Launch X431 V+ 4.0 Bi-bidirectional Diagnostic Tool Support Topology Mapping, ECU Coding, 41+ Services, AutoAuth FCA SGW

The Launch X431 V+ 4.0 is a professional automotive diagnostic scanner designed for workshops, mechanics, and automotive technicians. It provides OE-level full-system diagnostics, bi-directional control, ECU coding, Topology Mapping, AutoVIN, 41+ service functions, and advanced diagnostic capabilities for a wide range of vehicles.

Yes. The X431 V+ 4.0 provides OE-level diagnostics for supported vehicle systems, including Engine, Transmission, ABS, SRS/Airbag, BCM, TPMS, SAS, EPB, HVAC, and many other electronic control modules. Technicians can read and clear fault codes, view live data, retrieve ECU information, and perform additional module-specific diagnostic functions.

Yes. The X431 V+ 4.0 supports bi-directional control, also known as Active Tests. This allows the diagnostic tool to send commands directly to supported vehicle control modules and components to verify whether they are operating correctly.

Available Active Tests depend on the vehicle and control module. Typical examples can include activating injectors, fuel pumps, cooling fans, relays, solenoids, windows, doors, lights, wipers, A/C components, and other electronic actuators. This can help technicians identify faulty components more efficiently.

Yes. The X431 V+ 4.0 supports Topology Mapping with compatible and updated diagnostic software. This feature provides a visual overview of the vehicle’s control module network, making it easier to identify modules with faults and understand communication relationships between different ECUs.

Topology Mapping allows technicians to see the vehicle’s electronic control units and their communication structure on one screen. Modules are displayed with different status indicators, making it easier to quickly locate systems containing DTCs, identify communication problems, and enter individual modules for further diagnosis.

Yes. The X431 V+ 4.0 supports advanced ECU Coding functions for compatible vehicles. Depending on the manufacturer and model, ECU Coding can be used after module or component replacement, for matching and adaptation, personalization, configuration changes, and activation of supported vehicle functions.

Yes. Online coding is available for selected supported manufacturers. Depending on the vehicle and current software coverage, this can include brands such as Volkswagen, Audi, Mercedes-Benz, BMW, SEAT, Porsche, and others. Available online functions vary by model, year, ECU, and regional software support.

Yes. The X431 V+ 4.0 supports AutoAuth access for FCA vehicles equipped with a Secure Gateway Module (SGW). With the appropriate AutoAuth account and supported software, technicians can perform authorized diagnostics, Active Tests, calibrations, and other supported functions without using a physical SGW bypass cable. Additional AutoAuth registration or subscription fees may apply.

The X431 V+ 4.0 supports 41+ service and maintenance functions. The exact number and availability of functions depend on the vehicle manufacturer, model, model year, and installed control systems.

The X431 V+ 4.0 supports 41+ service and maintenance functions. The exact number and availability of functions depend on the vehicle manufacturer, model, model year, and installed control systems.

Yes. The X431 V+ 4.0 supports AutoVIN and intelligent vehicle identification on compatible vehicles. Once connected, the scanner can automatically retrieve the VIN and identify the vehicle, helping technicians access the correct diagnostic software more quickly.

Yes. Guided Functions are available for supported Volkswagen, Audi, Skoda, and SEAT vehicles. The software can guide the technician through selected diagnostic, coding, adaptation, and service procedures step by step, which can simplify complex workshop operations.

Yes. Component matching, adaptation, initialization, and relearn functions are available for many supported vehicles. These functions can be particularly useful after replacing electronic modules, sensors, actuators, or other components that need to be recognized or configured by the vehicle.

For supported vehicles, the X431 V+ 4.0 provides coding and personalization functions that may allow technicians to configure or activate certain factory-supported features. Availability depends heavily on the vehicle manufacturer, model, ECU, and software version, so hidden-function support should always be verified for the specific vehicle.

The X431 V+ 4.0 provides basic key programming and immobilizer-related functions on supported vehicles. For more advanced IMMO and key programming capabilities, compatible Launch accessories such as X-PROG3 may be required. Exact functionality varies significantly between vehicle manufacturers and models.

Yes. One of the advantages of the X431 V+ platform is its expandability. Depending on compatibility and software support, it can work with optional Launch accessories for functions such as key programming, battery testing, TPMS service, videoscope inspection, ADAS calibration, and other professional workshop applications. Optional accessories are generally sold separately.

Yes. The X431 V+ 4.0 supports online software updates, allowing users to download newer vehicle software, additional coverage, and function improvements. The package is commonly supplied with a period of free updates, after which a paid renewal may be required to continue receiving the latest software. Certain online functions may also require an active subscription.

The X431 V+ 4.0 is primarily designed for professional automotive workshops, mechanics, diagnostic technicians, auto electricians, dealerships, and advanced automotive specialists. Its combination of OE-level diagnostics, Active Tests, ECU Coding, Topology Mapping, service functions, and optional expansion capabilities makes it suitable for demanding everyday workshop use.

The Launch X431 V+ 4.0 combines OE-level full-system diagnostics, bi-directional Active Tests, Topology Mapping, ECU Coding, AutoAuth FCA SGW access, AutoVIN, 41+ service functions, Guided Functions, and extensive vehicle coverage in one professional diagnostic platform. It is a versatile solution for workshops that need more than basic fault-code diagnostics and want advanced troubleshooting, coding, maintenance, and vehicle configuration capabilities.