Launch CRP129 HD Professional Truck Diagnostic Scanner – Full-System 24V Diagnostics, 7 Service Functions, AutoVIN, and Support for 52+ Heavy-Duty Brands
The Launch CRP129 HD is a professional heavy-duty diagnostic tool engineered for 24 V trucks, buses, vans, construction machinery, and agricultural vehicles. Designed for technicians, fleet operators, and logistics workshops, it provides comprehensive system diagnostics, real-time data analysis, and essential service functions — all within a compact, durable handheld device.
Powered by Android 8.1 and a quad-core 1.3 GHz processor, the CRP129 HD delivers fast, stable performance with a bright 4-inch LCD touchscreen, intuitive navigation, and integrated Wi-Fi connectivity for easy updates.
Covering 52 + global truck brands and over 10,000 vehicle models, this scanner supports full-system diagnosis, including engine, transmission, ABS, ESP, and AdBlue systems. Whether maintaining large fleets or performing on-site repairs, the CRP129 HD ensures precision, reliability, and efficiency.

























⚙️ Key Features and Advantages
✅ Full-System Diagnostics – access every electronic module (engine, transmission, ABS, ESP, AdBlue, A/C, BCM, etc.)
✅ 7 Service & Maintenance Functions – DPF regeneration, oil reset, injector coding, clutch learning, cylinder deactivation, DEF system tests, and more
✅ AutoVIN & AutoScan – automatically identifies vehicle make, model, and VIN in seconds
✅ Supports 52 + Heavy-Duty Brands – including Cummins, Volvo, Isuzu, Hino, Caterpillar, Detroit, MAN, Scania, and Paccar
✅ Supports Major Protocols – SAE J1939, J1708, J1850, ISO9141, and ISO15765
✅ 2 Years of Free Updates – keep your software current via Wi-Fi
✅ 4-inch Colour Touchscreen (800 × 480) – clear and compact for mobile or workshop use
✅ Portable Design (< 500 g) – ideal for fieldwork and on-site diagnostics
The CRP129 HD is the perfect companion for mechanics, transport service providers, and fleet maintenance centres, offering OE-level diagnostic power in a lightweight, affordable device.
🧠 Full-System Diagnostics
Unlike basic OBD readers, the Launch CRP129 HD provides complete diagnostic coverage of all vehicle systems:
Engine System (ECM): read and clear trouble codes, view live parameters, monitor injection, turbo pressure, and temperature sensors.
Transmission: access TCM data for shift timing, clutch engagement, and temperature control.
ABS & ESP Systems: monitor brake balance, wheel-speed sensors, and stability-control data.
AdBlue / DEF Systems: diagnose urea injection faults and NOx sensor errors.
BCM / Instrument Cluster: view and calibrate dashboard warning lights, mileage, and system communication.
HVAC / A/C: check compressor and climate-control status.
Each scan can display real-time data (numeric or graphical), store diagnostic reports, and export them via USB or Wi-Fi for workshop documentation.
🛠️ 7 Essential Service Functions
The CRP129 HD includes seven professional service resets, enabling fast maintenance on a wide range of heavy-duty engines and systems.
1️⃣ DPF Regeneration
Performs regeneration of diesel particulate filters for cleaner exhaust and optimal engine efficiency.
Supports 10 + engine types including Cummins, Volvo, Hino, Isuzu, and Caterpillar.
Allows forced, automatic, or manual regeneration depending on vehicle type.
2️⃣ Oil Service Reset
Resets service intervals and oil-life indicators after maintenance or oil replacement.
3️⃣ Injector Coding
Calibrates new fuel injectors after installation for improved performance and lower emissions.
Ensures proper fuel delivery and idle stability.
4️⃣ Clutch Learning / Adaptation
Recalibrates clutch and TCU parameters after gearbox or clutch replacement.
Enables smoother gear shifts and accurate torque transmission.
5️⃣ Cylinder Deactivation / Compression Test
Allows selective cylinder deactivation to locate misfires and measure compression efficiency.
Helps identify faulty injectors or low-compression cylinders.
6️⃣ Speed Limiter Reset
Modifies or removes speed limit settings based on operational conditions and fleet requirements.
7️⃣ Urea / DEF System Service
Monitors and tests the AdBlue injection process for effective NOx emission reduction.
Includes reset and learning options for DEF level sensors and dosing modules.
🔧 Note: Function availability varies depending on make, model, and engine system.
📊 Live Data, Graphs & Reporting
The CRP129 HD allows in-depth monitoring and analysis of live data:
4-in-1 Real-Time Data View – monitor up to four parameters simultaneously.
Graphical Display – analyse performance trends such as boost pressure, temperature, and RPM.
Record & Replay – save diagnostic sessions and replay data for comparative analysis.
Automatic Health Reports – export or print results directly from the tool.
Integrated DTC Library – includes built-in fault-code definitions and direct Google search link for extended details.
This combination of data visualisation and reporting helps mechanics diagnose issues quickly and present clear service results to clients.
🌍 Supported Vehicles, Engines & Protocols
The Launch CRP129 HD supports over 52 global brands across trucks, buses, machinery, and agricultural vehicles from 1996–2024.
✅ Supported Manufacturers (Examples):
European: Volvo, MAN, Scania, Iveco, DAF, Mercedes-Benz, Renault Trucks
American: Cummins, Detroit Diesel, Paccar, Navistar, Caterpillar
Asian: Hino, Isuzu, Fuso, Hyundai, UD Trucks, Nissan Diesel
Agricultural / Construction: Perkins, Deutz, Kubota, John Deere, Komatsu
⚙️ Supported Engine Types:
Cummins • Caterpillar • Detroit Diesel • Volvo • Hino • Isuzu • Perkins • Paccar • MaxxForce • Fuso • Weichai • Yuchai • FAW • Dongfeng and many others.
🧩 Supported Communication Protocols:
SAE J1939 – standard for heavy-duty CAN networks
SAE J1708 / J1587 – legacy truck communication protocols
J1850 VPW & PWM – American vehicles
ISO9141 & ISO15765 – European and Asian compatibility
⚡ Technical Specifications
| Parameter | Specification |
|---|---|
| Operating System | Android 8.1 |
| Processor | Quad-Core 1.3 GHz |
| Display | 4″ LCD Touchscreen (800 × 480) |
| Battery | 3,000 mAh Lithium-Ion |
| Memory | 2 GB RAM + 16 GB ROM |
| Connectivity | Wi-Fi 2.4 GHz |
| Protocols | SAE J1939, J1708, J1850, ISO9141, ISO15765 |
| Weight | < 500 g |
| Dimensions | 212 × 120 × 34 mm |
| Operating Temperature | 0°C – 50°C |
| Storage Temperature | -20°C – 70°C |
📦 Package Contents
1 × Launch CRP129 HD Diagnostic Scanner
1 × Main OBD Diagnostic Cable
1 × CAT 9-Pin Adapter
1 × OBD 6-Pin Adapter
1 × OBD 9-Pin Type II Adapter
1 × Quick Start Guide
1 × User Manual
1 × Protective Packaging / Box
🏁 Why Choose Launch CRP129 HD
Professional-grade diagnostics for 24 V trucks, buses, and machinery.
Full-system coverage with real-time data and component tests.
Seven essential maintenance functions for complete service capability.
Compact, portable, and durable design – ideal for mobile technicians.
2 years of free software updates and lifetime basic functionality.
Backed by Launch’s trusted diagnostic technology and support network.
