and reluctor for erratic operation.
P0374	Timing Reference High Resolution Signal A No Pulses	Inspect Timing Reference Signal A wiring, connector and sensor for damage or poor contact. Check the reference signal waveform and verify sensor power and ground; replace the sensor if necessary.
P0375	Timing Reference High Resolution Signal B Malfunction	Inspect Timing Reference Signal B wiring, connectors and sensor for damage or poor contact. Check the reference signal waveform and verify the timing reference components for proper operation.
P0376	Timing Reference High Resolution Signal B Too Many Pulses	Inspect the Timing Reference Signal B circuit for damaged wiring, poor connections or signal interference. Check the reference waveform and inspect the sensor and reluctor for excessive pulses.
P0377	Timing Reference High Resolution Signal B Too Few Pulses	Inspect Timing Reference Signal B circuit, sensor and wiring for damage or poor connections. Check the reference signal waveform and inspect the reluctor for damaged or missing teeth.
P0378	Timing Reference High Resolution Signal B Intermittent/Erratic Pulses	Inspect Timing Reference Signal B wiring and connectors for loose connections, interference or damaged wiring. Check the signal waveform and inspect the sensor and reluctor for erratic operation.
P0379	Timing Reference High Resolution Signal B No Pulses	Inspect Timing Reference Signal B wiring, connector and sensor for damage or poor contact. Check the reference signal waveform and verify sensor power and ground; replace the sensor if necessary.
P0380	Glow Plug/Heater Circuit “A” Malfunction	Inspect Glow Plug/Heater Circuit A wiring, connectors and glow plugs for damage or poor connections. Check relay operation, power supply and glow plug resistance and replace faulty components.
P0381	Glow Plug/Heater Indicator Circuit Malfunction	Inspect the glow plug/heater indicator circuit, wiring and instrument cluster connections for damage or poor contact. Check the indicator control signal and repair or replace faulty components.
P0382	Exhaust Gas Recirculation Flow Malfunction	Inspect the EGR valve, vacuum or electronic control system and related passages for carbon buildup or blockage. Check EGR position feedback, wiring and control signals and clean or replace faulty components.
P0385	Crankshaft Position (CKP) Sensor B Circuit	Inspect CKP Sensor B wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal circuits and replace the sensor if defective.
P0386	Crankshaft Position (CKP) Sensor B Performance	Inspect CKP Sensor B for contamination, damage or incorrect installation. Check sensor signal, wiring and connectors and verify crankshaft timing and reluctor condition.
P0387	Crankshaft Position Sensor B Circuit Low Input	Inspect CKP Sensor B circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the input remains too low.
P0388	Crankshaft Position Sensor B Circuit High Input	Inspect CKP Sensor B circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the input remains too high.
P0389	Crankshaft Position Sensor B Circuit Intermittent	Inspect CKP Sensor B wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal while moving the harness and repair or replace the sensor if the fault persists.
P0400	Exhaust Gas Recirculation Flow Malfunction	Inspect the EGR valve, passages and control system for carbon buildup, blockage or restricted flow. Check EGR actuator operation, position feedback, vacuum lines and wiring and clean or replace faulty components.
P0401	Exhaust Gas Recirculation (EGR) Flow Insufficient	Inspect the EGR valve and passages for carbon buildup, blockage or restricted flow. Check EGR actuator operation, vacuum supply and position feedback and clean or replace faulty components.
P0402	Exhaust Gas Recirculation Flow Excessive Detected	Inspect the EGR valve for being stuck open, excessive carbon buildup or incorrect operation. Check EGR passages, actuator and position sensor and repair or replace faulty components.
P0403	Exhaust Gas Recirculation (EGR) Solenoid Control Circuit	Inspect the EGR solenoid wiring and connector for damage, corrosion or poor contact. Check power supply, ground and control signal and replace the solenoid if defective.
P0404	Exhaust Gas Recirculation (EGR) Open Position Performance	Inspect the EGR valve for sticking, carbon buildup or incorrect movement. Check the EGR position sensor, wiring and actuator operation and clean or replace faulty components.
P0405	Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low Voltage	Inspect the EGR position sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the voltage remains too low.
P0406	Exhaust Gas Recirculation Sensor A Circuit High	Inspect EGR Sensor A wiring and connector for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the signal remains too high.
P0407	Exhaust Gas Recirculation Sensor B Circuit Low	Inspect EGR Sensor B circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the signal remains too low.
P0408	Exhaust Gas Recirculation Sensor B Circuit High	Inspect EGR Sensor B circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the signal remains too high.
P0410	Secondary Air Injection (Air) System	Inspect the secondary air injection system for blocked air passages, damaged hoses or a faulty air pump. Check the pump, valves, relay and control wiring and repair or replace faulty components.
P0411	Secondary Air Injection (Air) System	Inspect the secondary air injection system for restricted flow, leaks or incorrect valve operation. Check the air pump, switching valves, hoses and control system and repair the cause of the incorrect flow.
P0412	Secondary Air Injection (AIR) Solenoid Relay Control Circuit Bank 1	Inspect the Secondary Air Injection solenoid relay control circuit for damaged wiring or poor connections. Check relay power, ground and control signal and replace the relay or solenoid if defective.
P0413	Secondary Air Injection System Switching Valve A Circuit Open	Inspect Switching Valve A wiring and connector for an open circuit, damaged wiring or poor contact. Check valve power and control signals and replace the valve if defective.
P0414	Secondary Air Injection System Switching Valve A Circuit Shorted	Inspect Switching Valve A wiring and connector for shorts, damaged insulation or poor connections. Check the valve control circuit and replace the valve if defective.
P0415	Secondary Air Injection System Switching Valve B Circuit Malfunction	Inspect Switching Valve B wiring, connector and power supply for damage or poor contact. Check valve operation and control signals and repair or replace faulty components.
P0416	Secondary Air Injection System Switching Valve B Circuit Open	Inspect Switching Valve B wiring and connector for an open circuit, damaged wiring or poor contact. Check valve power and control signals and replace the valve if defective.
P0417	Secondary Air Injection System Switching Valve B Circuit Shorted	Inspect Switching Valve B wiring and connector for shorts, damaged insulation or poor connections. Check the valve control circuit and replace the valve if defective.
P0418	Secondary Air Injection (AIR) Pump Relay Control Circuit Bank 1	Inspect the Secondary Air Injection Pump Relay control circuit for damaged wiring or poor connections. Check relay power, ground and control signal and replace the relay or pump if defective.
P0419	Secondary Air Injection (AIR) Pump Relay Control Circuit Bank 2	Inspect the Secondary Air Injection Pump Relay control circuit for damaged wiring or poor connections. Check relay power, ground and control signal and replace the relay or pump if defective.
P0420	Catalyst System Low Efficiency	Inspect the exhaust system for leaks and check oxygen sensor operation and fuel control. Verify catalytic converter efficiency and temperature and replace the catalyst only after other causes have been eliminated.
P0421	Warm Up Catalyst Efficiency Below Threshold (Bank 1)	Check for exhaust leaks and inspect the oxygen sensors and fuel mixture for proper operation. Verify catalyst temperature and warm-up performance and replace the catalyst if efficiency remains below specification.
P0422	Catalyst System Low Efficiency Bank 1	Inspect the exhaust system for leaks and check oxygen sensor operation and fuel control. Verify Bank 1 catalyst efficiency and temperature and replace the catalyst if necessary.
P0423	Heated Catalyst Efficiency Below Threshold (Bank 1)	Inspect the heated catalyst system, oxygen sensors and exhaust for leaks. Check catalyst temperature, heater operation and fuel control and repair or replace faulty components.
P0424	Heated Catalyst Temperature Below Threshold (Bank 1)	Inspect the Bank 1 heated catalyst and exhaust system for leaks or damage. Check catalyst temperature, heater operation and related sensors and repair or replace faulty components.
P0430	Catalyst System Low Efficiency Bank 2	Inspect the exhaust system for leaks and check oxygen sensor operation and fuel control. Verify Bank 2 catalytic converter efficiency and temperature and replace the catalyst only after other causes have been eliminated.
P0431	Warm Up Catalyst Efficiency Below Threshold (Bank 2)	Check for exhaust leaks and inspect the oxygen sensors and fuel mixture for proper operation. Verify Bank 2 catalyst temperature and warm-up performance and replace the catalyst if efficiency remains below specification.
P0432	Catalyst System Low Efficiency Bank 2	Inspect the exhaust system for leaks and check oxygen sensor operation and fuel control. Verify Bank 2 catalyst efficiency and temperature and replace the catalyst if necessary.
P0433	Heated Catalyst Efficiency Below Threshold (Bank 2)	Inspect the Bank 2 heated catalyst system, oxygen sensors and exhaust for leaks. Check catalyst temperature, heater operation and fuel control and repair or replace faulty components.
P0434	Heated Catalyst Temperature Below Threshold (Bank 2)	Inspect the Bank 2 heated catalyst and exhaust system for leaks or damage. Check catalyst temperature, heater operation and related sensors and repair or replace faulty components.
P0440	Evaporative Emission (EVAP) System	Inspect the EVAP system for damaged, disconnected or cracked hoses and loose connections. Check the fuel cap, purge valve, vent valve and EVAP lines for leaks and repair faulty components.
P0441	Evaporative Emission Control System Incorrect Purge Flow	Inspect the EVAP purge valve and hoses for blockage, leaks or incorrect operation. Check the purge flow, vent valve and electrical connections and repair or replace faulty components.
P0442	Evaporative Emission (EVAP) System Small Leak Detected	Inspect the EVAP system, fuel cap, hoses and connections for small leaks. Perform an EVAP leak test and repair or replace leaking components.
P0443	EVAP Purge Solenoid Valve 1 Control Circuit	Inspect the EVAP purge solenoid valve wiring and connector for damage or poor contact. Check power supply, ground and control signal and replace the solenoid if defective.
P0444	Evaporative Emission Control System Purge Control Valve Circuit Open	Inspect the EVAP purge control valve circuit for an open circuit, damaged wiring or poor connections. Check valve power and control signals and replace the valve if defective.
P0445	Evaporative Emission Control System Purge Control Valve Circuit Shorted	Inspect the EVAP purge control valve circuit for shorts, damaged insulation or poor connections. Check the valve control circuit and replace the valve if defective.
P0446	EVAP Vent Solenoid Valve Control System	Inspect the EVAP vent solenoid, wiring and connector for damage or poor contact. Check the vent valve operation and control circuit and repair or replace faulty components.
P0447	Evaporative Emission Control System Vent Control Circuit Open	Inspect the EVAP vent control circuit for an open circuit, damaged wiring or poor connections. Check vent valve power and control signals and replace the valve if defective.
P0448	Evaporative Emission Control System Vent Control Circuit Shorted	Inspect the EVAP vent control circuit for shorts, damaged insulation or poor connections. Check the vent valve control circuit and repair or replace the valve if defective.
P0449	Evaporative Emission (EVAP) Vent Solenoid Control Circuit	Inspect the EVAP vent solenoid wiring and connector for damage, corrosion or poor contact. Check power, ground and control signals and replace the solenoid if defective.
P0450	Fuel Tank Pressure Sensor Circuit	Inspect the fuel tank pressure sensor wiring and connector for damage or poor contact. Check sensor power, ground and signal circuits and replace the sensor if defective.
P0451	Evaporative Emission Control System Pressure Sensor Range/Performance	Inspect the fuel tank pressure sensor for contamination, damage or incorrect readings. Check wiring, connector and pressure signal and verify EVAP system operation for leaks or restrictions.
P0452	Fuel Tank Pressure Sensor Circuit Low Voltage	Inspect the fuel tank pressure sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the voltage remains too low.
P0453	Fuel Tank Pressure Sensor Circuit High Voltage	Inspect the fuel tank pressure sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the voltage remains too high.
P0454	Evaporative Emission Control System Pressure Sensor Intermittent	Inspect the fuel tank pressure sensor wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal and repair or replace the sensor if the fault persists.
P0455	Evaporative Emission (EVAP) System Leak Detected	Inspect the EVAP system for large leaks, disconnected hoses or a loose fuel cap. Perform an EVAP leak test and repair or replace leaking components.
P0460	Fuel Level Sensor Circuit	Inspect the fuel level sensor wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal circuits and replace the sensor if defective.
P0461	Fuel Level Sensor Performance	Inspect the fuel level sensor for incorrect readings or mechanical binding. Check sensor resistance, wiring and connector condition and replace the sensor if its performance is outside specifications.
P0462	Fuel Level Sensor Circuit Low Voltage	Inspect the fuel level sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor signal voltage and replace the sensor if the voltage remains too low.
P0463	Fuel Level Sensor Circuit High Voltage	Inspect the fuel level sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the voltage remains too high.
P0464	Fuel Level Sensor Circuit Intermittent	Inspect the fuel level sensor wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal while moving the harness and repair or replace faulty components.
P0465	Purge Flow Sensor Circuit Malfunction	Inspect the purge flow sensor wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal circuits and replace the sensor if defective.
P0466	Purge Flow Sensor Circuit Range/Performance	Inspect the purge flow sensor for contamination, damage or incorrect readings. Check wiring, connector and purge flow operation and repair or replace faulty components.
P0467	Purge Flow Sensor Circuit Low Input	Inspect the purge flow sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the input remains too low.
P0468	Purge Flow Sensor Circuit High Input	Inspect the purge flow sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the input remains too high.
P0469	Purge Flow Sensor Circuit Intermittent	Inspect the purge flow sensor wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal and repair or replace the sensor if the fault persists.
P0470	Exhaust Pressure Sensor Malfunction	Inspect the exhaust pressure sensor, wiring and connector for damage or poor contact. Check sensor power, ground and signal and inspect the exhaust system for restrictions or leaks.
P0471	Exhaust Pressure Sensor Range/Performance	Inspect the exhaust pressure sensor for contamination, damage or incorrect readings. Check wiring, connector and pressure signal and inspect the exhaust system for restrictions or leaks.
P0472	Exhaust Pressure Sensor Low	Inspect the exhaust pressure sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the signal remains too low.
P0473	Exhaust Pressure Sensor High	Inspect the exhaust pressure sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the signal remains too high.
P0474	Exhaust Pressure Sensor Intermittent	Inspect the exhaust pressure sensor wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal and repair or replace the sensor if the fault persists.
P0475	Exhaust Pressure Control Valve Malfunction	Inspect the exhaust pressure control valve, wiring and connector for damage or poor contact. Check valve operation, power supply and control signal and repair or replace faulty components.
P0476	Exhaust Pressure Control Valve Range/Performance	Inspect the exhaust pressure control valve for sticking, carbon buildup or mechanical damage. Check wiring, connector and control signals and verify valve operation against commanded position.
P0477	Exhaust Pressure Control Valve Low	Inspect the exhaust pressure control valve circuit for shorts to ground, damaged wiring or poor connections. Verify valve power and control voltage and repair the circuit or replace the valve if necessary.
P0478	Exhaust Pressure Control Valve High	Inspect the exhaust pressure control valve circuit for shorts to voltage or damaged insulation. Check valve control voltage and connector condition and repair the circuit or replace the valve if necessary.
P0479	Exhaust Pressure Control Valve Intermittent	Inspect the exhaust pressure control valve wiring and connector for loose connections, corrosion or intermittent contact. Monitor the control signal while operating the valve and repair or replace faulty components.
P0480	Cooling Fan Relay 1 Control Circuit	Inspect Cooling Fan Relay 1 wiring, fuse, relay and connectors for damage or poor contact. Check relay power, ground and control signal and replace the relay if defective.
P0481	Cooling Fan Relay 2 Control Circuit	Inspect Cooling Fan Relay 2 wiring, fuse, relay and connectors for damage or poor contact. Check relay power, ground and control signal and replace the relay if defective.
P0482	Cooling Fan 3 Control Circuit Malfunction	Inspect Cooling Fan 3 wiring, fuse, relay and connectors for damage or poor contact. Check fan power supply, ground and control signal and repair or replace faulty components.
P0483	Cooling Fan Rationality Check Malfunction	Inspect the cooling fan system for incorrect operation, damaged wiring or poor connections. Check fan relays, motor, control module and temperature sensor and verify proper fan activation.
P0484	Cooling Fan Circuit Over Current	Inspect the cooling fan circuit for short circuits, damaged wiring or a seized fan motor. Check fan current draw, relay and power/ground connections and replace faulty components.
P0485	Cooling Fan Power/Ground Circuit Malfunction	Inspect cooling fan power and ground circuits for loose connections, corrosion or damaged wiring. Check fan motor, relay and control signals and repair or replace faulty components.
P0496	Evaporative Emission (EVAP) System Flow During Non-Purge	Inspect the EVAP purge valve for being stuck open or leaking. Check the purge valve control circuit, EVAP hoses and vent system and replace the valve if purge flow occurs when it should be closed.
P0500	Vehicle Speed Sensor (VSS) Circuit	Inspect the Vehicle Speed Sensor wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and verify vehicle speed data; replace the sensor if defective.
P0501	Vehicle Speed Sensor Range/Performance	Inspect the Vehicle Speed Sensor for incorrect readings or damage. Check sensor signal, wiring, connector and related wheel speed or transmission components and repair the cause of the incorrect speed data.
P0502	Vehicle Speed Sensor (VSS) Circuit Low Input	Inspect the Vehicle Speed Sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the input remains too low.
P0503	Vehicle Speed Sensor (VSS) Circuit Intermittent	Inspect the Vehicle Speed Sensor wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal while driving or rotating the wheels and repair or replace faulty components.
P0505	Idle Control System Malfunction	Inspect the idle control system for vacuum leaks, carbon buildup or a faulty idle control valve/throttle body. Check actuator operation, wiring and throttle position and clean or replace faulty components.
P0506	Idle Speed Low	Inspect the throttle body and idle control system for carbon buildup or restricted airflow. Check for vacuum leaks, actuator operation and sensor readings and correct the cause of the low idle speed.
P0507	Idle Speed High	Inspect the throttle body and idle control system for excessive airflow or carbon buildup. Check for vacuum leaks, throttle position and idle control operation and correct the cause of the high idle speed.
P0510	Closed Throttle Position Switch Malfunction	Inspect the closed throttle position switch and wiring for damage, poor connections or incorrect adjustment. Verify switch operation and throttle position and repair or replace faulty components.
P0512	Start Switch Circuit	Inspect the start switch circuit, wiring and connectors for damage or poor contact. Check switch operation, power supply and starter control signal and repair or replace faulty components.
P0520	Engine Oil Pressure Sensor/Switch Circuit Malfunction	Inspect the engine oil pressure sensor/switch wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P0521	Engine Oil Pressure Sensor/Switch Circuit Range/Performance	Check engine oil level and condition and verify actual oil pressure with a mechanical gauge. Inspect the oil pressure sensor, wiring and connector and repair the cause of incorrect pressure readings.
P0522	Engine Oil Pressure Sensor/Switch Circuit Low Voltage	Inspect the engine oil pressure sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor signal voltage and replace the sensor if the voltage remains too low.
P0523	Engine Oil Pressure Sensor/Switch Circuit High Voltage	Inspect the engine oil pressure sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the voltage remains too high.
P0526	Cooling Fan Speed Sensor Circuit	Inspect the cooling fan speed sensor wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and speed signal and replace the sensor if defective.
P0530	A/C Refrigerant Pressure Sensor Circuit Malfunction	Inspect the A/C refrigerant pressure sensor wiring and connector for damage or poor contact. Check sensor power, ground and signal circuits and replace the sensor if defective.
P0531	A/C Refrigerant Pressure Sensor Circuit Range/Performance	Check the A/C refrigerant pressure and inspect the pressure sensor for incorrect readings or damage. Verify sensor wiring, connector and system pressure and repair the cause of the abnormal reading.
P0532	Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit Low Voltage	Inspect the A/C refrigerant pressure sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the voltage remains too low.
P0533	Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit High Voltage	Inspect the A/C refrigerant pressure sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the voltage remains too high.
P0534	Air Conditioner Refrigerant Charge Loss	Check the A/C system for low refrigerant level or leaks and inspect hoses, connections and components. Perform a leak test and recharge or repair the system according to manufacturer specifications.
P0550	Power Steering Pressure (PSP) Switch Circuit	Inspect the Power Steering Pressure (PSP) switch wiring and connector for damage, corrosion or poor contact. Check switch power, ground and signal circuits and replace the switch if defective.
P0551	Power Steering Pressure Sensor Circuit Range/Performance	Inspect the power steering pressure sensor for damage or incorrect readings. Check sensor wiring, connector and hydraulic pressure and repair or replace faulty components.
P0552	Power Steering Pressure Sensor Circuit Low Input	Inspect the power steering pressure sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the input remains too low.
P0553	Power Steering Pressure Sensor Circuit High Input	Inspect the power steering pressure sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the input remains too high.
P0554	Power Steering Pressure Sensor Circuit Intermittent	Inspect the power steering pressure sensor wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal and repair or replace the sensor if the fault persists.
P0560	System Voltage	Check battery voltage, charging system output and main power and ground connections. Inspect fuses, wiring and alternator operation and repair the cause of abnormal system voltage.
P0561	System Voltage Unstable	Check battery and alternator voltage for fluctuations. Inspect battery terminals, grounds, charging system and voltage regulation and repair any loose or faulty connections.
P0562	System Voltage Low (TCM)	Check battery voltage and alternator output and inspect TCM power and ground circuits. Check fuses, wiring and connectors and repair the cause of low system voltage.
P0563	System Voltage High (TCM)	Check alternator output and battery voltage and inspect the TCM power supply and ground circuits. Verify voltage regulation and repair the cause of excessive system voltage.
P0564	Cruise Control Multi-Function Switch Circuit (PCM)	Inspect the cruise control multifunction switch wiring and connector for damage or poor contact. Check switch inputs and related circuits and replace the switch if defective.
P0565	Cruise Control On Signal Malfunction	Inspect the cruise control ON switch, wiring and connector for damage or poor contact. Check the switch signal and control module input and repair or replace faulty components.
P0566	Cruise Control Off Signal Malfunction	Inspect the cruise control OFF switch, wiring and connector for damage or poor contact. Check the switch signal and control module input and repair or replace faulty components.
P0567	Cruise Control Resume Signal Malfunction	Inspect the cruise control RESUME switch, wiring and connector for damage or poor contact. Check the switch signal and control module input and repair or replace faulty components.
P0568	Cruise Control Set Signal Malfunction	Inspect the cruise control SET switch, wiring and connector for damage or poor contact. Check the switch signal and control module input and repair or replace faulty components.
P0569	Cruise Control Coast Signal Malfunction	Inspect the cruise control COAST switch, wiring and connector for damage or poor contact. Check the switch signal and control module input and repair or replace faulty components.
P0570	Cruise Control Accel Signal Malfunction	Inspect the cruise control ACCEL switch, wiring and connector for damage or poor contact. Check the switch signal and control module input and repair or replace faulty components.
P0571	Cruise Control Brake Switch Circuit	Inspect the brake switch wiring, connector and adjustment for damage or poor contact. Verify brake switch operation and signal to the control module and replace or adjust the switch if necessary.
P0573	Cruise Control/Brake Switch A Circuit High	Inspect the Cruise Control/Brake Switch A circuit for shorts to voltage or damaged wiring. Check switch signal voltage and connector condition and repair the circuit or replace the switch if necessary.
P0574	Vehicle Speed Too High – above 110 mph – Cruise Control Disabled	Check vehicle speed sensor data and cruise control operation. Inspect the speed signal and cruise control system and verify that the vehicle is operating within the specified speed range.
P0575	Cruise Control Related Malfunction	Inspect the cruise control system wiring, switches and control module for damage or communication faults. Check switch inputs and related circuits and repair or replace faulty components.
P0576	Cruise Control Related Malfunction	Inspect the cruise control control circuit, wiring and connectors for damage or poor contact. Check switch signals and control module inputs and repair or replace faulty components.
P0576	Cruise Control Related Malfunction	Inspect the cruise control control circuit, wiring and connectors for damage or poor contact. Check switch signals and control module inputs and repair or replace faulty components.
P0578	Cruise Control Related Malfunction	Inspect the cruise control switch circuit and wiring for damage, shorts or poor connections. Verify switch operation and control module inputs and repair or replace faulty components.
P0579	Cruise Control Related Malfunction	Inspect the cruise control circuit wiring and connectors for intermittent connections or damaged wiring. Monitor switch signals and repair or replace faulty components if the fault persists.
P0580	Cruise Control Related Malfunction	Inspect the cruise control switch input circuit for shorts to ground, damaged wiring or poor connections. Verify switch signal voltage and repair the circuit or replace the switch if necessary.
P0600	Serial Communication Link Malfunction	Inspect communication network wiring and connectors for damage, corrosion or poor contact. Check module power and grounds and verify CAN/serial communication between control modules.
P0601	Control Module Read Only memory (ROM)	Check the control module power supply and grounds and inspect for software or internal memory faults. Verify module programming and replace or reprogram the control module if the ROM fault persists.
P0602	Control Module not Programmed	Verify that the control module is correctly programmed for the vehicle. Check module power, ground and communication circuits and perform programming or replacement according to manufacturer specifications.
P0603	Control Module Long Term memory Reset	Check control module power and ground circuits, battery condition and voltage stability. Inspect for loose connections or power interruptions and reprogram or replace the module if the memory reset fault persists.
P0604	Control Module Random Access memory (RAM)	Check control module power supply and grounds and inspect for voltage fluctuations or internal memory faults. Verify module operation and reprogram or replace the control module if the RAM fault persists.
P0605	Control Module Programming Read Only memory (ROM)	Check the control module power supply and grounds and inspect for software or internal ROM faults. Verify module programming and reprogram or replace the control module if the fault persists.
P0606	Control Module Internal Performance	Check the control module power, ground and communication circuits for faults. Verify software and internal module operation and reprogram or replace the control module if the internal fault persists.
P0607	ECU Malfunction	Check the ECU power supply, grounds and communication circuits for abnormal voltage or poor connections. Verify module operation and programming and reprogram or replace the ECU if necessary.
P0608	Control Module VSS Output “A” Malfunction	Inspect the Control Module VSS Output A wiring and connector for damage or poor contact. Check the output signal and related speed sensor data and repair the circuit or replace the module if defective.
P0609	Control Module VSS Output “B” Malfunction	Inspect the Control Module VSS Output B wiring and connector for damage or poor contact. Check the output signal and related speed sensor data and repair the circuit or replace the module if defective.
P0610	Control Module Vehicle Options Incorrect	Verify that the control module is correctly programmed with the vehicle’s configuration and option data. Check module communication, power and ground circuits and reprogram or replace the module if necessary.
P0615	Starter Relay Control Circuit	Inspect the starter relay, wiring and connectors for damage, corrosion or poor contact. Check relay power, ground and control signal and replace the relay if defective.
P0616	Starter Relay Control Circuit Low Voltage	Inspect the starter relay control circuit for shorts to ground, damaged wiring or poor connections. Verify relay control voltage and power supply and repair the circuit or replace the relay if necessary.
P0617	Starter Relay Control Circuit High Voltage	Inspect the starter relay control circuit for shorts to voltage or damaged insulation. Check relay control voltage and connector condition and repair the circuit or replace the relay if necessary.
P0620	Generator Control Circuit Malfunction	Inspect the generator control circuit, wiring and connectors for damage or poor contact. Check alternator operation, control signals and charging voltage and repair or replace faulty components.
P0621	Generator L-Terminal Circuit	Inspect the generator L-terminal wiring and connector for damage, corrosion or poor contact. Check the L-terminal signal and alternator control circuit and repair or replace faulty components.
P0622	Generator F-Terminal Circuit	Inspect the generator F-terminal wiring and connector for damage or poor contact. Check the field control signal, alternator operation and related wiring and repair or replace faulty components.
P0625	Generator F-Terminal Circuit Low Voltage	Inspect the generator F-terminal circuit for shorts to ground, damaged wiring or poor connections. Verify field control voltage and repair the circuit or replace faulty components if the voltage remains too low.
P0626	Generator F-Terminal Circuit High Voltage	Inspect the generator F-terminal circuit for shorts to voltage or damaged insulation. Check field control voltage and connector condition and repair the circuit or replace faulty components if the voltage remains too high.
P0628	Fuel Pump Relay Control Circuit Low Voltage	Inspect the fuel pump relay control circuit for shorts to ground, damaged wiring or poor connections. Check relay control voltage and fuel pump power supply and repair or replace faulty components.
P0629	Fuel Pump Relay Control Circuit High Voltage	Inspect the fuel pump relay control circuit for shorts to voltage or damaged insulation. Check relay control voltage and connector condition and repair or replace faulty components.
P0638	Throttle Actuator Control (TAC) Command Performance	Inspect the throttle actuator and throttle body for carbon buildup, sticking or mechanical damage. Check actuator wiring, power supply and position feedback and clean or replace faulty components.
P0641	PCM voltage out of tolerance condition on the 5-volt reference circuit	Inspect the 5-volt reference circuit for shorts to ground, voltage or another sensor circuit. Check the reference voltage, wiring and connected sensors and repair the circuit or replace the faulty component.
P0645	Air Conditioning (A/C) Clutch Relay Control Circuit	Inspect the A/C clutch relay control circuit, wiring and connectors for damage or poor contact. Check relay power, ground and control signal and replace the relay if defective.
P0646	Air Conditioning (A/C) Clutch Relay Control Circuit	Inspect the A/C clutch relay control circuit for shorts to ground, damaged wiring or poor connections. Verify relay control voltage and repair the circuit or replace the relay if necessary.
P0647	Air Conditioning (A/C) Clutch Relay Control Circuit	Inspect the A/C clutch relay control circuit for shorts to voltage or damaged insulation. Check relay control voltage and connector condition and repair the circuit or replace the relay if necessary.
P0650	Malfunction Indicator Lamp (MIL) Control Circuit	Inspect the MIL control circuit, wiring and instrument cluster connections for damage or poor contact. Check MIL power and control signal and repair the circuit or replace faulty components.
P0651	PCM voltage out of tolerance condition on the 5-volt reference circuit	Inspect the 5-volt reference circuit for shorts to ground, voltage or another sensor circuit. Check reference voltage, wiring and connected sensors and repair the circuit or replace the faulty component.
P0654	Engine RPM Output Circuit Malfunction	Inspect the engine RPM output circuit wiring and connector for damage or poor contact. Check the RPM output signal and related control module connections and repair the circuit or replace faulty components.
P0655	Engine Hot Lamp Output Control Circuit Malfucntion	Inspect the engine hot lamp output circuit, wiring and instrument cluster connections for damage or poor contact. Check the control signal and repair the circuit or replace faulty components.
P0656	Fuel Level Output Circuit Malfunction	Inspect the fuel level output circuit wiring and connector for damage, corrosion or poor contact. Check the output signal and fuel level system and repair or replace faulty components.
P0660	Intake Manifold Tuning (IMT) Valve Solenoid Control Circuit	Inspect the Intake Manifold Tuning (IMT) valve solenoid wiring and connector for damage or poor contact. Check solenoid power, ground and control signal and replace the solenoid if defective.
P0661	Intake Manifold Tuning (IMT) Valve Solenoid Control Circuit Low Voltage	Inspect the IMT valve solenoid circuit for shorts to ground, damaged wiring or poor connections. Verify solenoid power and control voltage and repair the circuit or replace the solenoid if necessary.
P0662	Intake Manifold Tuning (IMT) Valve Solenoid Control Circuit High Voltage	Inspect the IMT valve solenoid circuit for shorts to voltage or damaged insulation. Check solenoid control voltage and connector condition and repair the circuit or replace the solenoid if necessary.
P0685	Engine Controls Ignition Relay Control Circuit (PCM)	Inspect the Engine Controls Ignition Relay, wiring and connectors for damage, corrosion or poor contact. Check relay power, ignition feed and control signal and replace the relay if defective.
P0691	Cooling Fan Relay Control Circuit Low Voltage	Inspect the cooling fan relay control circuit for shorts to ground, damaged wiring or poor connections. Verify relay control voltage and repair the circuit or replace the relay if necessary.
P0693	Cooling Fan Relay Control Circuit Low Voltage	Inspect the cooling fan relay control circuit for shorts to ground, damaged wiring or poor connections. Verify relay control voltage and repair the circuit or replace the relay if necessary.
P0692	Cooling Fan Relay Control Circuit High Voltage	Inspect the cooling fan relay control circuit for shorts to voltage or damaged insulation. Check relay control voltage and connector condition and repair the circuit or replace the relay if necessary.
P0694	Cooling Fan Relay Control Circuit High Voltage	Inspect the cooling fan relay control circuit for shorts to voltage or damaged insulation. Check relay control voltage and connector condition and repair the circuit or replace the relay if necessary.
P0700	Transmission Control System Malfunction	Scan the transmission control module for additional fault codes. Check TCM power, ground and communication circuits and diagnose the underlying transmission fault indicated by the stored codes.
P0701	Transmission Control System Range/Performance	Check transmission fluid level and condition and inspect the transmission for mechanical or hydraulic problems. Scan the TCM for additional codes and verify transmission sensor and actuator operation.
P0702	Transmission Control System Electrical	Inspect the transmission control system wiring, connectors, power and grounds for damage or poor connections. Check transmission sensors, solenoids and TCM communication and repair faulty components.
P0703	Brake Switch Circuit Malfunction	Inspect the brake switch wiring and connector for damage, corrosion or poor contact. Verify switch adjustment, power supply and signal to the control module and replace the switch if defective.
P0704	Clutch Switch Input Circuit Malfunction	Inspect the clutch switch wiring and connector for damage or poor contact. Check switch adjustment, power supply and input signal and replace or adjust the switch if necessary.
P0705	Trans Range Switch Circuit	Inspect the transmission range switch/sensor wiring and connector for damage or poor contact. Check selector position signals and verify correct mechanical adjustment and sensor operation.
P0706	Trans Range Switch Performance	Inspect the transmission range sensor for incorrect readings, damage or misalignment. Check wiring, connector and selector mechanism and verify that all gear positions are correctly detected.
P0707	Transmission Range Sensor Circuit Low Input	Inspect the transmission range sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the input remains too low.
P0708	Transmission Range Sensor Circuit High Input	Inspect the transmission range sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the input remains too high.
P0709	Transmission Range Sensor Circuit Intermittent	Inspect the transmission range sensor wiring and connector for loose connections, corrosion or intermittent contact. Monitor selector position signals and repair or replace faulty components.
P0710	Transmission Fluid Temperature Sensor Circuit Malfunction	Inspect the transmission fluid temperature sensor wiring and connector for damage or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P0711	TFT Sensor Circuit Range/Performance	Check the transmission fluid temperature sensor for incorrect readings or damage. Inspect wiring and connector and compare temperature data with actual transmission conditions.
P0712	Transmission Fluid Temperature (TFT) Sensor Circuit Low Input	Inspect the TFT sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor signal voltage and replace the sensor if the input remains too low.
P0713	Transmission Fluid Temperature (TFT) Sensor Circuit High Input	Inspect the TFT sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the input remains too high.
P0714	Transmission Fluid Temperature Sensor Circuit Intermittent	Inspect the transmission fluid temperature sensor wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal and repair or replace the sensor if the fault persists.
P0715	Input/Turbine Speed Sensor Circuit Malfunction	Inspect the input/turbine speed sensor wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P0716	Input Speed Sensor Circuit Intermittent	Inspect the input speed sensor wiring and connector for loose connections, corrosion or intermittent contact. Monitor the speed signal and repair or replace the sensor if the fault persists.
P0717	Input Speed Sensor Circuit Low Input	Inspect the input speed sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the input remains too low.
P0718	Input/Turbine Speed Sensor Circuit Intermittent	Inspect the input/turbine speed sensor wiring and connector for intermittent connections or damaged wiring. Monitor the sensor signal and repair or replace the sensor if the fault persists.
P0719	Brake Switch Circuit Low Input	Inspect the brake switch circuit for shorts to ground, damaged wiring or poor connections. Verify switch adjustment, power supply and signal voltage and replace the switch if necessary.
P0720	Output Speed Sensor Circuit Malfunction	Inspect the transmission output speed sensor wiring and connector for damage or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P0721	Output Speed Sensor Range/Performance	Inspect the output speed sensor for incorrect readings or damage. Check wiring, connector and transmission operation and compare output speed data with actual vehicle speed.
P0722	Output Speed Sensor Circuit Low Input	Inspect the output speed sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the input remains too low.
P0723	Output Speed Sensor Intermittent	Inspect the output speed sensor wiring and connector for loose connections, corrosion or intermittent contact. Monitor the sensor signal and repair or replace the sensor if the fault persists.
P0724	Brake Switch Circuit High Input	Inspect the brake switch circuit for shorts to voltage or damaged insulation. Check switch signal voltage and connector condition and repair the circuit or replace the switch if necessary.
P0725	Engine Speed Input Circuit	Inspect the engine speed input circuit, CKP sensor and related wiring for damage or poor connections. Verify engine speed signal and check communication between the engine and transmission control modules.
P0726	Engine Speed Input Circuit Range/Performance	Inspect the engine speed input circuit, CKP sensor and related wiring for damage or poor connections. Compare engine speed data with actual RPM and repair or replace faulty components.
P0727	Engine Speed Circuit No Signal	Inspect the engine speed sensor, wiring and connectors for damage, corrosion or poor contact. Check sensor power, ground and signal and verify that a valid RPM signal reaches the control module.
P0728	Engine Speed Input Circuit Intermittent	Inspect the engine speed input circuit for loose connections, corrosion or intermittent wiring faults. Monitor the RPM signal while moving the harness and repair or replace faulty components.
P0730	Incorrect Gear Ratio	Check transmission fluid level and condition and scan the TCM for additional fault codes. Inspect input/output speed sensors, shift solenoids and transmission operation and correct the cause of the incorrect gear ratio.
P0731	Incorrect 1st Gear Ratio	Check transmission fluid level and condition and inspect the input/output speed sensors. Test the shift solenoids and hydraulic system and verify the actual 1st gear ratio; repair the transmission if necessary.
P0732	Incorrect 2nd Gear Ratio	Check transmission fluid level and condition and inspect the input/output speed sensors. Test the shift solenoids and hydraulic system and verify the actual 2nd gear ratio; repair the transmission if necessary.
P0733	Incorrect 3rd Gear Ratio	Check transmission fluid level and condition and inspect the input/output speed sensors. Test the shift solenoids and hydraulic system and verify the actual 3rd gear ratio; repair the transmission if necessary.
P0734	Incorrect 4th Gear Ratio	Check transmission fluid level and condition and inspect the input/output speed sensors. Test the shift solenoids and hydraulic system and verify the actual 4th gear ratio; repair the transmission if necessary.
P0735	Gear 5 Incorrect ratio	Check transmission fluid level and condition and inspect the input/output speed sensors. Test the shift solenoids and hydraulic system and verify the actual 5th gear ratio; repair the transmission if necessary.
P0736	Reverse Incorrect Gear Ratio	Check transmission fluid level and condition and inspect the input/output speed sensors. Test the shift solenoids and hydraulic system and verify reverse gear engagement and ratio; repair the transmission if necessary.
P0740	TCC Enable Solenoid Circuit Electrical	Inspect the TCC enable solenoid wiring and connector for damage, corrosion or poor contact. Check solenoid resistance, power supply and control signal and replace the solenoid if defective.
P0741	TCC System Stuck Off	Check transmission fluid level and condition and inspect the torque converter clutch solenoid and hydraulic circuit. Verify TCC slip speed and control pressure and repair or replace faulty components.
P0742	TCC System Stuck On	Inspect the TCC solenoid and hydraulic circuit for sticking or incorrect operation. Check transmission fluid condition, control pressure and TCC slip and repair or replace faulty components.
P0743	TCC Enable Solenoid Circuit Electrical	Inspect the TCC enable solenoid circuit for damaged wiring, poor connections or shorts. Check solenoid resistance, power supply and control signal and repair or replace the solenoid if necessary.
P0744	Torque Converter Clutch Circuit Intermittent	Inspect the TCC solenoid wiring and connector for loose connections, corrosion or intermittent contact. Monitor the TCC control signal and transmission slip data and repair or replace faulty components.
P0745	Pressure Control Solenoid Malfunction	Inspect the pressure control solenoid wiring and connector for damage or poor contact. Check solenoid resistance, power supply and control signal and replace the solenoid if defective.
P0746	Pressure Control Solenoid Performance or Stuck Off	Inspect the pressure control solenoid for sticking, contamination or restricted hydraulic passages. Check transmission fluid pressure, solenoid operation and wiring and repair or replace faulty components.
P0747	Pressure Control Solenoid Stuck On	Inspect the pressure control solenoid and hydraulic circuit for sticking or blockage. Check solenoid control signal, transmission fluid condition and pressure and repair or replace faulty components.
P0748	Pressure Control Solenoid Circuit Electrical	Inspect the pressure control solenoid circuit for damaged wiring, poor connections or electrical faults. Check solenoid resistance, power supply and control signal and repair or replace the solenoid if necessary.
P0749	Pressure Control Solenoid Intermittent	Inspect the pressure control solenoid wiring and connector for loose connections, corrosion or intermittent contact. Monitor the solenoid control signal and repair or replace faulty components.
P0750	Shift Solenoid A Malfunction	Inspect Shift Solenoid A wiring and connector for damage, corrosion or poor contact. Check solenoid resistance, power supply and control signal and replace the solenoid if defective.
P0751	1-2 Shift Solenoid Valve Performance – No First or Fourth Gear	Inspect the 1-2 shift solenoid for sticking, contamination or restricted hydraulic passages. Check solenoid operation, transmission fluid condition and hydraulic pressure and repair or replace faulty components.
P0752	1-2 Shift Solenoid Valve Performance – No Second or Third Gear	Inspect the 1-2 shift solenoid for sticking, contamination or restricted hydraulic passages. Check solenoid operation, transmission fluid condition and hydraulic pressure and repair or replace faulty components.
P0753	1-2 Shift Solenoid Circuit Electrical	Inspect the 1-2 shift solenoid circuit for damaged wiring, poor connections or electrical faults. Check solenoid resistance, power supply and control signal and repair or replace the solenoid if necessary.
P0754	Shift Solenoid A Intermittent	Inspect Shift Solenoid A wiring and connector for loose connections, corrosion or intermittent contact. Monitor the solenoid control signal and repair or replace faulty components.
P0755	Shift Solenoid B Malfunction	Inspect Shift Solenoid B wiring and connector for damage, corrosion or poor contact. Check solenoid resistance, power supply and control signal and replace the solenoid if defective.
P0756	2-3 Shift Solenoid Valve Performance – No First or Second Gear	Inspect the 2-3 shift solenoid for sticking, contamination or restricted hydraulic passages. Check solenoid operation, transmission fluid condition and hydraulic pressure and repair or replace faulty components.
P0757	2-3 Shift Solenoid Valve Performance – No Third or Fourth Gear	Inspect the 2-3 shift solenoid for sticking, contamination or restricted hydraulic passages. Check solenoid operation, transmission fluid condition and hydraulic pressure and repair or replace faulty components.
P0758	2-3 Shift Solenoid Circuit Electrical	Inspect the 2-3 shift solenoid circuit for damaged wiring, poor connections or electrical faults. Check solenoid resistance, power supply and control signal and repair or replace the solenoid if necessary.
P0759	Shift Solenoid B Intermittent	Inspect Shift Solenoid B wiring and connector for loose connections, corrosion or intermittent contact. Monitor the solenoid control signal and repair or replace faulty components.
P0760	Shift Solenoid C Malfunction	Inspect Shift Solenoid C wiring and connector for damage, corrosion or poor contact. Check solenoid resistance, power supply and control signal and replace the solenoid if defective.
P0761	Shift Solenoid C Performance or Stuck Off	Inspect Shift Solenoid C for sticking, contamination or restricted hydraulic passages. Check solenoid operation, transmission fluid condition and hydraulic pressure and repair or replace faulty components.
P0762	Shift Solenoid C Stuck On	Inspect Shift Solenoid C and its hydraulic circuit for sticking or incorrect operation. Check transmission fluid condition, solenoid control signal and hydraulic pressure and repair or replace faulty components.
P0763	Shift Solenoid C Electrical	Inspect Shift Solenoid C electrical circuit for damaged wiring, poor connections or shorts. Check solenoid resistance, power supply and control signal and repair or replace the solenoid if necessary.
P0764	Shift Solenoid C Intermittent	Inspect Shift Solenoid C wiring and connector for loose connections, corrosion or intermittent contact. Monitor the solenoid control signal and repair or replace faulty components.
P0765	Shift Solenoid D Malfunction	Inspect Shift Solenoid D wiring and connector for damage, corrosion or poor contact. Check solenoid resistance, power supply and control signal and replace the solenoid if defective.
P0766	Shift Solenoid D Performance or Stuck Off	Inspect Shift Solenoid D for sticking, contamination or restricted hydraulic passages. Check solenoid operation, transmission fluid condition and hydraulic pressure and repair or replace faulty components.
P0767	Shift Solenoid D Stuck On	Inspect Shift Solenoid D and its hydraulic circuit for sticking or incorrect operation. Check transmission fluid condition, solenoid control signal and hydraulic pressure and repair or replace faulty components.
P0768	Shift Solenoid D Electrical	Inspect Shift Solenoid D electrical circuit for damaged wiring, poor connections or shorts. Check solenoid resistance, power supply and control signal and repair or replace the solenoid if necessary.
P0769	Shift Solenoid D Intermittent	Inspect Shift Solenoid D wiring and connector for loose connections, corrosion or intermittent contact. Monitor the solenoid control signal and repair or replace faulty components.
P0770	Shift Solenoid E Malfunction	Inspect Shift Solenoid E wiring and connector for damage, corrosion or poor contact. Check solenoid resistance, power supply and control signal and replace the solenoid if defective.
P0771	Shift Solenoid E Performance or Stuck Off	Inspect Shift Solenoid E for sticking, contamination or restricted hydraulic passages. Check solenoid operation, transmission fluid condition and hydraulic pressure and repair or replace faulty components.
P0772	Shift Solenoid E Stuck On	Inspect Shift Solenoid E and its hydraulic circuit for sticking or incorrect operation. Check transmission fluid condition, solenoid control signal and hydraulic pressure and repair or replace faulty components.
P0773	Shift Solenoid E Electrical	Inspect Shift Solenoid E electrical circuit for damaged wiring, poor connections or shorts. Check solenoid resistance, power supply and control signal and repair or replace the solenoid if necessary.
P0774	Shift Solenoid E Intermittent	Inspect Shift Solenoid E wiring and connector for loose connections, corrosion or intermittent contact. Monitor the solenoid control signal and repair or replace faulty components.
P0780	Shift Malfunction	Check transmission fluid level and condition and scan the TCM for additional fault codes. Inspect shift solenoids, input/output speed sensors and hydraulic pressure and diagnose the cause of the shift malfunction.
P0781	1-2 Shift Malfunction	Check transmission fluid level and condition and inspect the 1-2 shift solenoid and hydraulic circuit. Verify input/output speed signals and transmission pressure and repair faulty components.
P0782	2-3 Shift Malfunction	Check transmission fluid level and condition and inspect the 2-3 shift solenoid and hydraulic circuit. Verify input/output speed signals and transmission pressure and repair faulty components.
P0783	3-4 Shift Malfunction	Check transmission fluid level and condition and inspect the 3-4 shift solenoid and hydraulic circuit. Verify input/output speed signals and transmission pressure and repair faulty components.
P0784	4-5 Shift Malfunction	Check transmission fluid level and condition and inspect the 4-5 shift solenoid and hydraulic circuit. Verify input/output speed signals and transmission pressure and repair faulty components.
P0785	3-2 Shift Solenoid Circuit Electrical	Inspect the 3-2 shift solenoid circuit for damaged wiring, poor connections or electrical faults. Check solenoid resistance, power supply and control signal and repair or replace the solenoid if necessary.
P0786	Shift/Timing Solenoid Range/Performance	Inspect the shift/timing solenoid for sticking, contamination or restricted hydraulic passages. Check wiring, solenoid operation and transmission fluid pressure and repair or replace faulty components.
P0787	Shift/Timing Solenoid Low	Inspect the shift/timing solenoid circuit for shorts to ground, damaged wiring or poor connections. Verify solenoid control voltage and replace the solenoid if the signal remains too low.
P0788	Shift/Timing Solenoid High	Inspect the shift/timing solenoid circuit for shorts to voltage or damaged insulation. Check solenoid control voltage and connector condition and replace the solenoid if the signal remains too high.
P0789	Shift/Timing Solenoid Intermittent	Inspect the shift/timing solenoid wiring and connector for loose connections, corrosion or intermittent contact. Monitor the control signal and repair or replace faulty components.
P0790	Normal/Performance Switch Circuit Malfunction	Inspect the Normal/Performance switch wiring and connector for damage or poor contact. Check switch operation, power supply and signal circuit and replace the switch if defective.
P0801	Reverse Inhibit Control Circuit Malfunction	Inspect the reverse inhibit control circuit, wiring and connectors for damage or poor contact. Check the control solenoid, power supply and signal and repair or replace faulty components.
P0803	1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction	Inspect the 1-4 upshift/skip-shift solenoid wiring and connector for damage or poor contact. Check solenoid resistance, power supply and control signal and replace the solenoid if defective.
P0804	1-4 Upshift (Skip Shift) Lamp Control Circuit Malfunction	Inspect the 1-4 upshift/skip-shift lamp control circuit and instrument cluster connections for damage or poor contact. Check the lamp control signal and repair or replace faulty components.
P0850	Park/Neutral Position (PNP) Switch Circuit	Inspect the Park/Neutral Position (PNP) switch wiring and connector for damage, corrosion or poor contact. Verify switch adjustment and gear-position signals and repair or replace the switch if defective.
P0856	Powertrain Indicated Traction Control Malfunction	Inspect the traction control system for stored ABS/ESC fault codes and check communication between the powertrain and brake control modules. Inspect wheel speed sensors, wiring and connectors and diagnose any related faults.
P0894	Transmission Component Slipping	Check transmission fluid level and condition and inspect for signs of clutch or internal transmission slip. Verify input/output speed sensor signals, line pressure and clutch operation and repair or overhaul faulty components as necessary.
P0897	PCM detects a calculated transmission fluid life of 10 percent or less	Check the transmission fluid level, condition and service history. If the calculated fluid life is at or below the specified limit, replace the transmission fluid and filter according to the manufacturer’s service procedure and reset the fluid life monitor.
P0962	Line Pressure Control (PC) Solenoid Control Circuit Low Voltage (TCM)	Inspect the line pressure control solenoid circuit for shorts to ground, damaged wiring or poor connections. Verify solenoid resistance, power supply and control voltage and repair or replace the solenoid if necessary.
P0963	Line Pressure Control (PC) Solenoid Control Circuit High Voltage (TCM)	Inspect the line pressure control solenoid circuit for shorts to voltage or damaged insulation. Check solenoid control voltage, wiring and connector condition and repair or replace the solenoid if necessary.
P0966	Clutch Pressure Control (PC) Solenoid Control Circuit Low Voltage (TCM)	Inspect the clutch pressure control solenoid circuit for shorts to ground, damaged wiring or poor connections. Verify solenoid resistance, power supply and control voltage and repair or replace the solenoid if necessary.
P0967	Clutch Pressure Control (PC) Solenoid Control Circuit High Voltage (TCM)	Inspect the clutch pressure control solenoid circuit for shorts to voltage or damaged insulation. Check solenoid control voltage, wiring and connector condition and repair or replace the solenoid if necessary.
P0970	Shift Pressure Control (PC) Solenoid Control Circuit Low Voltage (TCM)	Inspect the shift pressure control solenoid circuit for shorts to ground, damaged wiring or poor connections. Check solenoid resistance, power supply and control signal and repair or replace the solenoid if necessary.
P0971	Shift Pressure Control (PC) Solenoid Control High Voltage (TCM)	Inspect the shift pressure control solenoid circuit for shorts to voltage or damaged insulation. Check solenoid control voltage, wiring and connector condition and repair or replace the solenoid if necessary.
P0973	PCM detects an open or short to ground in the 1-2 SS valve circuit	Inspect the 1-2 shift solenoid valve circuit for an open circuit, short to ground or damaged wiring. Check solenoid resistance, power supply and control signal and replace the solenoid if defective.
P0974	PCM detects a continuous short to voltage in the 1-2 SS valve circuit	Inspect the 1-2 shift solenoid valve circuit for a continuous short to voltage or damaged insulation. Check the control signal and connector condition and repair or replace the solenoid if necessary.
P0976	PCM detects a continuous open or short to ground in the 2-3 SS valve circuit	Inspect the 2-3 shift solenoid valve circuit for an open circuit, short to ground or poor connections. Check solenoid resistance, power supply and control signal and repair or replace the solenoid if defective.
P0977	PCM detects a continuous short to voltage in the 2-3 SS valve circuit	Inspect the 2-3 shift solenoid valve circuit for a continuous short to voltage or damaged wiring. Check the control signal and connector condition and repair or replace the solenoid if necessary.
P0979	Shift Solenoid (SS) 3 Control Circuit Low Voltage (TCM)	Inspect Shift Solenoid 3 wiring and connector for shorts to ground, damaged wiring or poor connections. Verify solenoid resistance, power supply and control voltage and replace the solenoid if defective.
P0980	Shift Solenoid (SS) 3 Control Circuit High Voltage (TCM)	Inspect Shift Solenoid 3 circuit for shorts to voltage or damaged insulation. Check solenoid control voltage and connector condition and repair or replace the solenoid if necessary.
P0982	Shift Solenoid (SS) 4 Control Circuit High Voltage (TCM)	Inspect Shift Solenoid 4 circuit for shorts to voltage, damaged wiring or poor connections. Check solenoid resistance, power supply and control signal and repair or replace the solenoid if necessary.
P0983	Shift Solenoid (SS) 4 Control Circuit High Voltage (TCM)	Inspect Shift Solenoid 4 circuit for shorts to voltage or damaged insulation. Verify solenoid control voltage and connector condition and repair or replace the solenoid if necessary.
P0985	Shift Solenoid (SS) 5 Control Circuit Low Voltage (TCM)	Inspect Shift Solenoid 5 circuit for shorts to ground, damaged wiring or poor connections. Check solenoid resistance, power supply and control voltage and repair or replace the solenoid if necessary.
P0986	Shift Solenoid (SS) 5 Control Circuit High Voltage (TCM)	Inspect Shift Solenoid 5 circuit for shorts to voltage or damaged insulation. Check solenoid control voltage and connector condition and repair or replace the solenoid if necessary.
P1031	Heated Oxygen Sensor (HO2S) Heater Current Monitor Control Circuit Banks 1 and 2 Sensor 1	Inspect the HO2S heater circuits for damaged wiring, poor connections or incorrect resistance. Check heater power supply, ground and control current for Banks 1 and 2 Sensor 1 and replace the sensor if the heater is defective.
P1032	Heated Oxygen Sensor (HO2S) Heater Warm Up Control Circuit Banks 1 and 2 Sensor 1	Inspect the HO2S heater warm-up control circuit for damaged wiring or poor connections. Check heater power, ground and control operation for Banks 1 and 2 Sensor 1 and replace the sensor if necessary.
P1101	Actual measured airflow from MAF, MAP, EGR, and TP is not within range of the calculated airflow	Inspect the intake system for air leaks, restricted airflow or incorrect throttle operation. Check MAF, MAP, EGR and throttle position sensor readings and compare measured airflow with calculated values; repair or replace faulty components.
P1105	Secondary Vacuum Sensor Circuit	Inspect the secondary vacuum sensor, hoses, wiring and connector for leaks, damage or poor contact. Check sensor power, ground and signal and replace the sensor if readings are incorrect.
P1106	Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage	Inspect the MAP sensor circuit for intermittent high voltage, damaged wiring or poor connections. Check sensor power, ground and signal and inspect the intake system for abnormal pressure; replace the sensor if defective.
P1107	Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage	Inspect the MAP sensor circuit for intermittent low voltage, damaged wiring or poor connections. Check sensor power, ground and signal and inspect the intake system for leaks or restrictions; replace the sensor if defective.
P1108	BARO to MAP Sensor Comparison Too High	Compare MAP and BARO sensor readings with atmospheric pressure and engine operating conditions. Inspect both sensors, wiring and connectors and replace the faulty sensor if the comparison remains outside specifications.
P1109	Secondary Port Throttle System	Inspect the secondary port throttle system for sticking, carbon buildup or mechanical damage. Check the throttle actuator, wiring, power supply and position feedback and clean or replace faulty components.
P1111	Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage	Inspect the IAT sensor circuit for intermittent high voltage, damaged wiring or poor connections. Check sensor power, ground and signal and replace the sensor if the signal remains too high.
P1112	Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage	Inspect the IAT sensor circuit for intermittent low voltage, damaged wiring or poor connections. Check sensor power, ground and signal and replace the sensor if the signal remains too low.
P1113	Intake Resonance Switchover Solenoid Control Circuit	Inspect the intake resonance switchover solenoid wiring and connector for damage or poor contact. Check solenoid resistance, power supply and control signal and inspect the intake system for mechanical restrictions; replace the solenoid if defective.
P1114	Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage	Inspect the ECT sensor circuit for intermittent low voltage, damaged wiring or poor connections. Check sensor power, ground and signal and replace the sensor if the signal remains too low.
P1115	Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage	Inspect the ECT sensor circuit for intermittent high voltage, damaged wiring or poor connections. Check sensor power, ground and signal and replace the sensor if the signal remains too high.
P1116	ECT Signal Unstable or Intermittent	Inspect the ECT sensor wiring and connector for loose connections, corrosion or intermittent contact. Monitor the coolant temperature signal and compare it with actual engine temperature; replace the sensor if necessary.
P1117	Engine Coolant Temp. Signal out-of-Range Low	Inspect the ECT sensor circuit for low or out-of-range signal voltage. Check sensor wiring, connector and coolant temperature data and replace the sensor if the signal remains below specification.
P1118	Engine Coolant Temp. Signal out-of-Range High	Inspect the ECT sensor circuit for high or out-of-range signal voltage. Check sensor wiring, connector and coolant temperature data and replace the sensor if the signal remains above specification.
P1119	ECT Signal out-of-Range With TFT Sensor	Compare ECT and TFT sensor readings with actual engine and transmission temperatures. Inspect both sensors, wiring and connectors and repair or replace the faulty component if the temperature signals are inconsistent.
P1120	Throttle Position (TP) Sensor 1 Circuit	Inspect the Throttle Position (TP) Sensor 1 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P1121	Throttle Position (TP) Sensor Circuit Intermittent High Voltage	Inspect the TP sensor circuit for intermittent high voltage, damaged wiring or poor connections. Check sensor power, ground and signal while operating the throttle and replace the sensor if necessary.
P1122	Throttle Position (TP) Sensor Circuit Intermittent Low Voltage	Inspect the TP sensor circuit for intermittent low voltage, damaged wiring or poor connections. Check sensor power, ground and signal while operating the throttle and replace the sensor if necessary.
P1125	Accelerator Pedal Position (APP) System	Inspect the accelerator pedal position system for damaged wiring, poor connections or incorrect sensor readings. Check APP sensor signals, power and ground and verify that both pedal position signals change correctly.
P1130	Heated Oxygen Sensor (HO2S) Circuit Low Variance Bank 1 Sensor 1	Inspect Bank 1 Sensor 1 for contamination, exhaust leaks or incorrect operation. Check oxygen sensor wiring, heater operation and signal response and replace the sensor if the signal remains outside specifications.
P1131	Heated Oxygen Sensor (HO2S) Circuit Low Variance Bank 1 Sensor 2	Inspect Bank 1 Sensor 2 for contamination, exhaust leaks or incorrect operation. Check oxygen sensor wiring, heater operation and signal response and replace the sensor if necessary.
P1132	Heated Oxygen Sensor (HO2S) Circuit Low Variance Bank 2 Sensor 1	Inspect Bank 2 Sensor 1 for contamination, exhaust leaks or incorrect operation. Check oxygen sensor wiring, heater operation and signal response and replace the sensor if the signal remains outside specifications.
P1133	Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1	Inspect Bank 1 Sensor 1 for slow or insufficient switching. Check the air-fuel mixture, exhaust leaks, sensor wiring and heater operation and replace the sensor if its response remains inadequate.
P1134	Heated Oxygen Sensor (HO2S) Transition Time Ratio Bank 1 Sensor 1	Inspect Bank 1 Sensor 1 for slow transition between lean and rich conditions. Check fuel control, vacuum leaks, exhaust leaks and sensor operation and replace the sensor if response remains outside specifications.
P1135	Heated Oxygen Sensor (HO2S) Lean Mean Bank 1 Sensor 1	Inspect Bank 1 Sensor 1 and the engine air-fuel system for a persistent lean condition. Check for vacuum leaks, fuel pressure problems, injector faults and sensor operation and repair the underlying cause.
P1136	Heated Oxygen Sensor (HO2S) Rich Mean Bank 1 Sensor 1	Inspect Bank 1 Sensor 1 and the engine air-fuel system for a persistent rich condition. Check fuel pressure, injectors, air intake and sensor operation and repair the underlying cause.
P1137	Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 Lean System or Low Voltage	Inspect Bank 1 Sensor 2 for a lean signal or low voltage. Check for exhaust leaks, sensor wiring, heater operation and air-fuel control problems and replace the sensor if defective.
P1138	Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 Rich or High Voltage	Inspect Bank 1 Sensor 2 for a rich signal or high voltage. Check fuel mixture, sensor wiring, heater operation and exhaust system condition and repair or replace faulty components.
P1139	Heated Oxygen Sensor (HO2S) Insuff. Switching Bank 1 Sensor 2	Inspect Bank 1 Sensor 2 for insufficient switching activity. Check sensor wiring, heater operation, exhaust leaks and air-fuel mixture and replace the sensor if its response remains inadequate.
P1140	Heated Oxygen Sensor (HO2S) Transition Time Ratio Bank 1 Sensor 2	Inspect Bank 1 Sensor 2 for abnormal transition time between lean and rich conditions. Check fuel control, exhaust leaks, sensor wiring and heater operation and replace the sensor if necessary.
P1141	Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2	Inspect the Bank 1 Sensor 2 heater control circuit for damaged wiring, poor connections or incorrect resistance. Check heater power, ground and control signal and replace the sensor if the heater is defective.
P1143	Heated Oxygen Sensor (HO2S) Bank 1 Sensor 3 Lean System or Low Voltage	Inspect Bank 1 Sensor 3 for a lean signal or low voltage. Check sensor wiring, heater operation, exhaust leaks and air-fuel control and replace the sensor if defective.
P1144	Heated Oxygen Sensor (HO2S) Bank 1 Sensor 3 Rich or High Voltage	Inspect Bank 1 Sensor 3 for a rich signal or high voltage. Check fuel mixture, sensor wiring, heater operation and exhaust condition and repair or replace faulty components.
P1145	Heated Oxygen Sensor (HO2S) Cross Counts Bank 1 Sensor 3	Inspect Bank 1 Sensor 3 for abnormal cross-count activity. Check oxygen sensor wiring, heater operation and signal response and replace the sensor if switching remains outside specifications.
P1153	Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 2 Sensor 1	Inspect Bank 2 Sensor 1 for slow or insufficient switching. Check the air-fuel mixture, exhaust leaks, sensor wiring and heater operation and replace the sensor if its response remains inadequate.
P1154	Heated Oxygen Sensor (HO2S) Transition Time Ratio Bank 2 Sensor 1	Inspect Bank 2 Sensor 1 for abnormal transition time between lean and rich conditions. Check fuel control, exhaust leaks, sensor wiring and heater operation and replace the sensor if necessary.
P1155	Heated Oxygen Sensor (HO2S) Lean Mean Bank 2 Sensor 1	Inspect Bank 2 Sensor 1 and the engine air-fuel system for a persistent lean condition. Check for vacuum leaks, fuel pressure problems, injector faults and sensor operation and repair the underlying cause.
P1156	Heated Oxygen Sensor (HO2S) Rich Mean Bank 2 Sensor 1	Inspect Bank 2 Sensor 1 and the engine air-fuel system for a persistent rich condition. Check fuel pressure, injectors, air intake and sensor operation and repair the underlying cause.
P1157	Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 Lean System or Low Voltage	Inspect Bank 2 Sensor 2 for a lean signal or low voltage. Check for exhaust leaks, sensor wiring, heater operation and air-fuel control problems and replace the sensor if defective.
P1158	Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 Rich or High Voltage	Inspect Bank 2 Sensor 2 for a rich signal or high voltage. Check fuel mixture, sensor wiring, heater operation and exhaust condition and repair or replace faulty components.
P1159	Heated Oxygen Sensor (HO2S) Cross Counts Bank 2 Sensor 2	Inspect Bank 2 Sensor 2 for abnormal cross-count activity. Check oxygen sensor wiring, heater operation and signal response and replace the sensor if switching remains outside specifications.
P1161	Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 2 Sensor 2	Inspect the Bank 2 Sensor 2 heater control circuit for damaged wiring, poor connections or incorrect resistance. Check heater power, ground and control signal and replace the sensor if the heater is defective.
P1163	Heated Oxygen Sensor (HO2S) Bank 2 Sensor 3 Lean System or Low Voltage	Inspect Bank 2 Sensor 3 for a lean signal or low voltage. Check sensor wiring, heater operation, exhaust leaks and air-fuel control and replace the sensor if defective.
P1164	Heated Oxygen Sensor (HO2S) Bank 2 Sensor 3 Rich or High Voltage	Inspect Bank 2 Sensor 3 for a rich signal or high voltage. Check fuel mixture, sensor wiring, heater operation and exhaust condition and repair or replace faulty components.
P1165	Heated Oxygen Sensor (HO2S) Cross Counts Bank 2 Sensor 3	Inspect Bank 2 Sensor 3 for abnormal cross-count activity. Check oxygen sensor wiring, heater operation and signal response and replace the sensor if switching remains outside specifications.
P1170	Bank to Bank Fuel Trim Offset	Compare fuel trim values between engine banks and inspect for differences in air intake, fuel delivery or exhaust conditions. Check oxygen sensors, injectors and fuel pressure and correct the cause of the bank-to-bank offset.
P1171	Fuel System Lean During Acceleration	Inspect the intake system for vacuum or air leaks and check fuel pressure and injector operation. Verify MAF/MAP and oxygen sensor readings and repair the cause of the lean condition during acceleration.
P1172	Fuel Transfer Pump Flow Insufficient	Check the fuel transfer pump, fuel lines and filter for restrictions or damage. Verify pump power supply, fuel pressure and flow rate and repair or replace faulty components.
P1185	Engine Oil Temperature Circuit	Inspect the Engine Oil Temperature (EOT) sensor wiring and connector for damage or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P1186	EOT Circuit Performance	Check the EOT sensor for incorrect temperature readings and inspect its wiring and connector. Compare sensor data with actual oil temperature and repair or replace faulty components.
P1187	EOT Sensor Circuit Low Voltage	Inspect the EOT sensor circuit for shorts to ground, damaged wiring or poor connections. Verify sensor power and signal voltage and replace the sensor if the voltage remains too low.
P1188	EOT Sensor Circuit High Voltage	Inspect the EOT sensor circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the voltage remains too high.
P1189	Engine Oil Pressure (EOP) Switch Circuit	Inspect the Engine Oil Pressure switch wiring and connector for damage, corrosion or poor contact. Check actual oil pressure, switch operation and signal circuit and repair or replace faulty components.
P1190	Engine Vacuum Leak	Inspect the engine intake system for vacuum leaks, damaged hoses or loose connections. Check intake manifold gaskets, PCV system and vacuum-operated components and repair any leaks.
P1191	Intake Air Duct Air Leak	Inspect the intake air duct for cracks, loose clamps or disconnected hoses between the air filter, MAF sensor and throttle body. Repair or replace damaged components and verify that no unmetered air enters the intake system.
P1200	Injector Control Circuit	Inspect the injector control circuit wiring and connectors for damage, corrosion or poor contact. Check injector resistance, power supply and control signals and replace the injector or repair the circuit if defective.
P1201	(Alt. Fuel) Gas Mass Sensor Circuit Range/Performance	Inspect the alternative-fuel gas mass sensor wiring and connector for damage or poor contact. Check sensor power, ground, frequency signal and fuel-gas flow and replace the sensor if readings remain outside specifications.
P1202	(Alt. Fuel) Gas Mass Sensor Circuit Low Frequency	Inspect the alternative-fuel gas mass sensor circuit for low-frequency signal, damaged wiring or poor connections. Check sensor power and signal frequency and replace the sensor if the output remains too low.
P1203	(Alt. Fuel) Gas Mass Sensor Circuit High Frequency	Inspect the alternative-fuel gas mass sensor circuit for high-frequency signal, damaged wiring or poor connections. Check sensor power and signal frequency and replace the sensor if the output remains too high.
P1211	Mass Air Flow Circuit Intermittent High	Inspect the MAF sensor circuit for intermittent high voltage, damaged wiring or poor connections. Check sensor power, ground and signal and inspect the intake system for airflow abnormalities; replace the sensor if defective.
P1212	Mass Air Flow Circuit Intermittent Low	Inspect the MAF sensor circuit for intermittent low voltage, damaged wiring or poor connections. Check sensor power, ground and signal and inspect the intake system for leaks or restrictions; replace the sensor if defective.
P1214	Injection Pump Timing Offset	Check the injection pump timing and verify timing marks and synchronization. Inspect the pump timing control system, wiring and related sensors and correct the timing offset according to manufacturer specifications.
P1215	Ground Fault Detection Indicated	Inspect the relevant electrical circuits for shorts to ground, damaged wiring or poor connections. Check component resistance, power and ground circuits and repair or replace the faulty component.
P1216	Fuel Solenoid Response Time Too short	Inspect the fuel solenoid for sticking, contamination or restricted fuel flow. Check solenoid resistance, power supply, control signal and fuel pressure and replace the solenoid if its response is too fast or outside specifications.
P1217	Fuel Solenoid Response Time Too Long	Inspect the fuel solenoid for sticking, contamination or restricted fuel flow. Check solenoid resistance, power supply, control signal and fuel pressure and replace the solenoid if its response is too slow or outside specifications.
P1218	Injection Pump Calibration Circuit	Inspect the injection pump calibration circuit, wiring and connectors for damage or poor contact. Verify pump calibration data and control signals and perform calibration or replace faulty components as required.
P1219	Throttle Position Sensor Reference Voltage	Inspect the throttle position sensor reference-voltage circuit for shorts, damaged wiring or poor connections. Verify the reference voltage and sensor ground and repair the circuit or replace the sensor if necessary.
P1220	Throttle Position (TP) Sensor 2 Circuit	Inspect Throttle Position Sensor 2 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P1221	Fuel Pump Secondary Circuit Low	Inspect the fuel pump secondary circuit for low voltage, damaged wiring or poor connections. Check pump power supply, relay, ground and control signal and repair or replace faulty components.
P1222	Injector Control Circuit Intermittent	Inspect the injector control circuit wiring and connectors for loose connections, corrosion or intermittent contact. Check injector resistance, power supply and control signal and repair or replace faulty components.
P1225	Injector Circuit Cylinder 2 Intermittent	Inspect the Cylinder 2 injector wiring and connector for loose connections, corrosion or intermittent contact. Check injector resistance, power supply and control signal and replace the injector or repair the circuit if necessary.
P1228	Injector Circuit Cylinder 3 Intermittent	Inspect the Cylinder 3 injector wiring and connector for loose connections, corrosion or intermittent contact. Check injector resistance, power supply and control signal and replace the injector or repair the circuit if necessary.
P1231	Injector Circuit Cylinder 4 Intermittent	Inspect the Cylinder 4 injector wiring and connector for loose connections, corrosion or intermittent contact. Check injector resistance, power supply and control signal and replace the injector or repair the circuit if necessary.
P1234	Injector Circuit Cylinder 5 Intermittent	Inspect the Cylinder 5 injector wiring and connector for loose connections, corrosion or intermittent contact. Check injector resistance, power supply and control signal and replace the injector or repair the circuit if necessary.
P1237	Injector Circuit Cylinder 6 Intermittent	Inspect the Cylinder 6 injector wiring and connector for loose connections, corrosion or intermittent contact. Check injector resistance, power supply and control signal and replace the injector or repair the circuit if necessary.
P1240	Injector Circuit Cylinder 7 Intermittent	Inspect the Cylinder 7 injector wiring and connector for loose connections, corrosion or intermittent contact. Check injector resistance, power supply and control signal and replace the injector or repair the circuit if necessary.
P1243	Injector Circuit Cylinder 8 Intermittent	Inspect the Cylinder 8 injector wiring and connector for loose connections, corrosion or intermittent contact. Check injector resistance, power supply and control signal and replace the injector or repair the circuit if necessary.
P1245	Intake Plenum Switchover Valve	Inspect the intake plenum switchover valve for sticking, carbon buildup or mechanical damage. Check the valve actuator, vacuum supply or electrical control circuit and repair or replace faulty components.
P1250	Early Fuel Evaporation Heater Circuit	Inspect the early fuel evaporation heater circuit, wiring and connectors for damage or poor contact. Check heater resistance, power supply and control signal and replace the heater if defective.
P1257	Supercharger System Overboost	Inspect the supercharger system for excessive boost pressure, restricted intake or exhaust flow and actuator faults. Check the boost control valve, pressure sensor and related hoses and repair the cause of the overboost condition.
P1258	Engine Coolant Overtemperature – above 268°F – Protection Mode Active	Check engine coolant level and condition and inspect the cooling system for leaks or restrictions. Verify thermostat, cooling fan, coolant temperature sensor and water pump operation and correct the cause of the overheating condition.
P1260	Last Test Failed Failed SCC ENTER:More Info.	Review the additional test information stored in the control module and scan for related DTCs. Perform the specified system test indicated by the manufacturer and repair the underlying fault before clearing the code.
P1270	Accelerator Pedal Position Sensor A/D Converter Error	Inspect the accelerator pedal position sensor circuit and control module connections for damaged wiring or poor contact. Check the APP sensor signals and A/D converter input and repair or replace the faulty component.
P1271	Accelerator Pedal Position (APP) Sensor 1-2 Correlation	Compare APP Sensor 1 and Sensor 2 signals throughout the full pedal range. Inspect wiring, connectors, power and ground circuits and replace the APP sensor assembly if the signals do not correlate correctly.
P1272	Accelerator Pedal Position Sensor 2	Inspect Accelerator Pedal Position Sensor 2 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P1273	Accelerator Pedal Position Sensor 1	Inspect Accelerator Pedal Position Sensor 1 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P1274	Injectors Wired Incorrectly	Verify injector wiring against the manufacturer’s wiring diagram and cylinder identification. Inspect injector connectors and harness routing and correct any incorrectly connected injector circuits.
P1275	Accelerator Pedal Position (APP) Sensor 1 Circuit	Inspect APP Sensor 1 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P1276	Accelerator Pedal Position Sensor 1 Circuit Performance	Monitor APP Sensor 1 operation through the complete accelerator pedal range. Check for signal dropouts, incorrect response, wiring faults or mechanical pedal problems and replace faulty components.
P1277	Accelerator Pedal Position Sensor 1 Circuit Low Voltage	Inspect APP Sensor 1 circuit for shorts to ground, damaged wiring or poor connections. Verify sensor reference voltage, ground and signal and replace the sensor if the voltage remains too low.
P1278	Accelerator Pedal Position Sensor 1 Circuit High Voltage	Inspect APP Sensor 1 circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the voltage remains too high.
P1280	Accelerator Pedal Position (APP) Sensor 2 Circuit	Inspect APP Sensor 2 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P1281	Accelerator Pedal Position Sensor 2 Circuit Performance	Monitor APP Sensor 2 operation throughout the accelerator pedal range. Check for signal dropouts, incorrect response, wiring faults or mechanical pedal problems and replace faulty components.
P1282	Accelerator Pedal Position Sensor 2 Circuit Low Voltage	Inspect APP Sensor 2 circuit for shorts to ground, damaged wiring or poor connections. Verify sensor reference voltage, ground and signal and replace the sensor if the voltage remains too low.
P1283	Accelerator Pedal Position Sensor 2 Circuit High Voltage	Inspect APP Sensor 2 circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the voltage remains too high.
P1285	Accelerator Pedal Position Sensor 3 Circuit	Inspect APP Sensor 3 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P1286	Accelerator Pedal Position Sensor 3 Circuit Performance	Monitor APP Sensor 3 operation throughout the accelerator pedal range. Check for signal dropouts, incorrect response, wiring faults or mechanical pedal problems and replace faulty components.
P1287	Accelerator Pedal Position Sensor 3 Circuit Low Voltage	Inspect APP Sensor 3 circuit for shorts to ground, damaged wiring or poor connections. Verify sensor reference voltage, ground and signal and replace the sensor if the voltage remains too low.
P1288	Accelerator Pedal Position Sensor 3 Circuit High Voltage	Inspect APP Sensor 3 circuit for shorts to voltage or damaged insulation. Check sensor signal voltage and connector condition and replace the sensor if the voltage remains too high.
P1300	Ignitor Circuit	Inspect the ignitor circuit wiring, connectors and power supply for damage or poor connections. Check the ignition control signal and ignitor operation and replace the faulty component if necessary.
P1305	Ignition Coil 2 Primary Feedback Circuit	Inspect the Ignition Coil 2 primary feedback circuit for damaged wiring, poor connections or shorts. Check coil power, ground and feedback signal and replace the ignition coil if defective.
P1310	Ignition Coil 3 Primary Feedback Circuit	Inspect the Ignition Coil 3 primary feedback circuit for damaged wiring, poor connections or shorts. Check coil power, ground and feedback signal and replace the ignition coil if defective.
P1315	Ignition Coil 4 Primary Feedback Circuit	Inspect the Ignition Coil 4 primary feedback circuit for damaged wiring, poor connections or shorts. Check coil power, ground and feedback signal and replace the ignition coil if defective.
P1320	IC 4X Reference Circuit Intermittent	Inspect the IC 4X reference circuit for intermittent connections, damaged wiring or electrical interference. Check the reference signal, sensor connections and power supply and repair the circuit as necessary.
P1321	Electronic Ignition System Fault Line	Inspect the electronic ignition system fault line for damaged wiring, poor connections or abnormal voltage. Check the ignition control module and related circuits and repair or replace faulty components.
P1322	EI System or Ignition Control Extra or Missing	Inspect the electronic ignition system for missing or additional ignition control signals. Check ignition wiring, coils, control module and reference signals and repair any incorrect or missing connections.
P1323	IC 24X Reference Circuit Low Frequency	Inspect the IC 24X reference circuit for low-frequency or missing pulse signals. Check the crankshaft/reference sensor, wiring, connectors and power supply and replace the sensor if defective.
P1324	Crank RPM Too Low	Check the engine cranking speed and battery voltage during starting. Inspect the starter motor, battery, power and ground connections and correct any condition causing insufficient crankshaft RPM.
P1335	CKP Circuit	Inspect the CKP circuit wiring and connector for damage, corrosion or poor contact. Check CKP sensor power, ground and signal and replace the sensor if the signal is missing or incorrect.
P1336	Crankshaft Position (CKP) System variation not Learned	Perform the crankshaft position variation relearn procedure using a compatible diagnostic tool. If the relearn fails, inspect the CKP sensor, timing components, wiring and crankshaft reluctor for damage or incorrect alignment.
P1345	Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation	Check the crankshaft and camshaft position sensor signals for correct synchronization. Inspect timing marks, timing chain/belt condition and sensor wiring and correct any mechanical timing or sensor fault.
P1346	Intake Camshaft Position [CMP] Sensor System Performance	Inspect the intake camshaft position sensor and its wiring and connector. Check sensor power, ground and signal and verify camshaft timing; repair or replace faulty components as necessary.
P1350	Ignition Control System	Inspect the ignition control system for damaged wiring, poor connections or incorrect control signals. Check ignition coils, control module, power supply and grounds and repair or replace faulty components.
P1351	Ignition Coil Control Circuit High Voltage	Inspect the ignition coil control circuit for excessive voltage, damaged insulation or shorts to voltage. Check coil power, control signal and wiring and replace the coil or repair the circuit if necessary.
P1352	IC Output High/Pulse Detected when GND_Cyl. 2	Inspect the ignition control circuit for an unwanted pulse or high signal on Cylinder 2. Check the ignition coil, control wiring and ignition module for shorts or internal faults and repair as necessary.
P1353	IC Output High/Pulse Detected when GND_Cyl. 3	Inspect the ignition control circuit for an unwanted pulse or high signal on Cylinder 3. Check the ignition coil, control wiring and ignition module for shorts or internal faults and repair as necessary.
P1354	IC Output High/Pulse Detected when GND_Cyl. 4	Inspect the ignition control circuit for an unwanted pulse or high signal on Cylinder 4. Check the ignition coil, control wiring and ignition module for shorts or internal faults and repair as necessary.
P1355	IC Output High/Pulse Detected when GND_Cyl. 5	Inspect the ignition control circuit for an unwanted pulse or high signal on Cylinder 5. Check the ignition coil, control wiring and ignition module for shorts or internal faults and repair as necessary.
P1356	IC Output High/Pulse Detected when GND_Cyl. 6	Inspect the ignition control circuit for an unwanted pulse or high signal on Cylinder 6. Check the ignition coil, control wiring and ignition module for shorts or internal faults and repair as necessary.
P1357	IC Output High/Pulse Detected when GND_Cyl. 7	Inspect the ignition control circuit for an unwanted pulse or high signal on Cylinder 7. Check the ignition coil, control wiring and ignition module for shorts or internal faults and repair as necessary.
P1358	IC Output High/Pulse Detected when GND_Cyl. 8	Inspect the ignition control circuit for an unwanted pulse or high signal on Cylinder 8. Check the ignition coil, control wiring and ignition module for shorts or internal faults and repair as necessary.
P1359	Ignition Coil Group 1 Control Circuit	Inspect Ignition Coil Group 1 control wiring, connectors and power supply for damage or poor connections. Check the control signal and coil operation and repair or replace faulty components.
P1360	Ignition Coil Group 2 Control Circuit	Inspect Ignition Coil Group 2 control wiring, connectors and power supply for damage or poor connections. Check the control signal and coil operation and repair or replace faulty components.
P1361	Ignition Coil Control Circuit Low Voltage	Inspect the ignition coil control circuit for low voltage, damaged wiring or poor connections. Check power supply, ground and control signal and repair the circuit or replace the faulty coil.
P1362	IC Cylinder 2 Not Toggling After Enable	Inspect the Cylinder 2 ignition control circuit for a missing switching signal after activation. Check the ignition coil, wiring, power supply and ignition control module and replace faulty components if necessary.
P1363	IC Cylinder 3 Not Toggling After Enable	Inspect the Cylinder 3 ignition control circuit for a missing switching signal after activation. Check the ignition coil, wiring, power supply and ignition control module and replace faulty components if necessary.
P1364	IC Cylinder 4 Not Toggling After Enable	Inspect the Cylinder 4 ignition control circuit for a missing switching signal after activation. Check the ignition coil, wiring, power supply and ignition control module and replace faulty components if necessary.
P1365	IC Cylinder 5 Not Toggling After Enable	Inspect the Cylinder 5 ignition control circuit for a missing switching signal after activation. Check the ignition coil, wiring, power supply and ignition control module and replace faulty components if necessary.
P1366	IC Cylinder 6 Not Toggling After Enable	Inspect the Cylinder 6 ignition control circuit for a missing switching signal after activation. Check the ignition coil, wiring, power supply and ignition control module and replace faulty components if necessary.
P1367	IC Cylinder 7 Not Toggling After Enable	Inspect the Cylinder 7 ignition control circuit for a missing switching signal after activation. Check the ignition coil, wiring, power supply and ignition control module and repair or replace faulty components.
P1368	IC Cylinder 8 Not Toggling After Enable	Inspect the Cylinder 8 ignition control circuit for a missing switching signal after activation. Check the ignition coil, wiring, power supply and ignition control module and repair or replace faulty components.
P1370	IC 4X Reference Circuit Too Many Pulses	Inspect the IC 4X reference circuit for excessive pulse frequency. Check the crankshaft/reference sensor, wiring, connectors and signal pattern and repair or replace faulty components.
P1371	IC 4X Reference Circuit Too Few Pulses	Inspect the IC 4X reference circuit for insufficient pulse frequency. Check the crankshaft/reference sensor, wiring, connectors and signal pattern and repair or replace faulty components.
P1372	Crankshaft Position (CKP) Sensor A-B Correlation	Check the CKP Sensor A and B signals for correct synchronization and correlation. Inspect sensors, wiring, connectors and crankshaft reluctor components and repair or replace faulty parts.
P1374	3X Reference Circuit	Inspect the 3X reference circuit for damaged wiring, poor connections or an incorrect pulse signal. Check the reference sensor, power supply and signal pattern and repair or replace faulty components.
P1375	IC 24X Reference Circuit High Voltage	Inspect the IC 24X reference circuit for excessive voltage. Check sensor power, ground, signal wiring and connector condition and repair or replace the sensor or wiring as necessary.
P1376	Ignition Ground Circuit	Inspect the ignition ground circuit for loose connections, corrosion or excessive resistance. Check the ignition system ground points and repair the ground connection if necessary.
P1377	IC Cam Pulse To 4X Reference Pulse	Check the relationship between the camshaft pulse and the 4X reference pulse. Inspect camshaft and crankshaft position sensors, timing components and wiring and correct any synchronization problem.
P1380	Misfire Detected – Rough Road Data not Available	Check for engine misfire and inspect the rough-road data system. Verify wheel speed sensors, ABS/brake control module communication and related wiring and repair any faults preventing rough-road data from being received.
P1381	Misfire Detected – No Communication With Brake Control Module	Inspect communication between the engine control module and brake control module. Check CAN wiring, connectors, power and grounds and diagnose any ABS/brake control module faults.
P1390	Wheel Speed Sensor 1 – G – Sensor Circuit	Inspect Wheel Speed Sensor 1 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P1391	Wheel Speed Sensor 1 – G – Sensor Circuit Performance	Check Wheel Speed Sensor 1 operation and compare its signal with the other wheel speed sensors. Inspect the sensor, tone ring and wiring and repair or replace faulty components.
P1392	Wheel Speed Sensor 1 – G – Sensor Circuit Low Voltage	Inspect Wheel Speed Sensor 1 circuit for low voltage, damaged wiring or poor connections. Check sensor power, ground and signal and replace the sensor if necessary.
P1393	Wheel Speed Sensor 1 – G – Sensor Circuit High Voltage	Inspect Wheel Speed Sensor 1 circuit for high voltage, shorts to voltage or damaged insulation. Check sensor signal and wiring and replace the sensor if defective.
P1394	Wheel Speed Sensor 1 – G – Sensor Circuit Intermittent	Inspect Wheel Speed Sensor 1 circuit for intermittent connections or signal dropouts. Check the sensor, tone ring, wiring and connector and repair or replace faulty components.
P1395	Wheel Speed Sensor 2 – G – Sensor Circuit	Inspect Wheel Speed Sensor 2 wiring and connector for damage, corrosion or poor contact. Check sensor power, ground and signal and replace the sensor if defective.
P1396	Wheel Speed Sensor 2 – G – Sensor Circuit Performance	Check Wheel Speed Sensor 2 operation and compare its signal with the other wheel speed sensors. Inspect the sensor, tone ring and wiring and repair or replace faulty components.
P1397	Wheel Speed Sensor 2 – G – Sensor Circuit Low Voltage	Inspect Wheel Speed Sensor 2 circuit for low voltage, damaged wiring or poor connections. Check sensor power, ground and signal and replace the sensor if necessary.
P1398	Wheel Speed Sensor 2 – G – Sensor Circuit High Voltage	Inspect Wheel Speed Sensor 2 circuit for high voltage, shorts to voltage or damaged insulation. Check sensor signal and wiring and replace the sensor if defective.
P1399	Wheel Speed Sensor 2 – G – Sensor Circuit Intermittent	Inspect Wheel Speed Sensor 2 circuit for intermittent connections or signal dropouts. Check the sensor, tone ring, wiring and connector and repair or replace faulty components.
P1403	Exhaust Gas Recirculation System Valve 1	Inspect EGR Valve 1 for sticking, carbon buildup or mechanical damage. Check the valve actuator, wiring, vacuum supply and control signal and clean or replace the valve if necessary.
P1404	Exhaust Gas Recirculation (EGR) Closed Position Performance	Inspect the EGR valve for incorrect closed-position feedback or sticking. Check the EGR position sensor, wiring and valve movement and clean or replace the valve if it does not reach the specified closed position.
P1405	Exhaust Gas Recirculation System Valve 3	Inspect EGR Valve 3 for sticking, carbon buildup or mechanical damage. Check the valve actuator, wiring, vacuum supply and control signal and clean or replace the valve if necessary.
P1406	EGR Valve Pintle Position Circuit	Inspect the EGR valve pintle position sensor circuit for damaged wiring, poor connections or incorrect signal voltage. Check sensor operation and valve movement and replace the faulty component if necessary.
P1407	EGR Air Intrusion in Exhaust Supply to EGR Valve	Inspect the EGR supply system for air intrusion, loose connections, damaged hoses or exhaust leaks. Check the EGR valve, passages and related seals and repair any source of unwanted air entry.
P1408	Intake Manifold Pressure Sensor Circuit	Inspect the intake manifold pressure sensor wiring and connector for damage or poor contact. Check sensor power, ground and signal and inspect the intake system for leaks or restrictions; replace the sensor if defective.
P1409	EGR Vacuum System Leak	Inspect the EGR vacuum system for cracked, disconnected or leaking hoses. Check the vacuum source, control solenoid and EGR actuator and repair or replace faulty components.
P1410	Fuel Tank Pressure System	Inspect the fuel tank pressure system for leaks, damaged hoses or faulty pressure sensor operation. Check the sensor wiring, EVAP components and fuel tank pressure and repair the cause of the fault.
P1415	Secondary Air Injection (AIR) System Bank 1	Inspect the Secondary Air Injection (AIR) system on Bank 1 for restricted passages, pump or valve faults and damaged wiring. Check the AIR pump, relay, switching valve and related hoses and repair or replace faulty components.
P1416	Secondary Air Injection (AIR) System Bank 2	Inspect the Secondary Air Injection (AIR) system on Bank 2 for restricted passages, pump or valve faults and damaged wiring. Check the AIR pump, relay, switching valve and related hoses and repair or replace faulty components.
P1418	Secondary Air Injection System Relay A Control Circuit High	Inspect the Secondary Air Injection relay A control circuit for excessive voltage or a short to voltage. Check the relay, wiring, connectors and control signal and repair or replace faulty components.
P1420	Intake Air Low Pressure Switch Circuit Low Voltage	Inspect the intake air low-pressure switch circuit for low voltage, damaged wiring or poor connections. Check switch operation, power supply and ground and replace the switch if defective.
P1421	Intake Air Low Pressure Switch Circuit High Voltage	Inspect the intake air low-pressure switch circuit for high voltage or a short to voltage. Check switch operation, wiring and connector condition and repair or replace faulty components.
P1423	Intake Air High Pressure Switch Circuit High Voltage	Inspect the intake air high-pressure switch circuit for excessive voltage or a short to voltage. Check switch operation, wiring, connectors and power supply and replace the switch if necessary.
P1431	Fuel Level Sensor 2 Circuit Performance	Inspect Fuel Level Sensor 2 for incorrect or unstable readings. Check the sensor, wiring, connector and fuel tank sender mechanism and repair or replace the faulty component.
P1432	Fuel Level Sensor 2 Circuit Low Voltage	Inspect Fuel Level Sensor 2 circuit for low voltage, damaged wiring or poor connections. Check sensor power, ground and signal and replace the sensor if the voltage remains too low.
P1433	Fuel Level Sensor 2 Circuit High Voltage	Inspect Fuel Level Sensor 2 circuit for high voltage, shorts to voltage or damaged insulation. Check sensor signal and wiring and replace the sensor if the voltage remains too high.
P1441	Evaporative Emission (EVAP) System Flow During Non-Purge	Inspect the EVAP system for purge flow occurring when purge is not commanded. Check the purge valve for sticking, damaged hoses and incorrect wiring and replace the valve if it does not close properly.
P1442	EVAP Vacuum Sw. High Voltage During Ign. On	Inspect the EVAP vacuum switch circuit for excessive voltage with the ignition switched on. Check the switch, wiring, connector and EVAP vacuum system and repair or replace faulty components.
P1450	Barometric Pressure Sensor Circuit	Inspect the barometric pressure sensor circuit for damaged wiring, poor connections or incorrect voltage. Check sensor power, ground and signal and replace the sensor if defective.
P1451	Barometric Press. Sensor Performance	Compare the barometric pressure sensor reading with atmospheric pressure and other pressure sensors. Inspect the sensor, wiring and connector and replace the sensor if its output remains outside specifications.
P1460	Cooling Fan Control System	Inspect the cooling fan control system for wiring faults, relay problems or fan motor failure. Check fan operation, control signals, power supply and ground and repair or replace faulty components.
P1480	Cooling Fan 1 Control Circuit High	Inspect Cooling Fan 1 control circuit for excessive voltage or a short to voltage. Check the relay, wiring, connectors and fan control signal and repair or replace faulty components.
P1481	Cooling Fan Speed Sensor Circuit	Inspect the cooling fan speed sensor circuit for damaged wiring, poor connections or an incorrect speed signal. Check sensor power, ground and signal and replace the sensor if defective.
P1482	Cooling Fan Speed Output Circuit	Inspect the cooling fan speed output circuit for damaged wiring, poor connections or an incorrect feedback signal. Check fan control module operation and repair or replace faulty components.
P1483	Engine Cooling System Performance	Check the engine cooling system for insufficient cooling performance. Inspect coolant level, thermostat, radiator, water pump, cooling fan and temperature sensor and repair any cooling system fault.
P1484	Cooling Fan System Performance	Inspect the cooling fan system for fan motor, relay, wiring or control module faults. Verify fan operation at commanded speeds and repair or replace faulty components.
P1500	Starter Signal Circuit	Inspect the starter signal circuit for damaged wiring, poor connections or an incorrect start signal. Check the ignition switch, starter relay and control module input and repair the circuit as necessary.
P1501	Theft Deterrent System	The code description is ambiguous in the supplied data. If related to the theft deterrent system, inspect immobilizer communication, key recognition and related wiring. If related to the vehicle speed sensor, diagnose the VSS circuit for intermittent signal or connection faults.
P1501	Vehicle Speed Sensor Circuit Intermittent	Inspect the Vehicle Speed Sensor circuit for intermittent signal loss, damaged wiring or poor connections. Check sensor operation and signal consistency and replace the sensor if defective.
P1502	Theft Deterrent Fuel Enable Signal not Received	Inspect the theft deterrent system communication and fuel-enable circuit. Check immobilizer/key recognition, wiring, connectors and control module communication and repair the cause of the missing fuel-enable signal.
P1503	Theft Deterrent Fuel Enable Signal not Correct	Inspect the theft deterrent system and fuel-enable signal for incorrect data or communication. Check key/immobilizer recognition, wiring, connectors and module communication and repair or reprogram components as required.
P1504	Vehicle Speed Output Circuit	Inspect the vehicle speed output circuit for damaged wiring, poor connections or an incorrect output signal. Check the control module and VSS-related signals and repair the circuit as necessary.
P1508	Idle Speed Low – Idle Air Control (IAC) System not Responding	Inspect the Idle Air Control (IAC) system for a sticking valve, carbon buildup or restricted airflow. Check IAC wiring, power supply, control signal and throttle body and clean or replace faulty components.
P1509	Idle Speed High – Idle Air Control (IAC) System not Responding	Inspect the Idle Air Control (IAC) system for excessive airflow or a valve stuck open. Check for vacuum leaks, throttle body contamination and IAC control faults and repair or replace faulty components.
P1510	Throttle Control System Performance – Throttle Limitation Active	Inspect the electronic throttle system for faults causing throttle limitation. Check the throttle body, actuator, position sensors, wiring and connectors and perform the required throttle relearn procedure after repair.
P1511	Throttle Control System – Backup System Performance	Inspect the electronic throttle backup system for incorrect operation. Check throttle actuator, position sensors, wiring, power supply and control module communication and repair or replace faulty components.
P1514	Airflow to TP Sensor Correlation High	Inspect the throttle position and airflow signals for excessive correlation error. Check the throttle body, TP sensors, MAF/MAP sensor, intake system and wiring and repair any component causing the mismatch.
P1515	Electronic Throttle System Throttle Position	Inspect the electronic throttle system and throttle position signals for incorrect operation. Check throttle actuator, position sensors, wiring, power supply and connectors and replace or repair faulty components.
P1516	Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance	Inspect the Throttle Actuator Control (TAC) system for incorrect throttle position feedback. Check the throttle actuator, position sensors, wiring, connectors and power supply and perform the required throttle relearn procedure after repair.
P1517	Electronic Throttle Module	Inspect the electronic throttle module for internal faults, damaged wiring or poor connections. Check module power, ground and communication signals and repair or replace the module if necessary.
P1518	Electronic Throttle Module to PCM Communication	Inspect communication between the electronic throttle module and PCM. Check communication wiring, connectors, power and grounds and diagnose any related control module faults.
P1519	Throttle Actuator Control (TAC) Module Internal Circuit	Inspect the TAC module internal circuit for electrical faults, damaged connections or abnormal voltage. Check module power, ground and internal control signals and replace the module if defective.
P1520	Transmission Range Switch Circuit	Inspect the transmission range switch circuit for damaged wiring, poor connections or incorrect position signals. Check the range switch and verify that the indicated gear matches the selected position.
P1521	Transmission Engaged at High Throttle Angle	Check the throttle angle and transmission operating conditions. Inspect the throttle position sensor, transmission range switch and related wiring and verify that the transmission is not being engaged at an excessive throttle angle.
P1522	Park/Neutral to Drive/Reverse at High RPM	Check engine RPM and transmission range switch operation during gear selection. Inspect the range switch, throttle system and control inputs and correct any condition causing engagement at excessively high RPM.
P1523	Throttle Closed Position Performance	Inspect the throttle body and closed-throttle position signal. Check for carbon buildup, sticking or incorrect sensor readings and perform the required throttle position relearn procedure after repair.
P1524	Throttle Closed Position Performance	Inspect the throttle closed-position system for incorrect feedback or adjustment. Check the throttle body, position sensors, wiring and connectors and perform the specified closed-throttle relearn procedure.
P1525	Throttle Body ServiceRequired	Inspect the throttle body for contamination, sticking or mechanical damage. Clean or replace the throttle body as required and perform the manufacturer’s throttle body service and relearn procedure.
P1526	Minimum Throttle Position not Learned	Perform the minimum throttle position learning procedure using a compatible diagnostic tool. If learning fails, inspect the throttle body, position sensors, wiring and power supply and repair the underlying fault.
P1527	Transmission Range to Pressure Switch Correlation	Compare transmission range and pressure switch signals during gear selection. Inspect the range switch, pressure switches, wiring and connectors and repair any mismatch between the signals.
P1528	Governor	Inspect the governor system for incorrect pressure or control operation. Check governor components, transmission fluid condition, wiring and related sensors and repair or replace faulty components.
P1529	Heated Windshield Request Problem	Inspect the heated windshield request circuit for incorrect voltage or communication. Check the switch, wiring, connectors and control module input and repair the circuit as necessary.
P1530	Throttle Actuator Control (TAC) Module Internal Circuit	Inspect the TAC module internal circuit for electrical faults, damaged connections or abnormal voltage. Check module power, ground and control signals and replace the module if defective.
P1531	A/C Low Side Temperature Sensor Fault	Inspect the A/C low-side temperature sensor and circuit for damage, poor connections or incorrect readings. Check sensor power, ground and signal and replace the sensor if defective.
P1532	A/C Evaporator Temp. Sens. Circuit Low Voltage	Inspect the A/C evaporator temperature sensor circuit for low voltage, damaged wiring or poor connections. Check sensor power, ground and signal and replace the sensor if necessary.
P1533	A/C Evaporator Temp. Sens. Circuit High Voltage	Inspect the A/C evaporator temperature sensor circuit for high voltage, shorts to voltage or damaged wiring. Check sensor signal and connector condition and replace the sensor if defective.
P1534	A/C High Side Temp. Sensor Low Voltage	Inspect the A/C high-side temperature sensor circuit for low voltage, damaged wiring or poor connections. Check sensor power, ground and signal and replace the sensor if necessary.
P1535	A/C High Side Temperature Sensor Circuit	Inspect the A/C high-side temperature sensor circuit for damaged wiring, poor connections or incorrect signal voltage. Check sensor power, ground and signal and replace the sensor if defective.
P1536	Engine Coolant Overtemperature – Air Conditioning (A/C) Disabled	Check engine coolant level and condition and inspect the cooling system for overheating. Verify thermostat, radiator, cooling fan, water pump and coolant temperature sensor operation before restoring A/C operation.
P1537	A/C Request Circuit Low Voltage	Inspect the A/C request circuit for low voltage, damaged wiring or poor connections. Check the A/C control switch, request signal and control module input and repair the circuit as necessary.
P1538	A/C Request Circuit High Voltage	Inspect the A/C request circuit for high voltage or a short to voltage. Check the A/C control switch, wiring and connector and repair or replace faulty components.
P1539	A/C Clutch Status Circuit High Voltage	Inspect the A/C clutch status circuit for high voltage or a short to voltage. Check the clutch relay, compressor clutch wiring and feedback signal and repair or replace faulty components.
P1540	Air Conditioning (A/C) Refrigerant Overpressure – Air Conditioning (A/C) Disabled	Check the A/C refrigerant pressure and temperature and inspect the system for excessive pressure or restricted airflow. Verify refrigerant charge, pressure sensors, condenser and cooling fans and repair the cause before re-enabling A/C operation.
P1541	A/C High Side Over Temperature	Inspect the A/C high-side temperature sensor and refrigerant system for excessive temperature. Check refrigerant pressure, condenser airflow, cooling fans and sensor operation and correct the cause of the overheating condition.
P1542	A/C System High Pressure High Temperature	Check A/C refrigerant pressure and high-side temperature. Inspect refrigerant charge, condenser airflow, cooling fans and pressure/temperature sensors and repair the cause of excessive system pressure or temperature.
P1543	A/C System Performance	Inspect the A/C system for abnormal pressure, insufficient cooling or compressor performance problems. Check refrigerant level, compressor clutch, pressure sensors, condenser, expansion device and cooling fans and repair faulty components.
P1544	A/C Refrigerant Condition Very Low	Check the A/C refrigerant charge and inspect the system for leaks. Verify low- and high-side pressures and inspect hoses, connections, compressor and condenser for refrigerant loss before recharging the system.
P1545	Air Conditioning (A/C) Clutch Relay Control Circuit	Inspect the A/C compressor clutch relay control circuit for damaged wiring, poor connections or incorrect control voltage. Check the relay, fuse, compressor clutch and control signal and repair or replace faulty components.
P1546	A/C Clutch Status Circuit Low Voltage	Inspect the A/C clutch status circuit for low voltage, damaged wiring or poor connections. Check the clutch relay, compressor clutch, power supply and feedback signal and repair or replace faulty components.
P1547	A/C System Performance Degraded	Inspect the A/C system for degraded cooling performance. Check refrigerant charge, compressor operation, condenser airflow, pressure sensors and expansion device and repair any fault affecting system performance.
P1548	A/C Recirculation Circuit	Inspect the A/C recirculation circuit for damaged wiring, poor connections or actuator faults. Check the recirculation flap actuator, control signal and mechanical operation and repair or replace faulty components.
P1551	Throttle Valve Rest Position not Reached During Learn	Inspect the throttle valve for sticking, carbon buildup or mechanical obstruction. Check the throttle actuator, position sensor, wiring and power supply and perform the specified throttle relearn procedure.
P1554	Cruise Control Feedback Circuit	Inspect the cruise control feedback circuit for damaged wiring, poor connections or incorrect feedback signals. Check the cruise control servo, sensors and control module and repair or replace faulty components.
P1555	Electronic Variable Orifice Output	Inspect the electronic variable orifice output circuit for damaged wiring, poor connections or incorrect control voltage. Check the actuator and control signal and replace the faulty component if necessary.
P1558	Cruise Control Servo Indicates Low	Inspect the cruise control servo circuit for a low signal. Check servo wiring, power supply, ground and control signals and repair or replace the servo if defective.
P1559	Cruise Control Power Management Mode	Inspect the cruise control power management system for conditions causing reduced or disabled operation. Check battery voltage, power supply, related circuits and control module data and correct the underlying fault.
P1560	Transaxle not in Drive – Cruise Control Disabled	Check the transmission range signal and verify that the transaxle is in Drive when cruise control is requested. Inspect the range switch, wiring and related control signals and repair any incorrect gear-position information.
P1561	Cruise Vent Solenoid	Inspect the cruise vent solenoid, wiring and vacuum lines for damage or leaks. Check solenoid operation, power supply and control signal and replace the solenoid if defective.
P1562	Cruise Vacuum Solenoid	Inspect the cruise vacuum solenoid and vacuum hoses for leaks, blockage or damage. Check solenoid resistance, power supply and control signal and replace the solenoid if necessary.
P1563	Cruise Vehicle Speed/Set Speed Difference Too High	Compare actual vehicle speed with the cruise-control set speed. Check the vehicle speed sensor, cruise servo and related control signals and repair any condition causing excessive speed deviation.
P1564	Vehicle Acceleration Too High – Cruise Control Disabled	Check for abnormal vehicle acceleration while cruise control is active. Inspect the throttle actuator, cruise servo, vehicle speed signal and related control systems and correct the cause before re-enabling cruise control.
P1565	Cruise Servo Position Sensor	Inspect the cruise servo position sensor circuit for incorrect or unstable readings. Check sensor power, ground, signal and mechanical servo movement and replace the sensor or servo if defective.
P1566	Engine RPM Too High – Cruise Control Disabled	Check engine RPM and investigate conditions causing excessive engine speed while cruise control is active. Inspect throttle control, transmission operation and engine speed signals and repair the underlying fault.
P1567	Active Banking Control Active – Cruise Control Disabled	Check the active banking control and traction-related systems for stored faults. Inspect wheel speed sensors, ABS/traction control operation and communication with the PCM and repair related faults before restoring cruise control.
P1568	Cruise Servo Stroke Greater than Commanded in Cruise	Inspect the cruise servo for excessive movement compared with the commanded position. Check servo operation, throttle linkage, position sensor and control signals and repair or replace faulty components.
P1569	Cruise Servo Stroke High While not in Cruise	Inspect the cruise servo for unintended movement while cruise control is inactive. Check the servo, wiring, vacuum system and control signals for sticking or unwanted activation and repair the fault.
P1570	Traction Control Active – Cruise Control Disabled	Check the traction control system for active faults or intervention. Inspect ABS/traction control sensors, wheel speed signals and module communication and repair related faults before re-enabling cruise control.
P1571	Traction Control Torque Request Circuit	Inspect the traction control torque request circuit for damaged wiring, poor connections or incorrect control signals. Check communication between the traction control and engine control modules and repair the circuit as necessary.
P1572	ASR Active Circuit Low Too Long	Inspect the ASR circuit for a low signal that remains active too long. Check traction control switches, wiring, sensors and module communication and repair or replace faulty components.
P1573	PCM/EBTCM Serial Data Circuit	Inspect the serial data communication circuit between the PCM and EBTCM. Check communication wiring, connectors, power and grounds and diagnose related ABS/traction control module faults.
P1574	Stoplamp Switch Circuit	Inspect the stoplamp switch circuit for incorrect operation, damaged wiring or poor connections. Verify brake light operation and switch signals and replace or adjust the switch if necessary.
P1575	Extended Travel Brake Switch Circuit	Inspect the extended-travel brake switch circuit for incorrect operation or excessive brake pedal travel. Check the switch, wiring and brake system adjustment and repair or replace faulty components.
P1576	BBV Sensor Circuit High Voltage	Inspect the BBV sensor circuit for high voltage, shorts to voltage or damaged wiring. Check sensor power, ground and signal and replace the sensor if the voltage remains above specification.
P1577	BBV Sensor Circuit Low Voltage	Inspect the BBV sensor circuit for low voltage, shorts to ground or poor connections. Check sensor power, ground and signal and replace the sensor if the voltage remains below specification.
P1578	BBV Sensor Circuit Low Vacuum	Inspect the BBV vacuum system for insufficient vacuum, leaks or damaged hoses. Check the vacuum source, sensor, valve and related connections and repair or replace faulty components.
P1579	P/N to D/R at High Throttle Angle – Power Reduction Mode Active	Check throttle angle and engine RPM during transmission engagement. Inspect the throttle system, transmission range switch and control signals and correct the condition causing power reduction mode to activate.
P1580	Cruise Move Circuit Low Voltage	Inspect the cruise move circuit for low voltage, damaged wiring or poor connections. Check the cruise control actuator, power supply, ground and control signal and repair or replace faulty components.
P1581	Cruise Move Circuit High Voltage	Inspect the cruise move circuit for high voltage or a short to voltage. Check the actuator, wiring, connectors and control signal and repair or replace faulty components.
P1582	Cruise Direction Circuit Low Voltage	Inspect the cruise direction circuit for low voltage, damaged wiring or poor connections. Check the cruise control switch, power supply, ground and control signal and repair or replace faulty components.
P1583	Cruise Direction CircuitHigh Voltage	Inspect the cruise direction circuit for high voltage or a short to voltage. Check the cruise control switch, wiring, connectors and control signal and repair or replace faulty components.
P1584	Cruise Control Disabled	Check the conditions that caused cruise control to be disabled. Inspect brake and clutch switches, vehicle speed signal, traction control, engine/transmission faults and cruise control inputs and correct the related fault.
P1585	Cruise Control Inhibit Output Circuit	Inspect the cruise control inhibit output circuit for damaged wiring, poor connections or an incorrect control signal. Check the PCM output and related cruise control circuits and repair or replace faulty components.
P1586	Cruise Control Brake Switch 2 Circuit	Inspect Cruise Control Brake Switch 2 circuit for incorrect operation, damaged wiring or poor connections. Verify switch operation and signal changes during brake pedal application and replace the switch if defective.
P1587	Cruise Control Clutch Control Circuit Low	Inspect the cruise control clutch control circuit for low voltage, damaged wiring or poor connections. Check the clutch switch/actuator, power supply and control signal and repair or replace faulty components.
P1588	Cruise Control Clutch Control Circuit High	Inspect the cruise control clutch control circuit for high voltage or a short to voltage. Check the clutch switch/actuator, wiring, connectors and control signal and repair or replace faulty components.
P1599	Engine Stall or Near Stall Detected	Check the engine for conditions that may cause stalling or near-stalling. Inspect fuel pressure, ignition, air intake, idle control, crankshaft/camshaft signals and engine control data and repair the underlying fault.
P1600	TCM Internal Watchdog Operation	Inspect the TCM for an internal watchdog or processor fault. Check TCM power supply, ground, communication circuits and related voltage conditions and replace or reprogram the TCM if the internal fault persists.
P1601	Serial Comm. Problem With Device 1	Inspect the serial communication circuit with Device 1 for communication loss or errors. Check wiring, connectors, power and ground and diagnose the affected control module.
P1602	Knock Sensor (KS) Module Performance	Inspect the knock sensor module for performance problems. Check knock sensor operation, wiring, connectors, power supply and signal and replace the sensor or module if defective.
P1603	Loss of SDM Serial Data	Inspect the serial data communication circuit with the SDM for loss of communication. Check network wiring, connectors, power and ground and diagnose the SDM and related modules for communication faults.
P1604	Loss of IPC Serial Data	Inspect the serial data communication circuit with the IPC for loss of communication. Check network wiring, connectors, power and ground and diagnose the instrument panel cluster and related modules.
P1605	Loss of HVAC Serial Data	Inspect the serial data communication circuit with the HVAC module for loss of communication. Check network wiring, connectors, power and ground and diagnose the HVAC module for communication faults.
P1606	Serial Communication Problem With Device 6	Inspect the serial communication circuit with Device 6 for communication errors. Check wiring, connectors, power and ground and identify the affected control module before replacing components.
P1607	Serial Communication Problem With Device 7	Inspect the serial communication circuit with Device 7 for communication errors. Check wiring, connectors, power and ground and diagnose the affected control module.
P1608	Serial Communication Problem With Device 8	Inspect the serial communication circuit with Device 8 for communication errors. Check wiring, connectors, power and ground and diagnose the affected control module.
P1609	Loss of TCS Serial Data	Inspect the serial data communication circuit with the TCS module for loss of communication. Check CAN/network wiring, connectors, power and ground and diagnose the traction control module.
P1610	Loss of PZM Serial Data	Inspect the serial data communication circuit with the PZM module. Check network wiring, connectors, power and ground and diagnose the PZM module and related communication circuits.
P1611	Loss of CVRTD Serial Data	Inspect the serial data communication circuit with the CVRTD module. Check network wiring, connectors, power and ground and diagnose the affected module for communication faults.
P1612	Loss of IPM Serial Data	Inspect the serial data communication circuit with the IPM module. Check network wiring, connectors, power and ground and diagnose the IPM module and related communication circuits.
P1613	Loss of DIM Serial Data	Inspect the serial data communication circuit with the DIM module. Check network wiring, connectors, power and ground and diagnose the DIM module for communication faults.
P1614	Loss of RIM Serial Data	Inspect the serial data communication circuit with the RIM module. Check network wiring, connectors, power and ground and diagnose the RIM module and related network circuits.
P1615	Loss of VTD Serial Data	Inspect the serial data communication circuit with the VTD module. Check network wiring, connectors, power and ground and diagnose the vehicle theft deterrent module for communication faults.
P1617	Engine Oil Level Switch Circuit	Inspect the engine oil level switch circuit for incorrect operation, damaged wiring or poor connections. Check oil level, switch signal, power and ground and replace the switch if defective.
P1619	Engine Oil life Monitor Reset Circuit	Inspect the engine oil life monitor reset circuit for an incorrect reset signal. Check the reset switch, wiring and control module input and perform the specified oil-life reset procedure after service.
P1620	Low Coolant Circuit	Check the engine coolant level and inspect the low-coolant circuit for an open, short or poor connection. Verify the coolant level sensor, wiring and control signal and repair or replace faulty components.
P1621	Control Module Long Term memory Performance	Inspect the control module long-term memory for performance or data-retention problems. Check module power supply, ground and battery voltage stability and reprogram or replace the control module if the fault persists.
P1622	Cylinder Select	Inspect the cylinder selection/control system for incorrect configuration or signal. Check related wiring, control module programming and cylinder identification data and correct the configuration as required.
P1623	Transmission Temp Pull-Up Resistor	Inspect the transmission temperature pull-up resistor circuit for an open, short or incorrect resistance. Check wiring, connectors and the transmission temperature sensor circuit and repair or replace faulty components.
P1624	Customer Snapshot Requested – Data Available	Check the stored customer snapshot/freeze-frame data for additional diagnostic information. Review the recorded operating conditions and use the data to identify the fault that triggered the snapshot request.
P1625	TCM System Reset	Inspect the TCM for an unexpected reset. Check battery voltage, TCM power supply, grounds and communication circuits and diagnose any related voltage or communication faults.
P1626	Theft Deterrent Fuel Enable Signal not Received	Inspect the theft deterrent fuel-enable signal circuit for missing communication. Check immobilizer/key recognition, wiring, connectors and communication between the theft deterrent system and PCM.
P1627	A/D Performance	Inspect the control module A/D input circuit for incorrect performance. Check the related sensor or switch, reference voltage, ground, signal wiring and connector condition and repair or replace faulty components.
P1628	ECT Pull-Up Resistor	Inspect the ECT pull-up resistor circuit for an open, short or incorrect resistance. Check the coolant temperature sensor wiring, connector and control module circuit and repair or replace faulty components.
P1629	Theft Deterrent System – Cranking Signal	Inspect the theft deterrent cranking signal circuit. Check the ignition/start signal, immobilizer system, wiring and communication with the PCM and repair the cause of the incorrect or missing cranking signal.
P1630	Theft Deterrent Learn Mode Active	Verify that the theft deterrent system is intentionally in learn mode. If the condition is unexpected, inspect immobilizer/key programming, related wiring and control module communication and complete the required learning procedure.
P1631	Theft Deterrent Start Enable Signal not Correct	Inspect the theft deterrent start-enable signal for an incorrect state. Check key recognition, immobilizer operation, wiring, connectors and communication with the PCM and correct the cause of the invalid signal.
P1632	Theft Deterrent Fuel Disable Signal Received	Inspect the theft deterrent system for a fuel-disable command. Check immobilizer status, key recognition, theft-deterrent communication and related wiring and diagnose the cause of the fuel-disable signal.
P1633	Ignition 0 Switch Circuit	Inspect the Ignition 0 switch circuit for incorrect voltage or an intermittent signal. Check the ignition switch, wiring, connectors, fuses and control module input and repair or replace faulty components.
P1634	Ignition 1 Switch Circuit	Inspect the Ignition 1 switch circuit for incorrect voltage or an intermittent signal. Check the ignition switch, wiring, connectors, fuses and control module input and repair or replace faulty components.
P1635	5 Volt Reference Circuit	Inspect the 5-volt reference circuit for an open, short to ground or short to voltage. Check all sensors sharing the reference circuit and isolate the component causing the abnormal voltage before replacing parts.
P1636	PCM Stack Overrun	Inspect the PCM for an internal stack overrun or processor fault. Check PCM power supply, ground, battery voltage stability and related communication faults and reprogram or replace the PCM if the fault persists.
P1637	Generator L-Terminal Circuit	Inspect the generator L-terminal circuit for incorrect voltage or control signal. Check alternator wiring, connectors, charging system operation and PCM control and repair or replace faulty components.
P1638	Generator F-Terminal Circuit	Inspect the generator F-terminal circuit for incorrect voltage or control signal. Check alternator wiring, connectors, field-control circuit and charging system operation and repair or replace faulty components.
P1639	5 Volt Reference 2 Circuit	Inspect the 5-volt reference 2 circuit for an open, short to ground or short to voltage. Check all sensors supplied by this reference and isolate the component causing the abnormal voltage.
P1640	Driver-1-Input High Voltage	Inspect Driver 1 input circuit for excessive voltage or a short to voltage. Check the related input device, wiring, connector and control module input and repair the circuit as necessary.
P1641	Malfunction Indicator Lamp (MIL) Control Circuit	Inspect the Malfunction Indicator Lamp (MIL) control circuit for an open, short or incorrect voltage. Check the instrument cluster/MIL, wiring and PCM output and repair or replace faulty components.
P1642	Vehicle Speed Output Circuit	Inspect the vehicle speed output circuit for an incorrect or missing signal. Check the vehicle speed sensor, control module output, wiring and connectors and repair the circuit as necessary.
P1643	Engine Speed Output Circuit	Inspect the engine speed output circuit for an incorrect or missing RPM signal. Check the PCM output, wiring, connectors and receiving module and repair any signal or communication fault.
P1644	Traction Control Delivered Torque Output Circuit	Inspect the traction control delivered-torque output circuit for an incorrect signal. Check communication between the PCM and traction control system and inspect wiring, connectors and related module outputs.
P1645	Evaporative Emission (EVAP) Vent Solenoid Contorl Circuit	Inspect the EVAP vent solenoid control circuit for an open, short or poor connection. Check the vent solenoid, wiring, connector, power supply and control signal and replace the solenoid if defective.
P1646	Evaporative Emission (EVAP) Vent Solenoid Control Circuit	Inspect the EVAP vent solenoid control circuit for damaged wiring, poor connections or an incorrect control signal. Check solenoid resistance, power supply and PCM control and repair or replace faulty components.
P1647	Driver 1 Line 7	Inspect Driver 1 Line 7 for an open, short or incorrect voltage. Check the connected actuator/device, wiring, connector and control module output and repair or replace the faulty component.
P1650	Control Module Output B Circuit	Inspect Control Module Output B circuit for an open, short or incorrect control signal. Check the connected actuator, wiring, connectors, power supply and control module output and repair as necessary.
P1651	Fan 1 Relay Control Circuit	Inspect Fan 1 relay control circuit for an open, short or incorrect voltage. Check the cooling fan relay, fuse, wiring, fan motor and control signal and repair or replace faulty components.
P1652	Powertrain Induced Chassis Pitch Output Circuit	Inspect the powertrain-induced chassis pitch output circuit for an incorrect signal. Check related engine/transmission control outputs, wiring and connectors and diagnose the affected control system.
P1653	Oil Level Lamp Control Circuit	Inspect the oil level lamp control circuit for an open, short or incorrect signal. Check the oil level sensor, warning lamp, wiring and control module output and repair or replace faulty components.
P1654	Cruise Control Inhibit Output Circuit	Inspect the cruise control inhibit output circuit for an incorrect signal. Check the PCM output, cruise control system inputs, wiring and connectors and repair the cause of the unwanted inhibit signal.
P1655	EVAP Purge Solenoid Control Circuit	Inspect the EVAP purge solenoid control circuit for an open, short or incorrect voltage. Check the purge solenoid, wiring, connector, power supply and PCM control signal and replace the solenoid if defective.
P1656	Driver 2 Line 6	Inspect Driver 2 Line 6 for an open circuit, short circuit or incorrect voltage. Check the connected actuator/device, wiring, connectors and control module output and repair or replace faulty components.
P1657	1-4 Upshift Solenoid Control Circuit	Inspect the 1-4 upshift solenoid control circuit for an open, short or incorrect control signal. Check the solenoid, wiring, connector and power supply and replace the solenoid if defective.
P1658	Starter Enable Relay Control Circuit	Inspect the starter enable relay control circuit for an open, short or incorrect voltage. Check the starter relay, fuse, ignition/start signal, wiring and PCM control output and repair or replace faulty components.
P1660	Cooling Fan Control Circuits	Inspect the cooling fan control circuits for electrical faults. Check fan relays, fuses, motors, wiring, connectors and control signals and repair or replace faulty components.
P1661	MIL Control Circuit	Inspect the MIL control circuit for an open, short or incorrect voltage. Check the malfunction indicator lamp, instrument cluster, wiring and PCM output and repair the circuit as necessary.
P1662	Cruise Lamp Control Circuit	Inspect the cruise control lamp control circuit for an open, short or incorrect signal. Check the cruise indicator lamp, instrument cluster, wiring and PCM control output and repair or replace faulty components.
P1663	Oil life Lamp Control Circuit	Inspect the oil life lamp control circuit for an open, short or incorrect signal. Check the warning lamp, instrument cluster, wiring and control module output and repair the circuit as necessary.
P1664	1-4 Upshift Lamp Control Circuit	Inspect the 1-4 upshift lamp control circuit for an open, short or incorrect voltage. Check the indicator lamp, wiring, connectors and control module output and repair or replace faulty components.
P1665	Driver 3 Line 5	Inspect Driver 3 Line 5 for an open, short or incorrect voltage. Check the connected device, wiring, connector and control module output and repair or replace faulty components.
P1666	Driver 3 Line 6	Inspect Driver 3 Line 6 for an open, short or incorrect voltage. Check the connected device, wiring, connector and control module output and repair or replace faulty components.
P1667	Reverse Inhibit Solenoid Control Circuit	Inspect the reverse inhibit solenoid control circuit for an open, short or incorrect control signal. Check the solenoid, wiring, connector, power supply and transmission control operation and repair or replace faulty components.
P1669	ABS Unit Expected	Verify that the vehicle configuration requires an ABS unit and check for loss of communication with the ABS module. Inspect ABS power, ground, network wiring and connectors and diagnose the ABS module for communication faults.
P1670	Driver 4	Inspect Driver 4 circuit for an open, short or incorrect voltage. Check the connected actuator/device, wiring, connector and control module output and repair or replace faulty components.
P1671	Driver 4 Line 1	Inspect Driver 4 Line 1 for an open, short or incorrect voltage. Check the connected device, wiring, connectors and control module output and repair the circuit as necessary.
P1672	Low Engine Oil Level Lamp Control Circuit	Inspect the low engine oil level lamp control circuit for an open, short or incorrect signal. Check the oil level sensor, warning lamp, wiring and control module output and repair or replace faulty components.
P1673	Engine Hot Lamp Control Circuit	Inspect the engine hot lamp control circuit for an open, short or incorrect signal. Check the warning lamp, coolant temperature input, wiring and control module output and repair the circuit as necessary.
P1674	Tachometer Control Circuit	Inspect the tachometer control circuit for an incorrect or missing engine RPM signal. Check the PCM output, instrument cluster, wiring and connectors and repair any signal or communication fault.
P1675	EVAP Vent Solenoid Control Circuit	Inspect the EVAP vent solenoid control circuit for an open, short or incorrect voltage. Check the vent solenoid, wiring, connector, power supply and PCM control signal and replace the solenoid if defective.
P1676	Driver 4 Line 6	Inspect Driver 4 Line 6 for an open, short or incorrect voltage. Check the connected device, wiring, connectors and control module output and repair or replace faulty components.
P1677	Driver 4 Line 7	Inspect Driver 4 Line 7 for an open, short or incorrect voltage. Check the connected device, wiring, connectors and control module output and repair or replace faulty components.
P1680	Driver 5 (ECU Malfunction)	Inspect Driver 5 for an internal ECU malfunction or output driver fault. Check ECU power supply, grounds, wiring and connected loads and reprogram or replace the ECU if the internal fault persists.
P1681	Driver 5 Line 1	Inspect Driver 5 Line 1 for an open, short or incorrect voltage. Check the connected actuator/device, wiring, connectors and ECU output and repair or replace faulty components.
P1682	Driver 5 Line 2	Inspect Driver 5 Line 2 for an open, short or incorrect voltage. Check the connected actuator/device, wiring, connectors and ECU output and repair or replace faulty components.
P1683	Driver 5 Line 3	Inspect Driver 5 Line 3 for an open, short or incorrect voltage. Check the connected actuator/device, wiring, connectors and ECU output and repair or replace faulty components.
P1684	Driver 5 Line 4	Inspect Driver 5 Line 4 for an open, short or incorrect voltage. Check the connected actuator/device, wiring, connectors and ECU output and repair or replace faulty components.
P1685	Driver 5 Line 5	Inspect Driver 5 Line 5 for an open, short or incorrect voltage. Check the connected actuator/device, wiring, connectors and ECU output and repair or replace faulty components.
P1686	Driver 5 Line 6	Inspect Driver 5 Line 6 for an open, short or incorrect voltage. Check the connected actuator/device, wiring, connectors and ECU output and repair or replace faulty components.
P1687	Driver 5 Line 7	Inspect Driver 5 Line 7 for an open, short or incorrect voltage. Check the connected actuator/device, wiring, connectors and ECU output and repair or replace faulty components.
P1689	Delivered Torque Circuit Fault	Inspect the delivered torque circuit for an incorrect torque signal between control modules. Check CAN/network communication, wiring, connectors and torque data and repair the related control system.
P1690	ECM Loop Overrun	Inspect the ECM for an internal control-loop overrun or processor fault. Check ECM power supply, ground, battery voltage stability and related communication circuits and reprogram or replace the ECM if the fault persists.
P1691	Coolant Gage Circuit Low Voltage	Inspect the coolant gauge circuit for low voltage, damaged wiring or poor connections. Check the coolant temperature sender, gauge, power supply and ground and repair or replace faulty components.
P1692	Coolant Gage Circuit High Voltage	Inspect the coolant gauge circuit for high voltage or a short to voltage. Check the temperature sender, wiring, connectors and gauge signal and repair or replace faulty components.
P1693	Tachometer Circuit Low Voltage	Inspect the tachometer circuit for low voltage, an open circuit or poor connections. Check the engine RPM signal, instrument cluster, wiring and control module output and repair the circuit as necessary.
P1694	Tachometer Circuit High Voltage	Inspect the tachometer circuit for high voltage or a short to voltage. Check the RPM signal, instrument cluster, wiring and control module output and repair or replace faulty components.
P1695	Remote Keyless Entry Circuit Low	Inspect the Remote Keyless Entry circuit for low voltage or an open/poor connection. Check the keyless entry module, wiring, power supply and ground and repair or replace faulty components.
P1696	Remote Keyless Entry Voltage High	Inspect the Remote Keyless Entry circuit for high voltage or a short to voltage. Check the keyless entry module, wiring, connectors and power supply and repair or replace faulty components.
P1700	Transmission Control Module (TCM) Requested MIL Illumination	Inspect the transmission control system for stored faults causing the TCM to request MIL illumination. Diagnose all TCM trouble codes and repair the underlying transmission fault before clearing the MIL request.
P1701	Trans. MIL Request Circuit	Inspect the transmission MIL request circuit for an open, short or incorrect control signal. Check TCM and PCM communication, wiring, connectors and control outputs and repair the circuit as necessary.
P1705	P/N Signal Output Circuit	Inspect the Park/Neutral signal output circuit for an incorrect or missing signal. Check the transmission range switch, wiring, connectors and TCM output and repair or adjust the range switch if necessary.
P1719	Incorrect Shifting Detected (TCM)	Inspect the transmission for incorrect shifting and check transmission fluid level and condition. Use scan data to compare commanded and actual gears and inspect shift solenoids, sensors and hydraulic/mechanical components.
P1740	Torque Reduction Signal Circuit	Inspect the torque reduction signal circuit between the engine and transmission control systems. Check wiring, connectors and CAN/communication signals and verify that the ECM and TCM exchange the correct torque-reduction data.
P1743	TP Signal from ECM	Inspect the throttle position signal received from the ECM. Check the throttle position sensor, wiring, connectors and communication between the ECM and TCM and repair any incorrect or missing signal.
P1760	TCM Supply Voltage Interrupted	Inspect the TCM power supply for an intermittent voltage interruption. Check battery voltage, fuses, relays, power and ground connections and inspect the TCM connector for loose or corroded terminals.
P1779	Engine Torque Delivered to TCM Signal	Inspect the engine torque signal delivered to the TCM. Check ECM-to-TCM communication, CAN wiring, connectors and torque data and repair any communication or signal fault.
P1780	Park/Neutral Position [PNP] Switch Circuit	Inspect the Park/Neutral Position (PNP) switch circuit for an incorrect signal. Check the range switch, wiring, connectors and adjustment and verify that the indicated gear matches the selected position.
P1781	Engine Torque Signal Circuit	Inspect the engine torque signal circuit for an incorrect or missing signal. Check ECM/TCM communication, wiring, connectors and torque data and repair the related circuit or control module fault.
P1790	Transmission Control Module Checksum	Inspect the TCM for checksum or memory integrity errors. Check TCM power supply, ground and communication circuits and reprogram or replace the TCM if the checksum fault persists.
P1791	Transmission Control Module Loop	Inspect the TCM control loop for an internal performance fault. Check TCM power, ground and communication circuits and reprogram or replace the TCM if the fault remains after external circuits are verified.
P1791	Throttle/Pedal Position Signal (2000+)	Inspect the throttle/pedal position signal for an incorrect or missing value. Check the accelerator pedal/throttle position sensors, wiring, connectors and ECM-to-TCM communication and repair the signal fault.
P1792	Transmission Control Module Reprogrammable memory	Inspect the TCM programmable memory for data or programming errors. Verify TCM power and ground, check for software updates and reprogram the module using the correct calibration if necessary.
P1792	ECM to TCM Engine Coolant Signal	Inspect the engine coolant temperature signal sent from the ECM to the TCM. Check the ECT sensor, wiring, connectors and ECM-to-TCM communication and repair any incorrect temperature signal.
P1793	Transmission Control Module Stack Overrun	Inspect the TCM for an internal stack overrun or processor fault. Check TCM power supply, ground, battery voltage stability and communication circuits and reprogram or replace the TCM if the fault persists.
P1793	Wheel Speed Signal (2000+)	Inspect the wheel speed signal received by the transmission control system. Check wheel speed sensors, wiring, connectors and ABS/TCM communication and repair any missing or incorrect speed signal.
P1795	CAN Bus – Throttle Body Position	Inspect the CAN bus communication related to throttle body position. Check throttle position data, CAN wiring, connectors, power and grounds and diagnose the ECM/TCM and throttle body for communication faults.
P1800	TCM Power Relay Control Circuit	Inspect the TCM power relay control circuit for an open, short or incorrect voltage. Check the relay, fuse, wiring, connectors, power supply and TCM control signal and repair or replace faulty components.
P1801	Performance Selector Switch Failure	Inspect the performance selector switch for incorrect operation or an invalid signal. Check the switch, wiring, connectors and control module input and replace or adjust the switch if necessary.
P1804	Ground Control Relay	Inspect the ground control relay circuit for an open, short or incorrect control signal. Check the relay, wiring, ground connections and control module output and repair or replace faulty components.
P1810	TFP Valve Position Switch Circuit	Inspect the Transmission Fluid Pressure (TFP) valve position switch circuit for an incorrect signal. Check the TFP switch/valve, transmission fluid condition, wiring and connectors and repair or replace faulty components.
P1811	Maximum Adapt and Long Shift	Check transmission fluid level and condition and inspect for hydraulic or mechanical problems causing excessive shift time or maximum adaptation. Check shift solenoids, pressure control, valve body and transmission wear and repair as necessary.
P1812	Transmission Over Temperature Condition	Check transmission fluid level and condition and inspect the transmission cooling system. Verify fluid temperature sensor operation, cooler flow and related wiring and repair the cause of excessive transmission temperature.
P1813	Torque Control	Inspect the torque control system for incorrect torque-reduction or torque-management signals. Check ECM/TCM communication, wiring, connectors and related transmission control inputs and repair the underlying fault.
P1814	Torque Converter Overstressed	Inspect the torque converter for signs of excessive load or slip. Check transmission fluid level and condition, converter clutch operation, line pressure and related solenoids and repair the cause of the overstress condition.
P1815	Transmission Range Switch – Start in Wrong Range	Inspect the transmission range switch and verify that the transmission is in the correct range during engine start. Check the range switch, wiring, connectors and adjustment and repair or replace faulty components.
P1816	TFP Valve Position Sw. – Park/Neu. With Drive Ratio	Compare the TFP valve position switch signal with the commanded transmission range. Inspect the valve position switch, wiring, connectors, transmission fluid and valve body and repair any incorrect position signal.
P1817	TFP Valve Position Sw. – Reverse With Drive Ratio	Compare the TFP valve position switch signal with the commanded Reverse range. Inspect the valve position switch, wiring, connectors, transmission fluid and valve body and repair any incorrect range indication.
P1818	TFP Valve Position Sw. – Drive Without Drive Ratio	Compare the TFP valve position switch signal with the commanded Drive range. Inspect the switch, transmission fluid, valve body, wiring and connectors and repair any mismatch between the indicated and commanded range.
P1819	Internal Mode Switch – No StartWrong Range	Inspect the internal mode switch for an incorrect range or no-start condition. Check switch operation, wiring, connectors and transmission range signals and repair or replace faulty components.
P1820	Internal Mode Switch Circuit A Low	Inspect Internal Mode Switch Circuit A for low voltage, an open circuit or a short to ground. Check the switch, wiring, connectors, power supply and control module input and repair or replace faulty components.
P1822	Internal Mode Switch Circuit B High	Inspect Internal Mode Switch Circuit B for high voltage or a short to voltage. Check the switch, wiring, connectors and control module input and repair or replace faulty components.
P1823	Internal Mode Switch Circuit P Low	Inspect Internal Mode Switch Circuit P for low voltage, an open circuit or a short to ground. Check switch operation, wiring, connectors and power supply and repair or replace faulty components.
P1825	Internal Mode Switch – Invalid Range	Inspect the internal mode switch for an invalid transmission range signal. Check switch adjustment, wiring, connectors and transmission range data and repair or replace the faulty component.
P1826	Internal Mode Switch Circuit C – High	Inspect Internal Mode Switch Circuit C for high voltage or a short to voltage. Check the switch, wiring, connectors and control module input and repair or replace faulty components.
P1831	Pressure Control (PC) Solenoid Power Circuit – Low Voltage	Inspect the pressure control solenoid power circuit for low voltage. Check transmission fuses, wiring, connectors, power supply and solenoid resistance and repair or replace faulty components.
P1832	Pressure Control (PC)/Shift Lock Solenoid Control Circuit High Voltage	Inspect the pressure control/shift lock solenoid control circuit for high voltage or a short to voltage. Check the solenoid, wiring, connectors and TCM control signal and repair or replace faulty components.
P1833	A/T Solenoids Power Circuit – Low Voltage	Inspect the A/T solenoid power circuit for low voltage. Check transmission power supply, fuses, wiring, connectors and solenoid circuits and repair any voltage drop or connection fault.
P1834	Torque Converter Clutch (TCC)/Shift Solenoid (SS) Control Circuit High Voltage	Inspect the TCC/shift solenoid control circuit for high voltage or a short to voltage. Check the solenoid, wiring, connectors and TCM control signal and repair or replace faulty components.
P1835	Kick-Down Switch Circuit	Inspect the kick-down switch circuit for an incorrect signal. Check switch operation, wiring, connectors and control module input and repair or replace the switch if defective.
P1836	Kick-Down Switch Failed Open	Inspect the kick-down switch circuit for an open circuit. Check the switch, wiring, connectors and power supply and repair the open circuit or replace the switch if necessary.
P1837	Kick-Down Switch Failed short	Inspect the kick-down switch circuit for a short circuit. Check the switch, wiring and connectors for a short to ground or voltage and repair or replace faulty components.
P1842	1-2 Shift Solenoid Circuit Low Voltage	Inspect the 1-2 shift solenoid circuit for low voltage, an open circuit or a short to ground. Check the solenoid, wiring, connectors and power supply and replace the solenoid if defective.
P1843	1-2 Shift Solenoid Circuit High Voltage	Inspect the 1-2 shift solenoid circuit for high voltage or a short to voltage. Check the solenoid, wiring, connectors and TCM control signal and repair or replace faulty components.
P1844	Torque Reduction Signal Circuit Desired By TCM	Inspect the torque reduction signal requested by the TCM. Check ECM/TCM communication, CAN wiring, connectors and torque-management data and repair any communication or signal fault.
P1845	2-3 Shift Solenoid Circuit Low Voltage	Inspect the 2-3 shift solenoid circuit for low voltage, an open circuit or a short to ground. Check the solenoid, wiring, connectors and power supply and replace the solenoid if defective.
P1847	2-3 Shift Solenoid Circuit High Voltage	Inspect the 2-3 shift solenoid circuit for high voltage or a short to voltage. Check the solenoid, wiring, connectors and TCM control signal and repair or replace faulty components.
P1850	Brake Band Apply Solenoid Circuit	Inspect the brake band apply solenoid circuit for an open, short or incorrect control signal. Check the solenoid, wiring, connectors and transmission fluid condition and repair or replace faulty components.
P1851	Brake Band Apply Solenoid Performance	Inspect the brake band apply solenoid for incorrect performance or sticking. Check solenoid operation, hydraulic pressure, transmission fluid and valve body and repair or replace faulty components.
P1852	Brake Band Apply SolenoidLow Voltage	Inspect the brake band apply solenoid circuit for low voltage, an open circuit or a short to ground. Check wiring, connectors, power supply and solenoid resistance and replace the solenoid if defective.
P1853	Brake Band Apply Solenoid High Voltage	Inspect the brake band apply solenoid circuit for high voltage or a short to voltage. Check the solenoid, wiring, connectors and TCM control signal and repair or replace faulty components.
P1860	TCC PWM Solenoid Circuit Electrical	Inspect the TCC PWM solenoid electrical circuit for an open, short or incorrect resistance. Check the solenoid, transmission wiring, connectors, power supply and TCM control signal and replace the solenoid if defective.
P1864	Torque Converter Clutch Circuit	Inspect the torque converter clutch circuit for electrical or mechanical faults. Check TCC solenoid operation, transmission fluid, wiring, connectors and converter clutch engagement and repair or replace faulty components.
P1865	4-5 Shift Solenoid (SS) Valve Control Circuit High Voltage	Inspect the 4-5 shift solenoid valve control circuit for high voltage or a short to voltage. Check the solenoid, wiring, connectors and TCM control signal and repair or replace faulty components.
P1866	Torque Converter Clutch (TCC) Pulse Width Modulation (PWM) Solenoid Control Circuit Low Voltage	Inspect the TCC PWM solenoid control circuit for low voltage, an open circuit or a short to ground. Check the solenoid, wiring, connectors and power supply and repair or replace faulty components.
P1867	Torque Converter Clutch (TCC) Pulse Width Modulation (PWM) Solenoid Control Circuit High Voltage	Inspect the TCC PWM solenoid control circuit for high voltage or a short to voltage. Check the solenoid, wiring, connectors and TCM control signal and repair or replace faulty components.
P1868	Transmission Fluid life	Check the transmission fluid level, condition and service history. If the calculated fluid life is low, replace the transmission fluid and filter according to the manufacturer’s service procedure and reset the fluid-life monitor if required.
P1870	Transmission Component Slipping	Check the transmission for excessive component slip. Inspect transmission fluid level and condition, line pressure, TCC operation, shift solenoids and internal transmission components and repair the cause of the slipping.
P1871	Undefined Gear Ratio	Check transmission input and output speed signals and compare the actual gear ratio with the commanded ratio. Inspect shift solenoids, transmission fluid, valve body and internal components and repair any fault affecting gear selection.
P1873	TCC Stator Temp. Switch Circuit Low	Inspect the TCC stator temperature switch circuit for low voltage, an open circuit or a short to ground. Check the switch, wiring, connectors and control module input and repair or replace faulty components.
P1874	TCC Stator Temp. Switch Circuit High	Inspect the TCC stator temperature switch circuit for high voltage or a short to voltage. Check the switch, wiring, connectors and control module input and repair or replace faulty components.
P1875	Low Switch Circuit Electrical	Inspect the low switch circuit for an electrical fault. Check the switch, wiring, connectors, power supply and ground connections and repair or replace faulty components.
P1884	TCC Enable/Shift Light Circuit	Inspect the TCC enable/shift light circuit for an open, short or incorrect control signal. Check the related switch, wiring, connectors and control module output and repair or replace faulty components.
P1886	Shift Timing Solenoid	Inspect the shift timing solenoid for electrical or performance faults. Check solenoid resistance, wiring, connectors, transmission fluid and TCM control signals and repair or replace faulty components.
P1887	TCC Release Switch Circuit	Inspect the TCC release switch circuit for an incorrect signal. Check switch operation, wiring, connectors and control module input and repair or replace the switch if defective.
P1890	ECM Data Input Circuit	Inspect the ECM data input circuit for an incorrect or missing signal. Check ECM/TCM communication, wiring, connectors and related input signals and repair any communication or circuit fault.
P1890	Throttle Position Signal Input	Inspect the throttle position signal input for an incorrect or missing signal. Check the throttle position sensor, wiring, connectors and ECM input and repair or replace faulty components.
P1891	Throttle Position Sensor PWM Signal Low	Inspect the throttle position sensor PWM signal for low voltage or an incorrect duty cycle. Check the sensor, wiring, connectors, reference voltage and ECM input and repair or replace faulty components.
P1892	Throttle Position Sensor PWM Signal High	Inspect the throttle position sensor PWM signal for high voltage or an incorrect duty cycle. Check the sensor, wiring, connectors and ECM input and repair or replace faulty components.
P1893	Engine Torque Signal Low Voltage	Inspect the engine torque signal circuit for low voltage. Check ECM/TCM communication, wiring, connectors and torque signal circuits and repair any open, short or poor connection.
P1894	Engine Torque Signal High Voltage	Inspect the engine torque signal circuit for high voltage. Check ECM/TCM communication, wiring, connectors and torque signal circuits and repair any short to voltage or faulty component.
P1895	TCM to ECM Torque Reduction Circuit	Inspect the TCM-to-ECM torque reduction circuit for an incorrect or missing signal. Check CAN/communication wiring, connectors and torque-reduction data and repair any communication or control fault.
P2008	Intake Manifold Runner Control (IMRC) Solenoid Control Circuit	Inspect the intake manifold runner control (IMRC) solenoid control circuit. Check the solenoid, wiring, connectors, power supply and control signal and repair or replace faulty components.
P2009	Intake Manifold Runner Control (IMRC) Solenoid Control Circuit Low Voltage	Inspect the IMRC solenoid control circuit for low voltage, an open circuit or a short to ground. Check wiring, connectors, power supply and solenoid resistance and repair or replace faulty components.
P2010	Intake Manifold Runner Control (IMRC) Solenoid Control Circuit High Voltage	Inspect the IMRC solenoid control circuit for high voltage or a short to voltage. Check the solenoid, wiring, connectors and ECM control signal and repair or replace faulty components.
P2066	Fuel Level Sensor 2 Performance	Inspect Fuel Level Sensor 2 for an incorrect or out-of-range signal. Check the sensor, fuel tank wiring, connectors and sensor resistance and repair or replace the sensor if necessary.
P2067	Fuel Level Sensor 2 Circuit Low Voltage	Inspect Fuel Level Sensor 2 for low voltage. Check the sensor, wiring, connectors and reference/ground circuits for an open or short to ground and repair or replace faulty components.
P2068	Fuel Level Sensor 2 Circuit High Voltage	Inspect Fuel Level Sensor 2 for high voltage. Check the sensor, wiring, connectors and signal circuit for a short to voltage and repair or replace faulty components.
P2096	Post Catalyst Fuel Trim System Low Limit	Check for an excessively lean post-catalyst fuel condition. Inspect for exhaust leaks, vacuum leaks, fuel pressure problems, injector faults and oxygen sensor operation and repair the underlying cause.
P2097	Post Catalyst Fuel Trim System High Limit	Check for an excessively rich post-catalyst fuel condition. Inspect fuel pressure, injectors, air intake, oxygen sensors and exhaust leaks and repair the cause of the excessive fuel trim.
P2098	Post Catalyst Fuel Trim System Low Limit	Check for a post-catalyst fuel trim condition that is too lean. Inspect exhaust leaks, intake air leaks, fuel delivery and oxygen sensor operation and repair the underlying fault.
P2099	Post Catalyst Fuel Trim System High Limit	Check for a post-catalyst fuel trim condition that is too rich. Inspect fuel pressure, injectors, air intake and oxygen sensor signals and repair the cause of the excessive fuel correction.
P2100	Throttle Actuator Control (TAC) Motor Control Circuit	Inspect the throttle actuator control motor circuit for an open or short circuit. Check the throttle body, actuator motor, wiring, connectors, power supply and ECM control signal and replace the throttle body or actuator if defective.
P2101	Control Module Throttle Actuator Position Performance	Inspect the throttle actuator for incorrect position or performance. Check the throttle body for contamination or binding, inspect the actuator motor, wiring, connectors and power supply, and perform throttle relearn if required. Replace the throttle body/actuator if defective.
P2105	Throttle Actuator Control (TAC) System – Forced Engine Shutdown	Check why the TAC system has commanded a forced engine shutdown. Inspect throttle actuator operation, accelerator pedal signals, wiring, power supply and related DTCs and repair the underlying fault before clearing the code.
P2107	Throttle Actuator Control (TAC) Module Internal Circuit	Inspect the throttle actuator control module for an internal circuit fault. Check the throttle body, wiring, connectors, power and ground circuits and communication with the ECM. Repair or replace the faulty component as necessary.
P2108	Throttle Actuator Control (TAC) Module Performance	Inspect the TAC module and throttle actuator for a performance fault. Check throttle movement, actuator operation, wiring, connectors, power supply and sensor signals and perform the required throttle relearn procedure.
P2119	Throttle Closed Position Performance	Inspect the throttle body for an incorrect closed position. Check for contamination, mechanical binding, damaged wiring or incorrect throttle position signals and perform throttle position relearn after repairs if required.
P2120	Accelerator Pedal Position (APP) Sensor 1 Circuit	Inspect the APP sensor 1 circuit for an open, short or incorrect signal. Check the accelerator pedal sensor, wiring, connectors, reference voltage and ground and repair or replace faulty components.
P2121	Accelerator Pedal Position (APP) Sensor 1 Performance	Inspect APP sensor 1 for an out-of-range or incorrect performance signal. Check sensor operation throughout the pedal travel, wiring, connectors and reference voltage and replace the sensor if defective.
P2122	Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage	Inspect APP sensor 1 for low voltage. Check the signal circuit for an open or short to ground and verify the sensor reference and ground circuits. Repair the wiring or replace the sensor if necessary.
P2123	Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage	Inspect APP sensor 1 for high voltage. Check the signal circuit for a short to voltage and verify the sensor reference, ground and wiring. Repair or replace faulty components.
P2125	Accelerator Pedal Position (APP) Sensor 2 Circuit	Inspect the APP sensor 2 circuit for an open, short or incorrect signal. Check the accelerator pedal sensor, wiring, connectors, reference voltage and ground and repair or replace faulty components.
P2127	Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage	Inspect APP sensor 2 for low voltage. Check the signal circuit for an open or short to ground and verify the reference and ground circuits. Repair the wiring or replace the sensor if defective.
P2128	Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage	Inspect APP sensor 2 for high voltage. Check the signal circuit for a short to voltage and verify the sensor reference and ground circuits. Repair or replace faulty components.
P2135	Throttle Position (TP) Sensor 1-2 Correlation	Check the correlation between TP sensor 1 and TP sensor 2 signals. Inspect the throttle body, sensors, wiring, connectors and reference voltage and replace the throttle body/sensor assembly if the signals do not correlate correctly.
P2138	Accelerator Pedal Position (APP) Sensor 1-2 Correlation	Check the correlation between APP sensor 1 and APP sensor 2 signals. Inspect accelerator pedal sensor operation, wiring, connectors, reference voltage and ground and replace the pedal assembly/sensor if the signals remain inconsistent.
P2176	Minimum Throttle Position not Learned	Perform the minimum throttle position relearn procedure according to the manufacturer’s specifications. Before relearning, inspect the throttle body for contamination, binding, wiring faults or incorrect sensor signals and repair any underlying problem.
P2500	Generator L-Terminal Circuit Low Voltage	Inspect the generator L-terminal circuit for low voltage. Check the alternator, wiring, connectors, charging-system power supply and L-terminal control signal and repair or replace faulty components.
P2501	Generator L-Terminal Circuit High Voltage	Inspect the generator L-terminal circuit for high voltage. Check the alternator control circuit, wiring, connectors and voltage regulation system for a short to voltage or regulator fault and repair as necessary.
P2535	Ignition 1 Switch Circuit High Voltage (PCM)	Inspect the Ignition 1 switch circuit for high voltage. Check the ignition switch, related fuses, wiring, connectors and PCM input for a short to voltage and repair or replace faulty components.
P2610	ECU Malfunction	Inspect the ECU for an internal malfunction or incorrect engine-off timer operation. Check ECU power and ground supplies, communication circuits and related DTCs and reprogram or replace the ECU if the fault persists.
P2763	Short to Voltage in the TCC Solenoid	Inspect the TCC solenoid circuit for a short to voltage. Check the solenoid, transmission wiring, connectors and TCM control circuit and repair or replace the affected component.
P2764	Open or short to Ground in the TCC PWM Solenoid Valve Circuit	Inspect the TCC PWM solenoid valve circuit for an open circuit or short to ground. Check the solenoid, wiring, connectors, power supply and TCM control signal and repair or replace faulty components.
P2A00	HO2S Circuit Closed Loop (CL) Performance Bank 1 Sensor 1 (PCM)	Inspect HO2S Bank 1 Sensor 1 closed-loop performance. Check the oxygen sensor signal and heater operation, intake/exhaust leaks, fuel mixture and wiring and replace the sensor if defective.
P2A01	HO2S Circuit Closed Loop (CL) Performance Bank 1 Sensor 2 (PCM)	Inspect HO2S Bank 1 Sensor 2 closed-loop performance. Check the oxygen sensor signal and heater circuit, exhaust leaks, wiring and connectors and replace the sensor if its response remains outside specification.
P3000	Hacking AWH Data	Inspect the system for unauthorized or abnormal AWH data activity. Check the related control module, communication network, stored DTCs and data integrity and follow the manufacturer’s diagnostic procedure to identify and correct the source of the fault.

Bodywork (C)

Code DTC	Description	Troubleshooting instructions
C0000	Vehicle Speed Information Circuit Malfunction	Check the vehicle speed signal wiring, connectors, sensors, and communication circuit, then repair or replace the faulty component.
C0035	Left Front Wheel Speed Circuit Malfunction	Inspect the left front wheel speed sensor, wiring, connectors, and tone ring, then repair or replace the faulty component.
C0040	Right Front Wheel Speed Circuit Malfunction	Inspect the right front wheel speed sensor, wiring, connectors, and tone ring, then repair or replace the faulty component.
C0041	Right Front Wheel Speed Sensor Circuit Range/Performance (EBCM)	Check the right front wheel speed sensor signal, sensor position, wiring, and tone ring, then repair or replace the faulty component.
C0045	Left Rear Wheel Speed Circuit Malfunction	Inspect the left rear wheel speed sensor, wiring, connectors, and tone ring, then repair or replace the faulty component.
C0046	Left Rear Wheel Speed Sensor Circuit Range/Performance (EBCM)	Check the left rear wheel speed sensor signal, sensor position, wiring, and tone ring, then repair or replace the faulty component.
C0050	Right Rear Wheel Speed Circuit Malfunction	Inspect the right rear wheel speed sensor, wiring, connectors, and tone ring, then repair or replace the faulty component.
C0051	LF Wheel Speed Sensor Circuit Range/Performance (EBCM)	Check the left front wheel speed sensor signal, sensor position, wiring, and tone ring, then repair or replace the faulty component.
C0060	Left Front ABS Solenoid #1 Circuit Malfunction	Check the left front ABS solenoid, wiring, connectors, and electrical resistance, then repair or replace the faulty solenoid.
C0065	Left Front ABS Solenoid #2 Circuit Malfunction	Check the left front ABS solenoid #2, wiring, connectors, and electrical resistance, then repair or replace the faulty solenoid.
C0070	Right Front ABS Solenoid #1 Circuit Malfunction	Check the right front ABS solenoid, wiring, connectors, and electrical resistance, then repair or replace the faulty solenoid.
C0075	B75Right Front ABS Solenoid #2 Circuit Malfunction	Check the right front ABS solenoid #2, wiring, connectors, and electrical resistance, then repair or replace the faulty solenoid.
C0080	Left Rear ABS Solenoid #1 Circuit Malfunction	Check the left rear ABS solenoid, wiring, connectors, and electrical resistance, then repair or replace the faulty solenoid.
C0085	Left Rear ABS Solenoid #2 Circuit Malfunction	Check the left rear ABS solenoid #2, wiring, connectors, and electrical resistance, then repair or replace the faulty solenoid.
C0090	Right Rear ABS Solenoid #1 Circuit Malfunction	Check the right rear ABS solenoid, wiring, connectors, and electrical resistance, then repair or replace the faulty solenoid.
C0095	Right Rear ABS Solenoid #2 Circuit Malfunction	Check the right rear ABS solenoid #2, wiring, connectors, and electrical resistance, then repair or replace the faulty solenoid.
C0110	Pump Motor Circuit Malfunction	Inspect the ABS pump motor, fuse, relay, wiring, connectors, and power supply, then repair or replace the faulty component.
C0121	Valve Relay Circuit Malfunction	Check the ABS valve relay, wiring, connectors, fuse, and power supply, then repair or replace the faulty relay or circuit.
C0128	Low Brake Fluid Circuit Low	Check the brake fluid level and inspect for leaks, then refill with the correct fluid and repair any leakage or faulty level sensor.
C0141	Left TCS Solenoid #1 Circuit Malfunction	Check the left TCS solenoid, wiring, connectors, and electrical resistance, then repair or replace the faulty solenoid.
C0146	Left TCS Solenoid #2 Circuit Malfunction	Check the left TCS solenoid #2, wiring, connectors, and electrical resistance, then repair or replace the faulty solenoid.
C0151	Right TCS Solenoid #1 Circuit Malfunction	Check the right TCS solenoid, wiring, connectors, and electrical resistance, then repair or replace the faulty solenoid.
C0156	Right TCS Solenoid #2 Circuit Malfunction	Check the right TCS solenoid #2, wiring, connectors, and electrical resistance, then repair or replace the faulty solenoid.
C0161	ABS/TCS Brake Switch Circuit Malfunction	Inspect the brake switch, wiring, connectors, and adjustment, then repair or replace the faulty switch or circuit.
C0221	Right Front Wheel Speed Sensor Circuit Open	Check the right front wheel speed sensor wiring and connectors for an open circuit, then restore continuity or replace the sensor.
C0222	Right Front Wheel Speed Signal Missing	Inspect the right front wheel speed sensor, tone ring, wiring, and connectors, then repair or replace the faulty component.
C0223	Right Front Wheel Speed Signal Erratic	Check the right front wheel speed sensor, sensor mounting, tone ring, wiring, and connectors for an unstable signal, then repair or replace the faulty component.
C0225	Left Front Wheel Speed Sensor Circuit Open	Check the left front wheel speed sensor wiring and connectors for an open circuit, then restore continuity or replace the sensor.
C0226	Left Front Wheel Speed Signal Missing	Inspect the left front wheel speed sensor, tone ring, wiring, and connectors, then repair or replace the faulty component.
C0227	Left Front Wheel Speed Signal Erratic	Check the left front wheel speed sensor, tone ring, wiring, and connectors for an unstable signal, then repair or replace the faulty component.
C0229	Drop Out of Front Wheel Speed Signals	Inspect the front wheel speed sensors, wiring, connectors, and tone rings for intermittent signal loss, then repair or replace the faulty component.
C0235	Rear Wheel Speed Signal Circuit Open	Check the rear wheel speed sensor wiring and connectors for an open circuit, then restore continuity or replace the faulty sensor.
C0236	Rear Wheel Speed Signal Circuit Missing	Inspect the rear wheel speed sensor, tone ring, wiring, and connectors, then repair or replace the faulty component.
C0237	Rear Wheel Speed Signal Erratic	Check the rear wheel speed sensor signal, sensor mounting, tone ring, wiring, and connectors, then repair or replace the faulty component.
C0238	Wheel Speed Mismatch	Compare the wheel speed sensor signals and inspect the sensors, tone rings, tire sizes, and wiring, then correct the faulty signal or component.
C0241	EBCM Control Valve Circuit	Check the EBCM control valve, wiring, connectors, and electrical resistance, then repair or replace the faulty valve or circuit.
C0245	Wheel Speed Sensor Frequency Error	Inspect the wheel speed sensors, tone rings, wiring, and sensor mounting for an incorrect frequency signal, then repair or replace the faulty component.
C0254	EBCM Control Valve Circuit	Inspect the EBCM control valve circuit, wiring, connectors, and valve resistance, then repair or replace the faulty component.
C0265	EBCM Relay Circuit	Check the EBCM relay, fuse, wiring, connectors, and power supply, then repair or replace the faulty relay or circuit.
C0266	EBCM Relay Circuit	Inspect the EBCM relay circuit for wiring, connector, power supply, or relay faults, then repair or replace the faulty component.
C0267	Pump Motor Circuit Open/Shorted	Check the ABS pump motor wiring and connectors for an open or short circuit, then repair the wiring or replace the pump motor if necessary.
C0268	Pump Motor Circuit Open/Shorted	Inspect the ABS pump motor circuit, wiring, connectors, and power supply for an open or short, then repair or replace the faulty component.
C0269	Excessive Dump/Isolation Time	Inspect the ABS hydraulic valves, brake lines, fluid condition, and pump operation for restricted or abnormal pressure control, then repair the faulty component.
C0271	EBCM Malfunction	Check EBCM power, ground, wiring, connectors, and communication circuits, then repair the circuit or replace and program the EBCM if necessary.
C0272	EBCM Malfunction	Inspect the EBCM power supply, grounds, wiring, connectors, and internal operation, then repair or replace the module as required.
C0273	EBCM Malfunction	Check the EBCM electrical connections and communication circuits, then repair the wiring or replace and program the EBCM if an internal fault is confirmed.
C0274	Excessive Dump/Isolation Time	Check the ABS hydraulic system, valves, brake fluid, and pump operation, then repair any restriction or faulty component causing delayed pressure control.
C0279	Powertrain Configuration Not Valid	Verify the vehicle configuration data and module programming, then correct the configuration and reprogram the affected module if necessary.
C0281	Brake Switch Circuit	Inspect the brake switch, wiring, connectors, and adjustment, then repair or replace the faulty switch or circuit.
C0283	Traction Switch Shorted to Ground	Check the traction control switch wiring for a short to ground, then repair or replace the affected wiring or switch.
C0284	EBCM Malfunction	Check EBCM power, ground, wiring, connectors, and communication circuits, then repair or replace the EBCM if an internal fault is confirmed.
C0286	ABS Indicator Lamp Circuit Shorted to B+	Inspect the ABS warning lamp circuit for a short to battery voltage, then repair or replace the affected wiring or component.
C0287	Delivered Torque Circuit	Check the delivered torque signal wiring, connectors, and communication with the powertrain control module, then repair the faulty circuit.
C0288	Brake Warning Lamp Circuit Shorted to B+	Inspect the brake warning lamp circuit for a short to battery voltage, then repair or replace the affected wiring.
C0290	Lost Communications With PCM	Check the PCM power supply, grounds, CAN communication wiring, and connectors, then repair the communication circuit or faulty module.
C0292	Lost Communications With PCM	Inspect PCM power, grounds, communication wiring, and connectors, then repair the communication circuit or replace the faulty module if necessary.
C0291	Lost Communications With BCM	Check BCM power, grounds, CAN communication wiring, and connectors, then repair the communication circuit or faulty module.
C0297	Powertrain Configuration Data Not Received	Check communication between the EBCM and powertrain modules, then restore communication and reprogram or configure the affected module if required.
C0298	Powertrain Indicated Traction Control Malfunction	Check the powertrain control system for related traction control faults and communication errors, then repair the underlying fault and clear the code.
C0300	Rear Speed Sensor Malfunction	Inspect the rear speed sensor, wiring, connectors, and sensor signal, then repair or replace the faulty component.
C0305	Front Speed Sensor Malfunction	Inspect the front speed sensor, wiring, connectors, and sensor signal, then repair or replace the faulty component.
C0306	Motor A or B Circuit	Check the motor A/B wiring, connectors, power supply, and motor operation, then repair or replace the faulty component.
C0308	Motor A/B Circuit Low	Inspect the motor A/B circuit for low voltage, damaged wiring, poor connections, or a faulty motor, then repair the circuit.
C0309	Motor A/B Circuit High	Check the motor A/B circuit for excessive voltage, wiring faults, or a faulty control component, then repair or replace the affected part.
C0310	Motor A/B Circuit Open	Check the motor A/B wiring and connectors for an open circuit, then restore continuity or replace the damaged wiring.
C0315	Motor Ground Circuit Open	Inspect the motor ground wiring and connection for an open circuit, then restore a clean and secure ground connection.
C0321	Transfer Case Lock Circuit	Check the transfer case lock actuator, wiring, connectors, and power supply, then repair or replace the faulty component.
C0323	T-Case Lock Circuit Low	Check the transfer case lock circuit for low voltage, poor connections, or damaged wiring, then repair the circuit or actuator.
C0324	T-Case Lock Circuit High	Inspect the transfer case lock circuit for excessive voltage or wiring faults, then repair or replace the affected component.
C0327	Encoder Circuit Malfunction	Inspect the transfer case encoder sensor, wiring, connectors, and signal, then repair or replace the faulty encoder or circuit.
C0357	Park Switch Circuit High	Check the park switch circuit for excessive voltage, wiring faults, or a faulty switch, then repair or replace the affected component.
C0359	Four Wheel Drive Low Range (4LO) Discrete Output Circuit	Inspect the 4LO output wiring, connectors, and transfer case control circuit, then repair or replace the faulty component.
C0362	4LO Discrete Output Circuit High	Check the 4LO output circuit for excessive voltage or a short to battery, then repair or replace the affected wiring or component.
C0367	Front Axle Control Circuit High	Inspect the front axle control circuit for excessive voltage or a short to battery, then repair the wiring or faulty actuator.
C0374	General System Malfunction	Check the four-wheel-drive system for related sensor, actuator, wiring, and communication faults, then repair the underlying problem.
C0376	Front/Rear Shaft Speed Mismatch	Compare front and rear shaft speed signals and inspect the speed sensors, wiring, and drivetrain for mechanical problems, then repair the cause of the mismatch.
C0379	Front Axle System	Inspect the front axle actuator, wiring, sensors, and mechanical engagement system, then repair or replace the faulty component.
C0387	Unable to Perform Shift	Check transfer case actuator operation, shift position sensors, wiring, and mechanical components for binding, then repair the cause preventing the shift.
C0472	Steering Handwheel Speed Sensor Signal V Low	Check the steering handwheel speed sensor supply, wiring, and signal for low voltage, then repair the circuit or replace the sensor.
C0473	Steering Handwheel Speed Sensor Signal V High	Inspect the steering handwheel speed sensor circuit for excessive voltage or wiring faults, then repair or replace the affected component.
C0495	EVO Tracking Error	Check the steering assist actuator, position feedback, wiring, and calibration, then repair or recalibrate the system as required.
C0498	Steering Assist Control Actuator Feed Circuit Low	Check the steering assist actuator power supply and wiring for low voltage, then repair the circuit or replace the faulty actuator.
C0499	Steering Assist Control Solenoid Feed Circuit High	Inspect the steering assist solenoid feed circuit for excessive voltage or a short to battery, then repair the wiring or solenoid.
C0503	Steering Assist Control Solenoid Return Circuit Low	Check the solenoid return circuit for low voltage, poor grounding, or wiring damage, then repair the circuit.
C0504	Steering Assist Control Solenoid Return Circuit High	Inspect the solenoid return circuit for excessive voltage or an open/poor ground connection, then repair the affected circuit.
C0550	ECU Malfunction internal write / checksum Malfunction	Check ECU power, grounds, wiring, and software integrity, then reprogram or replace the ECU if the internal fault remains.
C0559	EEPROM checksum Error	Verify ECU power and memory integrity, then reprogram or replace the ECU if the EEPROM checksum remains incorrect.
C0563	Calibration ROM checksum Error	Check the ECU calibration data and software, then perform the correct calibration/reprogramming procedure or replace the module if necessary.
C0577	Left Front Solenoid Circuit Low	Check the left front solenoid circuit for low voltage, poor connections, or wiring damage, then repair or replace the faulty solenoid.
C0578	Left Front Solenoid Circuit High	Check the left front solenoid circuit for excessive voltage or a short to battery, then repair the wiring or replace the faulty solenoid.
C0579	Left Front Solenoid Circuit Open	Inspect the left front solenoid wiring and connectors for an open circuit, then restore continuity or replace the damaged wiring.
C0582	Right Front Solenoid Circuit Low	Check the right front solenoid circuit for low voltage, poor connections, or wiring damage, then repair the circuit or replace the solenoid.
C0583	Right Front Solenoid Circuit High	Inspect the right front solenoid circuit for excessive voltage or a short to battery, then repair the wiring or replace the faulty solenoid.
C0584	Right Front Solenoid Circuit Open	Check the right front solenoid wiring and connectors for an open circuit, then restore continuity or replace the damaged wiring.
C0587	Left Rear Solenoid Circuit Low	Check the left rear solenoid circuit for low voltage, poor connections, or damaged wiring, then repair the circuit or replace the solenoid.
C0588	Left Rear Solenoid Circuit High	Inspect the left rear solenoid circuit for excessive voltage or a short to battery, then repair the wiring or replace the faulty solenoid.
C0589	Left Rear Solenoid Circuit Open	Check the left rear solenoid wiring and connectors for an open circuit, then restore continuity or replace the damaged wiring.
C0592	Right Rear Solenoid Circuit Low	Check the right rear solenoid circuit for low voltage, poor connections, or damaged wiring, then repair the circuit or replace the solenoid.
C0593	Right Rear Solenoid Circuit High	Inspect the right rear solenoid circuit for excessive voltage or a short to battery, then repair the wiring or replace the faulty solenoid.
C0594	Right Rear Solenoid Circuit Open	Check the right rear solenoid wiring and connectors for an open circuit, then restore continuity or replace the damaged wiring.
C0611	VIN Information Error	Verify the VIN stored in the control modules, check communication between modules, and correct the VIN configuration or reprogram the affected module.
C0615	Left Front Position Sensor Malfunction	Inspect the left front position sensor, wiring, connectors, and mounting, then repair or replace the faulty sensor and calibrate the system.
C0620	Right Front Position Sensor Malfunction	Inspect the right front position sensor, wiring, connectors, and mounting, then repair or replace the faulty sensor and calibrate the system.
C0625	Left Rear Position Sensor Malfunction	Check the left rear position sensor, wiring, connectors, and mounting, then repair or replace the faulty sensor and calibrate the system.
C0628	Level Control Position Sensor Circuit High	Inspect the level control position sensor circuit for excessive voltage or a short to battery, then repair the wiring or replace the sensor.
C0630	Right Rear Position Sensor Malfunction	Check the right rear position sensor, wiring, connectors, and mounting, then repair or replace the faulty sensor and calibrate the system.
C0635	Left Front Normal Force Circuit Malfunction	Inspect the left front normal force sensor, wiring, connectors, and signal, then repair or replace the faulty component and calibrate the system.
C0638	Left Front Normal Force Circuit High	Check the left front normal force circuit for excessive voltage or a short to battery, then repair the wiring or replace the sensor.
C0640	Right Front Normal Force Circuit Malfunction	Inspect the right front normal force sensor, wiring, connectors, and signal, then repair or replace the faulty component and calibrate the system.
C0643	Right Front Normal Force Circuit High	Check the right front normal force circuit for excessive voltage or a short to battery, then repair the wiring or replace the sensor.
C0655	Level Control Compressor Relay Malfunction	Inspect the level control compressor relay, fuse, wiring, connectors, and power supply, then repair or replace the faulty component.
C0657	Level Control Compressor Circuit Low	Check the compressor circuit for low voltage, poor connections, or excessive resistance, then repair the wiring or replace the compressor.
C0658	Level Control Compressor Circuit High	Inspect the compressor circuit for excessive voltage or a short to battery, then repair the wiring or replace the faulty component.
C0660	Level Control Exhaust Valve Circuit Malfunction	Check the level control exhaust valve, wiring, connectors, and electrical resistance, then repair or replace the faulty valve.
C0662	Level Control Exhaust Valve Circuit Low	Inspect the exhaust valve circuit for low voltage or poor connections, then repair the wiring or replace the valve.
C0663	Level Control Exhaust Valve Circuit High	Check the exhaust valve circuit for excessive voltage or a short to battery, then repair the wiring or replace the faulty valve.
C0665	Chassis Pitch Signal Circuit	Inspect the chassis pitch sensor, wiring, connectors, and signal, then repair or replace the faulty component and calibrate the system.
C0690	Damper Control Relay Circuit Malfunction	Check the damper control relay, fuse, wiring, connectors, and power supply, then repair or replace the faulty component.
C0691	Damper Control Relay Circuit Range	Inspect the damper control relay circuit for abnormal voltage or resistance, then repair the wiring or replace the relay if necessary.
C0693	Damper Control Relay Circuit High	Check the damper control relay circuit for excessive voltage or a short to battery, then repair the wiring or replace the faulty relay.
C0695	Position Sensor Overcurrent (8 volt supply)	Check the 8 V supply circuit for a short or excessive current draw, then inspect the position sensors and wiring and replace the faulty component.
C0696	Position Sensor Overcurrent (5 volt supply)	Check the 5 V reference circuit for a short or excessive current draw, then inspect the position sensors and wiring and repair or replace the faulty component.
C0710	Steering Position Signal Malfunction	Inspect the steering position sensor, wiring, connectors, and signal, then repair or replace the faulty sensor and perform calibration if required.
C0750	Tire Pressure Monitor (TPM) System Sensor Not transmitting	Check the affected tire pressure sensor, sensor battery, wiring, and receiver, then replace the sensor if it is not transmitting and relearn it to the system.
C0755	Tire Pressure Monitor (TPM) System Sensor Not transmitting	Inspect the affected TPM sensor and receiver for signal loss, then replace the faulty sensor and perform the required sensor relearn procedure.
C0760	Tire Pressure Monitor (TPM) System Sensor Not transmitting	Check the tire pressure sensor, battery condition, and communication with the TPM module, then replace and relearn the faulty sensor if necessary.
C0765	Tire Pressure Monitor (TPM) System Sensor Not transmitting	Inspect the affected TPM sensor and system receiver for communication problems, then replace the sensor if faulty and perform a relearn.
C0800	Device Power #1 Circuit Malfunction	Check the device power supply, fuse, wiring, connectors, and ground for faults, then repair the circuit or replace the faulty component.
C0896	Electronic Suspension Control (ESC) voltage is outside the normal range of 9 to 15.5 volts	Check the battery, alternator, charging system, power and ground connections, then correct the voltage problem before clearing the code.

Chassis (B)

Code DTC	Description	Troubleshooting instructions
B0001	B3PCM Discrete Input Speed Signal Error	Check the vehicle speed input signal, wiring, connectors, and PCM connections. Verify that the PCM receives a correct speed signal.
B0004	PCM Discrete Input Speed Signal Not Present	Check the vehicle speed signal circuit, wiring, connectors, and related sensors. Verify the signal at the PCM.
B0005	In Park Switch Circuit Malfunction	Check the Park switch, wiring, connectors, and circuit continuity. Verify proper switch operation and the signal received by the control module.
B0012	Right Front/Passenger Frontal Deployment Loop Circuit	Check the right front/passenger airbag deployment loop, connectors, wiring, and control module connections for damage or poor contact.
B0013	Right Front/Passenger Frontal Deployment Loop Circuit	Inspect the right front/passenger frontal deployment loop, wiring, connectors, and terminals. Check for an open or shorted circuit.
B0014	Right Front/Passenger Frontal Deployment Loop Circuit	Inspect the right front/passenger frontal deployment loop and related wiring. Check connectors and terminals for damage, corrosion, or poor contact.
B0016	Right Front/Passenger Frontal Deployment Loop (Single Stage or Stage 1) Resistance Low	Inspect the passenger frontal deployment loop and connectors for a short circuit or excessively low resistance. Follow the manufacturer’s SRS diagnostic procedure.
B0017	Right Front/Passenger Frontal Deployment Loop (Single Stage or Stage 1) Open	Check the passenger frontal deployment loop for an open circuit. Inspect wiring, connectors, terminals, and the deployment device according to the manufacturer’s SRS procedure.
B0018	Right Front/Passenger Frontal Deployment Loop (Single Stage or Stage 1) Short to Ground/Voltage Out of Range	Check the passenger frontal deployment loop wiring and connectors for a short to ground or incorrect voltage. Inspect damaged or pinched wiring.
B0022	Left Front/Driver Frontal Deployment Loop (Single Stage or Stage 1) Resistance Low	Inspect the driver frontal deployment loop for a short circuit or low resistance. Check connectors, wiring, and terminals using the manufacturer’s SRS procedure.
B0024	Left Front/Driver Frontal Deployment Loop (Single Stage or Stage 1) Short to Ground/Voltage Out of Range	Check the driver frontal deployment loop for a short to ground or abnormal voltage. Inspect the wiring, connectors, and terminals for damage.
B0026	Left Front/Driver Frontal Deployment Loop (Single Stage or Stage 1) Open	Check the driver frontal deployment loop for an open circuit. Inspect wiring, connectors, terminals, and the deployment device.
B0028	Right Front/Passenger Side Deployment Loop Resistance Low	Inspect the passenger side deployment loop for a short circuit or low resistance. Check the wiring, connectors, and terminals for damage or improper connections.
B0029	Right Front/Passenger Side Deployment Loop Open	Check the passenger side deployment loop for an open circuit. Inspect the wiring, connectors, terminals, and deployment device.
B0030	Right Front/Passenger Side Deployment Loop Short to Ground/Voltage Out of Range	Check the passenger side deployment loop for a short to ground or abnormal voltage. Inspect the wiring and connectors for damage or improper contact.
B0035	ADS Closed/Shorted to Ground	Check the ADS circuit for a short to ground or a continuously closed circuit. Inspect the switch, wiring, connectors, and control module connections.
B0036	ADS Open/Missing/Shorted to Battery	Check the ADS circuit for an open circuit or short to battery voltage. Inspect the switch, wiring, connectors, and terminals.
B0037	AUX Switch Closed/Shorted to Ground	Check the AUX switch circuit for a continuously closed condition or short to ground. Inspect the switch, wiring, and connectors.
B0038	AUX Switch Open/Shorted to Battery	Check the AUX switch circuit for an open circuit or short to battery voltage. Inspect the switch, wiring, connectors, and terminals.
B0040	Left Front/Driver Side Deployment Loop Resistance Low	Inspect the driver side deployment loop for a short circuit or low resistance. Check the wiring, connectors, and terminals for damage.
B0041	Left Front/Driver Side Deployment Loop Open	Check the driver side deployment loop for an open circuit. Inspect the wiring, connectors, terminals, and deployment device.
B0042	Left Front/Driver Frontal Deployment Loop Circuit	Inspect the driver frontal deployment loop, wiring, connectors, and terminals. Check for an open or short circuit and verify the circuit according to the manufacturer’s SRS procedure.
B0043	Left Front/Driver Frontal Deployment Loop Circuit	Check the driver frontal deployment loop and related wiring. Inspect connectors and terminals for damage, corrosion, or poor contact.
B0044	Left Front/Driver Frontal Deployment Loop Circuit	Inspect the driver frontal deployment loop, wiring, connectors, and control module connections. Check for abnormal resistance or circuit faults.
B0045	Left Front Side Deploy Loop Short to Ground/Voltage Out of Range	Check the driver side deployment loop for a short to ground or abnormal voltage. Inspect the wiring, connectors, and terminals for damage.
B0051	Deployment Commanded	Check the SRS/airbag system for a recorded deployment event. Inspect the airbag modules, pretensioners, wiring, and SRS control module according to the manufacturer’s repair procedure.
B0053	Deployment Commanded with Loop Malfunctions Present	Check the SRS system for a deployment event and stored loop faults. Inspect affected airbags, pretensioners, wiring, and the SRS control module before clearing the code.
B0057	Right Front/Passenger Pretensioner Deployment Loop Resistance Low	Inspect the passenger seat belt pretensioner deployment loop for low resistance or a short circuit. Check the wiring, connectors, and terminals according to the manufacturer’s SRS procedure.
B0058	Right Front/Passenger Pretensioner Deployment Loop Open	Check the passenger seat belt pretensioner deployment loop for an open circuit. Inspect the wiring, connectors, terminals, and pretensioner connection.
B0059	Right Front/Passenger Pretensioner Deployment Loop Short to Ground/Voltage Out of Range	Check the passenger pretensioner deployment loop for a short to ground or abnormal voltage. Inspect the wiring, connectors, and terminals for damage or poor contact.
B0061	Roof Rail Module-Left Deployment Loop Circuit	Inspect the left roof rail deployment loop, wiring, connectors, and terminals. Check for an open or short circuit and verify the circuit according to the manufacturer’s SRS procedure.
B0062	Roof Rail Module-Left Deployment Loop Circuit	Check the left roof rail deployment loop and related wiring. Inspect connectors and terminals for damage, corrosion, or poor contact.
B0064	Left Front/Driver Pretensioner Deployment Loop Resistance Low	Inspect the driver pretensioner deployment loop for low resistance or a short circuit. Check the wiring, connectors, and terminals according to the manufacturer’s SRS procedure.
B0065	Left Front/Driver Pretensioner Deployment Loop Open	Check the driver pretensioner deployment loop for an open circuit. Inspect the wiring, connectors, terminals, and pretensioner connection.
B0066	Left Front/Driver Pretensioner Deployment Loop Short to Ground/Voltage Out of Range	Check the driver pretensioner deployment loop for a short to ground or abnormal voltage. Inspect the wiring, connectors, and terminals for damage.
B0068	Roof Rail Module-Left Deployment Loop Circuit	Inspect the left roof rail deployment loop, wiring, connectors, and terminals. Check for an open or short circuit and verify the circuit according to the manufacturer’s SRS procedure.
B0069	Roof Rail Module-Right Deployment Loop Circuit	Inspect the right roof rail deployment loop, wiring, connectors, and terminals. Check for an open or short circuit and verify the circuit according to the manufacturer’s SRS procedure.
B0070	Roof Rail Module-Right Deployment Loop Circuit	Check the right roof rail deployment loop and related wiring. Inspect connectors and terminals for damage, corrosion, or poor contact.
B0071	Roof Rail Module-Right Deployment Loop Circuit	Inspect the right roof rail deployment loop, wiring, connectors, and terminals. Check for abnormal resistance, an open circuit, or a short circuit.
B0073	Supplemental Deployment Loop #1 Resistance Low	Inspect Supplemental Deployment Loop #1 for low resistance or a short circuit. Check the wiring, connectors, and terminals according to the manufacturer’s SRS procedure.
B0074	Supplemental Deployment Loop #1 Open	Check Supplemental Deployment Loop #1 for an open circuit. Inspect the wiring, connectors, terminals, and connected deployment device.
B0075	Supplemental Deployment Loop #1 Short to Ground/Voltage Out of Range	Check Supplemental Deployment Loop #1 for a short to ground or abnormal voltage. Inspect the wiring, connectors, and terminals for damage.
B0077	Left Front/Driver Side Impact Sensor (SIS) Malfunction	Check the left front/driver side impact sensor, wiring, connectors, mounting, and power/communication circuits. Verify proper sensor operation using the manufacturer’s diagnostic procedure.
B0078	Right Front/Passenger SIS Malfunction	Check the right front/passenger side impact sensor, wiring, connectors, mounting, and power/communication circuits. Verify proper sensor operation using the manufacturer’s diagnostic procedure.
B0079	Incorrect Left Front/Driver SIS Installed	Verify that the correct left front/driver side impact sensor is installed. Check the sensor part number, configuration, mounting position, and SRS module compatibility.
B0080	Discard Left Front/Driver SIS	Remove and replace the left front/driver side impact sensor if required by the manufacturer’s SRS repair procedure. Verify correct sensor installation and clear the fault after repair.
B0081	Incorrect Right Front/Passenger SIS Installed	Verify that the correct right front/passenger side impact sensor is installed. Check the sensor part number, configuration, mounting position, and SRS module compatibility.
B0082	Discard Right Front/Passenger SIS	Remove and replace the right front/passenger side impact sensor if required by the manufacturer’s SRS repair procedure. Verify correct installation and clear the fault after repair.
B0086	Supplemental Deployment Loop #2 Resistance Low	Inspect Supplemental Deployment Loop #2 for low resistance or a short circuit. Check the wiring, connectors, and terminals according to the manufacturer’s SRS procedure.
B0087	Supplemental Deployment Loop #2 Open	Check Supplemental Deployment Loop #2 for an open circuit. Inspect the wiring, connectors, terminals, and connected deployment device.
B0088	Supplemental Deployment Loop #2 Short to Ground/Voltage Out of Range	Check Supplemental Deployment Loop #2 for a short to ground or abnormal voltage. Inspect the wiring, connectors, and terminals for damage.
B0090	Active Switch Voltage Out of Range	Check the active switch circuit for incorrect voltage. Inspect the switch, wiring, connectors, power supply, and ground connections.
B0091	Active Switch: wrong state	Check the active switch position and operation. Inspect the switch, wiring, connectors, and related control module inputs for an incorrect state.
B0092	PPS Passenger detection Error	Check the Passenger Presence System (PPS) sensors, wiring, connectors, and seat components. Perform the required PPS calibration and diagnostic procedure.
B0093	PPS/CPS self-test Malfunction	Check the Passenger Presence System (PPS) and Child Presence System (CPS) for self-test faults. Inspect wiring, connectors, sensors, and module communication, then perform the required calibration.
B0094	CPS childseat detection Error	Check the Child Presence System (CPS) for proper child-seat detection. Inspect the relevant sensors, wiring, connectors, and perform the manufacturer’s calibration procedure if required.
B0095	SDM-PPS/CPS mismatch Malfunction	Check communication and configuration between the Sensing and Diagnostic Module (SDM), PPS, and CPS. Verify module configuration, calibration, wiring, and connector integrity.
B0100	Electronic Front End Sensor 1 Performance	Check Electronic Front End Sensor 1, including its mounting, wiring, connectors, power supply, and communication circuit. Verify sensor operation using the manufacturer’s diagnostic procedure.
B0101	Electronic Front End Sensor 1 Performance	Inspect Electronic Front End Sensor 1 and its related wiring, connectors, power supply, and communication circuit. Verify correct sensor operation and mounting.
B0102	Electronic Front End Sensor 1 Performance	Check Electronic Front End Sensor 1, including its mounting, wiring, connectors, power supply, and communication circuit. Verify proper sensor operation using the manufacturer’s diagnostic procedure.
B0103	Electronic Frontal Sensor Circuit	Inspect the electronic frontal sensor circuit, including wiring, connectors, power supply, and ground. Check for an open or short circuit and verify the sensor signal.
B0104	Electronic Frontal Sensor Circuit	Check the electronic frontal sensor, wiring, connectors, and related circuit. Inspect for damaged wiring, poor connections, or abnormal sensor signals.
B0105	Electronic Frontal Sensor Circuit	Inspect the electronic frontal sensor circuit for an open or short circuit. Check the sensor, connectors, wiring, power supply, and ground connections.
B0109	Side impact module-Left Rear deployment loop resistance is less than 1.3 ohms	Check the left rear side-impact deployment loop for excessively low resistance or a short circuit. Inspect the wiring, connectors, and terminals according to the manufacturer’s SRS procedure.
B0110	Side impact module-Left Rear high circuit is less than 2.4 volts	Check the left rear side-impact module high circuit for low voltage. Inspect the wiring, connectors, power supply, and module connections for damage or poor contact.
B0111	Side Impact Module-Left Rear high and/or Low circuits is Short to Ground or Short to Voltage	Inspect the left rear side-impact module high and low circuits for a short to ground or voltage. Check the wiring, connectors, and terminals for damage or improper contact.
B0112	Side impact module-Right Rear deployment loop resistance is less than 1.3 ohms	Check the right rear side-impact deployment loop for excessively low resistance or a short circuit. Inspect the wiring, connectors, and terminals according to the manufacturer’s SRS procedure.
B0113	Side impact module-Right Rear high circuit is less than 2.4 volts	Check the right rear side-impact module high circuit for low voltage. Inspect the wiring, connectors, power supply, and module connections.
B0114	Side Impact Module-Right Rear high and/or Low circuits is Short to Ground or Short to Voltage	Inspect the right rear side-impact module high and low circuits for a short to ground or voltage. Check the wiring, connectors, and terminals for damage or poor contact.
B0126	Right Panel Discharge Temperature Fault	Check the right panel discharge temperature sensor, wiring, and connectors. Verify the sensor reading and inspect the HVAC control module for related faults.
B0130	Air Temperature/Mode Door Actuator Malfunction	Check the air temperature/mode door actuator, wiring, connectors, and power supply. Verify actuator movement and inspect the HVAC door for binding or obstruction.
B0131	Right Heater Discharge Temperature Fault	Check the right heater discharge temperature sensor, wiring, and connectors. Verify the sensor reading and inspect the HVAC system for abnormal temperature conditions.
B0145	Auxiliary HAVC Actuator Circuit	Inspect the auxiliary HVAC actuator, wiring, connectors, and power supply. Verify actuator operation and check for an open or short circuit.
B0159	Outside Air Temperature Sensor Circuit Range/Performance	Check the outside air temperature sensor, wiring, and connectors. Compare the sensor reading with the actual ambient temperature and inspect for an incorrect or unstable signal.
B0160	Ambient Air Temperature Sensor Circuit	Inspect the ambient air temperature sensor circuit, wiring, and connectors. Check the sensor signal, power supply, and ground.
B0162	Ambient Air Temperature Sensor Circuit	Check the ambient air temperature sensor, wiring, connectors, and circuit continuity. Verify that the sensor provides a correct temperature signal.
B0164	Passenger Compartment Temperature Sensor #1 (Single Sensor or LH) Circuit Range/Performance	Check the passenger compartment temperature sensor #1, wiring, and connectors. Compare the sensor reading with the actual cabin temperature and verify proper operation.
B0169	In-car Temp Sensor Failure (passenger -not used)	Check the passenger-side in-car temperature sensor circuit and connectors if equipped. Verify sensor configuration and HVAC module settings if the sensor is not used in the vehicle.
B0174	Output Air Temperature Sensor #1 (Upper; Single or LH) Circuit Range/Performance	Check the upper output air temperature sensor #1, wiring, and connectors. Verify the sensor reading and inspect for an incorrect or unstable temperature signal.
B0179	Output Air Temperature Sensor #2 (Lower; Single or LH) Circuit Range/Performance	Check the lower output air temperature sensor #2, wiring, and connectors. Verify the sensor reading and inspect for an incorrect or unstable temperature signal.
B0183	Sunload Sensor Circuit	Check the sunload sensor, wiring, connectors, power supply, and ground. Verify that the sensor responds correctly to changes in sunlight.
B0184	Solar Load Sensor #1 Circuit Range (sunload)	Check Solar Load Sensor #1 for an out-of-range signal. Inspect the sensor, wiring, connectors, power supply, and HVAC control module input.
B0188	Sunload Sensor Circuit	Inspect the sunload sensor circuit, wiring, connectors, and power supply. Verify the sensor signal and check for an open or short circuit.
B0189	Solar Load Sensor #2 Circuit Range (sunload)	Check Solar Load Sensor #2 for an out-of-range signal. Inspect the sensor, wiring, connectors, power supply, and HVAC control module input.
B0229	HVAC Actuator Circuit	Check the HVAC actuator, wiring, connectors, and power supply. Verify actuator operation and inspect the HVAC door mechanism for binding, obstruction, or mechanical damage.
B0248	Mode Door Inoperative Error	Check the mode door actuator, wiring, connectors, and power supply. Verify actuator operation and inspect the door mechanism for binding or obstruction.
B0249	Heater/Defrost/AC Door Range Error	Check the heater/defrost/AC door actuator and position feedback circuit. Inspect the wiring, connectors, and door mechanism for obstruction or incorrect travel.
B0263	HVAC Actuator Circuit	Inspect the HVAC actuator, wiring, connectors, and power supply. Check for an open or short circuit and verify proper actuator operation.
B0268	A/I Door Inoperative Error	Check the air inlet (A/I) door actuator, wiring, and connectors. Verify actuator movement and inspect the door mechanism for binding or obstruction.
B0269	Air Inlet Door Range Error	Check the air inlet door actuator and position feedback circuit. Inspect wiring and connectors and verify that the door moves through its full range.
B0283	Electric Rear Defrost Circuit	Check the rear defrost circuit, wiring, connectors, relay, fuse, and heating grid. Verify proper power supply and continuity of the defrost elements.
B0285	Electric Rear Defrost Circuit Low (BCM)	Check the rear defrost control circuit for low voltage. Inspect the BCM output, relay, fuse, wiring, and connectors for a short to ground or excessive resistance.
B0286	Electric Rear Defrost Circuit high (BCM)	Check the rear defrost control circuit for excessive voltage. Inspect the BCM output, relay, wiring, and connectors for an open circuit or short to battery voltage.
B0408	Temperature Control #1 (Main/Front) Circuit Malfunction	Check the main/front temperature control actuator, wiring, connectors, and power supply. Verify actuator operation and inspect the temperature door mechanism.
B0409	Air Mix Door #1 Range Error	Check Air Mix Door #1 actuator and position feedback. Inspect wiring, connectors, and the door mechanism and verify full actuator travel.
B0414	Air Temperature/Mode Door Actuator Malfunction	Check the air temperature/mode door actuator, wiring, connectors, and power supply. Verify actuator movement and inspect the door for binding or obstruction.
B0418	HVAC Actuator Circuit	Inspect the HVAC actuator circuit for an open or short circuit. Check the actuator, wiring, connectors, power supply, and control module output.
B0419	Air Mix Door #2 Range Error	Check Air Mix Door #2 actuator and position feedback circuit. Inspect wiring, connectors, and the door mechanism for restricted movement.
B0423	Air Mix Door #2 Inoperative Error	Check Air Mix Door #2 actuator, wiring, connectors, and power supply. Verify actuator operation and inspect the door mechanism for binding or obstruction.
B0424	Air Temperature/Mode Door Actuator Malfunction	Inspect the air temperature/mode door actuator, wiring, connectors, and power supply. Verify actuator operation and check the door mechanism for damage or obstruction.
B0428	Air Mix Door #3 Inoperative Error	Check Air Mix Door #3 actuator, wiring, connectors, and power supply. Verify actuator movement and inspect the door mechanism for binding or obstruction.
B0429	Temperature Control #3 Rear Circuit Range/Performance	Check the rear temperature control #3 actuator and position feedback circuit. Inspect wiring, connectors, and the temperature door for restricted movement or an incorrect position signal.
B0510	RH Panel Discharge Temp Sensor Failure	Check the right-hand panel discharge temperature sensor, wiring, and connectors. Verify the sensor signal and compare the reading with the actual discharge air temperature.
B0515	RH Heater Discharge Temp Sensor Failure	Check the right-hand heater discharge temperature sensor, wiring, and connectors. Verify the sensor signal and inspect for an incorrect or unstable temperature reading.
B0520	Rear Discharge Temp Sensor Failure	Check the rear discharge temperature sensor, wiring, and connectors. Verify the sensor signal and compare the reading with the actual rear discharge air temperature.
B0530	Fuel Level Sensor Stuck	Check the fuel level sensor and float mechanism for being stuck or restricted. Inspect the wiring and connectors and verify that the sensor signal changes correctly as the fuel level changes.
B0532	Fuel Sensor Shorted to Ground	Inspect the fuel level sensor circuit for a short to ground. Check the sensor, wiring, connectors, and terminals for damaged insulation or improper grounding.
B0533	Fuel Sensor Open/Shorted To B+	Check the fuel level sensor circuit for an open circuit or short to battery voltage. Inspect the sensor, wiring, connectors, and terminals for damage or poor connections.
B0540	Speedometer Circuit	Check the vehicle speed signal circuit, wiring, connectors, and related control modules. Verify that the correct vehicle speed signal is being received by the instrument cluster.
B0560	Tachometer Circuit	Check the engine RPM signal circuit, wiring, connectors, and related control modules. Verify that the instrument cluster receives a correct engine speed signal.
B0688	Security System Indicator Circuit high	Check the security system indicator circuit for excessive voltage. Inspect the BCM output, wiring, connector, and indicator for an open circuit or short to battery voltage.
B0689	Security System Indicator Circuit Open (BCM)	Check the security system indicator circuit for an open circuit. Inspect the BCM connector, wiring, indicator, and terminals for poor connections or damaged wiring.
B0728	P (Park) Indicator Circuit high (BCM)	Check the Park indicator circuit for excessive voltage. Inspect the BCM output, wiring, connectors, and instrument cluster for a short to battery voltage.
B0729	P (Park) Indicator Circuit Open (BCM)	Check the Park indicator circuit for an open circuit. Inspect the BCM connector, wiring, terminals, and instrument cluster for poor connections or damaged wiring.
B0733	R (reverse) Indicator Circuit High (BCM)	Check the Reverse indicator circuit for excessive voltage. Inspect the BCM output, wiring, connectors, and instrument cluster for a short to battery voltage.
B0734	R (reverse) Indicator Circuit Open (BCM)	Check the Reverse indicator circuit for an open circuit. Inspect the BCM connector, wiring, terminals, and instrument cluster for poor connections or damaged wiring.
B0738	N (neutral) Indicator Circuit high (BCM)	Check the Neutral indicator circuit for excessive voltage. Inspect the BCM output, wiring, connectors, and instrument cluster for a short to battery voltage.
B0739	N (neutral) Indicator Circuit Open (BCM)	Check the Neutral indicator circuit for an open circuit. Inspect the BCM connector, wiring, terminals, and instrument cluster for poor connections or damaged wiring.
B0748	D (drive) Indicator Circuit high (BCM)	Check the Drive indicator circuit for excessive voltage. Inspect the BCM output, wiring, connectors, and instrument cluster for a short to battery voltage.
B0749	D (drive) Indicator Circuit Open (BCM)	Check the Drive indicator circuit for an open circuit. Inspect the BCM connector, wiring, terminals, and instrument cluster for poor connections or damaged wiring.
B0768	Service Indicator Circuit high	Check the service indicator circuit for excessive voltage. Inspect the indicator, wiring, connectors, and BCM output for a short to battery voltage.
B0770	All Wheel drive (AWD) Indicator Circuit	Check the AWD indicator circuit, wiring, connectors, and control module output. Verify the indicator operation and inspect for an open or short circuit.
B0775	Four Wheel Drive High Range (4HI) Indicator Circuit	Check the 4HI indicator circuit, wiring, connectors, and transfer case control module output. Verify proper indicator operation and circuit continuity.
B0780	Four Wheel Drive Low Range (4LO) Indicator Circuit	Check the 4LO indicator circuit, wiring, connectors, and transfer case control module output. Verify proper indicator operation and circuit continuity.
B0785	Two Wheel Drive High Range (2HI) Indicator Circuit	Check the 2HI indicator circuit, wiring, connectors, and transfer case control module output. Verify proper indicator operation and circuit continuity.
B0790	Transfer Case neutral Indicator Circuit	Check the transfer case Neutral indicator circuit, wiring, connectors, and control module output. Verify the indicator signal and transfer case position status.
B0846	+5 Volt Reference Out of Range	Check the 5-volt reference circuit for incorrect voltage. Inspect the affected sensors, wiring, connectors, and control module for a short to ground, short to voltage, or excessive circuit load.
B0856	Battery 2 Out of Range	Check Battery 2 voltage and charging condition. Inspect the battery, fuses, wiring, terminals, grounds, and related control module power circuits.
B0951	Dimming Circuit	Check the instrument panel dimming circuit, dimmer control, wiring, connectors, and BCM output. Verify proper dimming operation and circuit voltage.
B1000	ECU Malfunction	Check the ECU for related diagnostic trouble codes. Verify power supply, ground, communication lines, connectors, and module configuration before considering ECU replacement.
B1001	Option Configuration Error	Verify the vehicle option configuration and module programming. Reconfigure or reprogram the affected control module using the manufacturer’s approved diagnostic equipment.
B1004	Keep Alive Memory (KAM)	Check the ECU/BCM power supply and battery voltage. Inspect the KAM circuit, fuses, grounds, and connectors for interruptions or low voltage.
B1008	Calibration Data Not Programmed (BCM)	Verify BCM calibration and configuration data. Program or recalibrate the BCM using the manufacturer’s approved diagnostic equipment.
B1007	EEPROM Write Error	Check the control module power supply, ground, and communication circuits. If the fault remains, verify EEPROM/module integrity and reprogram or replace the module as required.
B1009	EEPROM Checksum Error	Check the control module for corrupted EEPROM data. Verify power and ground circuits, then reprogram or replace the module according to the manufacturer’s procedure.
B1013	ROM Checksum Error	Check the control module for corrupted ROM/program data. Verify module power and ground, then perform approved software reprogramming or replace the module if necessary.
B1014	Program ROM Checksum Error	Verify the control module software and program memory. Check power and communication circuits and reprogram the module using the manufacturer’s approved procedure.
B1015	Passenger Deploy. Loop Resistance high	Check the passenger deployment loop for excessive resistance. Inspect the wiring, connectors, terminals, and deployment device for poor connections or corrosion.
B1016	Passenger Deployment Loop Resistance Low	Check the passenger deployment loop for low resistance or a short circuit. Inspect the wiring, connectors, terminals, and deployment device according to the manufacturer’s SRS procedure.
B1017	Passenger Deployment Loop Open	Check the passenger deployment loop for an open circuit. Inspect the wiring, connectors, terminals, and deployment device for damaged or disconnected connections.
B1018	Passenger Deployment Loop Short to GND	Check the passenger deployment loop for a short to ground. Inspect the wiring, connectors, and terminals for damaged insulation or contact with ground.
B1019	Passenger Deploy. Loop Short to Voltage	Check the passenger deployment loop for a short to battery or another voltage source. Inspect the wiring, connectors, and terminals for damaged insulation or incorrect connections.
B1021	Driver Deployment Loop Resistance high	Check the driver deployment loop for excessive resistance. Inspect the wiring, connectors, terminals, and deployment device for corrosion, loose connections, or damaged wiring.
B1022	Driver Deployment Loop Resistance Low	Check the driver deployment loop for low resistance or a short circuit. Inspect the wiring, connectors, terminals, and deployment device according to the manufacturer’s SRS procedure.
B1023	Integral Switch Performance	Check the integral switch and related circuit for proper operation. Inspect the switch, wiring, connectors, power supply, and control module input for an incorrect or unstable signal.
B1024	Driver Deployment Loop Short to Ground	Check the driver deployment loop for a short to ground. Inspect the wiring, connectors, and terminals for damaged insulation or contact with ground.
B1025	Driver Deployment Loop Short to Voltage	Check the driver deployment loop for a short to battery or another voltage source. Inspect the wiring, connectors, and terminals for damaged insulation or incorrect connections.
B1026	Driver Deployment Loop Open	Check the driver deployment loop for an open circuit. Inspect the wiring, connectors, terminals, and deployment device for damaged or disconnected connections.
B1035	Discr. Sensor Closed or Short to GND	Check the discrete sensor circuit for a continuously closed condition or short to ground. Inspect the sensor, wiring, connectors, and control module input.
B1036	Discr. Sensor Open or Short to Voltage	Check the discrete sensor circuit for an open circuit or short to voltage. Inspect the sensor, wiring, connectors, and control module input for damaged or incorrect connections.
B1045	Audio Output 3 Circuit (Radio)	Check Audio Output 3 wiring, connectors, and the radio/head unit output. Inspect for an open or short circuit and verify the audio signal and speaker connection.
B1051	Frontal Air Bag and Preten Deployment	Check the SRS system for a recorded frontal airbag and pretensioner deployment event. Inspect the affected airbags, pretensioners, wiring, and SDM according to the manufacturer’s post-deployment procedure.
B1053	Deployment Commanded w/Loop Malfunction	Check the SRS system for a deployment event and stored deployment-loop faults. Inspect the affected airbags, pretensioners, wiring, and SDM before clearing the codes.
B1054	Infl Rst IP Module Switch Circuit Failure	Check the inflatable restraint instrument-panel module switch circuit. Inspect the switch, wiring, connectors, power supply, and SDM input for an open or short circuit.
B1055	Audio Output 4 Circuit (Radio)	Check Audio Output 4 wiring, connectors, and the radio/head unit output. Inspect for an open or short circuit and verify the audio signal and speaker connection.
B1061	Lamp Circuit Failure	Check the affected lamp circuit, including the bulb/LED, fuse, wiring, connectors, and control module output. Inspect for an open or short circuit and verify proper lamp operation.
B1071	Internal SDM Failure	Check the Sensing and Diagnostic Module (SDM) for related fault codes. Verify power, ground, and communication circuits. If the internal fault remains, repair or replace the SDM according to the manufacturer’s procedure.
B1115	Passenger Deploy. Loop Resistance high	Check the passenger deployment loop for excessive resistance. Inspect the wiring, connectors, terminals, and deployment device for loose connections, corrosion, or damaged wiring.
B1116	Passenger Deploy. Loop Resistance Low	Check the passenger deployment loop for low resistance or a short circuit. Inspect the wiring, connectors, terminals, and deployment device according to the manufacturer’s SRS procedure.
B1117	Passenger Deployment Loop Open	Check the passenger deployment loop for an open circuit. Inspect the wiring, connectors, terminals, and deployment device for damaged or disconnected connections.
B1121	Driver Deployment Loop Resistance high	Check the driver deployment loop for excessive resistance. Inspect the wiring, connectors, terminals, and deployment device for loose connections, corrosion, or damaged wiring.
B1122	Driver Deployment Loop Resistance Low	Check the driver deployment loop for low resistance or a short circuit. Inspect the wiring, connectors, terminals, and deployment device according to the manufacturer’s SRS procedure.
B1124	Driver/Passenger Deploy. Loop Short to GND	Check the driver/passenger deployment loop for a short to ground. Inspect the wiring, connectors, and terminals for damaged insulation or contact with ground.
B1125	Driver/Pass Deploy Loop Short to Voltage	Check the driver/passenger deployment loop for a short to battery or another voltage source. Inspect the wiring, connectors, and terminals for damaged insulation or incorrect connections.
B1126	Driver Deployment Loop Open	Check the driver deployment loop for an open circuit. Inspect the wiring, connectors, terminals, and deployment device for damaged or disconnected connections.
B1131	Passenger Pretensioner Loop Resistance high	Check the passenger pretensioner deployment loop for excessive resistance. Inspect the wiring, connectors, terminals, and pretensioner connection for corrosion, loose connections, or damaged wiring.
B1132	Passenger Pretensioner Loop Resistance Low	Check the passenger pretensioner deployment loop for low resistance or a short circuit. Inspect the wiring, connectors, and terminals according to the manufacturer’s SRS procedure.
B1134	Passenger Pretensioner Loop Open	Check the passenger pretensioner deployment loop for an open circuit. Inspect the wiring, connectors, terminals, and pretensioner connection for damage or disconnection.
B1135	Discr. Sensor Closed or Short to GND	Check the discrete sensor circuit for a continuously closed condition or short to ground. Inspect the sensor, wiring, connectors, and control module input.
B1136	Discr. Sensor Open or Short to Voltage	Check the discrete sensor circuit for an open circuit or short to voltage. Inspect the sensor, wiring, connectors, and control module input for damaged or incorrect connections.
B1141	Driver Pretensioner Loop Resistance high	Check the driver pretensioner deployment loop for excessive resistance. Inspect the wiring, connectors, terminals, and pretensioner connection for corrosion, loose connections, or damaged wiring.
B1142	Driver Pretens. Deploy. Loop Res. Low	Check the driver pretensioner deployment loop for low resistance or a short circuit. Inspect the wiring, connectors, and terminals according to the manufacturer’s SRS procedure.
B1144	Driver/Pass Pretens. Loop Short to GND	Check the driver/passenger pretensioner deployment loop for a short to ground. Inspect the wiring, connectors, and terminals for damaged insulation or contact with ground.
B1145	Driver/Pass Pretens. Loop Short to Volt	Check the driver/passenger pretensioner deployment loop for a short to battery or another voltage source. Inspect the wiring, connectors, and terminals for damaged insulation or incorrect connections.
B1146	Driver Pretensioner Loop Open	Check the driver pretensioner deployment loop for an open circuit. Inspect the wiring, connectors, terminals, and pretensioner connection for damage or disconnection.
B1147	Driver Side Air Bag System Malfunction	Check the driver-side airbag system for related fault codes. Inspect the airbag module, deployment loop, wiring, connectors, and SDM according to the manufacturer’s SRS diagnostic procedure.
B1148	Passenger Side Air Bag System Malfunction	Check the passenger-side airbag system for related fault codes. Inspect the airbag module, deployment loop, wiring, connectors, and SDM according to the manufacturer’s SRS diagnostic procedure.
B1151	Deployment Commanded Frontal	Check the SRS system for a recorded frontal deployment event. Inspect the deployed airbags, pretensioners, wiring, and SDM according to the manufacturer’s post-deployment procedure.
B1152	Data Area Full	Check the SDM for stored deployment or crash data. Follow the manufacturer’s procedure for clearing, resetting, or replacing the SDM when the data area is full.
B1153	Deployment Commanded w/Loop Malfunction	Check the SRS system for a deployment event and stored deployment-loop faults. Inspect the affected airbags, pretensioners, wiring, and SDM before clearing the codes.
B1155	SDM Calibration mismatch	Check the Sensing and Diagnostic Module (SDM) calibration and configuration. Reprogram or recalibrate the SDM using the manufacturer’s approved diagnostic equipment.
B1159	Loss of Serial Data-Key Not Received	Check communication between the relevant control modules and the security/key system. Inspect wiring, connectors, power supply, and communication circuits for interruptions or faults.
B1160	Loss of Serial Data VIN Not Received	Check communication between the SDM and other vehicle control modules for VIN data. Inspect the communication network, wiring, connectors, and module configuration.
B1161	Lamp Circuit Failure	Check the affected indicator lamp circuit, including the bulb/LED, wiring, connectors, fuse, and control module output. Verify proper lamp operation.
B1163	Loss of Serial Data-No Lamp Response	Check communication between the control module and the instrument cluster/indicator lamp. Inspect the communication network, wiring, connectors, and module outputs.
B1171	Internal SDM Failure	Check the Sensing and Diagnostic Module (SDM) for related fault codes. Verify power, ground, and communication circuits. If the internal fault remains, repair or replace the SDM according to the manufacturer’s procedure.
B1245	CD Changer Not Responding	Check the CD changer power supply, wiring, connectors, and communication circuit. Verify the changer mechanism and communication with the radio/head unit.
B1259	The digital radio receiver detects an antenna Fault	Check the digital radio antenna, antenna cable, connectors, and digital radio receiver. Inspect for an open or short circuit and verify antenna signal reception.
B1271	Theft Lock Enabled VIN does Not match expect value	Verify the VIN stored in the affected control module against the vehicle VIN. Check module programming and perform the required theft/security relearn or reprogramming procedure.
B1310	Ambient Air Temperature Sensor Failure	Check the ambient air temperature sensor, wiring, and connectors. Verify the sensor signal and compare the displayed temperature with the actual ambient temperature.
B1311	Outside Air Temp Sensor Short Circuit	Check the outside air temperature sensor circuit for a short circuit. Inspect the sensor, wiring, connectors, and terminals for damaged insulation or incorrect connections.
B1312	high Side Temp Sensor Open Circuit	Check the high-side temperature sensor circuit for an open circuit. Inspect the sensor, wiring, connectors, and terminals for loose or damaged connections.
B1313	high Side Temp Sensor Short Circuit	Check the high-side temperature sensor circuit for a short circuit. Inspect the sensor, wiring, connectors, and terminals for damaged insulation or incorrect connections.
B1314	Evaporator Inlet Temp Sensor Open Circuit	Check the evaporator inlet temperature sensor circuit for an open circuit. Inspect the sensor, wiring, connectors, and terminals for poor or damaged connections.
B1315	Evaporator Inlet Temp Sensor Short Circuit	Check the evaporator inlet temperature sensor circuit for a short circuit. Inspect the sensor, wiring, connectors, and terminals for damaged insulation or incorrect connections.
B1316	In car Temperature Sensor Open Circuit	Check the in-car temperature sensor circuit for an open circuit. Inspect the sensor, wiring, connectors, and terminals for loose or damaged connections.
B1317	In car Air Temperature Sensor	Check the in-car air temperature sensor, wiring, and connectors. Verify the sensor signal and compare the reading with the actual cabin temperature.
B1318	LH Sun Load Sensor Fault	Check the left-hand sunload sensor, wiring, connectors, power supply, and ground. Verify the sensor signal and inspect for an open or short circuit.
B1319	Sunload Sensor Short Circuit	Check the sunload sensor circuit for a short circuit. Inspect the sensor, wiring, connectors, and terminals for damaged insulation or incorrect connections.
B1321	A/C Low Side Temperature Sensor Fault	Check the A/C low-side temperature sensor, wiring, and connectors. Verify the sensor signal and compare the reading with the actual refrigerant system temperature.
B1324	A/C Refrigerant Overpressure	Check the A/C refrigerant pressure using the manufacturer’s specified procedure. Inspect refrigerant charge level, pressure sensor, condenser airflow, wiring, and connectors.
B1327	Vehicle system voltage below 9.0 volts	Check the battery condition, charging system, alternator output, battery terminals, grounds, and power connections. Verify system voltage under normal operating conditions.
B1328	Vehicle system voltage is greater than 15.9 volts	Check the alternator and voltage regulator for excessive charging voltage. Inspect the battery, wiring, grounds, and charging system connections.
B1328	RH Sun Load Sensor Fault	Check the right-hand sunload sensor, wiring, connectors, power supply, and ground. Verify the sensor signal and inspect for an open or short circuit.
B1330	Left A/C Discharge Sensor Fault	Check the left A/C discharge temperature sensor, wiring, and connectors. Verify the sensor signal and compare the reading with the actual discharge air temperature.
B1331	Right A/C Discharge Sensor Fault	Check the right A/C discharge temperature sensor, wiring, and connectors. Verify the sensor signal and compare the reading with the actual discharge air temperature.
B1332	Left Heater Discharge Sensor Fault	Check the left heater discharge temperature sensor, wiring, and connectors. Verify the sensor signal and inspect for an incorrect or unstable temperature reading.
B1333	Right Heater Discharge Sensor Fault	Check the right heater discharge temperature sensor, wiring, and connectors. Verify the sensor signal and inspect for an incorrect or unstable temperature reading.
B1336	Memory seat module (MSM) current exceeds 81 amps	Check the memory seat module and seat motors for excessive current draw or mechanical binding. Inspect wiring, connectors, fuses, and seat mechanisms for short circuits or obstructions.
B1340	Air Mix Door One Movement Fault	Check Air Mix Door #1 actuator, wiring, connectors, and power supply. Verify actuator movement and inspect the door mechanism for binding or obstruction.
B1341	Air Mix Door Two Movement Fault	Check Air Mix Door #2 actuator, wiring, connectors, and power supply. Verify actuator movement and inspect the door mechanism for binding or obstruction.
B1343	Air Inlet Door Movement Fault	Check the air inlet door actuator, wiring, connectors, and power supply. Verify actuator movement and inspect the door mechanism for binding or obstruction.
B1344	HeaterDefrost/AC Door Movement Fault	Check the heater/defrost/A/C door actuator, wiring, connectors, and power supply. Verify actuator movement and inspect the door mechanism for binding or obstruction.
B1347	Very Low A/C Refrigerant Warning	Check the A/C refrigerant charge and inspect the system for leaks. Verify the refrigerant pressure sensor and inspect the A/C system for insufficient refrigerant.
B1348	Very Low A/C Refrigerant Pressure	Check A/C system pressure and refrigerant level. Inspect for refrigerant leaks, a faulty pressure sensor, damaged wiring, or other causes of low system pressure.
B1350	Engine Coolant Over-Temperature	Check the engine coolant level, cooling fans, thermostat, radiator, water pump, and coolant temperature sensor. Inspect the cooling system for leaks or restricted coolant flow.
B1372	Device Ignition 1 Circuit Low	Check the Ignition 1 circuit for low voltage. Inspect the ignition switch, fuse, relay, wiring, connectors, and control module power supply for excessive resistance or a short to ground.
B1375	Device Ignition 3 (ON) Circuit	Check the Ignition 3 circuit, including the ignition switch, fuses, relay, wiring, connectors, and related control module inputs/outputs.
B1377	Device Ignition 3 (ON) Circuit Low (BCM)	Check the BCM Ignition 3 output for low voltage. Inspect the fuse, relay, wiring, connectors, and circuit for a short to ground or excessive resistance.
B1378	Device Ignition 3 (ON) Circuit High (BCM)	Check the BCM Ignition 3 circuit for excessive voltage. Inspect the BCM output, wiring, connectors, and related loads for an open circuit or short to battery voltage.
B1382	Device Ignition ACCESSORY Circuit Low	Check the accessory ignition circuit for low voltage. Inspect the ignition switch, fuse, relay, wiring, connectors, and circuit grounds for excessive resistance or a short to ground.
B1390	Device Voltage Reference Input Circuit Malfunction	Check the voltage reference input circuit for incorrect voltage. Inspect the related sensors, wiring, connectors, power supply, and control module for an open or short circuit.
B1396	Device Voltage Reference Output 1 Circuit Range Performance	Check Voltage Reference Output 1 for an incorrect or unstable voltage. Inspect connected sensors, wiring, connectors, and the control module for excessive circuit load or a short circuit.
B1399	Loss of KDD Communications	Check communication between the KDD system and related control modules. Inspect the communication wiring, connectors, power supply, grounds, and module configuration.
B1420	seat Switch Input Status	Check the seat switch inputs and related wiring. Inspect the switches, connectors, power supply, and control module inputs for an incorrect or inconsistent signal.
B1422	Device Power Moding Malfunction	Check the vehicle power-mode circuits and related control modules. Inspect battery voltage, ignition/accessory inputs, wiring, connectors, and module communication.
B1438	IPC high Voltage Output Overcurrent to IPM	Check the instrument panel cluster (IPC) output circuit for excessive current. Inspect the wiring, connectors, connected loads, and IPM circuit for a short or excessive electrical load.
B1440	Power Mode Master Input circuits mismatch	Check the power-mode master input circuits for conflicting signals. Inspect the ignition switch, wiring, connectors, BCM inputs, and related power-mode circuits.
B1480	Battery Rundown Protection Circuit Malfunction	Check the battery rundown protection circuit, BCM, wiring, connectors, and related loads. Verify that the system correctly controls power to prevent excessive battery discharge.
B1482	Battery Rundown Protection Circuit Low (BCM)	Check the BCM battery rundown protection output for low voltage. Inspect the wiring, connectors, fuses, and related loads for a short to ground or excessive current draw.
B1513	Voltage falls below 10.5 volts with the engine is running	Check the charging system, battery, alternator output, battery terminals, grounds, and power connections. Inspect for loose connections or excessive voltage drop.
B1514	Voltage is greater than 16.2 volts with the engine running	Check the alternator and voltage regulator for excessive charging voltage. Inspect the battery, wiring, grounds, and charging system connections.
B1550	Mirror Left Front or Right Front Select Switch Circuit	Check the mirror select switch, wiring, connectors, and power supply. Verify proper switch operation and inspect the circuit for an open or short condition.
B1552	Keep Alive Memory (KAM) Error	Check the control module power supply, battery voltage, grounds, fuses, and KAM circuit. Inspect for intermittent power loss or voltage interruptions.
B1556	IPC EEPROM Odo/Configuration Error	Check the instrument panel cluster (IPC) EEPROM data and configuration. Verify module programming and perform the manufacturer’s approved reprogramming procedure if required.
B1557	EEPROM Calibration Error	Check the module calibration data for corruption or mismatch. Verify power and ground circuits, then reprogram or recalibrate the module using approved diagnostic equipment.
B1558	BCM EPROM Checksum Error	Check the BCM for corrupted EPROM/program data. Verify BCM power, ground, and communication circuits, then reprogram or replace the BCM if necessary.
B1586	Mirror Horiz. Pos Sensor-Out of Range/Open	Check the mirror horizontal position sensor, wiring, and connectors for an open or out-of-range signal. Inspect the mirror mechanism for restricted movement.
B1591	Mirror Vert. Pos Sensor-Out of Range/Open	Check the mirror vertical position sensor, wiring, and connectors for an open or out-of-range signal. Inspect the mirror mechanism for restricted movement.
B1652	Loss of Keep Alive Memory (KAM)	Check the module battery power supply, fuses, grounds, and KAM circuit. Inspect for intermittent voltage loss or poor electrical connections.
B1656	EEPROM Write Error	Check the control module power supply, ground, and communication circuits. If the fault remains, verify EEPROM integrity and reprogram or replace the module as required.
B1658	EEPROM Checksum Error	Check the control module for corrupted EEPROM data. Verify power and ground circuits, then reprogram or replace the module according to the manufacturer’s procedure.
B1697	Mirror Switch L Input Shorted to Ground	Check the left mirror switch input circuit for a short to ground. Inspect the switch, wiring, connectors, and terminals for damaged insulation or incorrect connections.
B1698	Mirror Switch L Up Input Stuck high	Check the left mirror UP switch input for a continuously high signal. Inspect the switch, wiring, connectors, and control module input for an open circuit or short to voltage.
B1702	Mirror Switch L Input Shorted to Ground	Check the left mirror switch input circuit for a short to ground. Inspect the switch, wiring, connectors, and terminals for damaged wiring or incorrect connections.
B1703	Mirror Switch L Down Input Stuck high	Check the left mirror DOWN switch input for a continuously high signal. Inspect the switch, wiring, connectors, and control module input for an open circuit or short to voltage.
B1707	Mirror Switch R Input Shorted to Ground	Check the right mirror switch input circuit for a short to ground. Inspect the switch, wiring, connectors, and terminals for damaged insulation or incorrect connections.
B1708	Mirror Switch R Up Input Stuck High	Check the right mirror UP switch input for a continuously high signal. Inspect the switch, wiring, connectors, and control module input for an open circuit or short to voltage.
B1710	Switched antenna Error	Check the switched antenna, power supply, wiring, and connectors. Inspect for an open or short circuit and verify proper antenna operation.
B1712	Mirror Switch R Input Shorted to Ground	Check the right mirror switch input circuit for a short to ground. Inspect the switch, wiring, connectors, and terminals for damaged insulation or incorrect connections.
B1713	Mirror Switch R Down Input Stuck High	Check the right mirror DOWN switch input for a continuously high signal. Inspect the switch, wiring, connectors, and control module input for an open circuit or short to voltage.
B1717	Mirror Power Fold Control Switch Shorted Low	Check the power-fold mirror control switch circuit for a low signal or short to ground. Inspect the switch, wiring, connectors, and control module input.
B1718	Power Folding Mirror Switch Input Circuit high	Check the power-folding mirror switch input for excessive voltage. Inspect the switch, wiring, connectors, and control module input for an open circuit or short to battery voltage.
B1720	Mirror Up and Down Control Switch Circuit	Check the mirror UP/DOWN control switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1721	Mirror Left and Right Control Switch Circuit	Check the mirror LEFT/RIGHT control switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1723	Mirror Motor Control Circuit 1 Performance	Check Mirror Motor Control Circuit 1, including the mirror motor, wiring, connectors, and control module output. Verify motor operation and inspect for excessive resistance or mechanical binding.
B1724	Mirror Motor Control Circuit 2 Performance	Check Mirror Motor Control Circuit 2, including the mirror motor, wiring, connectors, and control module output. Verify motor operation and inspect for excessive resistance or mechanical binding.
B1735	Driver seat Front Up Switch Circuit Malfunction (Power seat Switch Circuit)	Check the driver seat front-up switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1740	Driver seat Front Down Switch Circuit Malfunction	Check the driver seat front-down switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1745	Driver seat Rear Up Switch Circuit Malfunction	Check the driver seat rear-up switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1750	Driver seat Rear Down Switch Circuit Malfunction	Check the driver seat rear-down switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1755	Driver seat Asm Forward Switch Circuit Malfunction	Check the driver seat forward switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1760	Driver seat Asm Rearward Switch Circuit Malfunction	Check the driver seat rearward switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1760	CD Changer Not Responding	Check the CD changer power supply, wiring, connectors, and communication circuit. Verify communication with the radio/head unit and inspect the changer mechanism.
B1761	CD Changer tracking Fault	Check the CD changer tracking mechanism and optical assembly. Inspect the changer for mechanical obstruction, contamination, or a faulty tracking mechanism.
B1762	CD Changer focus Error	Check the CD changer optical pickup and focus mechanism. Inspect for contamination, mechanical obstruction, or a faulty optical assembly.
B1763	CD player Load/unload Fault	Check the CD loading mechanism for obstruction or mechanical binding. Inspect the loading motor, gears, sensors, wiring, and connectors.
B1770	Cassette Not Responding	Check the cassette mechanism, power supply, wiring, connectors, and communication with the radio/head unit. Verify proper cassette mechanism operation.
B1771	Cassette tape slow	Check the cassette drive mechanism, belt, rollers, and motor. Inspect for mechanical binding, worn components, or contamination affecting tape speed.
B1772	Cassette head cleaning required	Clean the cassette player head and inspect the tape mechanism for contamination. Verify proper playback operation after cleaning.
B1780	Theft Lock Enabled	Verify the vehicle security/theft-lock status and confirm the correct VIN and module configuration. Perform the manufacturer’s approved security relearn or reset procedure if required.
B1802	Inadv. Pwr Short to Ground	Check the inadvertent power circuit for a short to ground. Inspect wiring, connectors, fuses, and related loads for damaged insulation or excessive current draw.
B1805	Ignition Switch Problem	Check the ignition switch and related circuits for proper operation. Inspect the switch, wiring, connectors, fuses, and control module inputs for an incorrect ignition signal.
B1815	Driver Recline Forward Switch Circuit Malfunction	Check the driver seat recline-forward switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1820	Driver Recline Rearward Switch Circuit Malfunction	Check the driver seat recline-rearward switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1825	Driver Recline Sensor Circuit Malfunction	Check the driver seat recline position sensor, wiring, connectors, and power supply. Verify the sensor signal and inspect the recline mechanism for restricted movement.
B1830	Driver Lumbar Forward Switch Circuit Malfunction	Check the driver lumbar-forward switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1835	Driver Lumbar Rearward Switch Circuit Malfunction	Check the driver lumbar-rearward switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1840	Driver Lumbar Up Switch Circuit Malfunction	Check the driver lumbar-up switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1845	Driver Lumbar Down Switch Circuit Malfunction	Check the driver lumbar-down switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1850	Driver Lumbar Horiz Sensor Circuit Malfunction	Check the driver lumbar horizontal position sensor, wiring, connectors, and power supply. Verify the sensor signal and inspect the lumbar mechanism for restricted movement.
B1860	Driver Lumbar Vert Sensor Circuit Malfunction	Check the driver lumbar vertical position sensor, wiring, connectors, and power supply. Verify the sensor signal and inspect the lumbar mechanism for restricted movement.
B1870	Driver Belt Tower Up Switch Circuit Malfunction	Check the driver belt tower UP switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1875	Driver Belt Tower Down Switch Circuit Malfunction	Check the driver belt tower DOWN switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B1900	Driver Belt Tower Vert Sensor Circuit Malfunction	Check the driver belt tower vertical position sensor, wiring, connectors, and power supply. Verify the sensor signal and inspect the belt tower mechanism for restricted movement.
B1910	Generator L-Terminal Open Circuit	Check the generator L-terminal circuit for an open circuit. Inspect the alternator, wiring, connectors, instrument cluster/BCM connections, and related fuse for poor or damaged connections.
B1911	Generator L-Terminal Problem	Check the generator L-terminal signal and charging system. Inspect the alternator, wiring, connectors, and control module circuit for an incorrect or unstable signal.
B1913	Heated seat Switch Mode Input Shorted to Battery	Check the heated seat switch mode input for a short to battery voltage. Inspect the switch, wiring, connectors, and control module input for damaged insulation or incorrect connections.
B1918	Heated seat Switch Temperature Input Shorted to Battery	Check the heated seat temperature input circuit for a short to battery voltage. Inspect the switch, wiring, connectors, and control module input for damaged insulation or incorrect connections.
B1970	Exterior Lamp Power	Check the exterior lamp power circuit, including fuses, relays, wiring, connectors, and control module output. Inspect for an open or short circuit and verify proper lamp operation.
B1971	Inadvertent Power	Check the inadvertent power circuit for an unexpected voltage or power feed. Inspect wiring, connectors, fuses, and related control module circuits for a short or incorrect connection.
B1972	Low Power Driver Fault	Check the low-side power driver circuit for excessive resistance or an incorrect output. Inspect the control module, wiring, connectors, and connected load for a short or excessive current draw.
B1973	high Power Control Fault	Check the high-side power control circuit for an incorrect output or excessive current. Inspect the control module, wiring, connectors, fuse, and connected load for a short or open circuit.
B1981	Battery Voltage Low	Check the battery state of charge, battery terminals, grounds, charging system, and alternator output. Inspect for excessive voltage drop or poor electrical connections.
B1982	Device Power Circuit high	Check the device power circuit for excessive voltage. Inspect the power supply, wiring, connectors, and control module output for a short to battery voltage or incorrect power source.
B1983	Device Power Circuit Low	Check the device power circuit for low voltage. Inspect the power supply, wiring, connectors, grounds, fuses, and control module output for excessive resistance or a short to ground.
B2075	Lumbar Switch Control Circuit	Check the lumbar switch control circuit, including the switch, wiring, connectors, and power supply. Verify switch operation and inspect for an open or short circuit.
B2080	Lumbar Switch Control Circuit	Check the lumbar switch control circuit, wiring, connectors, and control module input. Verify proper switch operation and inspect for an open or short circuit.
B2085	Lumbar Switch Control Circuit	Inspect the lumbar switch control circuit, wiring, connectors, and power supply. Verify the switch signal and check for damaged or loose connections.
B2090	Lumbar Switch Control Circuit	Check the lumbar switch control circuit, wiring, connectors, and control module input. Verify proper switch operation and inspect for an open or short condition.
B2101	Recline Aft Switch Failed	Check the seat recline rearward (aft) switch, wiring, connectors, and power supply. Verify switch operation and inspect the recline mechanism for binding or obstruction.
B2102	Recline Forward Switch Failed	Check the seat recline forward switch, wiring, connectors, and power supply. Verify switch operation and inspect the recline mechanism for binding or obstruction.
B2103	Rear Vertical Down Switch Failed	Check the rear vertical down seat switch, wiring, connectors, and power supply. Verify switch operation and inspect the seat mechanism for binding or obstruction.
B2104	Rear Vertical Up Switch Failed	Check the rear vertical up seat switch, wiring, connectors, and power supply. Verify switch operation and inspect the seat mechanism for binding or obstruction.
B2105	Horizontal Aft Switch Failed	Check the horizontal aft seat switch, wiring, connectors, and power supply. Verify switch operation and inspect the seat track for binding or obstruction.
B2106	Horizontal Forward Switch Failed	Check the horizontal forward seat switch, wiring, connectors, and power supply. Verify switch operation and inspect the seat track for binding or obstruction.
B2107	Front Vertical Down Switch Failed	Check the front vertical down seat switch, wiring, connectors, and power supply. Verify switch operation and inspect the seat mechanism for binding or obstruction.
B2108	Front Vertical Up Switch Failed	Check the front vertical up seat switch, wiring, connectors, and power supply. Verify switch operation and inspect the seat mechanism for binding or obstruction.
B2109	Lumbar Aft Switch Failed	Check the lumbar aft switch, wiring, connectors, and power supply. Verify switch operation and inspect the lumbar mechanism for binding or obstruction.
B2110	Lumbar Forward Switch Failed	Check the lumbar forward switch, wiring, connectors, and power supply. Verify switch operation and inspect the lumbar mechanism for binding or obstruction.
B2111	Lumbar Down Switch Failed	Check the lumbar down switch, wiring, connectors, and power supply. Verify switch operation and inspect the lumbar mechanism for binding or obstruction.
B2112	Lumbar Up Switch Failed	Check the lumbar up switch, wiring, connectors, and power supply. Verify switch operation and inspect the lumbar mechanism for binding or obstruction.
B2115	Recline Sensor Failed	Check the seat recline position sensor, wiring, connectors, and power supply. Verify the sensor signal and inspect the recline mechanism for restricted movement.
B2116	Rear Vertical Sensor Failed	Check the rear vertical seat position sensor, wiring, connectors, and power supply. Verify the sensor signal and inspect the seat mechanism for restricted movement.
B2117	Horizontal Sensor Failed	Check the seat horizontal position sensor, wiring, connectors, and power supply. Verify the sensor signal and inspect the seat track for restricted movement.
B2118	Front Vertical Sensor Failed	Check the front vertical seat position sensor, wiring, connectors, and power supply. Verify the sensor signal and inspect the seat mechanism for restricted movement.
B2119	Lumbar Forward/Aft Sensor Failed	Check the lumbar forward/aft position sensor, wiring, connectors, and power supply. Verify the sensor signal and inspect the lumbar mechanism for restricted movement.
B2120	Lumbar Up/Down Sensor Failed	Check the lumbar up/down position sensor, wiring, connectors, and power supply. Verify the sensor signal and inspect the lumbar mechanism for restricted movement.
B2130	Driver Memory 1 Select Switch Circuit Malfunction	Check the Driver Memory 1 switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2131	Driver Memory 2 Select Switch Circuit Malfunction	Check the Driver Memory 2 switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2132	Driver Memory Exit Exit/Off Switch Circuit Malfunction	Check the driver memory Exit/Off switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2133	Driver Memory Set Switch Circuit Malfunction	Check the driver memory Set switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2140	Mirror Up Control Switch Circuit Malfunction	Check the mirror UP control switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2141	Mirror Down Control Switch Circuit Malfunction	Check the mirror DOWN control switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2142	Mirror Left Control Switch Circuit Malfunction	Check the mirror LEFT control switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2143	Mirror Right Control Switch Circuit Malfunction	Check the mirror RIGHT control switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2144	Left Front Mirror Vertical Position Sensor Circuit Low	Check the left front mirror vertical position sensor circuit for low voltage. Inspect the sensor, wiring, connectors, power supply, and ground for a short to ground or excessive resistance.
B2145	Left Front Mirror Vertical Position Sensor Circuit high	Check the left front mirror vertical position sensor circuit for excessive voltage. Inspect the sensor, wiring, connectors, and control module input for an open circuit or short to battery voltage.
B2146	Left Front Mirror Horizontal Position Sensor Circuit Low	Check the left front mirror horizontal position sensor circuit for low voltage. Inspect the sensor, wiring, connectors, power supply, and ground for a short to ground or excessive resistance.
B2147	Left Front Mirror Horizontal Position Sensor Circuit high	Check the left front mirror horizontal position sensor circuit for excessive voltage. Inspect the sensor, wiring, connectors, and control module input for an open circuit or short to battery voltage.
B2148	Right Front Mirror Vertical Position Sensor Circuit Low	Check the right front mirror vertical position sensor circuit for low voltage. Inspect the sensor, wiring, connectors, power supply, and ground for a short to ground or excessive resistance.
B2149	Right Front Mirror Vertical Position Sensor Circuit high	Check the right front mirror vertical position sensor circuit for excessive voltage. Inspect the sensor, wiring, connectors, and control module input for an open circuit or short to battery voltage.
B2150	Right Front Mirror Horizontal Position Sensor Circuit Low	Check the right front mirror horizontal position sensor circuit for low voltage. Inspect the sensor, wiring, connectors, power supply, and ground for a short to ground or excessive resistance.
B2151	Right Front Mirror Horizontal Position Sensor Circuit high	Check the right front mirror horizontal position sensor circuit for excessive voltage. Inspect the sensor, wiring, connectors, and control module input for an open circuit or short to battery voltage.
B2175	Tilt/Telescope Module Manual Switch Fail	Check the tilt/telescope steering column switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open, short, or incorrect input signal.
B2200	Left Front Window Switch Stuck In Up Position	Check the left front window UP switch for a continuously active signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2201	Left Front Window Switch Stuck In Down Position	Check the left front window DOWN switch for a continuously active signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2202	Right Front Window Switch Stuck In Up Position	Check the right front window UP switch for a continuously active signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2203	Right Front Window Switch Stuck In Down Position	Check the right front window DOWN switch for a continuously active signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2204	Left Rear Window Switch Stuck In Up Position	Check the left rear window UP switch for a continuously active signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2205	Left Rear Window Switch Stuck In Down Position	Check the left rear window DOWN switch for a continuously active signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2206	Right Rear Window Switch Stuck In Up Position	Check the right rear window UP switch for a continuously active signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2207	Right Rear Window Switch Stuck In Down Position	Check the right rear window DOWN switch for a continuously active signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2212	Right Front Switch on Left Front Door Stuck Up Position	Check the right front window switch located on the left front door for a continuously active UP signal. Inspect the switch, wiring, connectors, and control module input.
B2213	Right Front Switch on Left Front Door Stuck Down Position	Check the right front window switch located on the left front door for a continuously active DOWN signal. Inspect the switch, wiring, connectors, and control module input.
B2214	Left Rear Switch on Left Front Door Stuck Up Position	Check the left rear window switch on the left front door for a continuously active UP signal. Inspect the switch, wiring, connectors, and control module input.
B2215	Left Rear Switch on Left Front Door Stuck Down Position	Check the left rear window switch on the left front door for a continuously active DOWN signal. Inspect the switch, wiring, connectors, and control module input.
B2216	Right Rear Switch on Left Front Door Stuck Up Position	Check the right rear window switch on the left front door for a continuously active UP signal. Inspect the switch, wiring, connectors, and control module input.
B2217	Right Rear Switch on Left Front Door Stuck Down Position	Check the right rear window switch on the left front door for a continuously active DOWN signal. Inspect the switch, wiring, connectors, and control module input.
B2220	Left Front Door Lock/Unlock Switch Stuck In Lock	Check the left front door lock switch for a continuously active LOCK signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2221	Left Front Door Lock/Unlock Switch Stuck Unlock	Check the left front door unlock switch for a continuously active UNLOCK signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2222	Right Front Door Lock/Unlock Switch Stuck In Lock	Check the right front door lock switch for a continuously active LOCK signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2223	Right Front Door Lock/Unlock Switch Stuck Unlock	Check the right front door unlock switch for a continuously active UNLOCK signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2224	Left Rear Door Lock/Unlock Switch Stuck In Lock	Check the left rear door lock switch for a continuously active LOCK signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2226	Right Rear Door Lock/Unlock Switch Stuck In Lock	Check the right rear door lock switch for a continuously active LOCK signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2240	Memory 1 Switch Failed	Check the Memory 1 switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2241	Memory 2 Switch Failed	Check the Memory 2 switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2242	Memory Exit Switch Failed	Check the Memory Exit switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2243	Memory Set Switch Failed	Check the Memory Set switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2310	Hand Set Failure	Check the telephone handset, wiring, connectors, and power supply. Verify communication between the handset and the related control module.
B2311	TRU Failure	Check the Telephone Radio Unit (TRU), including power supply, ground, wiring, connectors, and communication circuits. If the fault remains, diagnose or replace the TRU according to the manufacturer’s procedure.
B2312	Software Failure	Check the affected control module for software or programming errors. Verify module configuration and perform the manufacturer’s approved software update or reprogramming procedure if required.
B2355	Driver Front Vertical Sensor Malfunction	Check the driver seat front vertical position sensor, wiring, connectors, and power supply. Verify the sensor signal and inspect the seat mechanism for restricted movement.
B2365	Driver Rear Vertical Sensor Malfunction	Check the driver seat rear vertical position sensor, wiring, connectors, and power supply. Verify the sensor signal and inspect the seat mechanism for restricted movement.
B2375	Driver seat Asm Horiz Sensor Circuit Malfunction	Check the driver seat horizontal position sensor, wiring, connectors, and power supply. Verify the sensor signal and inspect the seat track for restricted movement.
B2419	Twilight Photocell Circuit Problem	Check the twilight/ambient light sensor, wiring, connectors, power supply, and ground. Verify the sensor signal and inspect the circuit for an open or short condition.
B2420	Twilight Delay Pot Failure	Check the twilight delay potentiometer, wiring, connectors, and control circuit. Verify the potentiometer signal and inspect for an open or short circuit.
B2422	Interior Lamp Rheostat Failure	Check the interior lamp rheostat/dimmer control, wiring, connectors, and power supply. Verify the dimming signal and inspect for an open or short circuit.
B2425	seat Heater Circuit	Check the seat heater circuit, including the heating element, wiring, connectors, fuse, and control module. Inspect for an open circuit, short circuit, or excessive resistance.
B2430	seat Heater Circuit	Check the seat heater circuit, including the heating element, wiring, connectors, fuse, and control module. Inspect for an open circuit, short circuit, or excessive resistance.
B2435	seat Back Heater Sensor	Check the seat back heater temperature sensor, wiring, and connectors. Verify the sensor signal and inspect for an open or short circuit.
B2440	seat Back Heater Sensor	Check the seat back heater temperature sensor, wiring, and connectors. Verify the sensor signal and inspect for an open or short circuit.
B2455	Open or Short In Cellular Phone Microphone Circuit	Check the cellular phone microphone, wiring, connectors, and microphone input circuit for an open or short condition. Verify the microphone signal and power supply.
B2460	Navigation antenna Selector Circuit high current	Check the navigation antenna selector circuit for excessive current draw. Inspect the antenna selector, wiring, connectors, and related control module for a short or excessive electrical load.
B2461	Navigation ECU Synchronous Signal Error	Check synchronization/communication between the navigation ECU and related modules. Inspect power, ground, communication wiring, connectors, and module configuration.
B2462	GPS Signal Error	Check the GPS antenna, antenna cable, connectors, and navigation ECU. Verify GPS signal reception and inspect the antenna circuit for damage or poor connections.
B2463	Navigation CD player No Disk	Check the navigation CD/DVD drive for a missing or unreadable disc. Inspect the loading mechanism and optical drive if a disc is installed but not detected.
B2464	Navigation CD player Decoding Error	Check the navigation disc and CD/DVD drive. Inspect for an incompatible or damaged disc, optical pickup contamination, or a malfunctioning drive.
B2465	Navigation CD player Data Error	Check the navigation disc and optical drive for data-reading problems. Inspect the disc for damage or contamination and verify proper operation of the drive.
B2466	Navigation VICS Memory Error	Check the navigation VICS memory/data system. Verify power supply, communication, and memory operation, and reinitialize or replace the affected component if required.
B2468	Navigation Display head (NDH) Malfunction	Check the navigation display head for power, ground, communication, and display-related faults. Inspect wiring and connectors and perform module diagnostics or replacement if necessary.
B2470	Daytime Running Lamps Fault	Check the daytime running lamp circuit, including bulbs/LEDs, fuses, relays, wiring, connectors, and control module output. Verify proper DRL operation.
B2470	Cellular Phone Antenna Circuit (2000+)	Check the cellular phone antenna, antenna cable, connectors, and related telephone module. Inspect for an open or short circuit and verify antenna operation.
B2471	Interior Lamp Fault	Check the interior lamp circuit, including bulbs/LEDs, fuses, wiring, connectors, switches, and control module output. Inspect for an open or short circuit.
B2472	Low Beam Fault	Check the low-beam headlamp circuit, including bulbs/LEDs, fuses, relays, wiring, connectors, and control module output. Verify proper low-beam operation.
B2473	high Beam Fault	Check the high-beam headlamp circuit, including bulbs/LEDs, fuses, relays, wiring, connectors, and control module output. Verify proper high-beam operation.
B2474	Navigation Display head (NDH) Back Lighting Malfunction	Check the navigation display backlight circuit, power supply, wiring, connectors, and display head. Verify the backlight control signal and inspect for an internal display fault.
B2475	Navigation Display head (NDH) Auxiliary Input Malfunction	Check the navigation display auxiliary input circuit, wiring, connectors, and connected device. Verify the input signal and inspect for an open or short condition.
B2476	Cellular Phone Select Service Switch Malfunction (keypad Signal Circuit)	Check the cellular phone select/service switch and keypad signal circuit. Inspect the switch, wiring, connectors, and control module input for an open, short, or incorrect signal.
B2477	Reverse Lamp Relay Shorted to Ground	Check the reverse lamp relay control circuit for a short to ground. Inspect the relay, wiring, connectors, and BCM output for damaged insulation or an incorrect connection.
B2478	Reverse Lamp Shorted to Battery	Check the reverse lamp circuit for an unintended connection to battery voltage. Inspect the wiring, connectors, relay, bulbs/LEDs, and BCM output for a short to voltage.
B2482	Cellular Phone Select Service Switch Range/Performance	Check the cellular phone select/service switch and its signal circuit. Inspect the switch, wiring, connectors, and control module input for an incorrect or out-of-range signal.
B2483	Global Positioning System (GPS) antenna Circuit	Check the GPS antenna, antenna cable, connectors, and navigation module. Inspect the circuit for an open or short condition and verify GPS signal reception.
B2484	Global Positioning System (GPS) antenna Circuit	Check the GPS antenna circuit, antenna cable, connectors, and navigation module. Verify the antenna power/signal circuit and inspect for an open, short, or poor connection.
B2502	Auto Trans Shift Lock Control Shorted to Ground	Check the shift-lock control circuit for a short to ground. Inspect the shift-lock solenoid, relay, wiring, connectors, and control module output.
B2503	Park Gear (Auto Trans Shift Lock Control) Relay Shorted to Batt	Check the park-gear shift-lock relay circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output.
B2507	Voltage from climate control seat module (CCSM) is less than 2.0 volts or greater than 10 volts	Check the climate control seat module power and signal circuits. Verify supply voltage, grounds, wiring, connectors, and the related temperature/control sensor for an out-of-range signal.
B2510	Steering Wheel Controls HVAC Key Stuck	Check the steering wheel HVAC control key for a continuously active signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2511	Steering Wheel Controls Conv Key Stuck	Check the steering wheel convenience-control key for a continuously active signal. Inspect the switch, wiring, connectors, and control module input for a stuck switch or short circuit.
B2512	Strng Wheel Controls Illegal A/D Values	Check the steering wheel control switch input for an incorrect analog-to-digital (A/D) value. Inspect the switches, wiring, connectors, reference voltage, and control module input.
B2515	Strg Whl Cont Illegal Resistance value	Check the steering wheel control switch circuit for an incorrect resistance value. Inspect the switches, wiring, connectors, and resistor network for an open, short, or incorrect resistance.
B2527	Front Fog Lamp Circuit Low	Check the front fog lamp circuit for low voltage. Inspect the fog lamps, fuse, relay, wiring, connectors, and BCM output for a short to ground or excessive resistance.
B2530	Front Foglamps Control Circuit	Check the front fog lamp control circuit, including the switch, relay, BCM output, wiring, connectors, and lamps. Inspect for an open or short circuit.
B2532	Front Fog Lamps Control Circuit Low (BCM)	Check the BCM front fog lamp output for low voltage. Inspect the wiring, connectors, relay, fuse, and fog lamp circuit for a short to ground or excessive current draw.
B2533	Front Fog Lamps Control Circuit high (BCM)	Check the BCM front fog lamp output for excessive voltage. Inspect the wiring, connectors, relay, and connected load for an open circuit or short to battery voltage.
B2540	Rear Foglamps Control Circuit	Check the rear fog lamp control circuit, including the switch, relay, BCM output, wiring, connectors, and lamps. Inspect for an open or short circuit.
B2550	Storage Mode Entered (Backup Lamps Control Circuit)	Check whether the vehicle is intentionally in storage/transport mode. If storage mode is not intended, verify BCM configuration, backup lamp control circuits, battery voltage, and related wiring.
B2556	Interior Lamp Rheostat Circuit Range	Check the interior lamp rheostat/dimmer circuit for an out-of-range signal. Inspect the rheostat, wiring, connectors, reference voltage, and BCM input.
B2560	RKE Message Validation Error	Check the Remote Keyless Entry (RKE) system communication and message validation. Verify the key fob, receiver, vehicle configuration, battery voltage, and communication between the RKE receiver and BCM.
B2575	Headlamp Control Circuit	Check the headlamp control circuit, including the headlamp switch, relay, fuses, wiring, connectors, and BCM output. Inspect for an open or short circuit.
B2577	Headlamp Relay Output Circuit Low (BCM)	Check the BCM headlamp relay output for low voltage. Inspect the relay, wiring, connectors, fuse, and headlamp circuit for a short to ground or excessive current draw.
B2578	Headlamp Relay Output Circuit high (BCM)	Check the BCM headlamp relay output for excessive voltage. Inspect the relay, wiring, connectors, and connected load for an open circuit or short to battery voltage.
B2580	Headlamp high Beam Control Circuit	Check the high-beam control circuit, including the high-beam switch, relay, fuse, wiring, connectors, and BCM output. Verify proper high-beam operation.
B2585	Parklamp Control Circuit Malfunction	Check the park lamp control circuit, including the switch, relay, fuses, wiring, connectors, and BCM output. Inspect for an open or short circuit.
B2587	Park Lamp Relay Output Circuit Low (BCM)	Check the BCM park lamp relay output for low voltage. Inspect the relay, wiring, connectors, fuse, and park lamp circuit for a short to ground or excessive current draw.
B2588	Park Lamp Relay Output Circuit high (BCM)	Check the BCM park lamp relay output for excessive voltage. Inspect the relay, wiring, connectors, and connected load for an open circuit or short to battery voltage.
B2600	Daytime Running Lamp Control Circuit (BCM)	Check the BCM daytime running lamp control circuit, including wiring, connectors, relays, fuses, and DRL control output. Verify proper DRL operation.
B2602	Daytime Running Lamp Circuit Low (BCM)	Check the BCM DRL output for low voltage. Inspect the wiring, connectors, relay, fuse, and lamps for a short to ground or excessive current draw.
B2603	Daytime Running Lamp Circuit high (BCM)	Check the BCM DRL output for excessive voltage. Inspect the wiring, connectors, relay, and connected load for an open circuit or short to battery voltage.
B2610	Passenger Compartment Dimming 1 Circuit	Check the passenger compartment dimming circuit, including the dimmer control, wiring, connectors, and BCM output. Inspect for an open or short circuit.
B2615	Passenger Compartment Dimming 2 Circuit	Check the passenger compartment dimming circuit, including the dimmer control, wiring, connectors, and BCM output. Inspect for an open or short circuit.
B2620	Display Dimming Input Circuit	Check the display dimming input circuit, wiring, connectors, and control module input. Verify the dimming signal and inspect for an open or short condition.
B2622	Display Dimming Pulse Width Modulation (PWM) Input Circuit Low (BCM)	Check the BCM display-dimming PWM input for low voltage. Inspect the wiring, connectors, dimming control, and BCM input for a short to ground or excessive resistance.
B2623	Display Dimming Pulse Width Modulation (PWM) Input Circuit high (BCM)	Check the BCM display-dimming PWM input for excessive voltage. Inspect the wiring, connectors, dimming control, and BCM input for an open circuit or short to battery voltage.
B2625	Display Dimming Pulse Width Modulation (PWM) Output Circuit	Check the display dimming PWM output circuit, including the BCM, wiring, connectors, and display. Verify the PWM signal and inspect for an open or short circuit.
B2627	Display Dimming Pulse Width Modulation (PWM) Output Circuit Low (BCM)	Check the BCM display-dimming PWM output for low voltage. Inspect the wiring, connectors, display circuit, and connected loads for a short to ground or excessive current draw.
B2628	Display Dimming Pulse Width Modulation (PWM) Output Circuit high (BCM)	Check the BCM display-dimming PWM output for excessive voltage. Inspect the wiring, connectors, display circuit, and connected load for an open circuit or short to battery voltage.
B2641	Delayed Exterior Lighting Ctrl Circuit Range	Check the delayed exterior lighting control circuit for an out-of-range signal. Inspect the switch, wiring, connectors, BCM input/output, and related lighting components.
B2645	Ambient Light Sensor Circuit	Check the ambient light sensor, wiring, connectors, power supply, and ground. Verify the sensor signal and inspect the circuit for an open or short condition.
B2646	Ambient Light Sensor Circuit Range	Check the ambient light sensor signal for an out-of-range value. Inspect the sensor, wiring, connectors, reference voltage, and control module input.
B2647	Ambient Light Sensor Circuit Low (BCM)	Check the BCM ambient light sensor input for low voltage. Inspect the sensor, wiring, connectors, power supply, and ground for a short to ground or excessive resistance.
B2662	Park Lamp Relay Output Circuit Low (BCM)	Check the BCM park lamp relay output for low voltage. Inspect the relay, wiring, connectors, fuse, and park lamp circuit for a short to ground or excessive current draw.
B2697	Headlamp Washer Request Circuit	Check the headlamp washer request switch and circuit. Inspect the switch, wiring, connectors, fuse, washer control module/BCM input, and related components.
B2700	Ignition Shift Interlock Circuit (base number)	Check the ignition shift interlock circuit, including the interlock switch/solenoid, wiring, connectors, power supply, and control module. Verify proper interlock operation.
B2701	Ignition Shift Interlock Circuit Range/Performance	Check the ignition shift interlock circuit for an incorrect or out-of-range signal. Inspect the interlock switch/solenoid, wiring, connectors, and control module input.
B2702	Ignition Shift Interlock Circuit Low	Check the ignition shift interlock circuit for low voltage. Inspect the wiring, connectors, fuse, interlock components, and control module output for a short to ground or excessive resistance.
B2703	Ignition Shift Interlock Circuit high	Check the ignition shift interlock circuit for excessive voltage. Inspect the wiring, connectors, interlock components, and control module output for an open circuit or short to battery voltage.
B2704	Ignition Shift Interlock Circuit Open	Check the ignition shift interlock circuit for an open circuit. Inspect the interlock switch/solenoid, wiring, connectors, fuse, and control module connections.
B2707	Gearshift Unlock Circuit Low (BCM)	Check the BCM gearshift unlock output for low voltage. Inspect the shift-lock solenoid, wiring, connectors, fuse, and control module output for a short to ground or excessive current draw.
B2708	Gearshift Unlock Circuit high (BCM)	Check the BCM gearshift unlock output for excessive voltage. Inspect the shift-lock solenoid, wiring, connectors, and control module output for an open circuit or short to battery voltage.
B2710	PASSKey Open/Shorted Pellet	Check the PASSKey ignition key/resistor pellet and theft-deterrent circuit. Inspect the key, ignition lock cylinder, wiring, connectors, and theft-deterrent module for an open or short condition.
B2711	PASSKey Open/Shorted Pellet After Good Key	Check the PASSKey system after a previously valid key was detected. Inspect the key pellet, ignition lock cylinder contacts, wiring, connectors, and theft-deterrent module for an intermittent open or short.
B2719	CTD-Trunk Tamper Switch Fault	Check the Content Theft Deterrent (CTD) trunk tamper switch and circuit. Inspect the switch, wiring, connectors, trunk latch, and BCM input for an incorrect or intermittent signal.
B2725	ATC Mode Switch Circuit Malfunction	Check the Automatic Temperature Control (ATC) mode switch, wiring, connectors, and control module input. Verify switch operation and inspect for an open, short, or incorrect signal.
B2732	Trunk Release Switch Circuit Low	Check the trunk release switch circuit for low voltage. Inspect the switch, wiring, connectors, fuse, and BCM input for a short to ground or excessive resistance.
B2734	Coded Key Controller Memory Failure	Check the coded-key controller for memory or configuration errors. Verify power and ground circuits and perform the manufacturer’s approved programming or module replacement procedure if required.
B2743	Fog Lamp Switch Circuit high (BCM)	Check the BCM fog lamp switch input for excessive voltage. Inspect the switch, wiring, connectors, and BCM input for an open circuit or short to battery voltage.
B2750	PASSKey Data Communication Failure	Check communication between the PASSKey/theft-deterrent system and related control modules. Inspect power, ground, communication wiring, connectors, and module configuration.
B2752	Horn Relay Coil Circuit Low (BCM)	Check the BCM horn relay coil output for low voltage. Inspect the horn relay, wiring, connectors, fuse, and horn circuit for a short to ground or excessive current draw.
B2753	Horn Relay Coil Circuit high (BCM)	Check the BCM horn relay coil output for excessive voltage. Inspect the horn relay, wiring, connectors, and control module output for an open circuit or short to battery voltage.
B2757	Driver Memory 1 Select Switch Circuit Low	Check the Driver Memory 1 switch input for low voltage. Inspect the switch, wiring, connectors, and control module input for a short to ground or excessive resistance.
B2762	Driver Memory 2 Select Switch Circuit Low	Check the Driver Memory 2 switch input for low voltage. Inspect the switch, wiring, connectors, and control module input for a short to ground or excessive resistance.
B2767	Memory Set Switch Failed Low	Check the Memory Set switch circuit for low voltage. Inspect the switch, wiring, connectors, and control module input for a short to ground or an incorrect signal.
B2772	Driver Memory Exit Switch Circuit Low	Check the Driver Memory Exit switch input for low voltage. Inspect the switch, wiring, connectors, and control module input for a short to ground or excessive resistance.
B2780	wrong Resistor Before Good	Check the PASSKey resistor/key signal before a valid key has been detected. Verify the key resistor value, ignition lock cylinder contacts, wiring, and theft-deterrent module.
B2781	wrong Resistor After Good	Check the PASSKey resistor value after a valid key was previously detected. Inspect the key, ignition lock cylinder contacts, wiring, and theft-deterrent module for an incorrect or intermittent resistance signal.
B2782	PASSKey Pellet Resistance Not Programmed	Check the PASSKey key resistor value and verify that the correct resistance is programmed in the theft-deterrent system. Perform the manufacturer’s approved key relearn/programming procedure if required.
B2783	Key Code/Password Corrupted In Memory	Check the theft-deterrent module for corrupted key-code or password data. Verify module power and ground, then perform the manufacturer’s approved relearn, reprogramming, or module replacement procedure.
B2805	Steering Whl Controls HVAC Switch Circuit Malfunction	Check the steering wheel HVAC control switches, wiring, connectors, and control module input. Verify switch operation and inspect for an open, short, or incorrect signal.
B2810	Steering Wheel Controls Entertainment Circuit Malfunction	Check the steering wheel entertainment control switches, wiring, connectors, and control module input. Verify switch operation and inspect the circuit for an open or short condition.
B2815	Steering Wheel Controls Illegal Resistance value	Check the steering wheel control circuit for an incorrect resistance value. Inspect the switches, wiring, connectors, and resistor network for an open, short, or incorrect resistance.
B2853	Telescope Forward Switch Circuit Malfunction	Check the steering column telescope-forward switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2858	Telescope Rearward Switch Circuit Malfunction	Check the steering column telescope-rearward switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2860	Telescope Position Sensor Range	Check the steering column telescope position sensor for an out-of-range signal. Inspect the sensor, wiring, connectors, and steering column mechanism for restricted movement.
B2862	Telescope Position Sensor Low	Check the telescope position sensor circuit for low voltage. Inspect the sensor, wiring, connectors, power supply, and ground for a short to ground or excessive resistance.
B2873	Tilt Up Switch Circuit Malfunction	Check the steering column tilt-up switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2878	Tilt Down Switch Circuit Malfunction	Check the steering column tilt-down switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open or short condition.
B2880	Tilt Position Sensor Range	Check the steering column tilt position sensor for an out-of-range signal. Inspect the sensor, wiring, connectors, and steering column mechanism for restricted movement.
B2882	Tilt Position Sensor Low	Check the tilt position sensor circuit for low voltage. Inspect the sensor, wiring, connectors, power supply, and ground for a short to ground or excessive resistance.
B2891	Tilt/Telescope Motor Over current	Check the tilt/telescope motor for excessive current draw. Inspect the motor, wiring, connectors, steering column mechanism, and related components for mechanical binding or obstruction.
B2904	Tilt/Telescope 4-way Position Switch Circuit Malfunction	Check the tilt/telescope 4-way position switch, wiring, connectors, and power supply. Verify switch operation and inspect the circuit for an open, short, or incorrect signal.
B2947	Security System Sensor Power Circuit Low	Check the security system sensor power circuit for low voltage. Inspect the sensor, wiring, connectors, fuse, power supply, and control module output for a short to ground or excessive resistance.
B2948	Security System Sensor Power Circuit high	Check the security system sensor power circuit for excessive voltage. Inspect the sensor, wiring, connectors, and control module output for an open circuit or short to battery voltage.
B2955	Security System Sensor Data Circuit Malfunction	Check the security system sensor data circuit, including wiring, connectors, sensor power, ground, and communication signal. Verify proper sensor communication with the control module.
B2957	Security System Sensor Data Circuit Low	Check the security system sensor data circuit for low voltage. Inspect the sensor, wiring, connectors, and control module input for a short to ground or excessive resistance.
B2958	Security System Sensor Data Circuit high	Check the security system sensor data circuit for excessive voltage. Inspect the sensor, wiring, connectors, and control module input for an open circuit or short to battery voltage.
B2960	Security System Sensor Data Incorrect but Valid	Check the security system sensor data for an incorrect but electrically valid signal. Inspect the sensor, wiring, connectors, sensor configuration, and control module for incorrect data or a sensor fault.
B2961	Key In Ignition Circuit Malfunction	Check the key-in-ignition switch and circuit. Inspect the ignition lock cylinder, switch, wiring, connectors, and IPC/BCM input for an incorrect signal.
B2965	Key In Ignition Circuit Open (IPC)	Check the IPC key-in-ignition input circuit for an open circuit. Inspect the ignition switch, wiring, connectors, and IPC input for a disconnected or damaged connection.
B3028	Starter Relay Interface Short to Ground	Check the starter relay control/interface circuit for a short to ground. Inspect the relay, wiring, connectors, fuse, and BCM/ECM output for damaged insulation or an incorrect connection.
B3029	Starter Relay Interface Open/Short to B+	Check the starter relay interface circuit for an open circuit or short to battery voltage. Inspect the relay, wiring, connectors, fuse, and control module output.
B3031	Key Decoder Device In Assem Learn Mode	Check whether the key decoder/security system is intentionally in assembly or learning mode. If not, verify module configuration, key programming, power supply, and communication circuits.
B3033	Security System Indicates Tamper	Check the theft/security system for a detected tamper condition. Inspect door, hood, trunk, and security sensors, switches, wiring, and related control module data for an unauthorized or incorrect input.
B3055	Key Not Present	Check the vehicle key and key-detection system. Verify the key battery (if applicable), key recognition, antenna/receiver circuits, wiring, connectors, and theft-deterrent module.
B3060	Security System Sensor Data Incorrect but Valid	Check the security system sensor data for an incorrect but electrically valid signal. Inspect the sensor, wiring, connectors, sensor configuration, and control module for incorrect data or a sensor fault.
B3064	Driver Door Key Cylinder Circuit	Check the driver door key cylinder switch and circuit. Inspect the key cylinder, switch, wiring, connectors, and BCM input for an open, short, or incorrect signal.
B3069	Right Front/Left Front Door Key Unlock Circuit Low	Check the front door key-unlock circuit for low voltage. Inspect the door key switch/cylinder, wiring, connectors, and BCM input for a short to ground or excessive resistance.
B3108	Transmitter Synchronization Failure	Check the remote transmitter/key fob synchronization. Verify the transmitter battery, transmitter programming, receiver operation, and communication between the transmitter and BCM/RKE system.
B3109	3 consecutive low battery signals from the same programmed transmitter	Check the battery voltage of the affected programmed transmitter. Replace the transmitter battery if necessary and verify transmitter operation and synchronization.
B3127	LF Door Only, Unlock Circuit Low (BCM)	Check the BCM left-front-door-only unlock output for low voltage. Inspect the door lock actuator, wiring, connectors, fuse, and BCM output for a short to ground or excessive current draw.
B3128	LF Door Only, Unlock Circuit High (BCM)	Check the BCM left-front-door-only unlock output for excessive voltage. Inspect the door lock actuator, wiring, connectors, and BCM output for an open circuit or short to battery voltage.
B3132	All Door Unlock Circuit Low (BCM)	Check the BCM all-door unlock output for low voltage. Inspect the door lock actuators, wiring, connectors, fuse, and BCM output for a short to ground or excessive current draw.
B3133	All Door Unlock Circuit high (BCM)	Check the BCM all-door unlock output for excessive voltage. Inspect the door lock actuators, wiring, connectors, and BCM output for an open circuit or short to battery voltage.
B3137	All Door Lock Circuit Low (BCM)	Check the BCM all-door lock output for low voltage. Inspect the door lock actuators, wiring, connectors, fuse, and BCM output for a short to ground or excessive current draw.
B3138	All Door Lock Circuit high (BCM)	Check the BCM all-door lock output for excessive voltage. Inspect the door lock actuators, wiring, connectors, and BCM output for an open circuit or short to battery voltage.
B3142	Left Front Unlock Switch Circuit Low	Check the left front door unlock switch circuit for low voltage. Inspect the switch, wiring, connectors, and BCM input for a short to ground or excessive resistance.
B3147	Passenger Unlock Switch Circuit Low	Check the passenger door unlock switch circuit for low voltage. Inspect the switch, wiring, connectors, and BCM input for a short to ground or excessive resistance.
B3152	Left Front Lock Switch Circuit Low	Check the left front door lock switch circuit for low voltage. Inspect the switch, wiring, connectors, and BCM input for a short to ground or excessive resistance.
B3157	Passenger Lock Switch Circuit Low	Check the passenger door lock switch circuit for low voltage. Inspect the switch, wiring, connectors, and BCM input for a short to ground or excessive resistance.
B3172	Window Up Switch Circuit Low	Check the window UP switch circuit for low voltage. Inspect the switch, wiring, connectors, and BCM/door module input for a short to ground or excessive resistance.
B3177	Window Down Switch Circuit Low	Check the window DOWN switch circuit for low voltage. Inspect the switch, wiring, connectors, and BCM/door module input for a short to ground or excessive resistance.
B3182	Window Switch Circuit	Check the affected window switch circuit, including the switch, wiring, connectors, power supply, and door module/BCM input. Inspect for an open, short, or incorrect switch signal.
B3187	Window Switch Circuit	Check the affected window switch circuit, including the switch, wiring, connectors, power supply, and door module/BCM input. Inspect for an open, short, or incorrect switch signal.
B3192	Window Switch Circuit	Check the affected window switch circuit, including the switch, wiring, connectors, power supply, and door module/BCM input. Inspect for an open, short, or incorrect switch signal.
B3197	Window Switch Circuit	Check the affected window switch circuit, including the switch, wiring, connectors, power supply, and door module/BCM input. Inspect for an open, short, or incorrect switch signal.
B3203	Rear Window Lockout Switch Input Circuit high	Check the rear window lockout switch input for excessive voltage. Inspect the switch, wiring, connectors, and BCM/door module input for an open circuit or short to battery voltage.
B3282	Window Switch-Express Input Shorted to Ground	Check the window express-function input circuit for a short to ground. Inspect the window switch, wiring, connectors, and door module/BCM input for damaged wiring or a stuck switch.
B3287	Left Rear Window Switch Express Down Circuit Low	Check the left rear express-down switch circuit for low voltage. Inspect the switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3292	Right Rear Window Switch Express Down Circuit Low	Check the right rear express-down switch circuit for low voltage. Inspect the switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3282	Window Switch-Express Input Shorted to Ground	Check the window express-function input circuit for a short to ground. Inspect the window switch, wiring, connectors, and door module/BCM input for damaged wiring or a stuck switch.
B3287	Window Switch Circuit	Check the affected window switch circuit, including the switch, wiring, connectors, power supply, and door module/BCM input. Inspect for an open, short, or incorrect switch signal.
B3292	Window Switch Circuit	Check the affected window switch circuit, including the switch, wiring, connectors, power supply, and door module/BCM input. Inspect for an open, short, or incorrect switch signal.
B3377	Left Front Window Up Switch Circuit Low	Check the left front window UP switch circuit for low voltage. Inspect the switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3382	Left Front Window Down Switch Circuit Low	Check the left front window DOWN switch circuit for low voltage. Inspect the switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3387	Right Front Window Up Switch Circuit Low	Check the right front window UP switch circuit for low voltage. Inspect the switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3392	Right Front Window Down Switch Circuit Low	Check the right front window DOWN switch circuit for low voltage. Inspect the switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3397	Left Rear Window Up Switch Circuit Low	Check the left rear window UP switch circuit for low voltage. Inspect the switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3410	AHLD Front Axle Sensor Signal Circuit	Check the AHLD front axle sensor signal circuit. Inspect the sensor, wiring, connectors, power supply, ground, and control module input for an open, short, or incorrect signal.
B3420	AHLD Rear Axle Sensor Signal Circuit	Check the AHLD rear axle sensor signal circuit. Inspect the sensor, wiring, connectors, power supply, ground, and control module input for an open, short, or incorrect signal.
B3452	Left Rear Window Down Switch Circuit Low	Check the left rear window DOWN switch circuit for low voltage. Inspect the switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3457	Right Rear Window Up Switch Circuit Low	Check the right rear window UP switch circuit for low voltage. Inspect the switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3462	Right Rear Window Down Switch Circuit Low	Check the right rear window DOWN switch circuit for low voltage. Inspect the switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3467	Left Front Window Express Down Circuit Low	Check the left front express-down circuit for low voltage. Inspect the window switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3472	Right Front Window Express Down Circuit Low	Check the right front express-down circuit for low voltage. Inspect the window switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3477	Left Rear Window Express Down Circuit Low	Check the left rear express-down circuit for low voltage. Inspect the window switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3482	MalfunctionWindow Express Down Circuit Low	Check the window express-down circuit for low voltage. Inspect the window switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3517	Left Rear Door Switch Express Up/Down Window Contact Shorted to GND	Check the left rear door window switch express UP/DOWN contacts for a short to ground. Inspect the switch, wiring, connectors, and door module input for damaged wiring or a defective switch.
B3522	Right Rear Door Switch Express Up/Down Window Contact Shorted to GND	Check the right rear door window switch express UP/DOWN contacts for a short to ground. Inspect the switch, wiring, connectors, and door module input for damaged wiring or a defective switch.
B3527	Window Lockout Switch Circuit Low	Check the window lockout switch circuit for low voltage. Inspect the switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3531	Auxiliary HAVC Actuator Circuit	Check the auxiliary HVAC actuator, wiring, connectors, power supply, and control circuit. Verify actuator operation and inspect for an open, short, or mechanical obstruction.
B3642	seat cool Temperature Switch Shorted	Check the seat cooling temperature switch/sensor circuit for a short condition. Inspect the sensor, wiring, connectors, and climate-controlled seat module input for a short to ground or voltage.
B3702	Intermittent Wiper Delay Input Circuit Low (BCM)	Check the BCM intermittent wiper-delay input for low voltage. Inspect the wiper delay switch, wiring, connectors, and BCM input for a short to ground or excessive resistance.
B3703	Intermittent Wiper Delay Input Circuit high/Open (BCM)	Check the BCM intermittent wiper-delay input for excessive voltage or an open circuit. Inspect the wiper delay switch, wiring, connectors, and BCM input for an open circuit or short to battery voltage.
B3708	Front Washer Motor Input high (BCM)	Check the BCM front washer motor input/control circuit for excessive voltage. Inspect the washer switch, motor, wiring, connectors, and BCM input for an open circuit or short to battery voltage.
B3713	Rear Washer Motor Input Circuit high (BCM)	Check the BCM rear washer motor input/control circuit for excessive voltage. Inspect the washer switch, motor, wiring, connectors, and BCM input for an open circuit or short to battery voltage.
B3717	Front Wiper Relay drive Circuit Low (BCM)	Check the BCM front wiper relay drive output for low voltage. Inspect the relay, wiring, connectors, fuse, and wiper motor circuit for a short to ground or excessive current draw.
B3718	Front Wiper Relay drive Circuit high (BCM)	Check the BCM front wiper relay drive output for excessive voltage. Inspect the relay, wiring, connectors, and wiper motor circuit for an open circuit or short to battery voltage.
B3722	Rear Wiper Relay drive Circuit Low (BCM)	Check the BCM rear wiper relay drive output for low voltage. Inspect the relay, wiring, connectors, fuse, and rear wiper motor circuit for a short to ground or excessive current draw.
B3723	Rear Wiper Relay drive Circuit high (BCM)	Check the BCM rear wiper relay drive output for excessive voltage. Inspect the relay, wiring, connectors, and rear wiper motor circuit for an open circuit or short to battery voltage.
B3761	HVAC Actuator Circuit	Check the HVAC actuator, wiring, connectors, power supply, and control circuit. Verify actuator operation and inspect for an open, short, or mechanical obstruction.
B3770	HVAC Actuator Circuit	Check the HVAC actuator, wiring, connectors, power supply, and control circuit. Verify actuator operation and inspect for an open, short, or mechanical obstruction.
B3793	Memory seat Module Over current	Check the memory seat module for excessive current draw. Inspect the seat motors, wiring, connectors, and seat mechanisms for a short circuit, mechanical binding, or excessive load.
B3801	Passenger Compartment Lamp Request Circuit	Check the passenger compartment lamp request circuit, including switches, wiring, connectors, and BCM input. Verify the request signal and inspect for an open or short circuit.
B3802	Parklamps Request Circuit	Check the park lamp request circuit, including the lighting switch, wiring, connectors, and BCM input. Verify the request signal and inspect for an open or short circuit.
B3808	Rear Door Lock Relay Circuit	Check the rear door lock relay circuit, including the relay, wiring, connectors, fuse, and BCM/door module output. Inspect for an open, short, or excessive current draw.
B3809	Rear Door Unlock Relay Circuit	Check the rear door unlock relay circuit, including the relay, wiring, connectors, fuse, and BCM/door module output. Inspect for an open, short, or excessive current draw.
B3810	Washer Relay Circuit	Check the washer relay circuit, including the relay, fuse, wiring, connectors, washer motor, and BCM output. Inspect for an open or short circuit.
B3811	Washer Relay Circuit	Check the washer relay circuit, including the relay, fuse, wiring, connectors, washer motor, and BCM output. Inspect for an open or short circuit.
B3819	Left Rear Power Window Up Relay Circuit	Check the left rear power window UP relay circuit. Inspect the relay, wiring, connectors, fuse, window motor, and door module/BCM output for an open, short, or excessive current draw.
B3820	Left Rear Power Window Down Relay Circuit	Check the left rear power window DOWN relay circuit, including the relay, wiring, connectors, fuse, window motor, and door module/BCM output. Inspect for an open, short, or excessive current draw.
B3821	Window Lockout Circuit Low	Check the window lockout circuit for low voltage. Inspect the lockout switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3822	Right Rear Power Window Up Relay Circuit	Check the right rear power window UP relay circuit, including the relay, wiring, connectors, fuse, window motor, and door module/BCM output. Inspect for an open, short, or excessive current draw.
B3823	Right Rear Power Window Down Relay Circuit	Check the right rear power window DOWN relay circuit, including the relay, wiring, connectors, fuse, window motor, and door module/BCM output. Inspect for an open, short, or excessive current draw.
B3824	Window Lockout Circuit Low	Check the window lockout circuit for low voltage. Inspect the lockout switch, wiring, connectors, and door module/BCM input for a short to ground or excessive resistance.
B3832	Window Position Sensor Circuit	Check the window position sensor, wiring, connectors, power supply, and door module input. Verify the sensor signal and inspect for an open, short, or incorrect position signal.
B3833	Window Position Sensor Circuit	Check the window position sensor, wiring, connectors, power supply, and door module input. Verify the sensor signal and inspect for an open, short, or incorrect position signal.
B3905	Lumbar Switch Control Circuit	Check the lumbar control switch, wiring, connectors, and seat module input. Verify switch operation and inspect the circuit for an open, short, or incorrect signal.
B3935	Transponder Authentication Error	Check the vehicle key/transponder and theft-deterrent system. Verify the key is programmed correctly, inspect the transponder reader/antenna, wiring, connectors, and related control module communication.
B1200	Climate Control Pushbutton Circuit Failure	Check the climate control pushbutton assembly, wiring, connectors, power supply, and control module input. Verify button operation and inspect for an open or short circuit.
B1201	Fuel Sender Circuit Failure	Check the fuel level sender, wiring, connectors, power supply, ground, and control module input. Verify the sender signal and inspect for an open, short, or incorrect resistance.
B1202	Fuel Sender Circuit Open	Check the fuel sender circuit for an open circuit. Inspect the fuel level sender, wiring, connectors, and control module connection for a broken wire or poor connection.
B1203	Fuel Sender Circuit Short To Battery	Check the fuel sender circuit for an unintended connection to battery voltage. Inspect the sender, wiring, connectors, and control module input for a short to B+.
B1204	Fuel Sender Circuit Short To Ground	Check the fuel sender circuit for a short to ground. Inspect the fuel level sender, wiring, connectors, and control module input for damaged insulation or excessive resistance.
B1205	EIC Switch-1 Assembly Circuit Failure	Check the EIC Switch-1 assembly, wiring, connectors, power supply, and control module input. Verify switch operation and inspect for an open or short circuit.
B1206	EIC Switch-1 Assembly Circuit Open	Check the EIC Switch-1 circuit for an open circuit. Inspect the switch assembly, wiring, connectors, and control module connections for a broken wire or poor connection.
B1207	EIC Switch-1 Assembly Circuit Short To Battery	Check the EIC Switch-1 circuit for an unintended connection to battery voltage. Inspect the switch assembly, wiring, connectors, and control module input for a short to B+.
B1208	EIC Switch-1 Assembly Circuit Short To Ground	Check the EIC Switch-1 circuit for a short to ground. Inspect the switch assembly, wiring, connectors, and control module input for damaged wiring or excessive resistance.
B1209	EIC Switch-2 Assembly Circuit Failure	Check the EIC Switch-2 assembly, wiring, connectors, power supply, and control module input. Verify switch operation and inspect for an open or short circuit.
B1210	EIC Switch-2 Assembly Circuit Open	Check the EIC Switch-2 circuit for an open circuit. Inspect the switch assembly, wiring, connectors, and control module connections for a broken wire or poor connection.
B1211	EIC Switch-2 Assembly Circuit Short To Battery	Check the EIC Switch-2 circuit for an unintended connection to battery voltage. Inspect the switch assembly, wiring, connectors, and control module input for a short to B+.
B1212	EIC Switch-2 Assembly Circuit Short To Ground	Check the EIC Switch-2 circuit for a short to ground. Inspect the switch assembly, wiring, connectors, and control module input for damaged wiring or excessive resistance.
B1213	Anti-Theft Number of Programmed Keys Is Below Minimum	Check the number of programmed keys stored in the anti-theft system. Verify that the required number of valid keys are programmed and perform the manufacturer’s approved key programming procedure if necessary.
B1214	Running Board Lamp Circuit Failure	Check the running board lamp circuit, including bulbs/LEDs, fuse, wiring, connectors, switches, and control module output. Inspect for an open or short circuit.
B1215	Running Board Lamp Circuit Short to Battery	Check the running board lamp circuit for an unintended connection to battery voltage. Inspect the wiring, connectors, lamps, and control module output for a short to B+.
B1216	Emergency & Road Side Assistance Switch Circuit Short to Ground	Check the emergency/roadside assistance switch circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or excessive resistance.
B1217	Horn Relay Coil Circuit Failure	Check the horn relay coil circuit, including the relay, fuse, wiring, connectors, and BCM output. Inspect for an open, short, or excessive current draw.
B1218	Horn Relay Coil Circuit Short to V batt	Check the horn relay coil circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and BCM output for a short to B+.
B1219	Fuel Tank Pressure Sensor Circuit Failure	Check the fuel tank pressure sensor, wiring, connectors, power supply, ground, and control module input. Verify the sensor signal and inspect for an open or short circuit.
B1220	Fuel Tank Pressure Sensor Circuit Open	Check the fuel tank pressure sensor circuit for an open circuit. Inspect the sensor, wiring, connectors, power supply, ground, and control module connection.
B1222	Fuel Temperature Sensor #1 Circuit Failure	Check Fuel Temperature Sensor #1, wiring, connectors, power supply, ground, and control module input. Verify the sensor signal and inspect for an open, short, or out-of-range resistance.
B1223	Fuel Temperature Sensor #1 Circuit Open	Check Fuel Temperature Sensor #1 circuit for an open circuit. Inspect the sensor, wiring, connectors, power supply, and control module connection for a broken wire or poor connection.
B1224	Fuel Temperature Sensor #1 Circuit Short to Battery	Check Fuel Temperature Sensor #1 circuit for an unintended connection to battery voltage. Inspect the sensor, wiring, connectors, and control module input for a short to B+.
B1225	Fuel Temperature Sensor #1 Circuit Short to Ground	Check Fuel Temperature Sensor #1 circuit for a short to ground. Inspect the sensor, wiring, connectors, and control module input for damaged insulation or excessive resistance.
B1226	Fuel Temperature Sensor #2 Circuit Failure	Check Fuel Temperature Sensor #2, wiring, connectors, power supply, ground, and control module input. Verify the sensor signal and inspect for an open, short, or incorrect resistance.
B1227	Fuel Temperature Sensor #2 Circuit Open	Check Fuel Temperature Sensor #2 circuit for an open circuit. Inspect the sensor, wiring, connectors, power supply, and control module connection for a broken wire or poor connection.
B1228	Fuel Temperature Sensor #2 Circuit Short to Battery	Check Fuel Temperature Sensor #2 circuit for an unintended connection to battery voltage. Inspect the sensor, wiring, connectors, and control module input for a short to B+.
B1229	Fuel Temperature Sensor #2 Circuit Short to Ground	Check Fuel Temperature Sensor #2 circuit for a short to ground. Inspect the sensor, wiring, connectors, and control module input for damaged insulation or excessive resistance.
B1231	Longitudinal Acceleration Threshold Exceeded	Check the vehicle’s longitudinal acceleration sensor/system for an abnormal or excessive acceleration event. Inspect the sensor, mounting, wiring, connectors, and related control module data.
B1232	See Manufacturer	Refer to the manufacturer’s service information for the exact meaning of this code. Diagnose the specified system using the manufacturer’s test procedure, wiring diagrams, and scan-tool data.
B1233	Glass Break Sensor Failure	Check the glass break sensor, wiring, connectors, power supply, and security system module. Verify sensor operation and inspect for an open, short, or damaged sensor.
B1234	Mirror Switch Invalid Code	Check the mirror control switch for an invalid or unexpected input signal. Inspect the switch, wiring, connectors, resistor network, and control module input.
B1235	Window Feedback Failure	Check the power window feedback system, including the window motor/position sensor, wiring, connectors, and door module. Verify the feedback signal and inspect for an open or short circuit.
B1236	Window Feedback Loss of Signal	Check the window position/feedback signal circuit for loss of communication. Inspect the window motor/sensor, wiring, connectors, power supply, and door module input.
B1237	Window Feedback Out of Range	Check the window feedback/position sensor for an out-of-range signal. Inspect the sensor, wiring, connectors, window mechanism, and door module for incorrect position information.
B1238	over Temperature Fault	Check the affected system for excessive temperature. Inspect the temperature sensor, wiring, connectors, cooling/ventilation components, and control module data to determine the source of the overheating condition.
B1239	Air Flow Blend Door Driver Circuit Failure	Check the HVAC blend door actuator/driver circuit, including the actuator, wiring, connectors, power supply, and control module output. Inspect for an open, short, or mechanically stuck blend door.
B1240	Wiper Washer Rear Pump Relay Circuit Failure	Check the rear washer pump relay circuit, including the relay, fuse, wiring, connectors, washer pump, and control module output. Inspect for an open, short, or excessive current draw.
B1241	Wiper Washer Rear Pump Relay Circuit Short to Battery	Check the rear washer pump relay circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output for a short to B+.
B1242	Air Flow Recirculation Door Driver Circuit Failure	Check the HVAC recirculation door actuator/driver circuit, including the actuator, wiring, connectors, power supply, and control module output. Inspect for an open, short, or mechanically stuck door.
B1243	Express Window down Switch Circuit Short to Battery	Check the express window-down switch circuit for a short to battery voltage. Inspect the switch, wiring, connectors, and door module/BCM input for a damaged wire or defective switch.
B1244	Wiper Rear Motor Run Relay Circuit Failure	Check the rear wiper motor run relay circuit, including the relay, fuse, wiring, connectors, wiper motor, and control module output. Inspect for an open or short circuit.
B1245	Wiper Rear Motor Run Relay Circuit Short to Battery	Check the rear wiper motor run relay circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output for a short to B+.
B1246	Dim Panel Potentiometer Switch Circuit Failure	Check the instrument panel dimmer potentiometer/switch, wiring, connectors, power supply, and control module input. Verify the resistance/signal changes smoothly through the adjustment range.
B1247	Panel Dim Switch Circuit Open	Check the panel dimmer switch circuit for an open circuit. Inspect the switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1248	Passenger’s Seatback Auto glides Rearward Switch Circuit Short to Ground	Check the passenger seatback auto-glide rearward switch circuit for a short to ground. Inspect the switch, wiring, connectors, and seat control module input for damaged insulation or a defective switch.
B1249	Blend Door Failure	Check the HVAC blend door actuator and mechanism. Inspect the actuator, wiring, connectors, power supply, position feedback, and blend door for mechanical binding or obstruction.
B1250	Air Temperature Internal Sensor Circuit Failure	Check the internal air temperature sensor, wiring, connectors, power supply, ground, and control module input. Verify the sensor signal and inspect for an open, short, or incorrect resistance.
B1251	Air Temperature Internal Sensor Circuit Open	Check the internal air temperature sensor circuit for an open circuit. Inspect the sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1252	Air Temperature Internal Sensor Circuit Short To Battery	Check the internal air temperature sensor circuit for an unintended connection to battery voltage. Inspect the sensor, wiring, connectors, and control module input for a short to B+.
B1253	Air Temperature Internal Sensor Circuit Short To Ground	Check the internal air temperature sensor circuit for a short to ground. Inspect the sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1254	Air Temperature External Sensor Circuit Failure	Check the external air temperature sensor, wiring, connectors, power supply, ground, and control module input. Verify the sensor signal and inspect for an open, short, or incorrect resistance.
B1255	Air Temperature External Sensor Circuit Open	Check the external air temperature sensor circuit for an open circuit. Inspect the sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1256	Air Temperature External Sensor Circuit Short To Battery	Check the external air temperature sensor circuit for an unintended connection to battery voltage. Inspect the sensor, wiring, connectors, and control module input for a short to B+.
B1257	Air Temperature External Sensor Circuit Short To Ground	Check the external air temperature sensor circuit for a short to ground. Inspect the sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1258	Solar Radiation Sensor Circuit Failure	Check the solar radiation sensor, wiring, connectors, power supply, ground, and HVAC control module input. Verify the sensor signal and inspect for an open, short, or incorrect output.
B1259	Solar Radiation Sensor Circuit Open	Check the solar radiation sensor circuit for an open circuit. Inspect the sensor, wiring, connectors, and HVAC control module connection for a broken wire or poor connection.
B1260	Solar Radiation Sensor Circuit Short To Battery	Check the solar radiation sensor circuit for an unintended connection to battery voltage. Inspect the sensor, wiring, connectors, and HVAC control module input for a short to B+.
B1261	Solar Radiation Sensor Circuit Short To Ground	Check the solar radiation sensor circuit for a short to ground. Inspect the sensor, wiring, connectors, and HVAC control module input for damaged insulation or a wiring short.
B1262	Servo Motor Defrost Circuit Failure	Check the HVAC defrost servo motor, wiring, connectors, power supply, and control module output. Verify motor operation and inspect for an open, short, or mechanically stuck door.
B1263	Servo Motor Vent Circuit Failure	Check the HVAC vent servo motor, wiring, connectors, power supply, and control module output. Verify motor operation and inspect for an open, short, or mechanically stuck vent door.
B1264	Servo Motor Foot Circuit Failure	Check the HVAC foot-mode servo motor, wiring, connectors, power supply, and control module output. Verify motor operation and inspect for an open, short, or mechanically stuck door.
B1265	Servo Motor Cool air Bypass Circuit Failure	Check the cool-air bypass servo motor, wiring, connectors, power supply, and control module output. Verify actuator operation and inspect for an open, short, or mechanically stuck door.
B1266	Servo Motor Air intake Left Circuit Failure	Check the left air-intake servo motor, wiring, connectors, power supply, and control module output. Verify actuator operation and inspect for an open, short, or mechanically stuck intake door.
B1267	Servo Motor Air intake Right Circuit Failure	Check the right air-intake servo motor, wiring, connectors, power supply, and control module output. Verify actuator operation and inspect for an open, short, or mechanically stuck intake door.
B1268	Servo Motor Potentiometer Defrost Circuit Failure	Check the defrost servo motor position potentiometer circuit. Inspect the actuator, position sensor, wiring, connectors, power supply, and HVAC control module input for an incorrect or missing position signal.
B1269	Servo Motor Potentiometer Defrost Circuit Open	Check the defrost servo motor potentiometer circuit for an open circuit. Inspect the position sensor, wiring, connectors, and HVAC control module connection for a broken wire or poor connection.
B1270	Servo Motor Potentiometer Defrost Circuit Short To Battery	Check the defrost servo motor potentiometer circuit for an unintended connection to battery voltage. Inspect the position sensor, wiring, connectors, and HVAC control module input for a short to B+.
B1271	Servo Motor Potentiometer Defrost Circuit Short To Ground	Check the defrost servo motor potentiometer circuit for a short to ground. Inspect the position sensor, wiring, connectors, and HVAC control module input for damaged insulation or a wiring short.
B1272	Servo Motor Potentiometer Vent Circuit Failure	Check the vent servo motor position potentiometer circuit. Inspect the actuator, position sensor, wiring, connectors, power supply, and HVAC control module input for an incorrect or missing position signal.
B1273	Servo Motor Potentiometer Vent Circuit Open	Check the vent servo motor potentiometer circuit for an open circuit. Inspect the position sensor, wiring, connectors, and HVAC control module connection for a broken wire or poor connection.
B1274	Servo Motor Potentiometer Vent Circuit Short To Battery	Check the vent servo motor potentiometer circuit for an unintended connection to battery voltage. Inspect the position sensor, wiring, connectors, and HVAC control module input for a short to B+.
B1275	Servo Motor Potentiometer Vent Circuit Short To Ground	Check the vent servo motor potentiometer circuit for a short to ground. Inspect the position sensor, wiring, connectors, and HVAC control module input for damaged insulation or a wiring short.
B1276	Servo Motor Potentiometer Foot Circuit Failure	Check the foot-mode servo motor position potentiometer circuit. Inspect the actuator, position sensor, wiring, connectors, power supply, and HVAC control module input for an incorrect or missing position signal.
B1277	Servo Motor Potentiometer Foot Circuit Open	Check the foot-mode servo motor potentiometer circuit for an open circuit. Inspect the position sensor, wiring, connectors, and HVAC control module connection for a broken wire or poor connection.
B1278	Servo Motor Potentiometer Foot Circuit Short To Battery	Check the foot-mode servo motor potentiometer circuit for an unintended connection to battery voltage. Inspect the position sensor, wiring, connectors, and HVAC control module input for a short to B+.
B1279	Servo Motor Potentiometer Foot Circuit Short To Ground	Check the foot-mode servo motor potentiometer circuit for a short to ground. Inspect the position sensor, wiring, connectors, and HVAC control module input for damaged insulation or a wiring short.
B1280	Servo Motor Potentiometer Cool air Circuit Failure	Check the cool-air servo motor position potentiometer circuit. Inspect the actuator, position sensor, wiring, connectors, power supply, and HVAC control module input for an incorrect or missing position signal.
B1281	Servo Motor Potentiometer Cool air Circuit Open	Check the cool-air servo motor potentiometer circuit for an open circuit. Inspect the position sensor, wiring, connectors, and HVAC control module connection for a broken wire or poor connection.
B1282	Servo Motor Potentiometer Cool air Circuit Short to Battery	Check the cool-air servo motor potentiometer circuit for an unintended connection to battery voltage. Inspect the position sensor, wiring, connectors, and HVAC control module input for a short to B+.
B1283	Servo Motor Potentiometer Cool air Circuit Short to Ground	Check the cool-air servo motor potentiometer circuit for a short to ground. Inspect the position sensor, wiring, connectors, and HVAC control module input for damaged insulation or a wiring short.
B1284	Servo Motor Potentiometer Air intake Left Circuit Failure	Check the left air-intake servo motor position potentiometer circuit. Inspect the actuator, position sensor, wiring, connectors, power supply, and HVAC control module input for an incorrect or missing position signal.
B1285	Servo Motor Potentiometer Air intake Left Circuit Open	Check the left air-intake servo motor potentiometer circuit for an open circuit. Inspect the position sensor, wiring, connectors, and HVAC control module connection for a broken wire or poor connection.
B1286	Servo Motor Potentiometer Air intake Left Circuit Short to Battery	Check the left air-intake servo motor potentiometer circuit for an unintended connection to battery voltage. Inspect the position sensor, wiring, connectors, and HVAC control module input for a short to B+.
B1287	Servo Motor Potentiometer Air intake Left Circuit Short to Ground	Check the left air-intake servo motor potentiometer circuit for a short to ground. Inspect the position sensor, wiring, connectors, and HVAC control module input for damaged insulation or a wiring short.
B1288	Servo Motor Potentiometer Air intake Right Circuit Failure	Check the right air-intake servo motor position potentiometer circuit. Inspect the actuator, position sensor, wiring, connectors, power supply, and HVAC control module input for an incorrect or missing position signal.
B1289	Servo Motor Potentiometer Air intake Right Circuit Open	Check the right air-intake servo motor potentiometer circuit for an open circuit. Inspect the position sensor, wiring, connectors, and HVAC control module connection for a broken wire or poor connection.
B1290	Servo Motor Potentiometer Air intake Right Circuit Short to Battery	Check the right air-intake servo motor potentiometer circuit for an unintended connection to battery voltage. Inspect the position sensor, wiring, connectors, and HVAC control module input for a short to B+.
B1291	Servo Motor Potentiometer Air intake Right Circuit Short to Ground	Check the right air-intake servo motor potentiometer circuit for a short to ground. Inspect the position sensor, wiring, connectors, and HVAC control module input for damaged insulation or a wiring short.
B1292	Battery Power Relay Circuit Failure	Check the battery power relay, fuse, wiring, connectors, power supply, ground, and control module output. Verify relay operation and inspect for an open, short, or excessive current draw.
B1293	Battery Power Relay Circuit Open	Check the battery power relay circuit for an open circuit. Inspect the relay, fuse, wiring, connectors, and control module connection for a broken wire or poor connection.
B1294	Battery Power Relay Circuit Short To Battery	Check the battery power relay circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output for a short to B+.
B1295	Battery Power Relay Circuit Short To Ground	Check the battery power relay circuit for a short to ground. Inspect the relay, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1296	Power Supply Sensor Circuit Failure	Check the power supply sensor, wiring, connectors, power supply, ground, and control module input. Verify the sensor signal and inspect for an open, short, or incorrect voltage.
B1297	Power Supply Sensor Circuit Open	Check the power supply sensor circuit for an open circuit. Inspect the sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1298	Power Supply Sensor Circuit Short To Battery	Check the power supply sensor circuit for an unintended connection to battery voltage. Inspect the sensor, wiring, connectors, and control module input for a short to B+.
B1299	Power Supply Sensor Circuit Short To Ground	Check the power supply sensor circuit for a short to ground. Inspect the sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1300	Power Door Lock Circuit Failure	Check the power door lock circuit, including the door lock actuator, switch, wiring, connectors, fuse, and BCM/door module output. Inspect for an open, short, or excessive current draw.
B1301	Power Door Lock Circuit Open	Check the power door lock circuit for an open circuit. Inspect the door lock actuator, wiring, connectors, fuse, and BCM/door module connection for a broken wire or poor connection.
B1302	Accessory Delay Relay Coil Circuit Failure	Check the accessory delay relay coil circuit, including the relay, fuse, wiring, connectors, and BCM/control module output. Verify relay operation and inspect for an open or short circuit.
B1303	Accessory Delay Relay Coil Circuit Open	Check the accessory delay relay coil circuit for an open circuit. Inspect the relay, wiring, connectors, and control module connection for a broken wire or poor connection.
B1304	Accessory Delay Relay Coil Circuit Short To Battery	Check the accessory delay relay coil circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output for a short to B+.
B1305	Accessory Delay Relay Coil Circuit Short To Ground	Check the accessory delay relay coil circuit for a short to ground. Inspect the relay, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1306	Oil Level Switch Circuit Open	Check the oil level switch circuit for an open circuit. Inspect the oil level switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1307	Oil Level Switch Circuit Short To Battery	Check the oil level switch circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1308	Oil Level Switch Circuit Short To Ground	Check the oil level switch circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1309	Power Door Lock Circuit Short To Ground	Check the power door lock circuit for a short to ground. Inspect the door lock actuator, switch, wiring, connectors, and BCM/door module output for damaged wiring or excessive current draw.
B1310	Power Door Unlock Circuit Failure	Check the power door unlock circuit, including the door lock actuator, unlock switch, wiring, connectors, fuse, and BCM/door module output. Inspect for an open, short, or excessive current draw.
B1311	Power Door Unlock Circuit Open	Check the power door unlock circuit for an open circuit. Inspect the door lock actuator, wiring, connectors, fuse, and BCM/door module connection for a broken wire or poor connection.
B1312	Lamp Headlamp Input Circuit Short To Battery	Check the headlamp input circuit for an unintended connection to battery voltage. Inspect the lighting switch, wiring, connectors, and BCM/control module input for a short to B+.
B1313	Battery Saver Relay Coil Circuit Failure	Check the battery saver relay, fuse, wiring, connectors, and control module output. Verify relay operation and inspect the coil circuit for an open, short, or excessive current draw.
B1314	Battery Saver Relay Coil Circuit Open	Check the battery saver relay coil circuit for an open circuit. Inspect the relay, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1315	Battery Saver Relay Coil Circuit Short To Battery	Check the battery saver relay coil circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output for a short to B+.
B1316	Battery Saver Relay Coil Circuit Short To Ground	Check the battery saver relay coil circuit for a short to ground. Inspect the relay, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1317	Battery Voltage High	Check the vehicle charging system and battery voltage. Inspect the alternator, voltage regulator, battery, wiring, and grounds for an overcharging condition.
B1318	Battery Voltage Low	Check the battery and charging system. Inspect the battery condition, terminals, cables, alternator, voltage regulator, fuses, and grounds for low system voltage.
B1319	Driver Door Ajar Circuit Failure	Check the driver door-ajar switch/sensor, wiring, connectors, and BCM input. Verify the door-ajar signal and inspect for an open, short, or defective switch.
B1320	Driver Door Ajar Circuit Open	Check the driver door-ajar circuit for an open circuit. Inspect the door-ajar switch, wiring, connectors, and BCM connection for a broken wire or poor connection.
B1321	Driver Door Ajar Circuit Short To Battery	Check the driver door-ajar circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and BCM input for a short to B+.
B1322	Driver Door Ajar Circuit Short To Ground	Check the driver door-ajar circuit for a short to ground. Inspect the switch, wiring, connectors, and BCM input for damaged insulation or a wiring short.
B1323	Door Ajar Lamp Circuit Failure	Check the door-ajar warning lamp circuit, including the lamp/LED, wiring, connectors, fuse, and BCM output. Inspect for an open, short, or excessive current draw.
B1324	Door Ajar Lamp Circuit Open	Check the door-ajar lamp circuit for an open circuit. Inspect the lamp, wiring, connectors, fuse, and BCM connection for a broken wire or poor connection.
B1325	Door Ajar Lamp Circuit Short To Battery	Check the door-ajar lamp circuit for an unintended connection to battery voltage. Inspect the lamp, wiring, connectors, and BCM output for a short to B+.
B1326	Door Ajar Lamp Circuit Short To Ground	Check the door-ajar lamp circuit for a short to ground. Inspect the lamp, wiring, connectors, and BCM output for damaged insulation or excessive current draw.
B1327	Passenger Door Ajar Circuit Failure	Check the passenger door-ajar switch/sensor, wiring, connectors, and BCM input. Verify the door-ajar signal and inspect for an open, short, or defective switch.
B1328	Passenger Door Ajar Circuit Open	Check the passenger door-ajar circuit for an open circuit. Inspect the door-ajar switch, wiring, connectors, and BCM connection for a broken wire or poor connection.
B1329	Passenger Door Ajar Circuit Short To Battery	Check the passenger door-ajar circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and BCM input for a short to B+.
B1330	Passenger Door Ajar Circuit Short To Ground	Check the passenger door-ajar circuit for a short to ground. Inspect the switch, wiring, connectors, and BCM input for damaged insulation or a wiring short.
B1331	Deck lid Ajar Rear Door Circuit Failure	Check the deck lid/rear door-ajar switch, wiring, connectors, and BCM input. Verify the switch signal and inspect for an open, short, or defective switch.
B1332	Deck lid Ajar Rear Door Circuit Open	Check the deck lid/rear door-ajar circuit for an open circuit. Inspect the switch, wiring, connectors, and BCM connection for a broken wire or poor connection.
B1333	Deck lid Ajar Rear Door Circuit Short To Battery	Check the deck lid/rear door-ajar circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and BCM input for a short to B+.
B1334	Deck lid Ajar Rear Door Circuit Short To Ground	Check the deck lid/rear door-ajar circuit for a short to ground. Inspect the switch, wiring, connectors, and BCM input for damaged insulation or a wiring short.
B1335	Door Ajar RR Circuit Failure	Check the right rear door-ajar switch/sensor, wiring, connectors, and BCM input. Verify the door-ajar signal and inspect for an open, short, or defective switch.
B1336	Door Ajar RR Circuit Open	Check the right rear door-ajar circuit for an open circuit. Inspect the switch, wiring, connectors, and BCM connection for a broken wire or poor connection.
B1337	Door Ajar RR Circuit Short To Battery	Check the right rear door-ajar circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and BCM input for a short to B+.
B1338	Door Ajar RR Circuit Short To Ground	Check the right rear door-ajar circuit for a short to ground. Inspect the switch, wiring, connectors, and BCM input for damaged insulation or a wiring short.
B1339	Chime Input Request Circuit Short To Battery	Check the chime input request circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and BCM/control module input for a short to B+.
B1340	Chime Input Request Circuit Short To Ground	Check the chime input request circuit for a short to ground. Inspect the switch, wiring, connectors, and BCM/control module input for damaged insulation or a wiring short.
B1341	Power Door Unlock Circuit Short To Ground	Check the power door unlock circuit for a short to ground. Inspect the door lock actuator, unlock switch, wiring, connectors, and BCM/door module output for damaged wiring or excessive current draw.
B1342	ECU Is Defective	Perform a complete diagnostic scan and verify the ECU’s power supply, grounds, communication lines, and related wiring before replacing the ECU. If all external circuits test correctly, the ECU may require reprogramming or replacement.
B1343	Heated Backlight Input Circuit Failure	Check the heated backlight input circuit, including the switch, wiring, connectors, fuse, and BCM/control module input. Verify the input signal and inspect for an open or short circuit.
B1344	Heated Backlight Input Circuit Open	Check the heated backlight input circuit for an open circuit. Inspect the switch, wiring, connectors, fuse, and BCM connection for a broken wire or poor connection.
B1345	Heated Backlight Input Circuit Short To Ground	Check the heated backlight input circuit for a short to ground. Inspect the switch, wiring, connectors, and BCM input for damaged insulation or a wiring short.
B1346	Heated Backlight Input Circuit Short To Battery	Check the heated backlight input circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and BCM input for a short to B+.
B1347	Heated Backlight Relay Circuit Failure	Check the heated backlight relay, fuse, wiring, connectors, and control module output. Verify relay operation and inspect for an open, short, or excessive current draw.
B1348	Heated Backlight Relay Circuit Open	Check the heated backlight relay circuit for an open circuit. Inspect the relay, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1349	Heated Backlight Relay Short to Battery	Check the heated backlight relay circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output for a short to B+.
B1350	Heated Backlight Relay Short To Ground	Check the heated backlight relay circuit for a short to ground. Inspect the relay, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1351	Ignition Key-In Circuit Short To Battery	Check the ignition key-in circuit for an unintended connection to battery voltage. Inspect the key-in switch, wiring, connectors, and BCM/IPC input for a short to B+.
B1352	Ignition Key-In Circuit Failure	Check the ignition key-in switch, wiring, connectors, power supply, and BCM/IPC input. Verify the key-in signal and inspect for an open or short circuit.
B1353	Ignition Key-In Circuit Open	Check the ignition key-in circuit for an open circuit. Inspect the key-in switch, wiring, connectors, and BCM/IPC connection for a broken wire or poor connection.
B1354	Ignition Key-In Circuit Short To Ground	Check the ignition key-in circuit for a short to ground. Inspect the key-in switch, wiring, connectors, and BCM/IPC input for damaged insulation or a wiring short.
B1355	Ignition Run Circuit Failure	Check the ignition RUN circuit, including the ignition switch, relay, fuse, wiring, connectors, and control module input/output. Verify the RUN voltage and inspect for an open or short circuit.
B1356	Ignition Run Circuit Open	Check the ignition RUN circuit for an open circuit. Inspect the ignition switch, relay, fuse, wiring, connectors, and control module connections for a broken wire or poor connection.
B1357	Ignition Run Circuit Short To Battery	Check the ignition RUN circuit for an unintended connection to battery voltage. Inspect the ignition switch, relay, wiring, connectors, and control module for a short to B+.
B1358	Ignition Run Circuit Short To Ground	Check the ignition RUN circuit for a short to ground. Inspect the ignition switch, relay, wiring, connectors, and control module output for damaged wiring or excessive current draw.
B1359	Ignition Run/Acc Circuit Failure	Check the ignition RUN/ACC circuit, including the ignition switch, relay, fuse, wiring, connectors, and control module input/output. Verify the circuit voltage and inspect for an open or short.
B1360	Ignition Run/Acc Circuit Open	Check the ignition RUN/ACC circuit for an open circuit. Inspect the ignition switch, relay, fuse, wiring, connectors, and control module connections for a broken wire or poor connection.
B1361	Ignition Run/Acc Circuit Short To Battery	Check the ignition RUN/ACC circuit for an unintended connection to battery voltage. Inspect the ignition switch, relay, wiring, connectors, and control module for a short to B+.
B1362	Ignition Run/Acc Circuit Short To Ground	Check the ignition RUN/ACC circuit for a short to ground. Inspect the ignition switch, relay, wiring, connectors, and control module output for damaged wiring or excessive current draw.
B1363	Ignition Start Circuit Failure	Check the ignition START circuit, including the ignition switch, starter relay, fuse, wiring, connectors, and control module input/output. Verify the START signal and inspect for an open or short circuit.
B1364	Ignition Start Circuit Open	Check the ignition START circuit for an open circuit. Inspect the ignition switch, starter relay, fuse, wiring, connectors, and control module connections for a broken wire or poor connection.
B1365	Ignition Start Circuit Short To Battery	Check the ignition START circuit for an unintended connection to battery voltage. Inspect the ignition switch, relay, wiring, connectors, and control module for a short to B+.
B1366	Ignition Start Circuit Short To Ground	Check the ignition START circuit for a short to ground. Inspect the ignition switch, starter relay, wiring, connectors, and control module output for damaged wiring or excessive current draw.
B1367	Ignition Tach Circuit Failure	Check the ignition tachometer signal circuit, including the ignition system, wiring, connectors, and control module input. Verify the tach signal and inspect for an open, short, or incorrect signal.
B1368	Ignition Tach Circuit Open	Check the ignition tach circuit for an unintended connection to battery voltage. Inspect the wiring, connectors, and control module input for a short to B+.
B1369	Ignition Tach Circuit Short To Battery	Check the ignition tach circuit for a short to ground. Inspect the wiring, connectors, and control module input for damaged insulation or a wiring short.
B1370	Ignition Tach Circuit Short To Ground	Check the illuminated entry relay, fuse, wiring, connectors, and BCM/control module output. Verify relay operation and inspect for an open, short, or excessive current draw.
B1371	Illuminated Entry Relay Circuit Failure	Check the illuminated entry relay circuit for an open circuit. Inspect the relay, fuse, wiring, connectors, and BCM/control module connection for a broken wire or poor connection.
B1372	Illuminated Entry Relay Circuit Open	Check the illuminated entry relay circuit for an open circuit. Inspect the relay, fuse, wiring, connectors, and BCM/control module connection for a broken wire or poor connection.
B1373	Illuminated Entry Relay Short To Battery	Check the illuminated entry relay circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and BCM/control module output for a short to B+.
B1374	Illuminated Entry Relay Short To Ground	Check the illuminated entry relay circuit for a short to ground. Inspect the relay, wiring, connectors, and BCM/control module output for damaged insulation or excessive current draw.
B1375	Oil Change Lamp Circuit Open	Check the oil change lamp circuit for an open circuit. Inspect the lamp/LED, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1376	Oil Change Lamp Circuit Short To Battery	Check the oil change lamp circuit for an unintended connection to battery voltage. Inspect the lamp, wiring, connectors, and control module output for a short to B+.
B1377	Oil Change Lamp Circuit Failure	Check the oil change lamp, wiring, connectors, fuse, and control module output. Verify the lamp signal and inspect the circuit for an open, short, or excessive current draw.
B1378	Oil Change Lamp Circuit Short To Ground	Check the oil change lamp circuit for a short to ground. Inspect the lamp, wiring, connectors, and control module output for damaged insulation or a wiring short.
B1379	Oil Change Reset Button Circuit Short To Ground	Check the oil change reset button circuit for a short to ground. Inspect the reset button, wiring, connectors, and control module input for damaged wiring or a stuck switch.
B1380	Oil Change Reset Button Circuit Failure	Check the oil change reset button, wiring, connectors, and control module input. Verify the button signal and inspect for an open or short circuit.
B1381	Oil Change Reset Button Circuit Open	Check the oil change reset button circuit for an open circuit. Inspect the button, wiring, connectors, and control module connection for a broken wire or poor connection.
B1382	Oil Change Reset Button Circuit Short To Battery	Check the oil change reset button circuit for an unintended connection to battery voltage. Inspect the button, wiring, connectors, and control module input for a short to B+.
B1383	Oil Level Lamp Circuit Short To Battery	Check the oil level lamp circuit for an unintended connection to battery voltage. Inspect the lamp, wiring, connectors, and control module output for a short to B+.
B1384	Oil Level Lamp Circuit Failure	Check the oil level lamp, wiring, connectors, fuse, and control module output. Verify the lamp operation and inspect for an open or short circuit.
B1385	Oil Level Lamp Circuit Open	Check the oil level lamp circuit for an open circuit. Inspect the lamp, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1386	Oil Level Lamp Circuit Short To Ground	Check the oil level lamp circuit for a short to ground. Inspect the lamp, wiring, connectors, and control module output for damaged insulation or a wiring short.
B1387	Oil Temperature Sensor Circuit Open	Check the oil temperature sensor circuit for an open circuit. Inspect the sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1388	Oil Temperature Sensor Circuit Short To Battery	Check the oil temperature sensor circuit for an unintended connection to battery voltage. Inspect the sensor, wiring, connectors, and control module input for a short to B+.
B1389	Oil Temperature Sensor Circuit Failure	Check the oil temperature sensor, wiring, connectors, and control module input. Verify the sensor resistance/signal and inspect the circuit for an open or short.
B1390	Oil Temperature Sensor Circuit Short To Ground	Check the oil temperature sensor circuit for a short to ground. Inspect the sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1391	Oil Level Switch Circuit Failure	Check the oil level switch, wiring, connectors, and control module input. Verify the switch operation and inspect the circuit for an open or short.
B1392	Power Door Memory Lock Relay Circuit Failure	Check the power door memory lock relay, fuse, wiring, connectors, and control module output. Verify relay operation and inspect for an open, short, or excessive current draw.
B1393	Power Door Memory Lock Relay Circuit Open	Check the power door memory lock relay circuit for an open circuit. Inspect the relay, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1394	Power Door Memory Lock Relay Circuit Short To Battery	Check the power door memory lock relay circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output for a short to B+.
B1395	Power Door Memory Lock Relay Circuit Short To Ground	Check the power door memory lock relay circuit for a short to ground. Inspect the relay, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1396	Power Door Lock Circuit Short To Battery	Check the power door lock circuit for an unintended connection to battery voltage. Inspect the door lock actuator, switch, wiring, connectors, and control module output for a short to B+.
B1397	Power Door Unlock Circuit Short To Battery	Check the power door unlock circuit for an unintended connection to battery voltage. Inspect the door unlock actuator, switch, wiring, connectors, and control module output for a short to B+.
B1398	Driver Power Window One Touch Window Relay Circuit Failure	Check the driver power window one-touch relay, fuse, wiring, connectors, and control module output. Verify relay operation and inspect for an open, short, or excessive current draw.
B1399	Driver Power Window One Touch Window Relay Circuit Open	Check the driver power window one-touch relay circuit for an open circuit. Inspect the relay, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1400	Driver Power Window One Touch Window Relay Circuit Short To Battery	Check the driver power window one-touch relay circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output for a short to B+.
B1401	Driver Power Window One Touch Window Relay Circuit Short To Ground	Check the driver power window one-touch relay circuit for a short to ground. Inspect the relay, wiring, connectors, and control module output for damaged wiring or excessive current draw.
B1402	Driver Power Window down Switch Circuit Failure	Check the driver power window down switch, wiring, connectors, and control module input. Verify switch operation and inspect for an open or short circuit.
B1403	Driver Power Window up Switch Circuit Failure	Check the driver power window up switch, wiring, connectors, and control module input. Verify switch operation and inspect for an open or short circuit.
B1404	Driver Power Window down Circuit Open	Check the driver power window down circuit for an open circuit. Inspect the switch, wiring, connectors, fuse, and window control module connection for a broken wire or poor connection.
B1405	Driver Power Window down Circuit Short to Battery	Check the driver power window down circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module output for a short to B+.
B1406	Driver Power Window Down Circuit Short To Ground	Check the driver power window down circuit for a short to ground. Inspect the switch, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1407	Driver Power Window up Circuit Open	Check the driver power window up circuit for an open circuit. Inspect the switch, wiring, connectors, fuse, and window control module connection for a broken wire or poor connection.
B1408	Driver Power Window up Circuit Short to Battery	Check the driver power window up circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module output for a short to B+.
B1409	Driver Power Window Up Circuit Short To Ground	Check the driver power window up circuit for a short to ground. Inspect the switch, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1410	Driver Power Window Motor Circuit Failure	Check the driver power window motor, wiring, connectors, fuse, and window control module. Verify motor operation and inspect for excessive current draw or an open/short circuit.
B1411	Driver Power Window Motor Circuit Open	Check the driver power window motor circuit for an open circuit. Inspect the motor, wiring, connectors, fuse, and window control module connection for a broken wire or poor connection.
B1412	Driver Power Window Motor Circuit Short To Battery	Check the driver power window motor circuit for an unintended connection to battery voltage. Inspect the motor, wiring, connectors, and window control module output for a short to B+.
B1413	Driver Power Window Motor Circuit Short To Ground	Check the driver power window motor circuit for a short to ground. Inspect the motor, wiring, connectors, and window control module output for damaged insulation or excessive current draw.
B1414	Power Window LR Motor Circuit Failure	Check the left rear power window motor, wiring, connectors, fuse, and window control module. Verify motor operation and inspect for an open, short, or excessive current draw.
B1415	Power Window LR Motor Circuit Open	Check the left rear power window motor circuit for an open circuit. Inspect the motor, wiring, connectors, fuse, and window control module connection for a broken wire or poor connection.
B1416	Power Window LR Motor Circuit Short To Battery	Check the left rear power window motor circuit for an unintended connection to battery voltage. Inspect the motor, wiring, connectors, and window control module output for a short to B+.
B1417	Power Window LR Motor Circuit Short To Ground	Check the left rear power window motor circuit for a short to ground. Inspect the motor, wiring, connectors, and window control module output for damaged insulation or excessive current draw.
B1418	Passenger Power Window Motor Circuit Failure	Check the passenger power window motor, wiring, connectors, fuse, and window control module. Verify motor operation and inspect for an open, short, or excessive current draw.
B1419	Passenger Power Window Motor Circuit Open	Check the passenger power window motor circuit for an open circuit. Inspect the motor, wiring, connectors, fuse, and window control module connection for a broken wire or poor connection.
B1420	Passenger Power Window Motor Circuit Short To Battery	Check the passenger power window motor circuit for an unintended connection to battery voltage. Inspect the motor, wiring, connectors, and window control module output for a short to B+.
B1421	Passenger Power Window Motor Circuit Short To Ground	Check the passenger power window motor circuit for a short to ground. Inspect the motor, wiring, connectors, and window control module output for damaged insulation or excessive current draw.
B1422	Power Window RR Motor Circuit Failure	Check the right rear power window motor, wiring, connectors, fuse, and window control module. Verify motor operation and inspect for an open, short, or excessive current draw.
B1423	Power Window RR Motor Circuit Open	Check the right rear power window motor circuit for an open circuit. Inspect the motor, wiring, connectors, fuse, and window control module connection for a broken wire or poor connection.
B1424	Power Window RR Motor Circuit Short To Battery	Check the right rear power window motor circuit for an unintended connection to battery voltage. Inspect the motor, wiring, connectors, and window control module output for a short to B+.
B1425	Power Window RR Motor Circuit Short To Ground	Check the right rear power window motor circuit for a short to ground. Inspect the motor, wiring, connectors, and window control module output for damaged insulation or excessive current draw.
B1426	Lamp Seat Belt Circuit Short To Battery	Check the seat belt warning lamp circuit for an unintended connection to battery voltage. Inspect the lamp, wiring, connectors, fuse, and control module output for a short to B+.
B1427	Lamp Seat Belt Circuit Open	Check the seat belt warning lamp circuit for an open circuit. Inspect the lamp, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1428	Lamp Seat Belt Circuit Failure	Check the seat belt warning lamp, wiring, connectors, fuse, and control module output. Verify lamp operation and inspect the circuit for an open, short, or excessive current draw.
B1429	Lamp Seat Belt Circuit Short To Ground	Check the seat belt warning lamp circuit for a short to ground. Inspect the lamp, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1430	Seat Belt Switch Circuit Short To Ground	Check the seat belt switch circuit for a short to ground. Inspect the seat belt buckle switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1431	Wiper Brake/Run Relay Circuit Failure	Check the wiper brake/run relay, fuse, wiring, connectors, and BCM/control module output. Verify relay operation and inspect for an open, short, or excessive current draw.
B1432	Wiper Brake/Run Relay Circuit Short To Battery	Check the wiper brake/run relay circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output for a short to B+.
B1433	Wiper Brake/Run Relay Circuit Short To Ground	Check the wiper brake/run relay circuit for a short to ground. Inspect the relay, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1434	Wiper Hi/Low Speed Relay Coil Circuit Failure	Check the wiper high/low-speed relay, relay coil, wiring, connectors, fuse, and control module output. Verify relay operation and inspect for an open or short circuit.
B1435	Wiper Hi/Low Speed Relay Coil Circuit Open	Check the wiper high/low-speed relay coil circuit for an open circuit. Inspect the relay, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1436	Wiper Hi/Low Speed Relay Coil Circuit Short To Battery	Check the wiper high/low-speed relay coil circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output for a short to B+.
B1437	Wiper Hi/Low Speed Relay Coil Circuit Short To Ground	Check the wiper high/low-speed relay coil circuit for a short to ground. Inspect the relay, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1438	Wiper Mode Select Switch Circuit Failure	Check the wiper mode select switch, wiring, connectors, and control module input. Verify switch operation and inspect the circuit for an open or short.
B1439	Wiper Mode Select Switch Circuit Open	Check the wiper mode select switch circuit for an open circuit. Inspect the switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1440	Wiper Mode Select Switch Circuit Short To Battery	Check the wiper mode select switch circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1441	Wiper Mode Select Switch Circuit Short To Ground	Check the wiper mode select switch circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1442	Door Handle Switch Circuit Failure	Check the door handle switch, wiring, connectors, and control module input. Verify switch operation and inspect the circuit for an open, short, or poor connection.
B1443	Door Handle Switch Circuit Open	Check the door handle switch circuit for an open circuit. Inspect the switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1444	Door Handle Switch Circuit Short To Battery	Check the door handle switch circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1445	Door Handle Switch Circuit Short To Ground	Check the door handle switch circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1446	Wiper Park Sense Circuit Failure	Check the wiper park position switch/sensor, wiring, connectors, and control module input. Verify the park signal and inspect for an open, short, or defective sensor.
B1447	Wiper Park Sense Circuit Open	Check the wiper park sense circuit for an open circuit. Inspect the park switch/sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1448	Wiper Park Sense Circuit Short To Battery	Check the wiper park sense circuit for an unintended connection to battery voltage. Inspect the park switch/sensor, wiring, connectors, and control module input for a short to B+.
B1449	Wiper Park Sense Circuit Short To Ground	Check the wiper park sense circuit for a short to ground. Inspect the park switch/sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1450	Wiper Wash/Delay Switch Circuit Failure	Check the wiper wash/delay switch, wiring, connectors, and control module input. Verify switch operation and inspect the circuit for an open or short.
B1451	Wiper Wash/Delay Switch Circuit Open	Check the wiper wash/delay switch circuit for an open circuit. Inspect the switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1452	Wiper Wash/Delay Switch Circuit Short To Battery	Check the wiper wash/delay switch circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1453	Wiper Wash/Delay Switch Circuit Short To Ground	Check the wiper wash/delay switch circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1454	Wiper Washer Fluid Lamp Circuit Failure	Check the washer fluid warning lamp, wiring, connectors, fuse, and control module output. Verify lamp operation and inspect for an open or short circuit.
B1455	Wiper Washer Fluid Lamp Circuit Open	Check the washer fluid warning lamp circuit for an open circuit. Inspect the lamp, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1456	Wiper Washer Fluid Lamp Circuit Short To Battery	Check the washer fluid warning lamp circuit for an unintended connection to battery voltage. Inspect the lamp, wiring, connectors, and control module output for a short to B+.
B1457	Wiper Washer Fluid Lamp Circuit Short To Ground	Check the washer fluid warning lamp circuit for a short to ground. Inspect the lamp, wiring, connectors, and control module output for damaged insulation or a wiring short.
B1458	Wiper Washer Pump Motor Relay Circuit Failure	Check the washer pump motor relay, fuse, wiring, connectors, and control module output. Verify relay operation and inspect for an open, short, or excessive current draw.
B1459	Wiper Washer Pump Motor Relay Coil Circuit Open	Check the washer pump motor relay coil circuit for an open circuit. Inspect the relay, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1460	Wiper Washer Pump Motor Relay Coil Circuit Short To Battery	Check the washer pump motor relay coil circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output for a short to B+.
B1461	Wiper Washer Pump Motor Relay Coil Circuit Short To Ground	Check the washer pump motor relay coil circuit for a short to ground. Inspect the relay, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1462	Seat Belt Switch Circuit Failure	Check the seat belt buckle switch, wiring, connectors, and control module input. Verify switch operation and inspect the circuit for an open or short.
B1463	Seat Belt Switch Circuit Open	Check the seat belt switch circuit for an open circuit. Inspect the buckle switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1464	Seat Belt Switch Circuit Short To Battery	Check the seat belt switch circuit for an unintended connection to battery voltage. Inspect the buckle switch, wiring, connectors, and control module input for a short to B+.
B1465	Wiper Brake/Run Relay Circuit Open	Check the wiper brake/run relay circuit for an open circuit. Inspect the relay, fuse, wiring, connectors, and control module connection for a broken wire or poor connection.
B1466	Wiper Hi/Low Speed Not Switching	Check the wiper high/low-speed relay, motor, switch, wiring, connectors, and control module. Verify relay operation and check for a faulty switch, motor, or control signal.
B1467	Wiper Hi/Low Speed Circuit Motor Short to Battery	Check the wiper high/low-speed motor circuit for an unintended connection to battery voltage. Inspect the motor, relay, wiring, connectors, and control module output for a short to B+.
B1468	Chime Input Request Circuit Failure	Check the chime input request circuit, switches, wiring, connectors, and control module input. Verify the request signal and inspect for an open or short circuit.
B1469	Chime Input Request Circuit Open	Check the chime input request circuit for an open circuit. Inspect the switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1470	Lamp Headlamp Input Circuit Failure	Check the headlamp input circuit, headlamp switch, wiring, connectors, fuse, and control module input. Verify the headlamp signal and inspect for an open or short circuit.
B1471	Lamp Headlamp Input Circuit Open	Check the headlamp input circuit for an open circuit. Inspect the headlamp switch, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1472	Lamp Headlamp Input Circuit Short To Ground	Check the headlamp input circuit for a short to ground. Inspect the headlamp switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1473	Wiper Low Speed Circuit Motor Failure	Check the wiper motor, low-speed circuit, relay, wiring, connectors, fuse, and control module output. Verify motor operation and inspect for an open, short, or excessive current draw.
B1474	Battery Saver Power Relay Circuit Short To Battery	Check the battery saver power relay circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output for a short to B+.
B1475	Accessory Delay Relay Contact Short To Battery	Check the accessory delay relay contacts and circuit for an unintended connection to battery voltage. Inspect the relay, wiring, connectors, and control module output for a short to B+.
B1476	Wiper High Speed Circuit Motor Failure	Check the wiper motor, high-speed circuit, relay, wiring, connectors, fuse, and control module output. Verify motor operation and inspect for an open, short, or excessive current draw.
B1477	Wiper Hi/Low Circuit Motor Short to Ground	Check the wiper high/low-speed motor circuit for a short to ground. Inspect the motor, relay, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1478	Power Window One Touch Up/Down Activated Simultaneously	Check the power window switches and one-touch control circuit for simultaneous up/down commands. Inspect the switches, wiring, connectors, and window control module for a stuck switch or incorrect input signal.
B1479	Wiper Washer Fluid Level Sensor Circuit Failure	Check the washer fluid level sensor, wiring, connectors, and control module input. Verify sensor operation and inspect the circuit for an open, short, or incorrect signal.
B1480	Wiper Washer Fluid Level Sensor Circuit Open	Check the washer fluid level sensor circuit for an open circuit. Inspect the sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1481	Wiper Washer Fluid Level Sensor Circuit Short To Battery	Check the washer fluid level sensor circuit for an unintended connection to battery voltage. Inspect the sensor, wiring, connectors, and control module input for a short to B+.
B1482	Wiper Washer Fluid Level Sensor Circuit Short To Ground	Check the washer fluid level sensor circuit for a short to ground. Inspect the sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1483	Brake Pedal Input Circuit Failure	Check the brake pedal switch/sensor, wiring, connectors, fuse, and control module input. Verify the brake pedal signal and inspect for an open, short, or faulty switch.
B1484	Brake Pedal Input Open Circuit	Check the brake pedal input circuit for an open circuit. Inspect the brake pedal switch/sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1485	Brake Pedal Input Circuit Battery Short	Check the brake pedal input circuit for an unintended connection to battery voltage. Inspect the brake switch/sensor, wiring, connectors, and control module input for a short to B+.
B1486	Brake Pedal Input Circuit Ground Short	Check the brake pedal input circuit for a short to ground. Inspect the brake switch/sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1487	Door Handle Right Front Circuit Failure	Check the right front door handle switch/sensor, wiring, connectors, and control module input. Verify handle operation and inspect for an open, short, or faulty switch.
B1488	Door Handle Right Front Circuit Open	Check the right front door handle circuit for an open circuit. Inspect the handle switch/sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1489	Door Handle Right Front Short to Battery	Check the right front door handle circuit for an unintended connection to battery voltage. Inspect the switch/sensor, wiring, connectors, and control module input for a short to B+.
B1490	Door Handle Right Front Short to Ground	Check the right front door handle circuit for a short to ground. Inspect the switch/sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1491	Ignition Cylinder Sensor Circuit Failure	Check the ignition cylinder sensor, wiring, connectors, and control module input. Verify the sensor signal and inspect for an open, short, or faulty sensor.
B1492	Ignition Cylinder Sensor Open Circuit	Check the ignition cylinder sensor circuit for an open circuit. Inspect the sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1493	Ignition Cylinder Sensor Battery Short	Check the ignition cylinder sensor circuit for an unintended connection to battery voltage. Inspect the sensor, wiring, connectors, and control module input for a short to B+.
B1494	Ignition Cylinder Sensor Ground Short	Check the ignition cylinder sensor circuit for a short to ground. Inspect the sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1495	Deck lid Punch-Out Sensor Circuit Failure	Check the deck lid punch-out sensor, wiring, connectors, and control module input. Verify sensor operation and inspect for an open, short, or incorrect signal.
B1496	Deck lid Punch-Out Sensor Open Circuit	Check the deck lid punch-out sensor circuit for an open circuit. Inspect the sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1497	Deck lid Punch-Out Sensor Battery Short	Check the deck lid punch-out sensor circuit for an unintended connection to battery voltage. Inspect the sensor, wiring, connectors, and control module input for a short to B+.
B1498	Deck lid Punch-Out Sensor Ground Short	Check the deck lid punch-out sensor circuit for a short to ground. Inspect the sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1499	Lamp Turn Signal Left Circuit Failure	Check the left turn signal lamp, bulb/LED, fuse, wiring, connectors, and control module output. Verify lamp operation and inspect for an open or short circuit.
B1500	Lamp Turn Signal Left Circuit Open	Check the left turn signal lamp circuit for an open circuit. Inspect the bulb/LED, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1501	Lamp Turn Signal Left Circuit Short To Battery	Check the left turn signal lamp circuit for an unintended connection to battery voltage. Inspect the lamp, wiring, connectors, and control module output for a short to B+.
B1502	Lamp Turn Signal Left Circuit Short To Ground	Check the left turn signal lamp circuit for a short to ground. Inspect the lamp, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1503	Lamp Turn Signal Right Circuit Failure	Check the right turn signal lamp, bulb/LED, fuse, wiring, connectors, and control module output. Verify lamp operation and inspect for an open or short circuit.
B1504	Lamp Turn Signal Right Circuit Open	Check the right turn signal lamp circuit for an open circuit. Inspect the bulb/LED, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1505	Lamp Turn Signal Right Circuit Short To Battery	Check the right turn signal lamp circuit for an unintended connection to battery voltage. Inspect the lamp, wiring, connectors, and control module output for a short to B+.
B1506	Lamp Turn Signal Right Circuit Short To Ground	Check the right turn signal lamp circuit for a short to ground. Inspect the lamp, wiring, connectors, and control module output for damaged insulation or excessive current draw.
B1507	Flash to Pass Switch Circuit Failure	Check the flash-to-pass switch, wiring, connectors, and control module input. Verify switch operation and inspect the circuit for an open, short, or incorrect signal.
B1508	Flash to Pass Switch Circuit Open	Check the flash-to-pass switch circuit for an open circuit. Inspect the switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1509	Flash to Pass Switch Circuit Short To Battery	Check the flash-to-pass switch circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1510	Flash to Pass Switch Circuit Short To Ground	Check the flash-to-pass switch circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1511	Driver Door Handle Circuit Failure	Check the driver door handle switch/sensor, wiring, connectors, and control module input. Verify handle operation and inspect for an open, short, or faulty switch.
B1512	Driver Door Handle Circuit Open	Check the driver door handle circuit for an open circuit. Inspect the handle switch/sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1513	Driver Door Handle Circuit Short To Battery	Check the driver door handle circuit for an unintended connection to battery voltage. Inspect the switch/sensor, wiring, connectors, and control module input for a short to B+.
B1514	Driver Door Handle Circuit Short To Ground	Check the driver door handle circuit for a short to ground. Inspect the switch/sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1515	Seat Driver Occupied Switch Circuit Failure	Check the driver seat occupied switch/sensor, wiring, connectors, and control module input. Verify the seat occupancy signal and inspect for an open, short, or faulty switch.
B1516	Seat Driver Occupied Switch Circuit Open	Check the driver seat occupied switch circuit for an open circuit. Inspect the switch/sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1517	Seat Driver Occupied Switch Circuit Short To Battery	Check the driver seat occupied switch circuit for an unintended connection to battery voltage. Inspect the switch/sensor, wiring, connectors, and control module input for a short to B+.
B1518	Seat Driver Occupied Switch Circuit Short To Ground	Check the driver seat occupied switch circuit for a short to ground. Inspect the switch/sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1519	Hood Switch Circuit Failure	Check the hood switch, wiring, connectors, and control module input. Verify switch operation and inspect the circuit for an open, short, or faulty switch.
B1520	Hood Switch Circuit Open	Check the hood switch circuit for an open circuit. Inspect the switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1521	Hood Switch Circuit Short To Battery	Check the hood switch circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1522	Hood Switch Circuit Short To Ground	Check the hood switch circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1523	Keyless Entry Circuit Failure	Check the keyless entry system, receiver/module, wiring, connectors, power supply, and communication lines. Verify transmitter operation and inspect for an open, short, or communication fault.
B1524	Keyless Entry Circuit Open	Check the keyless entry circuit for an open circuit. Inspect the receiver/module, wiring, connectors, power supply, and ground connections for a broken wire or poor connection.
B1525	Keyless Entry Circuit Short To Battery	Check the keyless entry circuit for an unintended connection to battery voltage. Inspect the receiver/module, wiring, connectors, and control circuit for a short to B+.
B1526	Keyless Entry Circuit Short To Ground	Check the keyless entry circuit for a short to ground. Inspect the receiver/module, wiring, connectors, and control circuit for damaged insulation or a wiring short.
B1527	Memory Set Switch Circuit Failure	Check the memory set switch, wiring, connectors, and memory seat/control module input. Verify switch operation and inspect for an open or short circuit.
B1528	Memory Set Switch Circuit Open	Check the memory set switch circuit for an open circuit. Inspect the switch, wiring, connectors, and memory module connection for a broken wire or poor connection.
B1529	Memory Set Switch Circuit Short To Battery	Check the memory set switch circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and memory module input for a short to B+.
B1530	Memory Set Switch Circuit Short To Ground	Check the memory set switch circuit for a short to ground. Inspect the switch, wiring, connectors, and memory module input for damaged insulation or a wiring short.
B1531	Memory 1 Switch Circuit Failure	Check the Memory 1 switch, wiring, connectors, and memory seat/control module input. Verify switch operation and inspect for an open or short circuit.
B1532	Memory 1 Switch Circuit Open	Check the Memory 1 switch circuit for an open circuit. Inspect the switch, wiring, connectors, and memory module connection for a broken wire or poor connection.
B1533	Memory 1 Switch Circuit Short To Battery	Check the Memory 1 switch circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1534	Memory 1 Switch Circuit Short To Ground	Check the Memory 1 switch circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1535	Memory 2 Switch Circuit Failure	Check the Memory 2 switch, wiring, connectors, and memory seat/control module input. Verify switch operation and inspect for an open or short circuit.
B1536	Memory 2 Switch Circuit Open	Check the Memory 2 switch circuit for an open circuit. Inspect the switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1537	Memory 2 Switch Circuit Short To Battery	Check the Memory 2 switch circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1538	Memory 2 Switch Circuit Short To Ground	Check the Memory 2 switch circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1539	Mirror Driver Switch Assembly Circuit Failure	Check the mirror control switch assembly, wiring, connectors, power supply, and control module input. Verify switch operation and inspect for an open or short circuit.
B1540	Mirror Driver Switch Assembly Circuit Open	Check the mirror driver switch assembly circuit for an open circuit. Inspect the switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1541	Mirror Driver Switch Assembly Circuit Short To Battery	Check the mirror driver switch assembly circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1542	Mirror Driver Switch Assembly Circuit Short To Ground	Check the mirror driver switch assembly circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1543	Seat Direction Switch Assembly Circuit Failure	Check the seat direction switch assembly, wiring, connectors, and memory seat/control module input. Verify switch operation and inspect for an open or short circuit.
B1544	Seat Direction Switch Assembly Circuit Open	Check the seat direction switch assembly circuit for an open circuit. Inspect the switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1545	Seat Direction Switch Assembly Circuit Short To Battery	Check the seat direction switch assembly circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1546	Seat Direction Switch Assembly Circuit Short To Ground	Check the seat direction switch assembly circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1547	Power Window Master Circuit Failure	Check the power window master switch, wiring, connectors, power supply, and control module. Verify switch operation and inspect for an open or short circuit.
B1548	Power Window Master Circuit Open	Check the power window master circuit for an open circuit. Inspect the master switch, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1549	Power Window Master Circuit Short to Battery	Check the power window master circuit for an unintended connection to battery voltage. Inspect the master switch, wiring, connectors, and control module circuit for a short to B+.
B1550	Power Window Master Circuit Short to Ground	Check the power window master circuit for a short to ground. Inspect the master switch, wiring, connectors, and control module circuit for damaged insulation or a wiring short.
B1551	Deck lid Release Circuit Failure	Check the deck lid release switch, actuator/solenoid, wiring, connectors, fuse, and control module output. Verify release operation and inspect for an open or short circuit.
B1552	Deck lid Release Circuit Open	Check the deck lid release circuit for an open circuit. Inspect the release switch, actuator, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1553	Deck lid Release Circuit Short to Battery	Check the deck lid release circuit for an unintended connection to battery voltage. Inspect the switch, actuator, wiring, connectors, and control module output for a short to B+.
B1554	Deck lid Release Circuit Short to Ground	Check the deck lid release circuit for a short to ground. Inspect the release switch, actuator, wiring, connectors, and control module output for damaged insulation or a wiring short.
B1555	Ignition Run/Start Circuit Failure	Check the ignition switch, ignition Run/Start circuit, wiring, connectors, fuses, relays, and control module inputs. Verify the correct voltage in both RUN and START positions.
B1556	Ignition Run/Start Circuit Open	Check the ignition Run/Start circuit for an open circuit. Inspect the ignition switch, wiring, connectors, fuse, relay, and control module connection for a broken wire or poor connection.
B1557	Ignition Run/Start Circuit Short To Battery	Check the ignition Run/Start circuit for an unintended connection to battery voltage. Inspect the ignition switch, wiring, connectors, and control module circuit for a short to B+.
B1558	Ignition Run/Start Circuit Short To Ground	Check the ignition Run/Start circuit for a short to ground. Inspect the ignition switch, wiring, connectors, fuse/relay circuit, and control module for a wiring short.
B1559	Door Lock Cylinder Circuit Failure	Check the door lock cylinder switch/sensor, wiring, connectors, and body control module input. Verify lock cylinder operation and inspect for an open or short circuit.
B1560	Door Lock Cylinder Circuit Open	Check the door lock cylinder circuit for an open circuit. Inspect the lock cylinder switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1561	Door Lock Cylinder Circuit Short To Battery	Check the door lock cylinder circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1562	Door Lock Cylinder Circuit Short To Ground	Check the door lock cylinder circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1563	Door Ajar Circuit Failure	Check the door-ajar switch/sensor, wiring, connectors, and control module input. Verify switch operation and inspect for an open or short circuit.
B1564	Door Ajar Circuit Open	Check the door-ajar circuit for an open circuit. Inspect the switch/sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1565	Door Ajar Circuit Short To Battery	Check the door-ajar circuit for an unintended connection to battery voltage. Inspect the switch/sensor, wiring, connectors, and control module input for a short to B+.
B1566	Door Ajar Circuit Short To Ground	Check the door-ajar circuit for a short to ground. Inspect the switch/sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1567	Lamp Headlamp High-Beam Circuit Failure	Check the high-beam bulbs/LEDs, fuses, wiring, connectors, relays, and control module output. Verify high-beam operation and inspect for an open or short circuit.
B1568	Lamp Headlamp High-Beam Circuit Open	Check the high-beam headlamp circuit for an open circuit. Inspect the bulbs/LEDs, wiring, connectors, fuse, relay, and control module connection for a broken wire or poor connection.
B1569	Lamp Headlamp High-Beam Circuit Short To Battery	Check the high-beam headlamp circuit for an unintended connection to battery voltage. Inspect the wiring, connectors, lamp assembly, and control module output for a short to B+.
B1570	Lamp Headlamp High-Beam Circuit Short To Ground	Check the high-beam headlamp circuit for a short to ground. Inspect the wiring, connectors, lamp assembly, and control module output for damaged insulation or a wiring short.
B1571	Door Ajar LR Circuit Failure	Check the left rear door-ajar switch/sensor, wiring, connectors, and control module input. Verify switch operation and inspect for an open or short circuit.
B1572	Door Ajar LR Circuit Open	Check the left rear door-ajar circuit for an open circuit. Inspect the switch/sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1573	Door Ajar LR Circuit Short To Battery	Check the left rear door-ajar circuit for an unintended connection to battery voltage. Inspect the switch/sensor, wiring, connectors, and control module input for a short to B+.
B1574	Door Ajar LR Circuit Short To Ground	Check the left rear door-ajar circuit for a short to ground. Inspect the switch/sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1575	Lamp Park Input Circuit Failure	Check the park lamp switch/input circuit, wiring, connectors, fuse, and control module input. Verify the park lamp signal and inspect for an open or short circuit.
B1576	Lamp Park Input Circuit Open	Check the park lamp input circuit for an open circuit. Inspect the switch, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1577	Lamp Park Input Circuit Short To Battery	Check the park lamp input circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1578	Lamp Park Input Circuit Short To Ground	Check the park lamp input circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1579	Dim Panel Increase Input Circuit Failure	Check the instrument panel dimmer switch, wiring, connectors, and control module input. Verify the dimmer signal and inspect for an open or short circuit.
B1580	Dim Panel Increase Input Circuit Open	Check the dim panel increase input circuit for an open circuit. Inspect the dimmer switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1581	Dim Panel Increase Input Circuit Short To Battery	Check the dim panel increase input circuit for an unintended connection to battery voltage. Inspect the dimmer switch, wiring, connectors, and control module input for a short to B+.
B1582	Dim Panel Increase Input Circuit Short To Ground	Check the dim panel increase input circuit for a short to ground. Inspect the dimmer switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1583	Dim Panel Decrease Input Circuit Failure	Check the instrument panel dimmer switch, wiring, connectors, and control module input. Verify the dimmer signal and inspect for an open or short circuit.
B1584	Dim Panel Decrease Input Circuit Open	Check the dim panel decrease input circuit for an open circuit. Inspect the dimmer switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1585	Dim Panel Decrease Input Circuit Short To Battery	Check the dim panel decrease input circuit for an unintended connection to battery voltage. Inspect the dimmer switch, wiring, connectors, and control module input for a short to B+.
B1586	Dim Panel Decrease Input Circuit Short To Ground	Check the dim panel decrease input circuit for a short to ground. Inspect the dimmer switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1587	Auto lamp Delay Increase Circuit Failure	Check the automatic lamp delay control, wiring, connectors, and control module input. Verify the delay adjustment signal and inspect for an open or short circuit.
B1588	Auto lamp Delay Increase Circuit Open	Check the automatic lamp delay increase circuit for an open circuit. Inspect the control switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1589	Auto lamp Delay Increase Circuit Short to Battery	Check the automatic lamp delay increase circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1590	Auto lamp Delay Increase Circuit Short to Ground	Check the automatic lamp delay increase circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1591	Auto lamp Delay Decrease Circuit Failure	Check the automatic lamp delay control, wiring, connectors, and control module input. Verify the delay adjustment signal and inspect for an open or short circuit.
B1592	Auto lamp Delay Decrease Circuit Open	Check the automatic lamp delay decrease circuit for an open circuit. Inspect the control switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1593	Auto lamp Delay Decrease Circuit Short to Battery	Check the automatic lamp delay decrease circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1594	Auto lamp Delay Decrease Circuit Short to Ground	Check the automatic lamp delay decrease circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1595	Ignition Switch Illegal Input Code	Check the ignition switch input signals and verify that the switch is providing the correct voltage/state for each ignition position. Inspect the wiring, connectors, and control module for incorrect or invalid input signals.
B1596	Service Continuous Codes	Check the control module for continuously monitored or active diagnostic trouble codes. Perform a complete scan, identify the related active codes, and diagnose the underlying fault before clearing the codes.
B1597	Driver’s Seat Seatback Auto glides Forward Switch Circuit Short to Ground	Check the driver seatback auto-glide forward switch circuit for a short to ground. Inspect the switch, wiring, connectors, and seat control module input for damaged insulation or a wiring short.
B1598	Driver’s Seat Seatback Auto glides Rearward Switch Circuit Short to Ground	Check the driver seatback auto-glide rearward switch circuit for a short to ground. Inspect the switch, wiring, connectors, and seat control module input for damaged insulation or a wiring short.
B1599	Passenger’s Seatback Auto glides Forward Switch Circuit Short to Ground	Check the passenger seatback auto-glide forward switch circuit for a short to ground. Inspect the switch, wiring, connectors, and seat control module input for damaged insulation or a wiring short.
B1600	PATS Ignition Key Transponder Signal Is Not Received	Check the ignition key transponder, antenna/receiver, wiring, connectors, and PATS module. Verify that the correct programmed key is being detected and inspect the transponder communication circuit.
B1601	PATS Received Incorrect Key-Code from Ignition Key Transponder	Verify that the correct programmed key is being used. Check the PATS transponder, key programming, antenna/receiver, wiring, and security module for communication or authentication problems.
B1602	PATS Received Invalid Format of Key-Code from Ignition Key Transponder	Check the ignition key transponder and PATS system for an invalid or corrupted key code. Verify key programming and inspect the transponder antenna, wiring, connectors, and security module.
B1603	Lamp Anti-Theft Indicator Circuit Failure	Check the anti-theft indicator lamp, wiring, connectors, fuse/power supply, and control module output. Verify lamp operation and inspect for an open or short circuit.
B1604	Lamp Anti-Theft Indicator Circuit Open	Check the anti-theft indicator lamp circuit for an open circuit. Inspect the lamp, wiring, connectors, and control module connection for a broken wire or poor connection.
B1605	Lamp Anti-Theft Indicator Circuit Short To Battery	Check the anti-theft indicator lamp circuit for an unintended connection to battery voltage. Inspect the lamp, wiring, connectors, and control module output for a short to B+.
B1606	Lamp Anti-Theft Indicator Circuit Short To Ground	Check the anti-theft indicator lamp circuit for a short to ground. Inspect the lamp, wiring, connectors, and control module output for damaged insulation or a wiring short.
B1607	Illuminated Entry Input Circuit Failure	Check the illuminated entry switches/sensors, wiring, connectors, and control module input. Verify the input signal and inspect for an open or short circuit.
B1608	Illuminated Entry Input Open Circuit	Check the illuminated entry input circuit for an open circuit. Inspect the switch/sensor, wiring, connectors, and control module connection for a broken wire or poor connection.
B1609	Illuminated Entry Input Short Circuit to Battery	Check the illuminated entry input circuit for an unintended connection to battery voltage. Inspect the switch/sensor, wiring, connectors, and control module input for a short to B+.
B1610	Illuminated Entry Input Short Circuit to Ground	Check the illuminated entry input circuit for a short to ground. Inspect the switch/sensor, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1611	Wiper Rear Mode Select Switch Circuit Failure	Check the rear wiper mode select switch, wiring, connectors, and control module input. Verify switch operation and inspect for an open or short circuit.
B1612	Wiper Rear Mode Select Switch Circuit Open	Check the rear wiper mode select switch circuit for an open circuit. Inspect the switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1613	Wiper Rear Mode Select Switch Circuit Short To Battery	Check the rear wiper mode select switch circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1614	Wiper Rear Mode Select Switch Circuit Short To Ground	Check the rear wiper mode select switch circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1615	Wiper Rear Disable Switch Circuit Failure	Check the rear wiper disable switch, wiring, connectors, and control module input. Verify switch operation and inspect for an open or short circuit.
B1616	Wiper Rear Disable Switch Circuit Open	Check the rear wiper disable switch circuit for an open circuit. Inspect the switch, wiring, connectors, and control module connection for a broken wire or poor connection.Check the rear wiper disable switch circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1617	Wiper Rear Disable Switch Circuit Short To Battery	Check the rear wiper disable switch circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1618	Wiper Rear Disable Switch Circuit Short To Ground	Check the rear wiper low-limit/park position switch, wiring, connectors, and control module input. Verify the park/low-limit signal and inspect for an open or short circuit.
B1619	Wiper Rear Low Limit Input Circuit Failure	Check the rear wiper low-limit input circuit for an open circuit. Inspect the park/limit switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1620	Wiper Rear Low Limit Input Circuit Open	Check the rear wiper low-limit input circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1621	Wiper Rear Low Limit Input Circuit Short To Battery	Check the rear wiper low-limit input circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1622	Wiper Rear Low Limit Input Circuit Short To Ground	Check the keypad illumination lamps, wiring, connectors, fuse/power supply, and control module output. Verify lamp operation and inspect for an open or short circuit.
B1623	Lamp Keypad Output Circuit Failure	Check the keypad lamp output circuit for an open circuit. Inspect the lamps, wiring, connectors, fuse, and control module connection for a broken wire or poor connection.
B1624	Lamp Keypad Output Open Circuit	Check the keypad lamp output circuit for an unintended connection to battery voltage. Inspect the lamps, wiring, connectors, and control module output for a short to B+.
B1625	Lamp Keypad Output Short Circuit to Battery	Check the keypad lamp output circuit for a short to ground. Inspect the lamps, wiring, connectors, and control module output for damaged insulation or a wiring short.
B1626	Lamp Keypad Output Short Circuit to Ground	Check the PRNDL/reverse input switch, transmission range signal, wiring, connectors, and control module input. Verify the reverse signal and inspect for an open, short, or incorrect input.
B1627	PRNDL Reverse Input Circuit Failure	Check the PRNDL/reverse input switch, transmission range signal, wiring, connectors, and control module input. Verify the reverse signal and inspect for an open, short, or incorrect input.
B1628	PRNDL Reverse Input Open Circuit	Check the PRNDL reverse input circuit for an open circuit. Inspect the switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1629	PRNDL Reverse Input Short to Battery	Check the PRNDL reverse input circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and control module input for a short to B+.
B1630	PRNDL Reverse Input Short Circuit to Ground	Check the PRNDL reverse input circuit for a short to ground. Inspect the switch, wiring, connectors, and control module input for damaged insulation or a wiring short.
B1631	Mirror Driver Left Circuit Failure	Check the driver-side left mirror circuit, switch, wiring, connectors, and control module. Verify mirror operation and inspect for an open or short circuit.
B1632	Mirror Driver Left Circuit Open	Check the driver-side left mirror circuit for an open circuit. Inspect the mirror switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1633	Mirror Driver Left Circuit Short To Battery	Check the driver-side left mirror circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and mirror/control module circuit for a short to B+.
B1634	Mirror Driver Left Circuit Short To Ground	Check the driver-side left mirror circuit for a short to ground. Inspect the switch, wiring, connectors, and mirror/control module circuit for damaged insulation or a wiring short.
B1635	Mirror Driver Right Circuit Failure	Check the driver-side right mirror circuit, switch, wiring, connectors, and control module. Verify mirror operation and inspect for an open or short circuit.
B1636	Mirror Driver Right Circuit Open	Check the driver-side right mirror circuit for an open circuit. Inspect the mirror switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1637	Mirror Driver Right Circuit Short To Battery	Check the driver-side right mirror circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and mirror/control module circuit for a short to B+.
B1638	Mirror Driver Right Short To Ground	Check the driver-side right mirror circuit for a short to ground. Inspect the switch, wiring, connectors, and mirror/control module circuit for damaged insulation or a wiring short.
B1639	Mirror Passenger Left Circuit Failure	Check the passenger-side left mirror circuit, switch, wiring, connectors, and control module. Verify mirror operation and inspect for an open or short circuit.
B1640	Mirror Passenger Left Circuit Open	Check the passenger-side left mirror circuit for an open circuit. Inspect the mirror switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1641	Mirror Passenger Left Circuit Short To Battery	Check the passenger-side left mirror circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and mirror/control module circuit for a short to B+.
B1642	Mirror Passenger Left Circuit Short To Ground	Check the passenger-side left mirror circuit for a short to ground. Inspect the switch, wiring, connectors, and mirror/control module circuit for damaged insulation or a wiring short.
B1643	Mirror Passenger Right Circuit Failure	Check the passenger-side right mirror circuit, switch, wiring, connectors, and control module. Verify mirror operation and inspect for an open or short circuit.
B1644	Mirror Passenger Right Circuit Open	Check the passenger-side right mirror circuit for an open circuit. Inspect the mirror switch, wiring, connectors, and control module connection for a broken wire or poor connection.
B1645	Mirror Passenger Right Circuit Short To Battery	Check the passenger-side right mirror circuit for an unintended connection to battery voltage. Inspect the switch, wiring, connectors, and mirror/control module circuit for a short to B+.
B1646	Mirror Passenger Right Circuit Short To Ground	Check the passenger-side right mirror circuit for a short to ground. Inspect the switch, wiring, connectors, and mirror/control module circuit for damaged insulation or a wiring short.
B1647	Seat Driver Recline Forward Circuit Failure	Check the driver seat recline forward switch, motor, wiring, connectors, and seat control module. Verify motor operation and inspect for an open or short circuit.
B1648	Seat Driver Recline Forward Circuit Open	Check the driver seat recline forward circuit for an open circuit. Inspect the switch, motor, wiring, connectors, and seat control module connection for a broken wire or poor connection.
B1649	Seat Driver Recline Forward Circuit Short To Battery	Check the driver seat recline forward circuit for an unintended connection to battery voltage. Inspect the switch, motor, wiring, connectors, and seat control module circuit for a short to B+.
B1650	Seat Driver Recline Forward Circuit Short To Ground	Check the driver seat recline forward circuit for a short to ground. Inspect the switch, motor, wiring, connectors, and seat control module circuit for damaged insulation or a wiring short.
B1651	Seat Driver Recline Backward Circuit Failure	Check the driver seat recline backward switch, motor, wiring, connectors, and seat control module. Verify motor operation and inspect for an open or short circuit.
B1652	Seat Driver Recline Backward Circuit Open	Check the driver seat recline backward circuit for an open circuit. Inspect the switch, motor, wiring, connectors, and seat control module connection for a broken wire or poor connection.
B1653	Seat Driver Recline Backward Circuit Short To Battery	Check the driver seat recline backward circuit for an unintended connection to battery voltage. Inspect the switch, motor, wiring, connectors, and seat control module circuit for a short to B+.
B1654	Seat Driver Recline Backward Circuit Short To Ground	Check the driver seat recline backward circuit for a short to ground. Inspect the switch, motor, wiring, connectors, and seat control module circuit for damaged insulation or a wiring short.
B1655	Seat Driver Rear up Circuit Failure	Check the driver seat rear-up switch, motor, wiring, connectors, and seat control module. Verify seat movement and inspect for an open or short circuit.
B1656	Seat Driver Rear up Circuit Open	Check the driver seat rear-up circuit for an open circuit. Inspect the switch, motor, wiring, connectors, and seat control module connection for a broken wire or poor connection.
B1657	Seat Driver Rear up Circuit Short to Battery	Check the driver seat rear-up circuit for an unintended connection to battery voltage. Inspect the switch, motor, wiring, connectors, and seat control module circuit for a short to B+.
B1658	Seat Driver Rear Up Circuit Short To Ground	Check the wiring and connectors for a short to ground. Inspect the driver seat switch and motor circuit. Repair damaged wiring or connectors and replace the faulty switch or motor if necessary.
B1659	Seat Driver Front up Circuit Failure	Check the driver seat front-up switch, wiring, connectors, and power supply. Repair the circuit or replace the faulty switch/component if necessary.
B1660	Seat Driver Front up Circuit Open	Check the circuit for an open wire, loose connector, or damaged terminal. Repair the wiring or connector and clear the fault code.
B1661	Seat Driver Front up Circuit Short to Battery	Inspect the circuit for a short to battery voltage. Check wiring insulation and connectors, repair the short, and verify proper operation.
B1662	Seat Driver Front Up Circuit Short To Ground	Inspect the circuit for a short to ground. Check the wiring, connectors, and switch for damage. Repair the short and clear the code.
B1663	Seat Driver Front up/Down Motor Stalled	Check for mechanical obstruction or a seized seat mechanism. Inspect the motor, wiring, and power supply. Repair the mechanism or replace the motor if necessary.
B1664	Seat Driver Rear Up/Down Motor Stalled	Check the seat mechanism for obstruction or binding. Test the motor and wiring for proper voltage and operation. Repair the mechanism or replace the motor if faulty.
B1665	Seat Driver Forward/Backward Motor Stalled	Inspect the seat rails and mechanism for obstruction or binding. Check the motor, wiring, and connectors. Repair the mechanism or replace the motor if necessary.
B1666	Seat Driver Recline Motor Stalled	Check the seatback mechanism for mechanical obstruction. Inspect the recline motor, wiring, and connectors. Repair or replace the faulty component.
B1667	Mirror Driver Up/Down Motor Stalled	Check the driver’s mirror for mechanical obstruction. Inspect the mirror motor, wiring, connectors, and power supply. Replace the motor if necessary.
B1668	Mirror Driver Right/Left Motor Stalled	Check the driver’s mirror mechanism for binding or obstruction. Test the motor and wiring and replace the faulty motor if necessary.
B1669	Mirror Passenger Up/Down Motor Stalled	Check the passenger mirror for obstruction or binding. Inspect the motor, wiring, connectors, and power supply. Repair or replace the faulty component.
B1670	Mirror Passenger Right/Left Motor Stalled	Inspect the passenger mirror mechanism for binding. Check the motor, wiring, connectors, and power supply. Replace the motor if necessary.
B1671	Battery Module Voltage Out Of Range	Check battery module voltage and power/ground connections. Inspect the battery module and related wiring. Diagnose the charging system and replace the faulty module if required.
B1672	Seat Driver Occupied Input Circuit Failure	Check the driver seat occupancy switch/sensor, wiring, connectors, and power supply. Repair the circuit or replace the faulty sensor/switch.
B1673	Seat Driver Occupied Input Circuit Open	Check the circuit for an open wire, loose connector, or damaged terminal. Repair the wiring and verify the sensor/switch signal.
B1674	Seat Driver Occupied Input Circuit Short To Battery	Inspect the circuit for unwanted battery voltage. Check wiring and connectors for damage or insulation failure. Repair the short and clear the code.
B1675	Seat Driver Occupied Input Circuit Short To Ground	Inspect the circuit for a short to ground. Check the wiring, connectors, and sensor/switch. Repair the short and verify the signal.
B1676	Battery Pack Voltage Out Of Range	Measure battery pack voltage and inspect the battery connections, wiring, and charging system. Diagnose the battery module and replace defective components if necessary.
B1677	Alarm Panic Input Circuit Failure	Check the panic switch, wiring, connectors, and input signal. Repair the circuit or replace the faulty switch/component.
B1678	Alarm Panic Input Circuit Open	Inspect the panic input circuit for an open wire or disconnected connector. Repair the circuit and verify proper switch operation.
B1679	Alarm Panic Input Circuit Short To Battery	Check the panic input circuit for an unintended connection to battery voltage. Repair damaged wiring or connectors and clear the code.
B1680	Alarm Panic Input Circuit Short To Ground	Check the panic input circuit for a short to ground. Inspect wiring, connectors, and the switch. Repair the short and verify operation.
B1681	PATS Transceiver Module Signal Is Not Received	Check the PATS transceiver, antenna ring, wiring, connectors, and power supply. Verify communication between the transceiver and security system.
B1682	PATS Is Disabled (Check Link between PATS and Transponder)	Check the PATS transceiver, key/transponder, wiring, and communication link. Verify that the correct programmed key is being used and perform the required security-system relearn if necessary.
B1683	Mirror Driver/Passenger Switch Circuit Failure	Check the mirror control switch, wiring, connectors, and power supply. Repair the circuit or replace the faulty switch.
B1684	Mirror Driver/Passenger Switch Circuit Open	Inspect the mirror switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify switch operation.
B1685	Lamp Dome Input Circuit Failure	Check the dome-lamp input circuit, switch, wiring, connectors, and BCM input. Repair the circuit or replace the faulty component.
B1686	Lamp Dome Input Circuit Open	Check the dome-lamp input circuit for an open wire or disconnected connector. Repair the wiring and verify the input signal.
B1687	Lamp Dome Input Circuit Short To Battery	Inspect the dome-lamp input circuit for an unwanted battery-voltage connection. Repair damaged wiring or connectors and clear the fault code.
B1688	Lamp Dome Input Circuit Short To Ground	Check the dome-lamp input circuit for a short to ground. Inspect the wiring, connectors, and dome-lamp switch. Repair the short and verify proper operation.
B1689	Auto lamp Delay Circuit Failure	Check the automatic lamp delay circuit, switch/input, wiring, connectors, and BCM. Repair the circuit or replace the faulty component if necessary.
B1690	Auto lamp Delay Circuit Open	Inspect the auto lamp delay circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify operation.
B1691	Auto lamp Delay Circuit Short to Battery	Check the circuit for unwanted battery voltage. Inspect wiring and connectors for damaged insulation or incorrect connections. Repair the short and clear the code.
B1692	Auto lamp Delay Circuit Short to Ground	Inspect the auto lamp delay circuit for a short to ground. Check wiring, connectors, and the related switch/input. Repair the short and verify operation.
B1693	Auto lamp On Circuit Failure	Check the automatic lamp-on circuit, switch/input, wiring, connectors, and BCM output. Repair the circuit or replace the faulty component if necessary.
B1694	Auto lamp On Circuit Open	Check the automatic lamp-on circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify the input/output signal.
B1695	Auto lamp On Circuit Short to Battery	Inspect the automatic lamp-on circuit for an unintended connection to battery voltage. Check wiring and connectors for insulation damage and repair the short.
B1696	Auto lamp On Circuit Short to Ground	Check the automatic lamp-on circuit for a short to ground. Inspect wiring, connectors, and the related switch/input. Repair the short and clear the code.
B1697	Mirror Driver/Passenger Switch Circuit Short To Battery	Check the mirror control switch circuit for unwanted battery voltage. Inspect the switch, wiring, and connectors. Repair the short or replace the faulty switch.
B1698	Mirror Driver/Passenger Switch Circuit Short To Ground	Inspect the mirror control switch circuit for a short to ground. Check the switch, wiring, and connectors. Repair the short and verify mirror operation.
B1699	Passenger’s Seat Occupied Switch Circuit Short to Ground	Check the passenger seat occupancy switch/sensor circuit for a short to ground. Inspect wiring and connectors and repair the short. Replace the sensor/switch if necessary.
B1700	Passenger’s Seatbelt Tension Reducer Circuit Short to Ground	Inspect the seatbelt tension reducer circuit for a short to ground. Check wiring, connectors, and the tension reducer circuit. Repair the short and verify operation.
B1701	Seat Driver Recline Forward Switch Circuit Failure	Check the driver seat recline-forward switch, wiring, connectors, and power supply. Repair the circuit or replace the faulty switch if necessary.
B1702	Seat Driver Recline Forward Switch Circuit Open	Inspect the recline-forward switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify switch operation.
B1703	Seat Driver Recline Forward Switch Circuit Short To Battery	Check the recline-forward switch circuit for unwanted battery voltage. Inspect the wiring, connectors, and switch for damage. Repair the short and clear the code.
B1704	Seat Driver Recline Forward Switch Circuit Short To Ground	Check the recline-forward switch circuit for a short to ground. Inspect the wiring, connectors, and switch. Repair the short and verify operation.
B1705	Seat Driver Recline Rearward Switch Circuit Failure	Check the driver seat recline-rearward switch, wiring, connectors, and power supply. Repair the circuit or replace the faulty switch if necessary.
B1706	Seat Driver Recline Rearward Switch Circuit Open	Inspect the recline-rearward switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify switch operation.
B1707	Seat Driver Recline Rearward Switch Circuit Short To Battery	Check the recline-rearward switch circuit for unwanted battery voltage. Inspect wiring and connectors for damage or insulation failure. Repair the short and clear the code.
B1708	Seat Driver Recline Rearward Switch Circuit Short To Ground	Inspect the recline-rearward switch circuit for a short to ground. Check wiring, connectors, and the switch. Repair the short and verify operation.
B1709	Seat Driver Front up Switch Circuit Failure	Check the driver seat front-up switch, wiring, connectors, and power supply. Repair the circuit or replace the faulty switch if necessary.
B1710	Seat Driver Front up Switch Circuit Open	Check the front-up switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify switch operation.
B1711	Seat Driver Front up Switch Circuit Short to Battery	Inspect the front-up switch circuit for an unwanted connection to battery voltage. Check wiring, connectors, and the switch. Repair the short and clear the code.
B1712	Seat Driver Front up Switch Circuit Short to Ground	Check the front-up switch circuit for a short to ground. Inspect the wiring, connectors, and switch. Repair the short and verify operation.
B1713	Seat Driver Front down Switch Circuit Failure	Check the driver seat front-down switch, wiring, connectors, and power supply. Repair the circuit or replace the faulty switch if necessary.
B1714	Seat Driver Front down Switch Circuit Open	Inspect the front-down switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify switch operation.
B1715	Seat Driver Front down Switch Circuit Short to Battery	Check the front-down switch circuit for unwanted battery voltage. Inspect the wiring, connectors, and switch. Repair the short and clear the code.
B1716	Seat Driver Front down Switch Circuit Short to Ground	Check the front-down switch circuit for a short to ground. Inspect the wiring, connectors, and switch. Repair the short and verify proper operation.
B1717	Seat Driver Forward Switch Circuit Failure	Check the driver seat forward switch, wiring, connectors, and power supply. Test the switch for proper operation and repair or replace the faulty component if necessary.
B1718	Seat Driver Forward Switch Circuit Open	Check the driver seat forward switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify switch operation.
B1719	Seat Driver Forward Switch Circuit Short To Battery	Check the driver seat forward switch circuit for unwanted battery voltage. Inspect the wiring, connectors, and switch for insulation damage. Repair the short and clear the code.
B1720	Seat Driver Forward Switch Circuit Short To Ground	Inspect the driver seat forward switch circuit for a short to ground. Check the wiring, connectors, and switch. Repair the short and verify operation.
B1721	Seat Driver Rearward Switch Circuit Failure	Check the driver seat rearward switch, wiring, connectors, and power supply. Test the switch and repair or replace the faulty component if necessary.
B1722	Seat Driver Rearward Switch Circuit Open	Inspect the driver seat rearward switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify switch operation.
B1723	Seat Driver Rearward Switch Circuit Short To Battery	Check the driver seat rearward switch circuit for unwanted battery voltage. Inspect wiring, connectors, and the switch for damage. Repair the short and clear the code.
B1724	Seat Driver Rearward Switch Circuit Short To Ground	Check the driver seat rearward switch circuit for a short to ground. Inspect the wiring, connectors, and switch. Repair the short and verify proper operation.
B1725	Seat Driver Rear up Switch Circuit Failure	Check the driver seat rear-up switch, wiring, connectors, and power supply. Test the switch and repair or replace the faulty component if necessary.
B1726	Seat Driver Rear up Switch Circuit Open	Check the rear-up switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify switch operation.
B1727	Seat Driver Rear up Switch Circuit Short to Battery	Inspect the rear-up switch circuit for unwanted battery voltage. Check the wiring, connectors, and switch for insulation damage. Repair the short and clear the code.
B1728	Seat Driver Rear up Switch Circuit Short to Ground	Check the rear-up switch circuit for a short to ground. Inspect the wiring, connectors, and switch. Repair the short and verify operation.
B1729	Seat Driver Rear down Switch Circuit Failure	Check the driver seat rear-down switch, wiring, connectors, and power supply. Test the switch and repair or replace the faulty component if necessary.
B1730	Seat Driver Rear down Switch Circuit Open	Inspect the rear-down switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify switch operation.
B1731	Seat Driver Rear down Switch Circuit Short to Battery	Check the rear-down switch circuit for unwanted battery voltage. Inspect wiring, connectors, and the switch for damage. Repair the short and clear the code.
B1732	Seat Driver Rear down Switch Circuit Short to Ground	Check the rear-down switch circuit for a short to ground. Inspect the wiring, connectors, and switch. Repair the short and verify proper operation.
B1733	Mirror Driver Vertical Switch Circuit Failure	Check the driver mirror vertical control switch, wiring, connectors, and power supply. Test the switch and repair or replace the faulty component if necessary.
B1734	Mirror Driver Vertical Switch Circuit Open	Check the driver mirror vertical switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify switch operation.
B1735	Mirror Driver Vertical Switch Circuit Short To Battery	Inspect the driver mirror vertical switch circuit for unwanted battery voltage. Check the wiring, connectors, and switch for insulation damage. Repair the short and clear the code.
B1736	Mirror Driver Vertical Switch Circuit Short To Ground	Check the driver mirror vertical switch circuit for a short to ground. Inspect the wiring, connectors, and switch. Repair the short and verify operation.
B1737	Mirror Driver Horizontal Switch Circuit Failure	Check the driver mirror horizontal control switch, wiring, connectors, and power supply. Test the switch and repair or replace the faulty component if necessary.
B1738	Mirror Driver Horizontal Switch Circuit Open	Inspect the driver mirror horizontal switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify switch operation.
B1739	Mirror Driver Horizontal Switch Circuit Short To Battery	Check the driver mirror horizontal switch circuit for unwanted battery voltage. Inspect the wiring, connectors, and switch for damage. Repair the short and clear the code.
B1740	Mirror Driver Horizontal Switch Circuit Short To Ground	Check the driver mirror horizontal switch circuit for a short to ground. Inspect the wiring, connectors, and switch. Repair the short and verify proper operation.
B1741	Mirror Passenger Vertical Switch Circuit Failure	Check the passenger mirror vertical control switch, wiring, connectors, and power supply. Test the switch and repair or replace the faulty component if necessary.
B1742	Mirror Passenger Vertical Switch Circuit Open	Check the passenger mirror vertical switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify switch operation.
B1743	Mirror Passenger Vertical Switch Circuit Short To Battery	Check the passenger mirror vertical switch circuit for unwanted battery voltage. Inspect the wiring, connectors, and switch for insulation damage. Repair the short and clear the code.
B1744	Mirror Passenger Vertical Switch Circuit Short To Ground	Inspect the passenger mirror vertical switch circuit for a short to ground. Check the wiring, connectors, and switch. Repair the short and verify proper operation.
B1745	Mirror Passenger Horizontal Switch Circuit Failure	Check the passenger mirror horizontal control switch, wiring, connectors, and power supply. Test the switch and repair or replace the faulty component if necessary.
B1746	Mirror Passenger Horizontal Switch Circuit Open	Check the passenger mirror horizontal switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify switch operation.
B1747	Mirror Passenger Horizontal Switch Circuit Short To Battery	Check the passenger mirror horizontal switch circuit for unwanted battery voltage. Inspect the wiring, connectors, and switch for damage. Repair the short and clear the code.
B1748	Mirror Passenger Horizontal Switch Circuit Short To Ground	Check the passenger mirror horizontal switch circuit for a short to ground. Inspect the wiring, connectors, and switch. Repair the short and verify operation.
B1749	Park/Neutral Switch Circuit Failure	Check the park/neutral switch, wiring, connectors, power supply, and signal circuit. Verify the switch changes state correctly in Park and Neutral. Repair or replace the faulty component if necessary.
B1750	Park/Neutral Switch Circuit Open	Inspect the park/neutral switch circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify the switch signal.
B1751	Park/Neutral Switch Circuit Short To Battery	Check the park/neutral switch circuit for unwanted battery voltage. Inspect wiring, connectors, and the switch for insulation damage. Repair the short and verify operation.
B1752	Park/Neutral Switch Circuit Short To Ground	Inspect the park/neutral switch circuit for a short to ground. Check the wiring, connectors, and switch. Repair the short and verify the correct Park/Neutral signal.
B1753	Hazard Flash Output Circuit Failure	Check the hazard flasher output circuit, BCM, wiring, connectors, and related lamps. Verify power supply and output operation. Repair the circuit or replace the faulty component if necessary.
B1754	Hazard Flash Output Circuit Open	Check the hazard flash output circuit for an open wire, disconnected connector, or damaged terminal. Repair the circuit and verify hazard-lamp operation.
B1755	Hazard Flash Output Circuit Short Battery	Inspect the hazard flash output circuit for an unwanted connection to battery voltage. Check wiring and connectors for damage. Repair the short and clear the code.
B1756	Hazard Flash Output Circuit Short To Ground	Check the hazard flash output circuit for a short to ground. Inspect the wiring, connectors, and output circuit. Repair the short and verify hazard-lamp operation.
B1757	Seat Driver Rear down Circuit Failure	Check the driver seat rear-down circuit, switch, wiring, connectors, and power supply. Test the switch and motor circuit and repair or replace the faulty component if necessary.
B1758	Seat Driver Rear down Circuit Open	Inspect the driver seat rear-down circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify seat operation.
B1759	Seat Driver Rear down Circuit Short to Battery	Check the driver seat rear-down circuit for unwanted battery voltage. Inspect wiring, connectors, and the switch for insulation damage. Repair the short and clear the code.
B1760	Seat Driver Rear Down Circuit Short To Ground	Inspect the driver seat rear-down circuit for a short to ground. Check the wiring, connectors, switch, and motor circuit. Repair the short and verify operation.
B1761	Seat Driver Front down Circuit Failure	Check the driver seat front-down circuit, switch, wiring, connectors, and power supply. Test the switch and motor circuit and repair or replace the faulty component if necessary.
B1762	Seat Driver Front down Circuit Open	Check the driver seat front-down circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify seat operation.
B1763	Seat Driver Front down Circuit Short to Battery	Inspect the driver seat front-down circuit for unwanted battery voltage. Check wiring, connectors, and the switch for damage. Repair the short and clear the code.
B1764	Seat Driver Front Down Circuit Short To Ground	Check the driver seat front-down circuit for a short to ground. Inspect the wiring, connectors, switch, and motor circuit. Repair the short and verify operation.
B1765	Seat Driver Forward Circuit Failure	Check the driver seat forward circuit, switch, wiring, connectors, and power supply. Test the motor circuit and repair or replace the faulty component if necessary.
B1766	Seat Driver Forward Circuit Open	Inspect the driver seat forward circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify seat operation.
B1767	Seat Driver Forward Circuit Short To Battery	Check the driver seat forward circuit for unwanted battery voltage. Inspect the wiring, connectors, and switch for insulation damage. Repair the short and clear the code.
B1768	Seat Driver Forward Circuit Short To Ground	Inspect the driver seat forward circuit for a short to ground. Check the wiring, connectors, switch, and motor circuit. Repair the short and verify operation.
B1769	Seat Driver Backward Circuit Failure	Check the driver seat backward circuit, switch, wiring, connectors, and power supply. Test the motor circuit and repair or replace the faulty component if necessary.
B1770	Seat Driver Backward Circuit Open	Check the driver seat backward circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify seat operation.
B1771	Seat Driver Backward Circuit Short To Battery	Inspect the driver seat backward circuit for unwanted battery voltage. Check wiring, connectors, and the switch for insulation damage. Repair the short and clear the code.
B1772	Seat Driver Backward Circuit Short To Ground	Check the driver seat backward circuit for a short to ground. Inspect the wiring, connectors, switch, and motor circuit. Repair the short and verify proper operation.
B1773	Mirror Driver up Circuit Failure	Check the driver mirror up circuit, switch, motor, wiring, connectors, and power supply. Repair the circuit or replace the faulty component if necessary.
B1774	Mirror Driver up Circuit Open	Inspect the driver mirror up circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify mirror operation.
B1775	Mirror Driver up Circuit Short to Battery	Check the driver mirror up circuit for unwanted battery voltage. Inspect the wiring, connectors, and switch/motor circuit for insulation damage. Repair the short and clear the code.
B1776	Mirror Driver Up Circuit Short To Ground	Inspect the driver mirror up circuit for a short to ground. Check the wiring, connectors, switch, and mirror motor. Repair the short and verify operation.
B1777	Driver’s Seatbelt Tension Reducer Circuit Short to Ground	Check the driver’s seatbelt tension reducer circuit for a short to ground. Inspect the wiring and connectors for damage. Repair the short and verify proper system operation.
B1778	Mirror Driver down Circuit Failure	Check the driver mirror down circuit, switch, motor, wiring, connectors, and power supply. Repair the circuit or replace the faulty component if necessary.
B1779	Mirror Driver down Circuit Open	Inspect the driver mirror down circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify mirror operation.
B1780	Mirror Driver down Circuit Short to Battery	Check the driver mirror down circuit for unwanted battery voltage. Inspect wiring, connectors, and the switch/motor circuit for insulation damage. Repair the short and clear the code.
B1781	Mirror Driver down Short to Ground	Inspect the driver mirror down circuit for a short to ground. Check the wiring, connectors, switch, and mirror motor. Repair the short and verify operation.
B1782	Mirror Passenger up Circuit Failure	Check the passenger mirror up circuit, switch, motor, wiring, connectors, and power supply. Repair the circuit or replace the faulty component if necessary.
B1783	Mirror Passenger up Circuit Open	Inspect the passenger mirror up circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify mirror operation.
B1784	Mirror Passenger up Circuit Short to Battery	Check the passenger mirror up circuit for unwanted battery voltage. Inspect the wiring, connectors, and switch/motor circuit for damage. Repair the short and clear the code.
B1785	Mirror Passenger Up Circuit Short To Ground	Inspect the passenger mirror up circuit for a short to ground. Check the wiring, connectors, switch, and mirror motor. Repair the short and verify operation.
B1786	Mirror Passenger down Circuit Failure	Check the passenger mirror down circuit, switch, motor, wiring, connectors, and power supply. Repair the circuit or replace the faulty component if necessary.
B1787	Mirror Passenger down Circuit Open	Check the passenger mirror down circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify mirror operation.
B1788	Mirror Passenger down Circuit Short to Battery	Inspect the passenger mirror down circuit for unwanted battery voltage. Check wiring, connectors, and the switch/motor circuit for insulation damage. Repair the short and clear the code.
B1789	Mirror Passenger Down Circuit Short To Ground	Check the passenger mirror down circuit for a short to ground. Inspect the wiring, connectors, switch, and mirror motor. Repair the short and verify operation.
B1790	Auto lamp Sensor Input Circuit Failure	Check the automatic lamp sensor, wiring, connectors, power supply, and sensor signal. Repair the circuit or replace the faulty sensor if necessary.
B1791	Auto lamp Sensor Input Circuit Open	Inspect the auto lamp sensor input circuit for an open wire, loose connector, or damaged terminal. Repair the circuit and verify the sensor signal.
B1792	Auto lamp Sensor Input Circuit Short to Battery	Check the auto lamp sensor input circuit for unwanted battery voltage. Inspect wiring and connectors for insulation damage. Repair the short and clear the code.
B1793	Auto lamp Sensor Input Circuit Short to Ground	Inspect the auto lamp sensor input circuit for a short to ground. Check the wiring, connectors, and sensor. Repair the short and verify proper operation.
B1794	Lamp Headlamp Low-Beam Circuit Failure	Check the low-beam headlamp circuit, bulbs, fuse, relay, wiring, connectors, and BCM/headlamp control output. Repair the circuit or replace the faulty component.
B1795	Lamp Headlamp Low-Beam Circuit Open	Inspect the low-beam circuit for an open wire, blown fuse, disconnected connector, or damaged terminal. Repair the circuit and verify low-beam operation.
B1796	Lamp Headlamp Low-Beam Circuit Short To Battery	Check the low-beam circuit for an unintended connection to battery voltage. Inspect wiring and connectors for insulation damage. Repair the short and clear the code.
B1797	Lamp Headlamp Low-Beam Circuit Short To Ground	Inspect the low-beam circuit for a short to ground. Check the wiring, connectors, bulb, and control module output. Repair the short and verify headlamp operation.
B1798	Lamp Turn Signal Front Output Circuit Failure	Check the front turn-signal output circuit, bulbs, fuse, wiring, connectors, and BCM output. Repair the circuit or replace the faulty component if necessary.
B1799	Lamp Turn Signal Front Output Circuit Open	Inspect the front turn-signal output circuit for an open wire, disconnected connector, damaged terminal, or failed bulb. Repair the circuit and verify operation.
B1800	Lamp Turn Signal Front Output Circuit Short To Battery	Check the front turn-signal output circuit for unwanted battery voltage. Inspect wiring and connectors for insulation damage. Repair the short and clear the code.
B1801	Lamp Turn Signal Front Output Circuit Short To Ground	Inspect the front turn-signal output circuit for a short to ground. Check the wiring, connectors, bulb, and BCM output. Repair the short and verify turn-signal operation.
B1802	Lamp Turn Signal Rear Output Circuit Failure	Check the rear turn-signal output circuit, bulbs, fuse, wiring, connectors, and BCM output. Repair the circuit or replace the faulty component if necessary.
B1803	Lamp Turn Signal Rear Output Circuit Open	Inspect the rear turn signal wiring and connectors for breaks or loose connections, then repair the wiring or connector as needed.
B1804	Lamp Turn Signal Rear Output Circuit Short To Battery	Inspect the rear turn signal wiring for damaged insulation or contact with a power supply, then repair or replace the damaged wiring.
B1805	Lamp Turn Signal Rear Output Circuit Short To Ground	Check the rear turn signal wiring for damaged insulation or contact with ground, then repair or replace the affected wiring.
B1806	Lamp Tail Output Circuit Failure	Inspect the tail lamp, wiring, connectors, and power supply for faults, and repair or replace the defective component.
B1807	Lamp Tail Output Circuit Open	Check the tail lamp wiring and connectors for an open or loose connection, then repair the circuit or connector as required.
B1808	Lamp Tail Output Circuit Short To Battery	Inspect the tail lamp circuit for damaged wiring or an unintended connection to battery voltage, then repair the affected circuit.
B1809	Lamp Tail Output Circuit Short To Ground	Check the tail lamp circuit for damaged wiring or a short to ground, then repair or replace the damaged wiring.
B1810	Lamp Backup Switch Input Circuit Failure	Inspect the backup switch, wiring, connectors, and power supply, and repair or replace the faulty component or connection.
B1811	Lamp Backup Switch Input Circuit Open	Check the backup switch circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1812	Lamp Backup Switch Input Circuit Short To Battery	Inspect the backup switch wiring for a short to battery voltage, then repair or replace the damaged wiring and connectors.
B1813	Lamp Backup Switch Input Circuit Short To Ground	Check the backup switch circuit for damaged insulation or a short to ground, then repair the affected wiring.
B1814	Wiper Rear Motor down Relay Coil Circuit Failure	Inspect the rear wiper down relay, coil wiring, connectors, and power supply, and replace the relay or repair the circuit if necessary.
B1815	Wiper Rear Motor down Relay Coil Circuit Open	Check the relay coil circuit for broken wires, loose connectors, or poor continuity, then repair the circuit as required.
B1816	Wiper Rear Motor down Relay Coil Circuit Short to Battery	Inspect the relay coil wiring for unintended contact with battery voltage, then repair or replace the damaged wiring.
B1817	Wiper Rear Motor down Relay Coil Circuit Short to Ground	Check the relay coil wiring for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1818	Wiper Rear Motor up Relay Coil Circuit Failure	Inspect the rear wiper up relay, coil wiring, connectors, and power supply, and replace the relay or repair the circuit if necessary.
B1819	Wiper Rear Motor up Relay Coil Circuit Open	Check the relay coil circuit for broken wires, loose connectors, or poor continuity, then repair the circuit as required.
B1820	Wiper Rear Motor up Relay Coil Circuit Short to Battery	Inspect the relay coil wiring for unintended contact with battery voltage, then repair or replace the damaged wiring.
B1821	Wiper Rear Motor up Relay Coil Circuit Short to Ground	Check the relay coil wiring for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1822	Wiper Rear Park Sense Input Circuit Failure	Inspect the rear wiper park switch, wiring, connectors, and input signal, and repair or replace the faulty component.
B1823	Wiper Rear Park Sense Input Circuit Open	Check the park sense circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1824	Wiper Rear Park Sense Input Circuit Short To Battery	Inspect the park sense wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1825	Wiper Rear Park Sense Input Circuit Short To Ground	Check the park sense circuit for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1826	Wiper Rear High Limit Input Circuit Failure	Inspect the rear wiper high limit switch, wiring, connectors, and input signal, and repair or replace the faulty component.
B1827	Wiper Rear High Limit Input Circuit Open	Check the high limit input circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1828	Wiper Rear High Limit Input Circuit Short To Battery	Inspect the high limit input wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1829	Wiper Rear High Limit Input Circuit Short To Ground	Check the high limit input circuit for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1830	Door Unlock Disarm Switch Circuit Failure	Inspect the door unlock disarm switch, wiring, connectors, and power supply, and repair or replace the faulty component.
B1831	Door Unlock Disarm Switch Circuit Open	Check the door unlock disarm switch circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1832	Door Unlock Disarm Switch Circuit Short To Battery	Inspect the door unlock disarm switch wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1833	Door Unlock Disarm Switch Circuit Short To Ground	Check the switch wiring for damaged insulation or a short to ground, then repair or replace the affected wiring.
B1834	Door Unlock Disarm Output Circuit Failure	Inspect the output circuit, wiring, connectors, and control module for faults, then repair or replace the defective component.
B1835	Door Unlock Disarm Output Circuit Open	Check the output circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1836	Door Unlock Disarm Output Circuit Short To Battery	Inspect the output wiring for an unintended connection to battery voltage, then repair or replace the damaged wiring.
B1837	Door Unlock Disarm Output Circuit Short To Ground	Check the output wiring for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1838	Battery Saver Power Relay Circuit Failure	Inspect the battery saver relay, wiring, connectors, and power supply, and replace the relay or repair the circuit if necessary.
B1839	Wiper Rear Motor Circuit Failure	Inspect the rear wiper motor, wiring, connectors, and power supply, and repair or replace the faulty component.
B1840	Wiper Front Power Circuit Failure	Inspect the front wiper power circuit, wiring, connectors, and power supply, and repair or replace the faulty component.
B1841	Wiper Front Power Circuit Open	Check the front wiper power circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1842	Wiper Front Power Circuit Short To Battery	Inspect the front wiper power wiring for an unintended connection to battery voltage, then repair or replace the damaged wiring.
B1843	Wiper Front Power Circuit Short To Ground	Check the front wiper power circuit for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1844	Phone Handset Circuit Failure	Inspect the phone handset, wiring, connectors, and power supply, and repair or replace the faulty component.
B1845	Ignition Tamper Circuit Failure	Inspect the ignition tamper circuit, wiring, connectors, and related switch, and repair or replace the faulty component.
B1846	Ignition Tamper Circuit Open	Check the ignition tamper circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1847	Ignition Tamper Circuit Short To Battery	Inspect the ignition tamper wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1848	Ignition Tamper Circuit Short To Ground	Check the ignition tamper circuit for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1849	Climate Control Temperature Differential Circuit Failure	Inspect the temperature differential sensor, wiring, connectors, and control circuit, and repair or replace the faulty component.
B1850	Climate Control Temperature Differential Circuit Open	Check the temperature differential circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1851	Climate Control Temperature Differential Circuit Short To Battery	Inspect the temperature differential circuit for a short to battery voltage, then repair or replace the damaged wiring.
B1852	Climate Control Temperature Differential Circuit Short To Ground	Check the temperature differential circuit for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1853	Climate Control Air Temperature Internal Sensor Motor Circuit Failure	Inspect the internal air temperature sensor motor, wiring, connectors, and control circuit, and repair or replace the faulty component.
B1854	Climate Control Air Temperature Internal Sensor Motor Circuit Open	Check the sensor motor circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1855	Climate Control Air Temperature Internal Sensor Motor Circuit Short To Battery	Inspect the sensor motor wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1856	Climate Control Air Temperature Internal Sensor Motor Circuit Short To Ground	Check the sensor motor circuit for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1857	Climate Control On/Off Switch Circuit Failure	Inspect the climate control on/off switch, wiring, connectors, and power supply, and repair or replace the faulty component.
B1858	Climate Control A/C Pressure Switch Circuit Failure	Inspect the A/C pressure switch, wiring, connectors, and circuit operation, and repair or replace the faulty component.
B1859	Climate Control A/C Pressure Switch Circuit Open	Check the A/C pressure switch circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1860	Climate Control A/C Pressure Switch Circuit Short To Battery	Inspect the A/C pressure switch wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1861	Climate Control A/C Pressure Switch Circuit Short To Ground	Check the A/C pressure switch circuit for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1862	Climate Control A/C Lock Sensor Failure	Inspect the A/C lock sensor, wiring, connectors, and power supply, and repair or replace the faulty sensor or circuit.
B1863	Ground ECU Circuit Open	Check the ECU ground circuit for broken wires, loose connections, or corrosion, then restore a proper ground connection.
B1864	Battery Power Supply ECU Circuit Failure	Inspect the ECU battery power supply, fuses, wiring, and connectors, and repair or replace the faulty component.
B1865	Battery Power Supply ECU Circuit Open	Check the ECU power supply circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1866	Battery Power Supply ECU Circuit Short To Battery	Inspect the ECU power supply wiring for an abnormal battery connection, then repair or replace the damaged wiring.
B1867	Battery Power Supply ECU Circuit Short To Ground	Check the ECU power supply circuit for a short to ground, then repair or replace the affected wiring.
B1868	Lamp Air Bag Warning Indicator Circuit Failure	Inspect the air bag warning lamp, wiring, connectors, and control circuit, and repair or replace the faulty component.
B1869	Lamp Air Bag Warning Indicator Circuit Open	Check the air bag warning indicator circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1870	Lamp Air Bag Warning Indicator Circuit Short To Battery	Inspect the air bag warning indicator wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1871	Passenger Air Bag Disable Module Fault	Inspect the passenger air bag disable module, wiring, connectors, and power supply, and repair or replace the faulty module.
B1872	Turn Signal / Hazard Power Feed Circuit Short To Battery	Check the turn signal and hazard power feed wiring for an unintended battery connection, then repair or replace the damaged wiring.
B1873	Turn Signal / Hazard Power Feed Circuit Short To Ground	Check the turn signal and hazard power feed wiring for a short to ground, then repair or replace the affected wiring.
B1874	Cellular Phone Handset Not Present	Check the phone handset connection, wiring, and connectors, and reconnect or replace the handset if necessary.
B1875	Turn Signal / Hazard Switch Signal Circuit Failure	Inspect the turn signal/hazard switch, wiring, connectors, and signal circuit, then repair or replace the faulty component.
B1876	Seatbelt Driver Pretension Circuit Failure	Inspect the driver pretensioner wiring, connectors, and circuit for damage, and repair or replace the faulty component.
B1877	Seatbelt Driver Pretensioner Circuit Open	Check the driver pretensioner circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1878	Seatbelt Driver Pretensioner Circuit Short to Battery	Inspect the driver pretensioner wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1879	Seatbelt Driver Pretensioner Circuit Short to Ground	Check the driver pretensioner circuit for a short to ground, then repair or replace the affected wiring.
B1880	Seatbelt Passenger Pretensioner Circuit Failure	Inspect the passenger pretensioner wiring, connectors, and circuit for damage, and repair or replace the faulty component.
B1881	Seatbelt Passenger Pretensioner Circuit Open	Check the passenger pretensioner circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1882	Seatbelt Passenger Pretensioner Circuit Short to Battery	Inspect the passenger pretensioner wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1883	Seatbelt Passenger Pretensioner Circuit Short to Ground	Check the passenger pretensioner circuit for a short to ground, then repair or replace the affected wiring.
B1884	PAD Warning Lamp Inoperative	Check the PAD warning lamp, wiring, connectors, and power supply, then repair or replace the faulty component.
B1885	Seatbelt Driver Pretensioner Circuit Resistance Low on Squib	Check the driver pretensioner circuit for low resistance or a short, then inspect the wiring and connectors for damage.
B1886	Seatbelt Passenger Pretensioner Circuit Resistance Low on Squib	Check the passenger pretensioner circuit for low resistance or a short, then inspect the wiring and connectors for damage.
B1887	Air Bag Driver Circuit Resistance Low or Shorted Together	Inspect the driver airbag circuit for low resistance or a short between wires, and repair the wiring or connectors as required.
B1888	Air Bag Passenger Circuit Resistance Low or Shorted Together	Inspect the passenger airbag circuit for low resistance or a short between wires, and repair the wiring or connectors as required.
B1889	Passenger Airbag Disable Module Sensor Obstructed	Check the passenger airbag disable module sensor for obstruction or incorrect installation, then clear the obstruction and verify operation.
B1890	PAD Warning Lamp Circuit Short to Battery	Inspect the PAD warning lamp wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1891	Air Bag Tone Warning Indicator Circuit Short to Battery	Check the airbag warning indicator wiring for a short to battery voltage, then repair or replace the affected wiring.
B1892	Air Bag Tone Warning Indicator Circuit Failure	Inspect the airbag warning indicator, wiring, connectors, and control circuit, then repair or replace the faulty component.
B1893	GPS Antenna Open Circuit	Check the GPS antenna cable and connectors for an open circuit or loose connection, then repair or replace the antenna or cable.
B1894	Wiper Rear Motor Speed Sense Circuit Failure	Inspect the rear wiper motor speed sensor, wiring, and connectors, then repair or replace the faulty component.
B1895	Driver’s / Passenger’s Door Ajar Output Circuit Failure	Inspect the door ajar switches, wiring, connectors, and output circuit, then repair or replace the faulty component.
B1896	Driver’s / Passenger’s Door Ajar Output Circuit Short to Battery	Check the door ajar output wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1897	Horn Switch Circuit Failure	Inspect the horn switch, wiring, connectors, and control circuit, then repair or replace the faulty component.
B1898	Chime Input #2 Circuit Short to Ground	Check the chime input circuit for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1899	Microphone Input Signal Circuit Open	Check the microphone wiring and connectors for an open circuit or loose connection, then restore continuity or replace the faulty component.
B1900	Driver Side Airbag Fault	Inspect the driver-side airbag wiring, connectors, and module for faults, and repair or replace the defective component.
B1901	Air Bag Crash Sensor #1 Feed/Return Circuit Short To Ground	Check the crash sensor feed/return wiring for a short to ground, then repair or replace the affected wiring.
B1902	Air Bag Crash Sensor #1 Ground Circuit Failure	Inspect the crash sensor ground circuit, wiring, and connectors for poor connections or damage, then restore a proper ground.
B1903	Air Bag Crash Sensor #1 Ground Circuit Short To Battery	Check the crash sensor ground wiring for a short to battery voltage, then repair or replace the affected wiring.
B1904	Air Bag Crash Sensor #2 Feed/Return Circuit Failure	Inspect the crash sensor #2 wiring, connectors, and feed/return circuit, then repair or replace the faulty component.
B1905	Air Bag Crash Sensor #2 Feed/Return Circuit Short To Battery	Check the sensor #2 feed/return wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1906	Air Bag Crash Sensor #2 Feed/Return Circuit Short To Ground	Inspect the sensor #2 feed/return circuit for a short to ground, then repair or replace the affected wiring.
B1907	Air Bag Crash Sensor #2 Ground Circuit Failure	Check the sensor #2 ground wiring, connectors, and ground connection, then repair or restore the circuit as required.
B1908	Air Bag Crash Sensor #2 Ground Circuit Short To Battery	Check the sensor #2 ground circuit for a short to battery voltage, then repair or replace the affected wiring.
B1909	Air Bag Crash Sensor #2 Ground Circuit Short To Ground	Inspect the sensor #2 ground circuit for damaged wiring or an incorrect ground connection, then repair as required.
B1910	Air Bag Diagnostic Monitor Ground Circuit Failure	Inspect the diagnostic monitor ground wiring and connectors, then repair poor connections or damaged wiring.
B1911	Air Bag Diagnostic Monitor Ground Circuit Short To Battery	Check the diagnostic monitor ground circuit for contact with battery voltage, then repair or replace the affected wiring.
B1912	Air Bag Diagnostic Monitor Ground Circuit Short To Ground	Inspect the diagnostic monitor ground circuit for wiring faults or an unintended ground connection, then repair as required.
B1913	Air Bag Driver/Passenger Circuit Short To Ground	Check the driver/passenger airbag wiring for a short to ground, then repair or replace the affected wiring or connectors.
B1914	Air Bag Crash Sensors #1 / #2 Circuit Short To Ground	Inspect the crash sensor #1 and #2 circuits for a short to ground, then repair or replace the damaged wiring.
B1915	Air Bag Driver Circuit Failure	Inspect the driver airbag module, wiring, connectors, and circuit, then repair or replace the faulty component.
B1916	Air Bag Driver Circuit Short To Battery	Check the driver airbag circuit for a short to battery voltage, then repair or replace the affected wiring.
B1917	Air Bag Memory Clear Circuit Failure	Inspect the airbag memory clear circuit, wiring, connectors, and control module, then repair or replace the faulty component.
B1918	Air Bag Memory Clear Circuit Open	Check the memory clear circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1919	Air Bag Memory Clear Circuit Short To Battery	Inspect the memory clear circuit for a short to battery voltage, then repair or replace the damaged wiring.
B1920	Air Bag Passenger Circuit Failure	Inspect the passenger airbag module, wiring, connectors, and circuit, then repair or replace the faulty component.
B1921	Air Bag Diagnostic Monitor Ground Circuit Open	Check the diagnostic monitor ground circuit for broken wires or loose connections, then restore proper continuity and grounding.
B1922	Air Bag Seeing Sensor Output Circuit Short To Battery	Inspect the sensor output wiring for a short to battery voltage, then repair or replace the affected wiring.
B1923	Air Bag Memory Clear Circuit Short To Ground	Check the memory clear circuit for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1924	Air Bag Internal Diagnostic Monitor Fault or System Disarm Fault	Perform an airbag system diagnostic check and inspect the diagnostic monitor, wiring, and connectors, replacing the faulty component if necessary.
B1925	Air Bag Passenger Circuit Short To Battery	Check the passenger airbag circuit for a short to battery voltage, then repair or replace the affected wiring.
B1926	Air Bag Passenger Pressure Switch Circuit Failure	Inspect the passenger airbag pressure switch, wiring, connectors, and circuit, then repair or replace the faulty component.
B1927	Passenger Side Airbag Fault	Inspect the passenger-side airbag module, wiring, and connectors, then repair or replace the defective component.
B1928	Air Bag Safing Sensor Output Circuit Failure	Inspect the safing sensor, output wiring, connectors, and power supply, then repair or replace the faulty component.
B1929	Air Bag Safing Sensor Output Circuit Open	Check the safing sensor output circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1930	Air Bag Safing Sensor Output Circuit Short To Ground	Inspect the safing sensor output wiring for a short to ground, then repair or replace the affected wiring.
B1931	Air Bag Crash Sensor #1 Feed/Return Circuit Failure	Inspect crash sensor #1 wiring, connectors, and feed/return circuit, then repair or replace the faulty component.
B1932	Air Bag Driver Circuit Open	Check the driver airbag circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1933	Air Bag Passenger Circuit Open	Check the passenger airbag wiring and connectors for an open circuit, then restore continuity and secure the connections.
B1934	Air Bag Driver Inflator Circuit Resistance Low on Squib	Check the driver inflator circuit for low resistance or a short, then inspect the wiring and connectors for damage.
B1935	Air Bag Passenger Inflator Circuit Resistance Low on Squib	Check the passenger inflator circuit for low resistance or a short, then inspect the wiring and connectors for damage.
B1936	Air Bag Driver Circuit Short To Ground	Inspect the driver airbag circuit for a short to ground, then repair or replace the affected wiring or connectors.
B1937	Air Bag Passenger Pressure Switch Circuit Open	Check the passenger pressure switch circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B1938	Air Bag Passenger Circuit Short To Ground	Check the passenger airbag circuit for a short to ground, then repair or replace the affected wiring.
B1939	Air Bag Passenger Pressure Switch Circuit Short To Ground	Inspect the pressure switch circuit for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1941	Air Bag Crash Sensor #1 Feed/Return Circuit Open	Check crash sensor #1 feed/return wiring and connectors for an open circuit, then restore continuity and secure the connections.
B1942	Air Bag Crash Sensor #2 Feed/Return Circuit Open	Check crash sensor #2 feed/return wiring and connectors for an open circuit, then restore continuity and secure the connections.
B1943	Air Bag Crash Sensor #1 Ground Circuit Short To Ground	Inspect the crash sensor #1 ground circuit for wiring faults or an unintended ground connection, then repair as required.
B1944	Air Bag Crash Sensor #1 Ground Circuit Open	Check the crash sensor #1 ground wiring and connectors for an open circuit, then restore a proper ground connection.
B1945	Air Bag Crash Sensor #2 Ground Circuit Open	Check the crash sensor #2 ground wiring and connectors for an open circuit, then restore a proper ground connection.
B1946	Climate Control A/C Post Evaporator Sensor Circuit Failure	Inspect the post-evaporator temperature sensor, wiring, connectors, and circuit, then repair or replace the faulty component.
B1947	Climate Control A/C Post Evaporator Sensor Circuit Short To Ground	Check the post-evaporator sensor circuit for a short to ground or damaged insulation, then repair the affected wiring.
B1948	Climate Control Water Temperature Sensor Circuit Failure	Inspect the water temperature sensor, wiring, connectors, and circuit, then repair or replace the faulty component.
B1949	Climate Control Water Temperature Sensor Circuit Short To Ground	Check the water temperature sensor circuit for a short to ground, then repair or replace the affected wiring.
B1950	Seat Rear Up/Down Potentiometer Feedback Circuit Failure	Inspect the rear seat position potentiometer, wiring, connectors, and feedback circuit, then repair or replace the faulty component.
B1951	Seat Rear Up/Down Potentiometer Feedback Circuit Open	Check the rear seat potentiometer feedback circuit for broken wires or loose connectors, then restore continuity.
B1952	Seat Rear Up/Down Potentiometer Feedback Circuit Short To Battery	Inspect the rear seat potentiometer feedback wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1953	Seat Rear Up/Down Potentiometer Feedback Circuit Short To Ground	Check the rear seat potentiometer feedback circuit for a short to ground, then repair or replace the affected wiring.
B1954	Seat Front Up/Down Potentiometer Feedback Circuit Failure	Inspect the front seat position potentiometer, wiring, connectors, and feedback circuit, then repair or replace the faulty component.
B1955	Seat Front Up/Down Potentiometer Feedback Circuit Open	Check the front seat potentiometer feedback circuit for broken wires or loose connectors, then restore continuity.
B1956	Seat Front Up/Down Potentiometer Feedback Circuit Short To Battery	Inspect the front seat potentiometer feedback wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1957	Seat Front Up/Down Potentiometer Feedback Circuit Short To Ground	Check the front seat potentiometer feedback circuit for a short to ground, then repair or replace the affected wiring.
B1958	Seat Recline Forward/Backward Potentiometer Feedback Circuit Failure	Inspect the seat recline potentiometer, wiring, connectors, and feedback circuit, then repair or replace the faulty component.
B1959	Seat Recline Forward/Backward Potentiometer Feedback Circuit Open	Check the seat recline potentiometer feedback circuit for broken wires or loose connectors, then restore continuity.
B1960	Seat Recline Forward/Backward Potentiometer Feedback Circuit Short To Battery	Inspect the seat recline feedback wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1961	Seat Recline Forward/Backward Potentiometer Feedback Circuit Short To Ground	Check the seat recline feedback circuit for a short to ground, then repair or replace the affected wiring.
B1962	Seat Horizontal Forward/Rearward Potentiometer Feedback Circuit Failure	Inspect the seat horizontal position potentiometer, wiring, connectors, and feedback circuit, then repair or replace the faulty component.
B1963	Seat Horizontal Forward/Rearward Potentiometer Feedback Circuit Open	Check the seat horizontal potentiometer feedback circuit for broken wires or loose connectors, then restore continuity.
B1964	Seat Horizontal Forward/Rearward Potentiometer Feedback Circuit Short To Battery	Inspect the seat potentiometer wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1965	Seat Horizontal Forward/Rearward Potentiometer Feedback Circuit Short To Ground	Check the seat potentiometer feedback circuit for a short to ground, then repair or replace the affected wiring.
B1966	A/C Post Heater Sensor Circuit Failure	Inspect the A/C post-heater sensor, wiring, connectors, and circuit, then repair or replace the faulty component.
B1967	A/C Post Heater Sensor Circuit Short To Ground	Check the post-heater sensor wiring for a short to ground or damaged insulation, then repair or replace the affected wiring.
B1968	A/C Water Pump Detection Circuit Failure	Inspect the A/C water pump, wiring, connectors, and detection circuit, then repair or replace the faulty component.
B1969	A/C Clutch Magnetic Control Circuit Failure	Inspect the A/C clutch, magnetic control circuit, wiring, and connectors, then repair or replace the faulty component.
B1970	Passenger Seatback Forward Switch Circuit Short to Ground	Check the seatback forward switch wiring for a short to ground, then repair or replace the affected wiring.
B1971	Passenger Seatback Rearward Switch Circuit Short to Ground	Check the seatback rearward switch wiring for a short to ground, then repair or replace the affected wiring.
B1972	Passenger Rear Seat up Switch Circuit Short to Battery	Inspect the rear seat up switch wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1973	Passenger Rear Seat down Switch Circuit Short to Battery	Inspect the rear seat down switch wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1974	Passenger’s Seat Recline Forward Switch Circuit Short to Battery	Check the seat recline forward switch circuit for a short to battery voltage, then repair or replace the affected wiring.
B1975	Passenger’s Seat Recline Back Switch Circuit Short to Battery	Check the seat recline back switch circuit for a short to battery voltage, then repair or replace the affected wiring.
B1976	Passenger’s Seat Forward Switch Circuit Short to Battery	Inspect the seat forward switch wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1977	Passenger’s Front Seat up Switch Circuit Short to Battery	Check the front seat up switch circuit for a short to battery voltage, then repair or replace the affected wiring.
B1978	Passenger’s Front Seat down Switch Circuit Short to Battery	Check the front seat down switch circuit for a short to battery voltage, then repair or replace the affected wiring.
B1979	Passenger Seat Rearward Switch Circuit Short to Battery	Inspect the seat rearward switch wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1980	Bulb Outage Condition Detected	Inspect the vehicle lighting system, bulbs, wiring, and connectors, then replace failed bulbs or repair damaged connections.
B1981	Memory off Switch Circuit Short to Battery	Check the memory off switch circuit for a short to battery voltage, then repair or replace the affected wiring.
B1982	Driver’s Door Unlock Relay Circuit Failure	Inspect the door unlock relay, wiring, connectors, and power supply, then repair or replace the faulty component.
B1983	Driver’s Door Unlock Relay Circuit Short to Battery	Check the door unlock relay wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1984	Seat Switch Lumbar Inflate Circuit Failure	Inspect the lumbar inflate switch, wiring, connectors, and control circuit, then repair or replace the faulty component.
B1985	Seat Switch Lumbar Deflate Circuit Failure	Inspect the lumbar deflate switch, wiring, connectors, and control circuit, then repair or replace the faulty component.
B1986	Driver’s Seat Seatback Auto glides Rearward Switch Circuit Failure	Inspect the seatback auto-glide switch, wiring, connectors, and control circuit, then repair or replace the faulty component.
B1987	Pedal Forward / Rearward Motor Stalled	Inspect the pedal motor and mechanism for obstruction or mechanical binding, then repair or replace the motor or affected component.
B1988	Pedal Position Forward Switch Circuit Short to Battery	Check the pedal forward switch wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1989	Pedal Position Rearward Switch Circuit Short to Battery	Check the pedal rearward switch wiring for a short to battery voltage, then repair or replace the damaged wiring.
B1990	Pedal Forward / Rearward Potentiometer Feedback Circuit Failure	Inspect the pedal position potentiometer, wiring, connectors, and feedback circuit, then repair or replace the faulty component.
B1991	Pedal Forward / Rearward Potentiometer Feedback Circuit Short to Battery	Check the pedal potentiometer feedback wiring for a short to battery voltage, then repair or replace the affected wiring.
B1992	Driver Side, Side mount Airbag Circuit Short to V batt	Inspect the driver side airbag wiring for a short to battery voltage, then repair or replace the affected wiring or connectors.
B1993	Driver Side, Side mount Airbag Circuit Short to Ground	Check the driver side airbag circuit for a short to ground, then repair or replace the affected wiring or connectors.
B1994	Driver Side, Side mount Airbag Circuit Open	Check the driver side airbag wiring and connectors for an open circuit, then restore continuity and secure the connections.
B1995	Driver Side, Side mount Airbag Low resistance on Squib	Check the driver side airbag circuit for low resistance or a short, then inspect the wiring and connectors for damage.
B1996	Passenger Side, Side mount Airbag Circuit Short to V batt	Inspect the passenger side airbag wiring for a short to battery voltage, then repair or replace the affected wiring.
B1997	Passenger Side, Side mount Airbag Circuit Short to Ground	Check the passenger side airbag circuit for a short to ground, then repair or replace the affected wiring.
B1998	Passenger Side, Side mount Airbag Circuit Open	Check the passenger side airbag wiring and connectors for an open circuit, then restore continuity and secure the connections.
B1999	Passenger Side, Side mount Airbag Low resistance on Squib	Check the passenger side airbag circuit for low resistance or a short, then inspect the wiring and connectors for damage.
B2100	Door Driver Key Cylinder Switch Failure	Inspect the driver door key cylinder switch, wiring, and connectors, then repair or replace the faulty component.
B2101	Head Rest Switch Circuit Failure	Inspect the headrest switch, wiring, connectors, and circuit, then repair or replace the faulty component.
B2102	Antenna Circuit Short to Ground	Check the antenna wiring for a short to ground or damaged insulation, then repair or replace the affected wiring.
B2103	Antenna Not Connected	Check the antenna connector and wiring for a loose or disconnected connection, then reconnect or replace the damaged component.
B2104	Door Passenger Key Cylinder Switch Failure	Inspect the passenger door key cylinder switch, wiring, and connectors, then repair or replace the faulty component.
B2105	Throttle Position Input Out of Range Low	Check the throttle position sensor, wiring, connectors, and reference voltage, then repair or replace the faulty component.
B2106	Throttle Position Input Out of Range High	Check the throttle position sensor, wiring, connectors, and signal voltage, then repair or replace the faulty component.
B2107	Front Wiper Motor Relay Circuit Short to V batt	Inspect the front wiper relay wiring for a short to battery voltage, then repair or replace the damaged wiring.
B2108	Trunk Key Cylinder Switch Failure	Inspect the trunk key cylinder switch, wiring, and connectors, then repair or replace the faulty component.
B2109	Heated Wind Shield Relay Short to V batt	Check the heated windshield relay circuit for a short to battery voltage, then repair or replace the affected wiring.
B2110	Front Wiper Motor Relay Circuit Open (changed from Failure 2/6/97)	Check the front wiper relay circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B2111	All Door Lock Input Short to Ground	Inspect the door lock input wiring for a short to ground, then repair or replace the affected wiring.
B2112	Door Driver Set Switch Stuck Failure	Check the driver door set switch for sticking or mechanical damage, then repair or replace the switch if necessary.
B2113	Heated Windshield Input Short to Ground	Check the heated windshield input circuit for a short to ground, then repair or replace the affected wiring.
B2114	Front Washer Input Short to Ground	Inspect the front washer input wiring for a short to ground, then repair or replace the affected wiring.
B2115	Rear Washer Input Short to Ground	Inspect the rear washer input wiring for a short to ground, then repair or replace the affected wiring.
B2116	Door Driver Reset Switch Stuck Failure	Check the driver door reset switch for sticking or mechanical damage, then repair or replace the switch if necessary.
B2117	Driver Side, Side mount Airbag Low capacitance on Squib	Inspect the driver side airbag circuit, wiring, and connectors for incorrect capacitance or damaged connections, then repair as required.
B2118	Passenger Side, Side mount Airbag Low capacitance on Squib	Inspect the passenger side airbag circuit, wiring, and connectors for incorrect capacitance or damaged connections, then repair as required.
B2119	Compressor Failure	Inspect the compressor, power supply, wiring, connectors, and control circuit, then repair or replace the faulty component.
B2120	Door Passenger Set Switch Stuck Failure	Check the passenger door set switch for sticking or mechanical damage, then repair or replace the switch if necessary.
B2122	Driver Side Satellite Communication Circuit Short to Ground	Check the driver side satellite communication wiring for a short to ground, then repair or replace the affected wiring.
B2123	Passenger Side Satellite Communication Circuit Short to Ground	Check the passenger side satellite communication wiring for a short to ground, then repair or replace the affected wiring.
B2124	Door Passenger Reset Switch Stuck Failure	Check the passenger door reset switch for sticking or mechanical damage, then repair or replace the switch if necessary.
B2128	Central Lock Motor Failure	Inspect the central locking motor, wiring, connectors, and power supply, then repair or replace the faulty component.
B2129	Central Lock Feedback Failure	Check the central lock feedback signal, wiring, connectors, and motor operation, then repair or replace the faulty component.
B2130	Double Lock Timeout Failure	Inspect the double-lock motor, mechanism, wiring, and feedback signal for binding or delayed operation, then repair as required.
B2131	Double Lock Feedback Failure	Check the double-lock feedback circuit, wiring, connectors, and switch operation, then repair or replace the faulty component.
B2132	Dimmer switch Circuit Short to Gnd	Check the dimmer switch wiring for a short to ground or damaged insulation, then repair or replace the affected wiring.
B2133	Brake Motor Warning lamp Circuit Failure	Inspect the brake motor warning lamp, wiring, connectors, and control circuit, then repair or replace the faulty component.
B2134	Brake Motor Warning lamp Circuit Short to V batt	Check the warning lamp circuit for a short to battery voltage, then repair or replace the affected wiring.
B2135	Park Brake Applied Warning Lamp Circuit Failure	Inspect the parking brake warning lamp, wiring, connectors, and control circuit, then repair or replace the faulty component.
B2136	Park Brake Applied Warning Lamp Circuit Short To Battery	Check the parking brake warning lamp circuit for a short to battery voltage, then repair or replace the affected wiring.
B2139	Data Mismatch (receive data does not match what was expected)	Check the communication wiring, connectors, module configuration, and received data, then correct the configuration or communication fault.
B2141	NVM Configuration Failure	Check the module configuration and NVM data, then reconfigure or replace the module if the memory cannot be restored.
B2142	NVM TIC Failure	Inspect the NVM and module communication, then reprogram or replace the module if the fault persists.
B2143	NVM Memory Failure	Check the module memory for errors, then reprogram or replace the module if the memory is defective.
B2144	NVM Alarm Data Failure	Check the stored alarm data and NVM memory, then reconfigure or replace the module if necessary.
B2145	NVM RF HR Failure	Check the NVM data and RF module communication, then reprogram or replace the faulty module if required.
B2146	Seat Recline Motor Position Out of Range	Inspect the seat recline motor, position sensor, wiring, and mechanical mechanism, then repair or recalibrate the system.
B2148	PWM Input Circuit Failure	Check the PWM input signal, wiring, connectors, and control module for proper operation, then repair the affected circuit.
B2149	Seat Front Vertical Motor Position Out of Range	Inspect the front vertical seat motor, position sensor, wiring, and mechanism, then repair or recalibrate the seat position.
B2150	Power Supply #1 Circuit Short to Ground	Check power supply #1 wiring for a short to ground or damaged insulation, then repair or replace the affected wiring.
B2151	Power Supply #2 Circuit Short to Ground	Check power supply #2 wiring for a short to ground or damaged insulation, then repair or replace the affected wiring.
B2152	Seat Rear Vertical Motor Position Out of Range	Inspect the rear vertical seat motor, position sensor, wiring, and mechanism, then repair or recalibrate the seat position.
B2153	Rear Echo Sensor Circuit Failure	Inspect the rear echo sensor, wiring, connectors, and power supply, then repair or replace the faulty component.
B2154	Front Echo Sensor Circuit Failure	Inspect the front echo sensor, wiring, connectors, and power supply, then repair or replace the faulty component.
B2155	Seat Horizontal Motor Position Out of Range	Inspect the horizontal seat motor, position sensor, wiring, and mechanical mechanism, then repair or recalibrate the seat position.
B2156	Rear Doppler Sensor Circuit Failure	Inspect the rear Doppler sensor, wiring, connectors, and power supply, then repair or replace the faulty component.
B2157	Front Doppler Sensor Circuit Failure	Inspect the front Doppler sensor, wiring, connectors, and power supply, then repair or replace the faulty component.
B2158	Seat Recline Motor Memory Position Out of Range	Check the seat recline motor, position sensor, and memory settings, then recalibrate the position or repair the faulty component.
B2159	Memory #1 output Short to Ground	Check the memory #1 output wiring for a short to ground or damaged insulation, then repair or replace the affected wiring.
B2160	Memory #1 output Short to V Batt	Check the memory #1 output wiring for a short to battery voltage, then repair or replace the affected wiring.
B2161	Seat Front Vertical Motor Memory Position Out of Range	Inspect the front vertical seat motor, position sensor, and memory settings, then recalibrate the position or repair the faulty component.
B2162	Data Mismatch #2 (receive data does not match what was expected)	Check the communication wiring, connectors, and module data, then correct the configuration or communication fault.
B2163	Clutch Position Fault	Inspect the clutch position sensor, wiring, connectors, and mechanical operation, then repair or recalibrate the system.
B2164	Seat Rear Vertical Motor Memory Position Out of Range	Check the rear vertical seat motor, position sensor, and memory settings, then recalibrate or repair the system.
B2165	Gear shift position Fault	Inspect the gear shift position sensor, wiring, connectors, and shift mechanism, then repair or recalibrate the system.
B2166	Gear select position Fault	Check the gear select position sensor, wiring, connectors, and selector mechanism, then repair or recalibrate the system.
B2167	Seat Horizontal Motor Memory Position Out of Range	Inspect the horizontal seat motor, position sensor, and memory settings, then recalibrate or repair the system.
B2168	Unable to confirm Unlock Condition	Check the door unlock switches, actuators, feedback signals, wiring, and connectors, then repair the faulty component.
B2169	Unable to confirm locks Condition	Inspect the door lock actuators, switches, feedback signals, wiring, and connectors, then repair or replace the faulty component.
B2170	Steering Column Lock Switch Circuit Failure	Check the steering column lock switch, wiring, connectors, and power supply, then repair or replace the faulty component.
B2172	Inertia Switch input Circuit Open	Check the inertia switch wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2174	Window Driver Rear Remote up Switch Short to Battery	Inspect the driver rear window up switch wiring for a short to battery voltage, then repair or replace the affected wiring.
B2175	A/C Request Signal Circuit Short to Ground	Check the A/C request signal wiring for a short to ground, then repair or replace the affected wiring.
B2176	Overdrive switch circuit short to V batt	Inspect the overdrive switch wiring for a short to battery voltage, then repair or replace the damaged wiring.
B2177	Interior Scanning Sensor Circuit Failure	Inspect the interior scanning sensor, wiring, connectors, and power supply, then repair or replace the faulty component.
B2178	Window Driver Rear Remote down Switch Short to Battery	Check the driver rear window down switch wiring for a short to battery voltage, then repair or replace the affected wiring.
B2179	Front Wiper Select Switch “A” Short to Ground	Inspect the front wiper switch “A” wiring for a short to ground, then repair or replace the affected wiring.
B2180	Front Wiper Select Switch “B” Short to Ground	Inspect the front wiper switch “B” wiring for a short to ground, then repair or replace the affected wiring.
B2181	Front Wiper Select Switch “C” Short to Ground	Inspect the front wiper switch “C” wiring for a short to ground, then repair or replace the affected wiring.
B2182	Window Passenger Front Remote Up Switch Short to Battery	Check the passenger front window up switch wiring for a short to battery voltage, then repair or replace the affected wiring.
B2183	Front Wiper Select Switch “H” Short to Ground	Inspect the front wiper switch “H” wiring for a short to ground, then repair or replace the affected wiring.
B2184	Front Wiper Select Switch “W” Short to Ground	Inspect the front wiper switch “W” wiring for a short to ground, then repair or replace the affected wiring.
B2185	Rear Wiper Select Switch “D” Short to Ground	Inspect the rear wiper switch “D” wiring for a short to ground, then repair or replace the affected wiring.
B2186	Window Passenger Front Remote Down Switch Short to Battery	Check the passenger front window down switch wiring for a short to battery voltage, then repair or replace the affected wiring.
B2187	Rear Wiper Select Switch “B” Short to Ground	Inspect the rear wiper switch “B” wiring for a short to ground, then repair or replace the affected wiring.
B2188	Rear Wiper Select Switch “E” Short to Ground	Inspect the rear wiper switch “E” wiring for a short to ground, then repair or replace the affected wiring.
B2190	Window Passenger Rear Remote up Switch Short to Battery	Check the passenger rear window up switch wiring for a short to battery voltage, then repair or replace the affected wiring.
B2194	Window Passenger Rear Remote down Switch Short to Battery	Check the passenger rear window down switch wiring for a short to battery voltage, then repair or replace the affected wiring.
B2195	Driver Window Up / Down Power Circuit Short to Ground	Inspect the driver window power wiring for a short to ground, then repair or replace the affected wiring.
B2196	Passenger Window Up / Down Power Circuit Short to Ground	Inspect the passenger window power wiring for a short to ground, then repair or replace the affected wiring.
B2197	TV Module Error	Check the TV module power supply, wiring, connectors, and communication signals, then repair or replace the faulty module.
B2198	Traffic Master Module Error	Check the Traffic Master module power supply, wiring, connectors, and communication signals, then repair or replace the faulty module.
B2199	VICS Module Error	Inspect the VICS module, power supply, wiring, connectors, and communication signals, then repair or replace the faulty module.
B2200	No Communication to TV Module (No Fitting of TV)	Check the TV module installation, power supply, wiring, and communication connections, then repair or reconnect the module.
B2201	No Communication with Traffic Master Module	Check the Traffic Master module power supply, wiring, connectors, and communication lines, then repair the communication circuit.
B2202	No Communication to VICS Module (No Fitting of VICS)	Check the VICS module installation, power supply, wiring, and communication connections, then repair or reconnect the module.
B2203	CD-ROM Error	Inspect the CD-ROM, drive, and connections, then clean, replace, or repair the defective component.
B2204	GPS Antenna Connection Open or Short	Check the GPS antenna cable and connectors for an open circuit or short, then repair or replace the damaged cable or antenna.
B2205	GPS Receiver Error	Inspect the GPS receiver, antenna connection, power supply, and wiring, then repair or replace the faulty component.
B2206	Gyroscope Error	Check the gyroscope sensor, wiring, connectors, and calibration, then recalibrate or replace the faulty sensor.
B2207	ECU ROM Checksum Error	Perform an ECU diagnostic and software verification, then reprogram or replace the ECU if the ROM checksum remains incorrect.
B2208	Communication Link to Display and Switch Module Error	Check the communication wiring, connectors, power supply, and module connections, then repair the communication circuit or replace the faulty module.
B2209	Interior Lamp Override Switch Open Circuit	Check the interior lamp override switch wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2210	Interior Lamp Override Switch Short to Ground	Inspect the override switch wiring for a short to ground, then repair or replace the affected wiring.
B2211	Low Coolant Lamp Output Circuit Short to Battery	Check the low coolant warning lamp wiring for a short to battery voltage, then repair or replace the damaged wiring.
B2214	Window Passenger Front up Switch Short to Battery	Inspect the passenger front window up switch wiring for a short to battery voltage, then repair or replace the affected wiring.
B2215	Window Passenger Front down Switch Short to Battery	Inspect the passenger front window down switch wiring for a short to battery voltage, then repair or replace the affected wiring.
B2219	Window Driver Front Current Feedback Exceeded	Check the driver front window motor and mechanism for binding or excessive load, then repair the mechanism or replace the motor if necessary.
B2220	Window Driver Rear Current Feedback Exceeded	Check the driver rear window motor and mechanism for binding or excessive load, then repair the mechanism or replace the motor if necessary.
B2221	Window Passenger Front Current Feedback Exceeded	Check the passenger front window motor and mechanism for binding or excessive load, then repair the mechanism or replace the motor if necessary.
B2222	Window Passenger Rear Current Feedback Exceeded	Check the passenger rear window motor and mechanism for binding or excessive load, then repair the mechanism or replace the motor if necessary.
B2223	Mirror Driver Drive Circuit Failure	Inspect the driver mirror motor, wiring, connectors, and power supply, then repair or replace the faulty component.
B2224	Mirror Passenger Drive Circuit Failure	Inspect the passenger mirror motor, wiring, connectors, and power supply, then repair or replace the faulty component.
B2225	Front Crash Sensor Mount Fault	Inspect the front crash sensor mounting position and fasteners, then correctly secure or reposition the sensor as required.
B2226	Front Crash Sensor Internal Fault	Inspect the front crash sensor, wiring, and connectors, then replace the sensor if an internal fault is confirmed.
B2227	Front Crash Sensor Driver Communications Fault	Check the front crash sensor communication wiring, connectors, and power supply, then repair the circuit or replace the faulty sensor.
B2228	Air Bag Driver Circuit Short to Ground Loop #2	Check driver airbag loop #2 wiring and connectors for a short to ground, then repair or replace the affected circuit.
B2229	Air Bag Passenger Circuit Short to Ground Loop #2	Check passenger airbag loop #2 wiring and connectors for a short to ground, then repair or replace the affected circuit.
B2230	Air Bag Driver Circuit Short to Battery Loop #2	Inspect driver airbag loop #2 wiring for a short to battery voltage, then repair or replace the affected wiring.
B2231	Air Bag Passenger Circuit Short to Battery Loop #2	Inspect passenger airbag loop #2 wiring for a short to battery voltage, then repair or replace the affected wiring.
B2232	Air Bag Driver Circuit Open Loop #2	Check driver airbag loop #2 wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2233	Air Bag passenger Circuit Open Loop #2	Check the passenger airbag loop #2 wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2234	Air Bag Driver Inflator Circuit Resistance Low on Squib Loop #2	Check the driver inflator loop #2 circuit for low resistance or a short, then inspect the wiring and connectors for damage.
B2235	Air Bag Passenger Inflator Circuit	Inspect the passenger airbag inflator wiring, connectors, and circuit for faults, then repair or replace the defective component.
B2236	Weak or Defected Electric Vehicle Battery Module Fault	Check the EV battery module voltage, connections, and diagnostic data, then repair or replace the defective battery module.
B2237	Vehicle Signal indicating Park While VSS Present	Check the park position signal, vehicle speed sensor signal, wiring, and connectors, then repair or recalibrate the affected system.
B2238	Power Cable for Power Sliding Door Broken	Inspect the power sliding door cable and connectors for damage or breakage, then repair or replace the damaged cable.
B2239	Rear Cargo Door Set Switch Stuck (Short to Ground)	Check the rear cargo door set switch and wiring for a short to ground, then repair or replace the faulty switch or wiring.
B2240	Rear Cargo Door Reset Switch Stuck (Short to Ground)	Check the rear cargo door reset switch and wiring for a short to ground, then repair or replace the faulty switch or wiring.
B2241	Rear Cargo Door Lock Circuit Short to Ground	Inspect the rear cargo door lock wiring for a short to ground, then repair or replace the affected wiring.
B2242	Rear Cargo Door Unlock Circuit Open	Check the rear cargo door unlock circuit for broken wires or loose connectors, then restore continuity and secure the connections.
B2243	Driver Rear Door Ajar Circuit Open	Check the driver rear door ajar switch, wiring, and connectors for an open circuit, then restore continuity and secure the connections.
B2244	Driver Sliding Door Ajar Circuit Short to GND	Inspect the driver sliding door ajar circuit for a short to ground, then repair or replace the affected wiring.
B2245	Passenger Rear Door Ajar Circuit Open	Check the passenger rear door ajar switch, wiring, and connectors for an open circuit, then restore continuity and secure the connections.
B2246	Passenger Sliding Door Ajar Circuit Short to GND	Inspect the passenger sliding door ajar circuit for a short to ground, then repair or replace the affected wiring.
B2247	EV Battery Pack Temperature Fault	Check the battery temperature sensors, wiring, connectors, and temperature readings, then repair or replace the faulty component.
B2248	Heated Windshield Relay Coil Circuit Failure	Inspect the heated windshield relay coil, wiring, connectors, and power supply, then repair or replace the faulty component.
B2249	Head Lamp Relay Coil Short to Battery	Check the headlamp relay coil wiring for a short to battery voltage, then repair or replace the affected wiring.
B2250	All Doors Unlock Relay Circuit Failure	Inspect the door unlock relay, wiring, connectors, and power supply, then repair or replace the faulty component.
B2251	Park lamp Output Relay Driver Circuit Failure	Inspect the park lamp relay driver circuit, wiring, connectors, and control module, then repair or replace the faulty component.
B2252	Park lamp Output Relay Driver Short to Battery	Check the park lamp relay driver wiring for a short to battery voltage, then repair or replace the affected wiring.
B2300	Seat Driver Memory Position Error	Check the driver seat position sensors, motors, wiring, and memory settings, then recalibrate or repair the system.
B2301	Seat Passenger Memory Position Error	Check the passenger seat position sensors, motors, wiring, and memory settings, then recalibrate or repair the system.
B2302	Seat Headrest Feedback Potentiometer Circuit Failure	Inspect the headrest feedback potentiometer, wiring, connectors, and signal circuit, then repair or replace the faulty component.
B2303	Seat Headrest Feedback Potentiometer Circuit Open	Check the headrest potentiometer wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2304	Seat Headrest Feedback Potentiometer Circuit Short to Battery	Inspect the headrest potentiometer wiring for a short to battery voltage, then repair or replace the damaged wiring.
B2305	Seat Headrest Feedback Potentiometer Circuit Short to Ground	Check the headrest potentiometer circuit for a short to ground, then repair or replace the affected wiring.
B2306	Seat Headrest Motor Stalled	Check the headrest motor and mechanism for obstruction or binding, then repair the mechanism or replace the motor if necessary.
B2310	Mirror Driver Memory Position Error	Check the driver mirror position sensor, motor, wiring, and memory settings, then recalibrate or repair the system.
B2311	Mirror Passenger Memory Position Error	Check the passenger mirror position sensor, motor, wiring, and memory settings, then recalibrate or repair the system.
B2312	Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure	Inspect the passenger mirror horizontal potentiometer, wiring, connectors, and feedback signal, then repair or replace the faulty component.
B2313	Mirror Passenger Horizontal Feedback Potentiometer Circuit Open	Check the passenger mirror horizontal potentiometer wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2314	Mirror Passenger Horizontal Feedback Potentiometer Circuit Short to Battery	Inspect the passenger mirror horizontal potentiometer wiring for a short to battery voltage, then repair or replace the affected wiring.
B2315	Mirror Passenger Horizontal Feedback Potentiometer Circuit Short to Ground	Check the passenger mirror horizontal potentiometer circuit for a short to ground, then repair or replace the affected wiring.
B2316	Mirror Passenger Vertical Feedback Potentiometer Circuit Failure	Inspect the passenger mirror vertical potentiometer, wiring, connectors, and feedback signal, then repair or replace the faulty component.
B2317	Mirror Passenger Vertical Feedback Potentiometer Circuit Open	Check the passenger mirror vertical potentiometer wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2318	Mirror Passenger Vertical Feedback Potentiometer Circuit Short to Battery	Inspect the passenger mirror vertical potentiometer wiring for a short to battery voltage, then repair or replace the affected wiring.
B2319	Mirror Passenger Vertical Feedback Potentiometer Circuit Short to Ground	Check the passenger mirror vertical potentiometer circuit for a short to ground, then repair or replace the affected wiring.
B2320	Mirror Driver Horizontal Feedback Potentiometer Circuit Failure	Inspect the driver mirror horizontal potentiometer, wiring, connectors, and feedback signal, then repair or replace the faulty component.
B2321	Mirror Driver Horizontal Feedback Potentiometer Circuit Open	Check the driver mirror horizontal potentiometer wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2322	Mirror Driver Horizontal Feedback Potentiometer Circuit Short to Battery	Inspect the driver mirror horizontal potentiometer wiring for a short to battery voltage, then repair or replace the affected wiring.
B2323	Mirror Driver Horizontal Feedback Potentiometer Circuit Short to Ground	Check the driver mirror horizontal potentiometer circuit for a short to ground, then repair or replace the affected wiring.
B2324	Mirror Driver Vertical Feedback Potentiometer Circuit Failure	Inspect the driver mirror vertical potentiometer, wiring, connectors, and feedback signal, then repair or replace the faulty component.
B2325	Mirror Driver Vertical Feedback Potentiometer Circuit Open	Check the driver mirror vertical potentiometer wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2326	Mirror Driver Vertical Feedback Potentiometer Circuit Short to Battery	Inspect the driver mirror vertical potentiometer wiring for a short to battery voltage, then repair or replace the affected wiring.
B2327	Mirror Driver Vertical Feedback Potentiometer Circuit Short to Ground	Check the driver mirror vertical potentiometer circuit for a short to ground, then repair or replace the affected wiring.
B2328	Column Reach Feedback Potentiometer Circuit Failure	Inspect the steering column reach potentiometer, wiring, connectors, and feedback signal, then repair or replace the faulty component.
B2329	Column Reach Feedback Potentiometer Circuit Open	Check the column reach potentiometer wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2330	Column Reach Feedback Potentiometer Circuit Short to Battery	Inspect the column reach potentiometer wiring for a short to battery voltage, then repair or replace the affected wiring.
B2331	Column Reach Feedback Potentiometer Circuit Short to Ground	Check the column reach potentiometer circuit for a short to ground, then repair or replace the affected wiring.
B2332	Column Tilt Feedback Potentiometer Circuit Failure	Inspect the steering column tilt potentiometer, wiring, connectors, and feedback signal, then repair or replace the faulty component.
B2333	Column Tilt Feedback Potentiometer Circuit Open	Check the column tilt potentiometer wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2334	Column Tilt Feedback Potentiometer Circuit Short to Battery	Inspect the column tilt potentiometer wiring for a short to battery voltage, then repair or replace the affected wiring.
B2335	Column Tilt Feedback Potentiometer Circuit Short to Ground	Check the column tilt potentiometer circuit for a short to ground, then repair or replace the affected wiring.
B2336	Mirror Switch Assembly Circuit Failure	Inspect the mirror switch assembly, wiring, connectors, and power supply, then repair or replace the faulty component.
B2337	Mirror Switch Assembly Circuit Open	Check the mirror switch assembly wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2338	Mirror Switch Assembly Circuit Short to Battery	Inspect the mirror switch assembly wiring for a short to battery voltage, then repair or replace the affected wiring.
B2339	Mirror Switch Assembly Circuit Short to Ground	Check the mirror switch assembly circuit for a short to ground, then repair or replace the affected wiring.
B2340	Column Reach Motor Stalled	Check the steering column reach motor and mechanism for obstruction or binding, then repair the mechanism or replace the motor if necessary.
B2341	Column Tilt Motor Stalled	Check the steering column tilt motor and mechanism for obstruction or binding, then repair the mechanism or replace the motor if necessary.
B2342	Seat Switch Reference Voltage Positive Common Open Circuit	Check the seat switch reference voltage wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2343	Seat Switch Reference Voltage Positive Common Supply Low Voltage	Check the seat switch reference voltage supply, wiring, and connectors for low voltage, then repair the power supply circuit.
B2344	Seat Switch Reference Voltage Positive Common Supply Voltage Fault	Inspect the seat switch reference voltage supply, wiring, connectors, and control module, then repair the faulty circuit or component.
B2345	Seat Switch Reference Voltage Negative Common Open Circuit	Check the negative reference wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2346	Mirror Switch Reference Voltage Positive Common Open Circuit	Check the mirror switch reference voltage wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2347	Mirror Switch Reference Voltage Positive Common Supply Low Voltage	Check the mirror switch reference voltage supply for low voltage, then inspect the wiring, connectors, and power source and repair as required.
B2348	Mirror Switch Reference Voltage Positive Common Supply Voltage Fault	Inspect the mirror switch reference voltage supply, wiring, connectors, and control module, then repair the faulty circuit or component.
B2349	Mirror Switch Reference Voltage Negative Common Open Circuit	Check the negative reference wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2350	Steering Column Switch Circuit Short to Battery	Inspect the steering column switch wiring for a short to battery voltage, then repair or replace the affected wiring.
B2351	Steering Column Switch Circuit Failure	Check the steering column switch, wiring, connectors, and power supply, then repair or replace the faulty component.
B2352	Driver Memory Power Switch Indicator Circuit Short to Battery	Check the memory switch indicator wiring for a short to battery voltage, then repair or replace the affected wiring.
B2353	Driver Mirror Power Driver Circuit Short Ground	Inspect the driver mirror power circuit for a short to ground, then repair or replace the affected wiring or driver component.
B2354	Driver Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open	Check the driver mirror feedback potentiometer wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2355	Passenger Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open	Check the passenger mirror feedback potentiometer wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2357	Driver Window Down Current Sense Low Circuit Failure	Inspect the driver window motor, current sensing circuit, wiring, and connectors, then repair or replace the faulty component.
B2362	Remote Open/Close signal Circuit Short to Ground	Check the remote open/close signal wiring for a short to ground, then repair or replace the affected wiring.
B2363	Optical Sensor System Failure	Inspect the optical sensor, wiring, connectors, power supply, and sensor alignment, then repair or replace the faulty component.
B2364	Fuel Filler Door Circuit Open	Check the fuel filler door switch/actuator wiring and connectors for an open circuit, then restore continuity or replace the faulty component.
B2365	B-pillar Power Sliding Door Open/Close Switch Input Ckt Short to Gnd	Inspect the B-pillar sliding door switch wiring for a short to ground, then repair or replace the affected wiring.
B2366	IP Power Sliding Door Open/Close switch Ckt Short to Gnd	Check the instrument-panel sliding door switch circuit for a short to ground, then repair or replace the affected wiring.
B2367	Power Sliding Door Override Switch Input Ckt Short to Gnd	Inspect the sliding door override switch wiring for a short to ground, then repair or replace the affected wiring.
B2368	Steering Column Switch Circuit Out of Range	Check the steering column switch signal, wiring, connectors, and reference voltage, then repair or replace the faulty component.
B2369	Chime OUTPUT Request Ckt Short to Ground	Inspect the chime output request wiring for a short to ground, then repair or replace the affected wiring.
B2373	LED #1 Circuit Short to Battery	Check the LED #1 wiring for a short to battery voltage, then repair or replace the affected wiring or LED assembly.
B2374	Power Sliding Detent (Latch) Circuit Failure	Inspect the power sliding door latch, wiring, connectors, and actuator, then repair or replace the faulty component.
B2380	Heater Coolant Temp sensor circuit Short to GND	Check the heater coolant temperature sensor wiring for a short to ground, then repair or replace the affected wiring or sensor.
B2381	Heater Coolant Temp sensor circuit Open	Check the heater coolant temperature sensor wiring and connectors for an open circuit, then restore continuity or replace the sensor.
B2384	Audio Reverse Aid Mute Input Ckt Failure	Inspect the reverse-aid mute signal, wiring, connectors, and audio module, then repair or replace the faulty component.
B2385	Audio Navigation Mute Input Ckt Failure	Check the navigation mute signal, wiring, connectors, and audio module, then repair or replace the faulty component.
B2401	Audio Tape Deck Mechanism Fault	Inspect the tape deck mechanism for mechanical blockage or damage, then clean, repair, or replace the faulty mechanism.
B2402	Audio CD/DJ Thermal Shutdown Fault	Check the audio CD/DJ unit for overheating, ventilation problems, and electrical faults, then allow it to cool and repair or replace the faulty unit.
B2403	Audio CD/DJ Internal Fault	Inspect the audio CD/DJ unit, power supply, wiring, and connectors, then repair or replace the faulty unit.
B2404	Audio Steering Wheel Switch Circuit Fault	Check the steering wheel audio switch, wiring, connectors, and signal circuit, then repair or replace the faulty component.
B2405	Audio Single-Disc CD player Thermal Shutdown Fault	Check the CD player for overheating, blocked ventilation, or excessive electrical load, then repair the cooling or replace the faulty unit.
B2406	Audio Single-Disc CD player Internal Fault	Inspect the CD player, power supply, wiring, and connectors, then repair or replace the faulty unit.
B2416	Climate Control Recirculation Actuator Out of Limits	Check the recirculation actuator and air flap for obstruction or incorrect position, then repair or recalibrate the actuator.
B2425	Remote Keyless Entry Out of Synchronization	Resynchronize the remote key with the vehicle and check the receiver, battery, and communication circuit if synchronization fails.
B2426	Passenger Solar Radiation Sensor Circuit Open	Check the passenger solar sensor wiring and connectors for an open circuit, then restore continuity or replace the sensor.
B2427	Passenger Solar Radiation Sensor Circuit Short to Ground	Inspect the passenger solar sensor circuit for a short to ground, then repair or replace the affected wiring.
B2428	A/C Post Heater Sensor #2 Circuit Failure	Inspect the post-heater sensor #2, wiring, connectors, and circuit, then repair or replace the faulty component.
B2429	A/C Post Heater Sensor #2 Circuit Short to Ground	Check the post-heater sensor #2 wiring for a short to ground, then repair or replace the affected wiring or sensor.
B2431	Transponder Programming Failed	Check the transponder key, antenna, wiring, and programming system, then reprogram the key or replace the faulty component.
B2432	Drivers Seat Belt Buckle Switch Circuit Open	Check the driver seat belt buckle switch wiring and connectors for an open circuit, then restore continuity or replace the switch.
B2433	Drivers Seat Belt Buckle Switch Circuit Short to Battery	Inspect the driver seat belt buckle switch wiring for a short to battery voltage, then repair or replace the affected wiring.
B2434	Drivers Seat Belt Buckle Switch Circuit Short to Ground	Check the driver seat belt buckle switch circuit for a short to ground, then repair or replace the affected wiring.
B2435	Drivers Seat Belt Buckle Switch Resistance out of Range	Check the driver seat belt buckle switch resistance and wiring, then repair the circuit or replace the switch if necessary.
B2436	Passengers Seat Belt Buckle Switch Circuit Open	Check the passenger seat belt buckle switch wiring and connectors for an open circuit, then restore continuity or replace the switch.
B2437	Passengers Seat Belt Buckle Switch Circuit Short to Battery	Inspect the passenger seat belt buckle switch wiring for a short to battery voltage, then repair or replace the affected wiring.
B2438	Passengers Seat Belt Buckle Switch Circuit Short to Ground	Check the passenger seat belt buckle switch circuit for a short to ground, then repair or replace the affected wiring.
B2439	Passengers Seat Belt Buckle Switch Resistance out of Range	Check the passenger seat belt buckle switch resistance and wiring, then repair the circuit or replace the switch if necessary.
B2440	Passenger Side, Side crash sensor mount fault	Inspect the passenger side crash sensor mounting position and fasteners, then correctly secure or reposition the sensor.
B2441	Driver Side, Side crash sensor mount fault	Inspect the driver side crash sensor mounting position and fasteners, then correctly secure or reposition the sensor.
B2442	Intrusion Sensor Fault	Inspect the intrusion sensor, wiring, connectors, and power supply, then repair or replace the faulty sensor.
B2443	Power train Performance Mode Switch Circuit failure	Check the performance mode switch, wiring, connectors, and signal circuit, then repair or replace the faulty component.
B2444	Driver Side Crash Sensor Internal Fault	Inspect the driver side crash sensor, wiring, and connectors, then replace the sensor if an internal fault is confirmed.
B2445	Passenger Side Crash Sensor Internal Fault	Inspect the passenger side crash sensor, wiring, and connectors, then replace the sensor if an internal fault is confirmed.
B2446	RESCU/VEMS Input Circuit Open	Check the RESCU/VEMS input wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2447	RESCU/VEMS Input Circuit Short to Battery	Inspect the RESCU/VEMS input wiring for a short to battery voltage, then repair or replace the affected wiring.
B2448	RESCU/VEMS Input Circuit Short to Ground	Check the RESCU/VEMS input circuit for a short to ground, then repair or replace the affected wiring.
B2449	Aux Heater Glow Plug Circuit Short to Ground	Inspect the auxiliary heater glow plug wiring for a short to ground, then repair or replace the affected wiring or glow plug.
B2450	Aux Heater Glow Plug Circuit Open	Check the auxiliary heater glow plug wiring and connectors for an open circuit, then restore continuity or replace the faulty glow plug.
B2451	Aux Heater Fuel Pump Circuit Short to Ground	Check the auxiliary heater fuel pump wiring for a short to ground, then repair or replace the affected wiring or pump.
B2452	Aux Heater Fuel Pump Circuit Open	Check the auxiliary heater fuel pump wiring and connectors for an open circuit, then restore continuity or replace the faulty pump.
B2453	Aux Heater Blower Fan Circuit Short to Ground	Inspect the auxiliary heater blower fan wiring for a short to ground, then repair or replace the affected wiring.
B2454	Aux Heater Blower Fan Circuit Open	Check the auxiliary heater blower fan wiring and connectors for an open circuit, then restore continuity or repair the circuit.
B2455	Aux Heater Blower Faulted	Inspect the auxiliary heater blower motor, wiring, connectors, and power supply, then repair or replace the faulty blower.
B2456	Aux Heater Coolant Sensor Circuit Short to Ground	Check the coolant sensor wiring for a short to ground, then repair or replace the affected wiring or sensor.
B2457	Aux Heater Coolant Sensor Circuit Open	Check the coolant sensor wiring and connectors for an open circuit, then restore continuity or replace the sensor.
B2458	Aux Heater Overheat Sensor Circuit Short to Ground	Inspect the overheat sensor circuit for a short to ground, then repair or replace the affected wiring or sensor.
B2459	Aux Heater Overheat Sensor Circuit Open	Check the overheat sensor wiring and connectors for an open circuit, then restore continuity or replace the sensor.
B2460	Aux Heater Flame Sensor Circuit Short to Ground	Check the flame sensor wiring for a short to ground, then repair or replace the affected wiring or sensor.
B2461	Aux Heater Flame Sensor Circuit Open	Inspect the flame sensor wiring and connectors for an open circuit, then restore continuity or replace the sensor.
B2462	Aux Heater Flame Out Fault	Check the fuel supply, glow plug, flame sensor, and combustion system, then repair the cause of the flame-out condition.
B2463	Aux Heater Overheat Fault	Check coolant circulation, blower operation, temperature sensors, and heater passages, then repair the cause of overheating.
B2464	Aux Heater Start Time Exceeded	Check the fuel supply, glow plug, blower, flame sensor, and heater operation, then repair the cause of the delayed start.
B2465	Aux Heater Start Counter Overrun/System Locked	Check and repair the underlying heater start fault, then reset or unlock the auxiliary heater system using the appropriate diagnostic procedure.
B2466	Aux Heater Overheat Counter Overrun/System Locked	Check the cause of repeated overheating, repair the heater system, then reset or unlock the system with the appropriate diagnostic procedure.
B2467	Aux Heater Cool down Time Exceeded	Check coolant circulation, blower operation, temperature sensors, and heater operation, then repair the cause of excessive cool-down time.
B2468	Aux Heater Coolant Pump Circuit Short to Ground	Inspect the coolant pump wiring for a short to ground, then repair or replace the affected wiring or pump.
B2469	Aux Heater Coolant Pump Circuit Open	Check the coolant pump wiring and connectors for an open circuit, then restore continuity or replace the faulty pump.
B2470	Interior Fan Control Circuit Short to Ground	Check the interior fan control wiring for a short to ground, then repair or replace the affected wiring.
B2471	Interior Fan Control Circuit Open	Inspect the interior fan control wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2472	Fog Lamp Switch Failure	Check the fog lamp switch, wiring, connectors, and power supply, then repair or replace the faulty component.
B2473	Passenger Door Disarm Switch Ckt Short to Ground	Inspect the passenger door disarm switch wiring for a short to ground, then repair or replace the affected wiring.
B2474	Passenger Door Lock Switch Circuit Shorted to Ground	Check the passenger door lock switch wiring for a short to ground, then repair or replace the affected wiring.
B2475	Passenger Door Unlock Switch Circuit Shorted to Ground	Check the passenger door unlock switch wiring for a short to ground, then repair or replace the affected wiring.
B2476	RADIO PRESENT SWITCH Ckt Failure	Inspect the radio present switch, wiring, connectors, and signal circuit, then repair or replace the faulty component.
B2477	Module Configuration Failure	Check the module configuration and programming data, then reconfigure or reprogram the module and replace it if necessary.
B2478	ANTI THEFT INPUT SIGNAL SHORT TO GROUND	Inspect the anti-theft input wiring for a short to ground, then repair or replace the affected wiring.
B2479	BRAKE PARK SWITCH CIRCUIT SHORT TO GROUND	Check the parking brake switch wiring for a short to ground, then repair or replace the affected wiring or switch.
B2480	LF CORNER LAMP OUTPUT Ckt Short to Battery	Inspect the left-front corner lamp output wiring for a short to battery voltage, then repair or replace the affected wiring.
B2481	Convertible Top Up/Down switch Fault	Check the convertible top switch, wiring, connectors, and control circuit, then repair or replace the faulty component.
B2482	RF CORNER LAMP OUTPUT Ckt Short to Battery	Inspect the right-front corner lamp wiring for a short to battery voltage, then repair or replace the affected wiring.
B2483	Enable Signal Open Circuit	Check the enable signal wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2484	Disable Signal Short to Ground	Inspect the disable signal wiring for a short to ground, then repair or replace the affected wiring.
B2485	LF SIDE REPEATER LAMP OUTPUT Ckt Short to Battery	Check the left-front side repeater lamp wiring for a short to battery voltage, then repair or replace the affected wiring.
B2487	RF SIDE REPEATER LAMP OUTPUT Ckt Short to Battery	Check the right-front side repeater lamp wiring for a short to battery voltage, then repair or replace the affected wiring.
B2489	UNDERHOOD LAMP OUTPUT CIRCUIT Failure	Inspect the underhood lamp, wiring, connectors, and power supply, then repair or replace the faulty component.
B2490	UNDERHOOD LAMP OUTPUT CIRCUIT Short to Battery	Check the underhood lamp output wiring for a short to battery voltage, then repair or replace the affected wiring.
B2491	RF PARK LAMP OUTPUT CIRCUIT Short to Battery	Inspect the right-front park lamp wiring for a short to battery voltage, then repair or replace the affected wiring.
B2492	Already Programmed	Verify the module programming status and configuration, then perform reprogramming only if required by the diagnostic procedure.
B2493	LF PARK LAMP OUTPUT CIRCUIT Short to Battery	Inspect the left-front park lamp wiring for a short to battery voltage, then repair or replace the affected wiring.
B2494	ANTI THEFT HORN OUTPUT CIRCUIT Short to Batt	Check the anti-theft horn output wiring for a short to battery voltage, then repair or replace the affected wiring.
B2495	ANTI THEFT HORN OUTPUT CIRCUIT Failure	Inspect the anti-theft horn, relay, wiring, connectors, and power supply, then repair or replace the faulty component.
B2496	ANTI THEFT HORN OUTPUT CIRCUIT Short to Gnd	Check the anti-theft horn output wiring for a short to ground, then repair or replace the affected wiring.
B2499	COURTESY LAMP OUTPUT Failure	Inspect the courtesy lamps, wiring, connectors, and output circuit, then repair or replace the faulty component.
B2500	COURTESY LAMP OUTPUT Ckt Short to Battery	Check the courtesy lamp output wiring for a short to battery voltage, then repair or replace the affected wiring.
B2501	LF LAMP LOW BEAM CIRCUIT Failure	Inspect the left-front low beam lamp, wiring, connectors, and power supply, then repair or replace the faulty component.
B2502	LF LAMP LOW BEAM CIRCUIT Short to Battery	Check the left-front low beam circuit for a short to battery voltage, then repair or replace the affected wiring.
B2503	RF LAMP LOW BEAM CIRCUIT Failure	Inspect the right-front low beam lamp, wiring, connectors, and power supply, then repair or replace the faulty component.
B2504	RF LAMP LOW BEAM CIRCUIT Short to Battery	Check the right-front low beam circuit for a short to battery voltage, then repair or replace the affected wiring.
B2505	LF LAMP HIGH BEAM CIRCUIT Failure	Inspect the left-front high beam lamp, wiring, connectors, and power supply, then repair or replace the faulty component.
B2506	LF LAMP HIGH BEAM CIRCUIT Short to Battery	Check the left-front high beam circuit for a short to battery voltage, then repair or replace the affected wiring.
B2507	RF LAMP HIGH BEAM CIRCUIT Failure	Inspect the right-front high beam lamp, wiring, connectors, and power supply, then repair or replace the faulty component.
B2508	RF LAMP HIGH BEAM CIRCUIT Short to Battery	Check the right-front high beam circuit for a short to battery voltage, then repair or replace the affected wiring.
B2509	Rear Fog Lamp Switch Circuit Failure	Check the rear fog lamp switch, wiring, connectors, and power supply, then repair or replace the faulty component.
B2510	Main Blower Motor Relay Circuit Short to Battery	Inspect the main blower relay wiring for a short to battery voltage, then repair or replace the affected wiring.
B2511	Horn Output Relay Circuit Short to Battery	Check the horn relay output wiring for a short to battery voltage, then repair or replace the affected wiring.
B2512	Front Fog Lamp Relay Ckt Short to Battery	Inspect the front fog lamp relay wiring for a short to battery voltage, then repair or replace the affected wiring.
B2513	Blower (Fan) Circuit Failure	Inspect the blower motor, resistor/controller, wiring, connectors, and power supply, then repair or replace the faulty component.
B2514	Blower (Fan) Circuit Short to V batt	Check the blower circuit wiring for a short to battery voltage, then repair or replace the affected wiring.
B2515	Heater Blower Relay Circuit Failure	Inspect the heater blower relay, wiring, connectors, and power supply, then repair or replace the faulty component.
B2516	Blower Control Circuit Failure	Check the blower control module, wiring, connectors, and control signal, then repair or replace the faulty component.
B2517	Emergency Power off System Faulted	Inspect the emergency power-off system, switches, wiring, connectors, and power supply, then repair or reset the system as required.
B2518	Compressor Over temp Fault	Check the compressor for overheating, proper cooling, refrigerant condition, and electrical load, then repair the cause of overheating.
B2519	High Mount Stop Lamp Circuit Failure	Inspect the high-mount stop lamp, wiring, connectors, and power supply, then repair or replace the faulty component.
B2520	High Mount Stop Lamp Circuit Short to Battery	Check the high-mount stop lamp wiring for a short to battery voltage, then repair or replace the affected wiring.
B2523	License Lamp Circuit Failure	Inspect the license lamps, wiring, connectors, and power supply, then repair or replace the faulty component.
B2524	License Lamp Circuit Short to Battery	Check the license lamp wiring for a short to battery voltage, then repair or replace the affected wiring.
B2525	Left Rear Backup Lamp Circuit Failure	Inspect the left rear backup lamp, wiring, connectors, and power supply, then repair or replace the faulty component.
B2526	Left Rear Backup Lamp Circuit Short to Battery	Check the left rear backup lamp wiring for a short to battery voltage, then repair or replace the affected wiring.
B2527	Left Rear Stop lamp Circuit Failure	Inspect the left rear stop lamp, wiring, connectors, and power supply, then repair or replace the faulty component.
B2528	Left Rear Stop lamp Circuit Short to Battery	Check the left rear stop lamp wiring for a short to battery voltage, then repair or replace the affected wiring.
B2529	Left Rear Turn Lamp Circuit Failure	Inspect the left rear turn lamp, wiring, connectors, and power supply, then repair or replace the faulty component.
B2530	Left Rear Turn Lamp Circuit Short to Battery	Check the left rear turn lamp wiring for a short to battery voltage, then repair or replace the affected wiring.
B2531	Right Rear Backup Lamp Circuit Failure	Inspect the right rear backup lamp, wiring, connectors, and power supply, then repair or replace the faulty component.
B2532	Right Rear Backup Lamp Circuit Short to Battery	Check the right rear backup lamp wiring for a short to battery voltage, then repair or replace the affected wiring.
B2533	Right Rear Stop lamp Circuit Failure	Inspect the right rear stop lamp, wiring, connectors, and power supply, then repair or replace the faulty component.
B2534	Right Rear Stop lamp Circuit Short to Battery	Check the right rear stop lamp wiring for a short to battery voltage, then repair or replace the affected wiring.
B2535	Right Rear Turn Lamp Circuit Failure	Inspect the right rear turn lamp, wiring, connectors, and power supply, then repair or replace the faulty component.
B2536	Right Rear Turn Lamp Circuit Short to Battery	Check the right rear turn lamp wiring for a short to battery voltage, then repair or replace the affected wiring.
B2539	Aux A/C Mode Position Reference Circuit Short to Ground	Check the auxiliary A/C mode position reference wiring for a short to ground, then repair or replace the affected wiring.
B2540	Aux A/C Mode Position Reference Circuit Short to Battery	Inspect the auxiliary A/C mode position reference wiring for a short to battery voltage, then repair or replace the affected wiring.
B2543	Aux A/C Control Switch Reference Circuit Short to Ground	Check the auxiliary A/C control switch reference circuit for a short to ground, then repair or replace the affected wiring.
B2544	Aux A/C Control Switch Reference Circuit Short to Battery	Inspect the auxiliary A/C control switch reference circuit for a short to battery voltage, then repair or replace the affected wiring.
B2545	System Power Relay Circuit Short to Battery	Check the system power relay wiring for a short to battery voltage, then repair or replace the affected wiring.
B2546	System Power Relay Circuit Failure	Inspect the system power relay, wiring, connectors, and power supply, then repair or replace the faulty component.
B2550	LAMP DOME OUTPUT Circuit Short to Ground	Check the dome lamp output wiring for a short to ground, then repair or replace the affected wiring.
B2553	Disable Signal Output Circuit Short to Battery	Inspect the disable signal output wiring for a short to battery voltage, then repair or replace the affected wiring.
B2554	LAMP DOME OUTPUT Circuit Failure	Inspect the dome lamp, wiring, connectors, and output circuit, then repair or replace the faulty component.
B2555	LAMP DOME OUTPUT Circuit Short to Battery	Check the dome lamp output wiring for a short to battery voltage, then repair or replace the affected wiring.
B2556	Enable Signal Circuit Short to Battery	Inspect the enable signal wiring for a short to battery voltage, then repair or replace the affected wiring.
B2557	Left Power Sliding Door Open/Close Output Circuit Short to Battery	Check the left power sliding door output wiring for a short to battery voltage, then repair or replace the affected wiring.
B2558	Right Power Sliding Door Open/Close Output Circuit Short to Battery	Check the right power sliding door output wiring for a short to battery voltage, then repair or replace the affected wiring.
B2559	Aux A/C Blower Motor Relay Circuit Short to Battery	Inspect the auxiliary A/C blower relay wiring for a short to battery voltage, then repair or replace the affected wiring.
B2560	Aux A/C Blower Motor Relay Circuit Short to Ground	Check the auxiliary A/C blower relay wiring for a short to ground, then repair or replace the affected wiring.
B2561	Aux A/C Blower Speed 1 Circuit Failure	Inspect the auxiliary A/C blower motor, speed control circuit, wiring, and connectors, then repair or replace the faulty component.
B2562	Aux A/C Blower Speed 1 Circuit Short to Ground	Check the auxiliary A/C blower speed 1 wiring for a short to ground, then repair or replace the affected wiring.
B2563	Aux A/C Blower Speed 2 Circuit Failure	Inspect the auxiliary A/C blower motor, speed 2 control circuit, wiring, and connectors, then repair or replace the faulty component.
B2564	Aux A/C Blower Speed 2 Circuit Short to Ground	Check the auxiliary A/C blower speed 2 wiring for a short to ground, then repair or replace the affected wiring.
B2565	Right Tail Lamp Circuit Failure	Inspect the right tail lamp, bulb/LED assembly, wiring, connectors, and power supply, then repair or replace the faulty component.
B2566	Right Tail Lamp Circuit Short to Ground	Check the right tail lamp wiring for a short to ground, then repair or replace the affected wiring.
B2567	Reverse Mirror Output Circuit Failure	Inspect the reverse mirror control circuit, wiring, connectors, and mirror actuator, then repair or replace the faulty component.
B2568	Reverse Mirror Output Circuit Short to Ground	Check the reverse mirror output wiring for a short to ground, then repair or replace the affected wiring.
B2569	Lift gate Disarm Switch Circuit Short to Ground	Inspect the liftgate disarm switch wiring for a short to ground, then repair or replace the affected wiring.
B2570	Right Lamp Outage Signal Circuit Short to Ground	Check the right lamp outage signal wiring for a short to ground, then repair or replace the affected wiring.
B2571	Left Lamp Outage Signal Circuit Short to Ground	Check the left lamp outage signal wiring for a short to ground, then repair or replace the affected wiring.
B2580	Aux Blower Sense Switch Circuit Failure	Inspect the auxiliary blower sense switch, wiring, connectors, and signal circuit, then repair or replace the faulty component.
B2581	Passenger Seat Occupant Detection Circuit Short To Ground	Check the passenger occupant detection wiring for a short to ground, then repair or replace the affected wiring or sensor.
B2582	Passenger Seat Occupant Detection Circuit Open	Inspect the passenger occupant detection wiring and connectors for an open circuit, then restore continuity or replace the faulty sensor.
B2583	Child Seat Detection Circuit Short to Ground	Check the child seat detection circuit for a short to ground, then repair or replace the affected wiring or sensor.
B2584	Child Seat Detection Circuit Open	Inspect the child seat detection wiring and connectors for an open circuit, then restore continuity or replace the faulty sensor.
B2585	Anti Theft Input Signal Circuit Short To Battery	Inspect the anti-theft input wiring for a short to battery voltage, then repair or replace the affected wiring.
B2586	Headlamp Mode Select Circuit Failure	Check the headlamp mode switch, wiring, connectors, and signal circuit, then repair or replace the faulty component.
B2587	Passenger Seat Occupant Detection Circuit Short To Battery	Inspect the passenger occupant detection wiring for a short to battery voltage, then repair or replace the affected wiring or sensor.
B2588	Child Seat Detection Circuit Short To Battery	Check the child seat detection wiring for a short to battery voltage, then repair or replace the affected wiring or sensor.
B2589	Unexpected Door Reversal during Close	Check the power sliding door tracks, rollers, latch, motor, and obstruction detection system, then remove any obstruction and repair the faulty component.
B2590	Vehicle Park/Speed Signal Circuit Failure	Inspect the vehicle park/speed signal wiring, connectors, and input signal, then repair the circuit or faulty sensor.
B2591	Detent Signal Missing During Unlatch	Check the sliding door latch and detent switch, wiring, and connectors, then repair or replace the faulty component.
B2592	PSD Not Fully Closed (Module Commanded Successfully)	Inspect the power sliding door for mechanical obstruction, latch engagement, alignment, and position sensors, then repair or adjust the door mechanism.
B2593	Power Sliding Door Opened During Module Close Command	Check the sliding door mechanism, latch, position sensors, and obstruction detection system, then repair the cause of the unexpected opening.
B2594	No Movement Detected After an Unlatch During Power Open	Check the power sliding door latch, motor, wiring, and mechanical mechanism for obstruction or failure, then repair or replace the faulty component.
B2595	Anti Theft Input Signal Circuit Failure	Inspect the anti-theft input circuit, wiring, connectors, and sensors, then repair or replace the faulty component.
B2596	Headlamp Aim Output Relay Circuit Short To Battery	Check the headlamp aim relay wiring for a short to battery voltage, then repair or replace the affected wiring.
B2597	Headlamp Aim Output Relay Circuit Failure	Inspect the headlamp aim relay, wiring, connectors, and power supply, then repair or replace the faulty component.
B2598	Headlamp Relay Circuit Failure	Check the headlamp relay, wiring, connectors, fuse, and power supply, then repair or replace the faulty component.
B2599	Tailgate Release Open Circuit	Inspect the tailgate release wiring and connectors for an open circuit, then restore continuity or replace the faulty switch/actuator.
B2600	Double Locking Door Motor Frozen	Check the double-lock door motor and mechanism for binding or obstruction, then free the mechanism or replace the faulty motor.
B2601	No Latch Signal Sensed on Closing and Door Reversed	Inspect the door latch, latch sensor, wiring, and door alignment, then repair the latch system and remove any mechanical obstruction.
B2602	Missing Latch Signal during Power Sliding Door Unlatch	Check the sliding door latch, latch sensor, wiring, and connectors, then repair or replace the faulty component.
B2603	PSD Not Fully Closed During Self-Test	Inspect the power sliding door alignment, latch, rollers, position sensors, and motor, then repair or adjust the door mechanism.
B2604	Power Sliding Door On/Off Switch Open Circuit	Check the power sliding door switch wiring and connectors for an open circuit, then restore continuity or replace the switch.
B2605	Disable Signal Open Circuit	Inspect the disable signal wiring and connectors for an open circuit, then restore continuity and secure the connections.
B2606	A/C Temperature Sensor Out of Range	Check the A/C temperature sensor, wiring, connectors, and sensor signal, then repair or replace the faulty sensor.

Communication (U)

Code DTC	Description	Troubleshooting instructions
U0001	High Speed CAN Communication Bus	Check the CAN-H/CAN-L wiring, connectors, power, grounds, and termination resistance, then repair the communication circuit.
U0002	High Speed CAN Communication Bus Performance	Inspect the CAN wiring for high resistance, poor connections, interference, or termination faults, then repair the affected circuit.
U0003	High Speed CAN Communication Bus (+) Open	Check CAN-H wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0004	High Speed CAN Communication Bus (+) Low	Check CAN-H for a short to ground or excessive resistance, then repair the wiring or faulty connection.
U0005	High Speed CAN Communication Bus (+) High	Inspect CAN-H for a short to battery or abnormal voltage, then repair the wiring or affected module.
U0006	High Speed CAN Communication Bus (-) Open	Check CAN-L wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0007	High Speed CAN Communication Bus (-) Low	Check CAN-L for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0008	High Speed CAN Communication Bus (-) High	Inspect CAN-L for a short to battery or excessive voltage, then repair the wiring or affected module.
U0009	High Speed CAN Communication Bus (-) shorted to Bus (+)	Check CAN-H and CAN-L for a short between the two lines, then repair the damaged wiring or connector.
U0010	Medium Speed CAN Communication Bus	Inspect the medium-speed CAN wiring, connectors, power, grounds, and termination, then repair the communication circuit.
U0011	Medium Speed CAN Communication Bus Performance	Check the medium-speed CAN network for high resistance, poor connections, interference, or termination problems, then repair the affected circuit.
U0012	Medium Speed CAN Communication Bus (+) Open	Check the medium-speed CAN-H wiring and connectors for an open circuit, then restore continuity or repair the wiring.
U0013	Medium Speed CAN Communication Bus (+) Low	Inspect CAN-H for a short to ground or abnormal low voltage, then repair the wiring or connector.
U0014	Medium Speed CAN Communication Bus (+) High	Check CAN-H for a short to battery or excessive voltage, then repair the wiring or affected module.
U0015	Medium Speed CAN Communication Bus (-) Open	Check the medium-speed CAN-L wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0016	Medium Speed CAN Communication Bus (-) Low	Inspect CAN-L for a short to ground or abnormal low voltage, then repair the wiring or connection.
U0017	Medium Speed CAN Communication Bus (-) High	Check CAN-L for a short to battery or excessive voltage, then repair the wiring or affected module.
U0018	Medium Speed CAN Communication Bus (-) shorted to Bus (+)	Check CAN-H and CAN-L for a short between the lines, then repair the damaged wiring or connector.
U0019	Low Speed CAN Communication Bus	Inspect the low-speed CAN wiring, connectors, power, grounds, and network termination, then repair the communication circuit.
U0020	Low Speed CAN Communication Bus Performance	Check the low-speed CAN network for high resistance, poor connections, interference, or termination faults, then repair the affected circuit.
U0021	Low Speed CAN Communication Bus (+) Open	Check the low-speed CAN-H wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0022	Low Speed CAN Communication Bus (+) Low	Inspect CAN-H for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0023	Low Speed CAN Communication Bus (+) High	Check CAN-H for a short to battery or excessive voltage, then repair the wiring or affected module.
U0024	Low Speed CAN Communication Bus (-) Open	Check the low-speed CAN-L wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0025	Low Speed CAN Communication Bus (-) Low	Inspect CAN-L for a short to ground or abnormal low voltage, then repair the wiring or connector.
U0026	Low Speed CAN Communication Bus (-) High	Check CAN-L for a short to battery or excessive voltage, then repair the wiring or affected module.
U0027	Low Speed CAN Communication Bus (-) shorted to Bus (+)	Check CAN-H and CAN-L for a short between the two lines, then repair the damaged wiring or connector.
U0028	Vehicle Communication Bus A	Check the vehicle communication bus wiring, connectors, power, grounds, and connected modules, then repair the faulty communication circuit.
U0029	Vehicle Communication Bus A Performance	Inspect Bus A for communication interruptions, high resistance, poor connections, interference, or termination problems, then repair the affected circuit.
U0030	Vehicle Communication Bus A (+) Open	Check Bus A (+) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0031	Vehicle Communication Bus A (+) Low	Inspect Bus A (+) for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0032	Vehicle Communication Bus A (+) High	Check Bus A (+) for a short to battery or excessive voltage, then repair the wiring or affected module.
U0033	Vehicle Communication Bus A (-) Open	Check Bus A (-) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0034	Vehicle Communication Bus A (-) Low	Inspect Bus A (-) for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0035	Vehicle Communication Bus A (-) High	Check Bus A (-) for a short to battery or excessive voltage, then repair the wiring or affected module.
U0036	Vehicle Communication Bus A (-) shorted to Bus A (+)	Check Bus A (+) and Bus A (-) for a short between the two lines, then repair the damaged wiring or connector.
U0037	Vehicle Communication Bus B	Inspect Bus B wiring, connectors, power, grounds, and connected modules, then repair the communication circuit.
U0038	Vehicle Communication Bus B Performance	Check Bus B for high resistance, poor connections, interference, or termination faults, then repair the affected circuit.
U0039	Vehicle Communication Bus B (+) Open	Check Bus B (+) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0040	Vehicle Communication Bus B (+) Low	Inspect Bus B (+) for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0041	Vehicle Communication Bus B (+) High	Check Bus B (+) for a short to battery or excessive voltage, then repair the wiring or affected module.
U0042	Vehicle Communication Bus B (-) Open	Check Bus B (-) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0043	Vehicle Communication Bus B (-) Low	Inspect Bus B (-) for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0044	Vehicle Communication Bus B (-) High	Check Bus B (-) for a short to battery or excessive voltage, then repair the wiring or affected module.
U0045	Vehicle Communication Bus B (-) shorted to Bus B (+)	Check Bus B (+) and Bus B (-) for a short between the two lines, then repair the damaged wiring or connector.
U0046	Vehicle Communication Bus C	Inspect Bus C wiring, connectors, power, grounds, and connected modules, then repair the communication circuit.
U0047	Vehicle Communication Bus C Performance	Check Bus C for high resistance, poor connections, interference, or termination faults, then repair the affected circuit.
U0048	Vehicle Communication Bus C (+) Open	Check Bus C (+) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0049	Vehicle Communication Bus C (+) Low	Inspect Bus C (+) for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0050	Vehicle Communication Bus C (+) High	Check Bus C (+) for a short to battery or excessive voltage, then repair the wiring or affected module.
U0051	Vehicle Communication Bus C (-) Open	Check Bus C (-) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0052	Vehicle Communication Bus C (-) Low	Inspect Bus C (-) for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0053	Vehicle Communication Bus C (-) High	Check Bus C (-) for a short to battery or excessive voltage, then repair the wiring or affected module.
U0054	Vehicle Communication Bus C (-) shorted to Bus C (+)	Check Bus C (+) and Bus C (-) for a short between the two lines, then repair the damaged wiring or connector.
U0055	Vehicle Communication Bus D	Inspect Bus D wiring, connectors, power, grounds, and connected modules, then repair the communication circuit.
U0056	Vehicle Communication Bus D Performance	Check Bus D for high resistance, poor connections, interference, or termination faults, then repair the affected circuit.
U0057	Vehicle Communication Bus D (+) Open	Check Bus D (+) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0058	Vehicle Communication Bus D (+) Low	Inspect Bus D (+) for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0059	Vehicle Communication Bus D (+) High	Check Bus D (+) for a short to battery or excessive voltage, then repair the wiring or affected module.
U0060	Vehicle Communication Bus D (-) Open	Check the Bus D (-) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0061	Vehicle Communication Bus D (-) Low	Check Bus D (-) for a short to ground or low voltage condition, and repair the wiring or connector causing the fault.
U0062	Vehicle Communication Bus D (-) High	Check Bus D (-) for a short to battery or excessive voltage, then repair the wiring or affected connection.
U0063	Vehicle Communication Bus D (-) shorted to Bus D (+)	Check Bus D (+) and Bus D (-) for a short between the two communication lines, then repair the damaged wiring or connector.
U0064	Vehicle Communication Bus E	Inspect Bus E wiring, connectors, power supplies, grounds, and terminating resistors, then repair the communication circuit or faulty module.
U0065	Vehicle Communication Bus E Performance	Check Bus E for high resistance, poor connections, interference, or termination problems, and repair the affected circuit.
U0066	Vehicle Communication Bus E (+) Open	Check the Bus E (+) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0067	Vehicle Communication Bus E (+) Low	Check Bus E (+) for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0068	Vehicle Communication Bus E (+) High	Check Bus E (+) for a short to battery or excessive voltage, then repair the wiring or affected module.
U0069	Vehicle Communication Bus E (-) Open	Check the Bus E (-) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0070	Vehicle Communication Bus E (-) Low	Check Bus E (-) for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0071	Vehicle Communication Bus E (-) High	Check Bus E (-) for a short to battery or excessive voltage, then repair the wiring or affected module.
U0072	Vehicle Communication Bus E (-) shorted to Bus E (+)	Check Bus E (+) and Bus E (-) for a short between the two lines, then repair the damaged wiring or connector.
U0073	Control Module Communication Bus Off	Inspect the CAN communication wiring, connectors, power, grounds, and terminating resistors, then repair the fault causing the bus to go offline.
U0074	Control Module Communication Bus B Off	Check the Bus B wiring, connectors, power supplies, grounds, and connected modules, then repair the fault causing loss of communication.
U0075	Control Module Communication Bus C Off	Check the Bus C wiring, connectors, power supplies, grounds, and connected modules, then repair the fault causing loss of communication.
U0076	Control Module Communication Bus D Off	Check the Bus D wiring, connectors, power supplies, grounds, and connected modules, then repair the fault causing the bus to go offline.
U0077	Control Module Communication Bus E Off	Inspect Bus E wiring, connectors, power, grounds, and connected modules, then repair the condition causing the communication bus to go offline.
U0078	Control Module Communication Bus F Off	Inspect Bus F wiring, connectors, power supplies, grounds, and terminating resistors, then repair the communication fault or affected module.
U0079	Control Module Communication Bus G Off	Check Bus G wiring, connectors, power, grounds, and connected modules, then repair the fault causing the communication bus to go offline.
U0080	Vehicle Communication Bus F	Inspect Bus F wiring, connectors, power supplies, grounds, and terminating resistors, then repair the communication circuit or faulty module.
U0081	Vehicle Communication Bus F Performance	Check Bus F for high resistance, poor connections, electrical interference, or incorrect termination, then repair the affected circuit.
U0082	Vehicle Communication Bus F (+) Open	Check Bus F (+) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0083	Vehicle Communication Bus F (+) Low	Check Bus F (+) for a short to ground or abnormal low voltage, then repair the wiring or faulty connector.
U0084	Vehicle Communication Bus F (+) High	Check Bus F (+) for a short to battery or excessive voltage, then repair the wiring or affected module.
U0085	Vehicle Communication Bus F (-) Open	Check Bus F (-) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0086	Vehicle Communication Bus F (-) Low	Check Bus F (-) for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0087	Vehicle Communication Bus F (-) High	Check Bus F (-) for a short to battery or excessive voltage, then repair the wiring or affected module.
U0088	Vehicle Communication Bus F (-) Shorted to Bus F (+)	Check Bus F (+) and Bus F (-) for a short between the two communication lines, then repair the damaged wiring or connector.
U0089	Vehicle Communication Bus G	Inspect Bus G wiring, connectors, power supplies, grounds, and terminating resistors, then repair the communication circuit or faulty module.
U0090	Vehicle Communication Bus G Performance	Check Bus G for high resistance, poor connections, electrical interference, or termination problems, then repair the affected circuit.
U0091	Vehicle Communication Bus G (+) Open	Check Bus G (+) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0092	Vehicle Communication Bus G (+) Low	Check Bus G (+) for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0093	Vehicle Communication Bus G (+) High	Check Bus G (+) for a short to battery or excessive voltage, then repair the wiring or affected module.
U0094	Vehicle Communication Bus G (-) Open	Check Bus G (-) wiring and connectors for an open circuit, then restore continuity or repair the damaged wiring.
U0095	Vehicle Communication Bus G (-) Low	Check Bus G (-) for a short to ground or abnormal low voltage, then repair the wiring or faulty connection.
U0096	Vehicle Communication Bus G (-) High	Check Bus G (-) for a short to battery or excessive voltage, then repair the wiring or affected module.
U0097	Vehicle Communication Bus G (-) Shorted to Bus G (+)	Check Bus G (+) and Bus G (-) for a short between the two communication lines, then repair the damaged wiring or connector.
U0098	Vehicle Communication Bus H	Inspect Bus H wiring, connectors, power supplies, grounds, and terminating resistors, then repair the communication circuit or faulty module.
U0099	Vehicle Communication Bus H Performance	Check Bus H for high resistance, poor connections, electrical interference, or termination problems, then repair the affected circuit.
U0100	Lost Communication With ECM/PCM “A”	Check the ECM/PCM power supply, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0101	Lost Communication with TCM	Check the TCM power supply, grounds, CAN wiring, and connectors, then repair the communication circuit or replace the faulty module if necessary.
U0102	Lost Communication with Transfer Case Control Module	Check the transfer case module power, grounds, CAN wiring, and connectors, then repair the circuit or faulty module.
U0103	Lost Communication With Gear Shift Module	Inspect the gear shift module power supply, ground, wiring, and communication lines, then repair the fault or replace the module if required.
U0104	Lost Communication With Cruise Control Module	Check the cruise control module power, ground, communication wiring, and connectors, then repair the affected circuit or module.
U0105	Lost Communication With Fuel Injector Control Module	Check the fuel injector control module power supply, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0106	Lost Communication With Glow Plug Control Module	Inspect the glow plug control module power, ground, wiring, and CAN communication lines, then repair the circuit or module.
U0107	Lost Communication With Throttle Actuator Control Module	Check the throttle actuator control module power, grounds, wiring, and CAN connections, then repair the communication fault or faulty module.
U0108	Lost Communication With Alternative Fuel Control Module	Check the alternative fuel control module power, grounds, communication wiring, and connectors, then repair the circuit or affected module.
U0109	Lost Communication With Fuel Pump Control Module	Inspect the fuel pump control module power supply, grounds, CAN wiring, and connectors, then repair the communication circuit or module.
U0110	Lost Communication With Drive Motor Control Module	Check the drive motor control module power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0111	Lost Communication With Battery Energy Control Module “A”	Check the battery energy control module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0112	Lost Communication With Battery Energy Control Module “B”	Inspect the battery energy control module power supply, grounds, communication wiring, and connectors, then repair the affected circuit or module.
U0113	Lost Communication With Emissions Critical Control Information	Check the related control module power, grounds, CAN communication lines, and connectors, then repair the communication fault or affected module.
U0114	Lost Communication With Four-Wheel Drive Clutch Control Module	Check the 4WD clutch control module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0115	Lost Communication With ECM/PCM “B”	Check ECM/PCM “B” power, grounds, CAN wiring, and connectors, then repair the communication circuit or replace the faulty module if necessary.
U0116	Lost Communication With Vehicle Dynamics Control Module	Inspect the vehicle dynamics control module power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0117	Lost Communication With Engine Coolant Temperature Module	Check the engine coolant temperature module power, ground, wiring, and communication connections, then repair the affected circuit or module.
U0118	Lost Communication With Fuel Injection Control Module	Inspect the fuel injection control module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0119	Lost Communication With Transmission Fluid Temperature Sensor Module	Check the transmission fluid temperature sensor module wiring, power, ground, and communication connections, then repair the affected circuit or sensor/module.
U0120	Lost Communication With Generator/Starter Control Module	Check the generator/starter control module power supply, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0121	Lost Communication With Anti-Lock Brake System (ABS) Control Module	Check the ABS module power, grounds, CAN wiring, and connectors, then repair the communication fault or replace the faulty module if necessary.
U0122	Lost Communication With Vehicle Dynamics Control Module	Inspect the vehicle dynamics control module power supply, grounds, CAN wiring, and connectors, then repair the affected circuit or module.
U0123	Lost Communication With Yaw Rate Sensor Module	Check the yaw rate sensor module power, ground, wiring, and CAN connections, then repair the communication circuit or faulty sensor/module.
U0124	Lost Communication With Lateral Acceleration Sensor Module	Inspect the lateral acceleration sensor power, ground, wiring, and communication lines, then repair the affected circuit or module.
U0125	Lost Communication With Multi-axis Acceleration Sensor Module	Check the multi-axis acceleration sensor power supply, ground, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0126	Lost Communication With Steering Angle Sensor Module	Inspect the steering angle sensor module power, ground, CAN wiring, and connectors, then repair the communication circuit or faulty sensor/module.
U0127	Lost Communication With Tire Pressure Monitor Module	Check the TPMS module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0128	Lost Communication With Park Brake Control Module	Check the park brake control module power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0129	Lost Communication With Brake System Control Module	Inspect the brake system control module power supply, grounds, communication wiring, and connectors, then repair the affected circuit or module.
U0130	Lost Communication With Steering Effort Control Module	Check the steering effort control module power, ground, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0131	Lost Communication With Power Steering Control Module	Inspect the power steering control module power supply, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0132	Lost Communication With Ride Level Control Module	Check the ride level control module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0133	Lost Communication With Active Roll Control Module	Inspect the active roll control module power, ground, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0134	Lost Communication With Power Steering Control Module – Rear	Check the rear power steering control module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0135	Lost Communication With Differential Control Module – Front	Inspect the front differential control module power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0136	Lost Communication With Differential Control Module – Rear	Check the rear differential control module power supply, grounds, CAN wiring, and connectors, then repair the affected circuit or module.
U0137	Lost Communication With Trailer Brake Control Module	Inspect the trailer brake control module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0138	Lost Communication With All Terrain Control Module	Check the all-terrain control module power supply, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0139	Lost Communication With Suspension Control Module “B”	Inspect suspension control module “B” power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0140	Lost Communication With Body Control Module	Check the body control module power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0141	Lost Communication With Body Control Module “A”	Inspect BCM “A” power supply, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0142	Lost Communication With Body Control Module “B”	Check BCM “B” power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0143	Lost Communication With Body Control Module “C”	Inspect BCM “C” power supply, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0144	Lost Communication With Body Control Module “D”	Check BCM “D” power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0145	Lost Communication With Body Control Module “E”	Inspect BCM “E” power supply, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0146	Lost Communication With Gateway “A”	Check Gateway “A” power, grounds, CAN communication lines, and connectors, then repair the communication fault or faulty gateway module.
U0147	Lost Communication With Gateway “B”	Inspect Gateway “B” power supply, grounds, CAN wiring, and connectors, then repair the affected communication circuit or module.
U0148	Lost Communication With Gateway “C”	Check Gateway “C” power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty gateway module.
U0149	Lost Communication With Gateway “D”	Inspect Gateway “D” power supply, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0150	Lost Communication With Gateway “E”	Check Gateway “E” power supply, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0151	Lost Communication With Restraints Control Module	Check the restraints control module power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0152	Lost Communication With Side Restraints Control Module	Inspect the side restraints control module power supply, grounds, CAN wiring, and connectors, then repair the affected circuit or module.
U0153	Lost Communication With Side Restraints Control Module	Check the side restraints control module power, ground, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0154	Lost Communication With Restraints Occupant Sensing Control Module	Inspect the occupant sensing control module power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0155	Lost Communication With Instrument Panel Cluster (IPC) Control Module	Check the IPC power supply, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty instrument cluster.
U0156	Lost Communication With Information Center “A”	Inspect Information Center “A” power, grounds, CAN wiring, and connectors, then repair the communication fault or affected module.
U0157	Lost Communication With Information Center “B”	Check Information Center “B” power supply, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0158	Lost Communication With Head Up Display	Inspect the head-up display power, ground, CAN wiring, and connectors, then repair the communication circuit or faulty display module.
U0159	Lost Communication With Parking Assist Control Module	Check the parking assist module power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0160	Lost Communication With Audible Alert Control Module	Inspect the audible alert control module power, grounds, CAN wiring, and connectors, then repair the affected communication circuit or module.
U0161	Lost Communication With Compass Module	Check the compass module power supply, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0162	Lost Communication With Navigation Display Module	Inspect the navigation display module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty display module.
U0163	Lost Communication With Navigation Control Module	Check the navigation control module power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0164	Lost Communication With HVAC Control Module	Inspect the HVAC control module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0165	Lost Communication With HVAC Control Module	Check the HVAC control module power supply, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0166	Lost Communication With Auxiliary Heater Control Module	Inspect the auxiliary heater control module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0167	Lost Communication With Vehicle Immobilizer Control Module	Check the immobilizer control module power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0168	Lost Communication With Vehicle Security Control Module	Inspect the vehicle security control module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0169	Lost Communication With Sunroof Control Module	Check the sunroof control module power supply, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0170	Lost Communication With “Restraints System Sensor A”	Inspect the restraint sensor “A” power, ground, CAN wiring, and connectors, then repair the communication circuit or faulty sensor/module.
U0171	Lost Communication With “Restraints System Sensor B”	Check restraint sensor “B” power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty sensor/module.
U0172	Lost Communication With “Restraints System Sensor C”	Inspect restraint sensor “C” power, grounds, CAN wiring, and connectors, then repair the affected communication circuit or sensor/module.
U0173	Lost Communication With “Restraints System Sensor D”	Check restraint sensor “D” power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty sensor/module.
U0174	Lost Communication With “Restraints System Sensor E”	Inspect restraint sensor “E” power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty sensor/module.
U0175	Lost Communication With “Restraints System Sensor F”	Check restraint sensor “F” power, grounds, CAN wiring, and connectors, then repair the affected communication circuit or sensor/module.
U0176	Lost Communication With “Restraints System Sensor G”	Inspect restraint sensor “G” power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty sensor/module.
U0177	Lost Communication With “Restraints System Sensor H”	Check restraint sensor “H” power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty sensor/module.
U0178	Lost Communication With “Restraints System Sensor I”	Inspect restraint sensor “I” power, grounds, CAN wiring, and connectors, then repair the affected communication circuit or sensor/module.
U0179	Lost Communication With “Restraints System Sensor J”	Check restraint sensor “J” power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty sensor/module.
U0180	Lost Communication With Automatic Lighting Control Module	Check the automatic lighting control module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0181	Lost Communication With Headlamp Leveling Control Module	Inspect the headlamp leveling module power supply, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0182	Lost Communication With Lighting Control Module	Check the lighting control module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0183	Lost Communication With Lighting Control Module	Inspect the lighting control module power supply, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0184	Lost Communication With Radio	Check the radio power, ground, CAN wiring, and connectors, then repair the communication circuit or faulty radio module.
U0185	Lost Communication With Antenna Control Module	Inspect the antenna control module power, grounds, communication wiring, and connectors, then repair the affected circuit or module.
U0186	Lost Communication With Audio Amplifier	Check the audio amplifier power supply, grounds, CAN wiring, and connectors, then repair the communication fault or faulty amplifier.
U0187	Lost Communication With Digital Disc Player/Changer Module “A”	Inspect the digital disc player/changer module “A” power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0188	Lost Communication With Digital Disc Player/Changer Module “B”	Check digital disc player/changer module “B” power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0189	Lost Communication With Digital Disc Player/Changer Module “C”	Inspect digital disc player/changer module “C” power, grounds, CAN wiring, and connectors, then repair the affected communication circuit or module.
U0190	Lost Communication With Digital Disc Player/Changer Module “D”	Check digital disc player/changer module “D” power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0191	Lost Communication With Television	Inspect the television module power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0192	Lost Communication With Personal Computer	Check the personal computer module power, grounds, communication wiring, and connectors, then repair the communication circuit or affected module.
U0193	Lost Communication With “Digital Audio Control Module A”	Inspect Digital Audio Control Module A power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0194	Lost Communication With “Digital Audio Control Module B”	Check Digital Audio Control Module B power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0195	Lost Communication With Subscription Entertainment Receiver Module	Inspect the subscription entertainment receiver power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0196	Lost Communication With Rear Seat Entertainment Control Module	Check the rear seat entertainment module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0197	Lost Communication With Telephone Control Module	Inspect the telephone control module power supply, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0198	Lost Communication With Telematic Control Module	Check the telematic control module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0199	Lost Communication With “Door Control Module A”	Inspect Door Control Module A power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0200	Lost Communication With “Door Control Module B”	Check Door Control Module B power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0201	Lost Communication With “Door Control Module C”	Inspect Door Control Module C power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0202	Lost Communication With “Door Control Module D”	Check Door Control Module D power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0203	Lost Communication With “Door Control Module E”	Inspect Door Control Module E power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0204	Lost Communication With “Door Control Module F”	Check Door Control Module F power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0205	Lost Communication With “Door Control Module G”	Inspect Door Control Module G power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0206	Lost Communication With Folding Top Control Module	Check the folding top control module power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0207	Lost Communication With Movable Roof Control Module	Inspect the movable roof control module power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0208	Lost Communication With “Seat Control Module A”	Check Seat Control Module A power, grounds, CAN wiring, and connectors, then repair the communication fault or faulty module.
U0209	Lost Communication With “Seat Control Module B”	Inspect Seat Control Module B power, grounds, CAN wiring, and connectors, then repair the communication circuit or faulty module.
U0210	Lost Communication With “Seat Control Module C”	Check CAN wiring, power and ground at Seat Control Module C. Repair damaged wiring or connectors and replace/program the module if necessary.
U0211	Lost Communication With “Seat Control Module D”	Inspect CAN communication lines, module power supply and ground. Repair wiring/connectors or replace and program the module if faulty.
U0212	Lost Communication With Steering Column Control Module	Check module power, ground and CAN connections. Repair wiring or connectors and reprogram/replace the module if communication cannot be restored.
U0213	Lost Communication With Mirror Control Module	Inspect mirror module power, ground and CAN wiring. Repair open/shorted circuits or replace the module if defective.
U0214	Lost Communication With Remote Function Actuation	Check the remote-function module, power supply, ground and CAN communication. Repair wiring or replace/program the module if required.
U0215	Lost Communication With “Door Switch A”	Inspect Door Switch A wiring, connector and communication circuit. Repair the circuit or replace the switch/module if necessary.
U0216	Lost Communication With “Door Switch B”	Check power, ground and CAN wiring to Door Switch B. Repair damaged wiring or replace the switch/module if faulty.
U0217	Lost Communication With “Door Switch C”	Inspect communication wiring and electrical connections. Repair open/short circuits and replace the switch if communication remains lost.
U0218	Lost Communication With “Door Switch D”	Check the switch connector, power, ground and CAN lines. Repair wiring or replace the defective switch/module.
U0219	Lost Communication With “Door Switch E”	Inspect CAN wiring and the switch circuit. Repair poor connections, wiring faults or replace the switch if needed.
U0220	Lost Communication With “Door Switch F”	Check power, ground and communication lines. Repair damaged wiring/connectors or replace the switch/module.
U0221	Lost Communication With “Door Switch G”	Inspect CAN communication, power supply and ground. Repair the circuit or replace/program the module if necessary.
U0222	Lost Communication With “Door Window Motor A”	Check window motor power, ground and communication wiring. Repair wiring or replace the motor/module if faulty.
U0223	Lost Communication With “Door Window Motor B”	Inspect the window motor connector, power and CAN circuit. Repair wiring or replace the motor if communication cannot be restored.
U0224	Lost Communication With “Door Window Motor C”	Check wiring, connectors, power and ground at the window motor. Repair the circuit or replace the motor/module.
U0225	Lost Communication With “Door Window Motor D”	Inspect CAN lines and motor electrical connections. Repair open/shorted circuits or replace the motor/module if required.
U0226	Lost Communication With “Door Window Motor E”	Check motor power, ground and communication wiring. Repair damaged wiring/connectors or replace the motor if defective.
U0227	Lost Communication With “Door Window Motor F”	Inspect the motor circuit and CAN communication. Repair wiring or connectors and replace the motor/module if necessary.
U0228	Lost Communication With “Door Window Motor G”	Check power, ground and CAN wiring to the motor. Repair communication faults or replace/program the module if needed.
U0229	Lost Communication With Heated Steering Wheel Module	Check the heated steering wheel module power, ground and CAN communication. Repair wiring or replace/program the module if faulty.
U0230	Lost Communication With Rear Gate Module	Inspect rear gate module power, ground and CAN wiring, especially wiring through the tailgate hinges. Repair damaged wiring or replace the module.
U0231	Lost Communication With Rain Sensing Module	Check the rain sensor/module connector, power, ground and communication circuit. Clean/reconnect the connector or replace and calibrate the sensor if necessary.
U0232	Lost Communication With Side Obstacle Detection Control Module	Inspect the side detection module, CAN wiring, power and ground. Repair wiring or replace/program the module if defective.
U0233	Lost Communication With Side Obstacle Detection Control Module	Check the second side-obstacle detection circuit/module and CAN communication. Repair wiring or replace/program the module as required.
U0234	Lost Communication With Convenience Recall Module	Check module power, ground and CAN communication. Repair wiring/connectors or replace and configure the module if faulty.
U0235	Lost Communication With Cruise Control Front Distance Range Sensor	Inspect the front radar/distance sensor power, ground and CAN wiring. Check sensor alignment and connector condition; replace and calibrate the sensor if defective.
U0300	Internal Control Module Software Incompatibility	Check for incorrect or incompatible module software/calibration. Update or reprogram the affected control module using the correct software.
U0301	Software Incompatibility with ECM/PCM	Verify ECM/PCM software version and vehicle configuration. Perform the required software update or reprogramming and clear the code.
U0302	Software Incompatibility with Transmission Control Module	Check TCM software and calibration against the vehicle configuration. Reprogram/update the TCM and perform required relearn procedures.
U0303	Software Incompatibility with Transfer Case Control Module	Verify the transfer case module software and configuration. Update or reprogram the module and perform calibration/relearn if required.
U0304	Software Incompatibility with Gear Shift Control Module	Check the gear shift module software and vehicle configuration. Update or reprogram the module with the correct software.
U0305	Software Incompatibility with Cruise Control Module	Check the cruise control module software version. Perform the correct software update or reprogramming if incompatible.
U0306	Software Incompatibility with Fuel Injector Control Module	Verify the injector control module software and calibration. Reprogram or update the module using the correct configuration.
U0307	Software Incompatibility with Glow Plug Control Module	Check the glow plug module software and vehicle configuration. Update or reprogram the module if necessary.
U0308	Software Incompatibility with Throttle Actuator Control Module	Verify throttle actuator module software and calibration. Reprogram the module and perform throttle relearn if required.
U0309	Software Incompatibility with Alternative Fuel Control Module	Check the alternative-fuel module software and configuration. Install the correct software or reprogram the module.
U0310	Software Incompatibility with Fuel Pump Control Module	Verify the fuel pump module software and calibration. Update/reprogram the module and check its configuration.
U0311	Software Incompatibility with Drive Motor Control Module	Check drive motor controller software and vehicle configuration. Update or reprogram the module with the correct calibration.
U0312	Software Incompatibility with Battery Energy Control Module A	Verify battery control module A software and configuration. Reprogram/update the module and perform required battery system calibration.
U0313	Software Incompatibility with Battery Energy Control Module B	Check battery control module B software. Update or reprogram the module and verify proper communication with other control units.
U0314	Software Incompatibility with Four-Wheel Drive Clutch Control Module	Check the 4WD clutch module software and configuration. Reprogram the module and perform the required 4WD calibration.
U0315	Software Incompatibility with Anti-Lock Brake System Control Module	Verify ABS module software and vehicle configuration. Update/reprogram the ABS module and perform calibration if required.
U0316	Software Incompatibility with Vehicle Dynamics Control Module	Check the vehicle dynamics module software. Install the correct calibration and perform required sensor/module relearn procedures.
U0317	Software Incompatibility with Park Brake Control Module	Verify the electronic parking brake module software and configuration. Reprogram the module and perform parking brake initialization if required.
U0318	Software Incompatibility with Brake System Control Module	Check brake control module software and configuration. Update/reprogram the module and perform the required brake system calibration.
U0319	Software Incompatibility with Steering Effort Control Module	Verify steering effort module software and calibration. Reprogram the module with the correct vehicle-specific software.
U0320	Software Incompatibility with Power Steering Control Module	Check the power steering module software and configuration. Update/reprogram the module and perform steering calibration if required.
U0321	Software Incompatibility with Ride Level Control Module	Verify ride-level module software and calibration. Reprogram the module and perform suspension/ride-height calibration.
U0322	Software Incompatibility with Body Control Module	Check BCM software and vehicle configuration. Update or reprogram the BCM with the correct configuration.
U0323	Software Incompatibility with Instrument Panel Control Module	Verify instrument cluster/module software. Update or reprogram the module and configure it to the vehicle if necessary.
U0324	Software Incompatibility with HVAC Control Module	Check HVAC module software and configuration. Perform the correct software update/reprogramming and HVAC calibration.
U0325	Software Incompatibility with Auxiliary Heater Control Module	Verify auxiliary heater module software. Update/reprogram the module and perform the required heater initialization.
U0326	Software Incompatibility with Vehicle Immobilizer Control Module	Check immobilizer module software and vehicle configuration. Reprogram the module using the correct security configuration.
U0327	Software Incompatibility with Vehicle Security Control Module	Verify the security module software and configuration. Update/reprogram the module and perform required security initialization.
U0328	Software Incompatibility with Steering Angle Sensor Module	Check steering angle sensor software and calibration. Reprogram if necessary and perform steering angle calibration.
U0329	Software Incompatibility with Steering Column Control Module	Verify steering column module software and configuration. Update/reprogram the module and perform required initialization.
U0330	Software Incompatibility with Tire Pressure Monitor Module	Check TPMS module software and vehicle configuration. Reprogram the module and relearn the tire pressure sensors if required.
U0331	Software Incompatibility with Body Control Module “A”	Verify BCM A software and configuration. Update or reprogram the module with the correct vehicle-specific calibration.
U0400	Invalid Data Received	Check CAN communication and determine which module is transmitting incorrect data. Inspect wiring, power and grounds, then update/reprogram or replace the affected module if necessary.
U0402	Invalid Data Received From Transmission Control Module	Check TCM power, ground and CAN communication. Verify TCM software/calibration and update or reprogram the TCM if incorrect data is being transmitted.
U0403	Invalid Data Received From Transfer Case Control Module	Check transfer case module power, ground and CAN wiring. Verify the module is sending correct data; update/reprogram or replace it if faulty.
U0404	Invalid Data Received From Gear Shift Control Module	Inspect gear shift module power, ground and CAN communication. Check for incorrect data and reprogram or replace the module if necessary.
U0405	Invalid Data Received From Cruise Control Module	Check cruise control module wiring, power and CAN communication. Verify software/calibration and reprogram the module if required.
U0406	Invalid Data Received From Fuel Injector Control Module	Inspect injector control module power, ground and CAN lines. Check software and module output data; reprogram or replace if defective.
U0407	Invalid Data Received From Glow Plug Control Module	Check glow plug module power, ground and communication wiring. Verify module data and software; reprogram or replace if necessary.
U0408	Invalid Data Received From Throttle Actuator Control Module	Inspect throttle actuator module wiring and CAN communication. Check throttle data and perform software update/reprogramming and throttle relearn if required.
U0409	Invalid Data Received From Alternative Fuel Control Module	Check alternative-fuel module power, ground and CAN connections. Verify configuration and reprogram or replace the module if incorrect data continues.
U0410	Invalid Data Received From Fuel Pump Control Module	Inspect fuel pump module power, ground and CAN wiring. Check pump controller data and reprogram/replace the module if faulty.
U0411	Invalid Data Received From Drive Motor Control Module	Check drive motor controller communication, power and ground. Verify software/calibration and repair or replace the controller if necessary.
U0412	Invalid Data Received From Battery Energy Control Module A	Inspect battery module A power, ground and CAN communication. Check battery management data and reprogram or replace the module if required.
U0413	Invalid Data Received From Battery Energy Control Module B	Check battery module B wiring, power, ground and communication. Verify software/configuration and reprogram or replace the module if faulty.
U0414	Invalid Data Received From Four-Wheel Drive Clutch Control Module	Inspect 4WD clutch module CAN wiring and power supply. Check module calibration and reprogram or replace it if incorrect data is detected.
U0415	Invalid Data Received From Anti-Lock Brake System Control Module	Check ABS module power, ground and CAN communication. Scan for additional ABS faults, then update/reprogram or replace the ABS module if necessary.
U0416	Invalid Data Received From Vehicle Dynamics Control Module	Inspect vehicle dynamics module communication and power supply. Check related sensors and software; repair, calibrate or reprogram the module.
U0417	Invalid Data Received From Park Brake Control Module	Check electronic parking brake module power, ground and CAN wiring. Verify module data and perform initialization/reprogramming if required.
U0418	Invalid Data Received From Brake System Control Module	Inspect brake control module communication, power and grounds. Check related brake system faults and reprogram/replace the module if needed.
U0419	Invalid Data Received From Steering Effort Control Module	Check steering effort module wiring and CAN communication. Verify steering data and software; reprogram or replace the module if faulty.
U0420	Invalid Data Received From Power Steering Control Module	Inspect power steering module power, ground and CAN lines. Check steering system data and perform calibration/reprogramming if required.
U0421	Invalid Data Received From Ride Level Control Module	Check ride-level module communication, wiring and power supply. Verify suspension sensor data and recalibrate/reprogram the module if necessary.
U0422	Invalid Data Received From Body Control Module	Inspect BCM power, grounds and CAN network. Check for other BCM communication faults and update/reprogram or replace the BCM if required.
U0423	Invalid Data Received From Instrument Panel Control Module	Check instrument panel module power, ground and CAN communication. Verify software and configuration; reprogram or replace the module if faulty.
U0424	Invalid Data Received From HVAC Control Module	Inspect HVAC module wiring, power, ground and CAN communication. Check sensor data and perform HVAC calibration/reprogramming if necessary.
U0425	Invalid Data Received From Auxiliary Heater Control Module	Check auxiliary heater module power, ground and CAN wiring. Verify heater data and software; repair, reprogram or replace the module if required.
U0426	Invalid Data Received From Vehicle Immobilizer Control Module	Inspect immobilizer module communication, power and ground. Verify security configuration and reprogram the module if incorrect data is being transmitted.
U0427	Invalid Data Received From Vehicle Security Control Module	Check security module power, ground and CAN wiring. Verify security configuration and reprogram or replace the module if necessary.
U0428	Invalid Data Received From Steering Angle Sensor Module	Inspect steering angle sensor wiring and CAN communication. Check sensor readings and perform steering angle calibration or replacement if required.
U0429	Invalid Data Received From Steering Column Control Module	Check steering column module power, ground and CAN lines. Verify switch/sensor data and reprogram or replace the module if faulty.
U0430	Invalid Data Received From Tire Pressure Monitor Module	Inspect TPMS module communication, power and ground. Check sensor data and perform TPMS relearn or module reprogramming if required.
U0431	Invalid Data Received From Body Control Module “A”	Check BCM A power, ground and CAN communication. Verify software/configuration and reprogram or replace the module if incorrect data remains.

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