Introduction
The LAUNCH X431 CRP919X is an advanced automotive diagnostic tool designed for comprehensive vehicle system analysis and maintenance. This device offers a wide range of functions, including ECU coding, bi-directional control, and over 35 reset services, making it suitable for both professional technicians and advanced DIY enthusiasts. It supports a vast array of vehicle models from 1996 to 2025, incorporating modern protocols like CAN FD and DoIP, and providing access to FCA SGW.

What's in the Box
Upon unboxing your LAUNCH X431 CRP919X, verify that all components are present:
- 2025 LAUNCH ELITE CRP919X OBD2 Scanner x 1
- OBD2 Diagnostic Cable x 1
- DC 5V Charging Cable x 1
- US/UK/EU Plug Adapter x 1
- Multilingual Quick Start Guide x 1

Setup and Initial Use
- Charging the Device: Connect the DC 5V Charging Cable to the scanner and a power outlet using the provided adapter. Ensure the device is fully charged before first use.
- Power On: Press and hold the power button to turn on the scanner.
- Wi-Fi Connection: Navigate to the settings menu and connect the device to a stable Wi-Fi network. This is crucial for software updates and online functions.
- Software Updates: After connecting to Wi-Fi, check for and install any available software updates to ensure optimal performance and access to the latest features and vehicle coverage.
- Connecting to Vehicle: Locate the vehicle's OBD2 port (usually under the dashboard). Connect the OBD2 Diagnostic Cable from the scanner to the vehicle's OBD2 port.
Operating Instructions
1. Full System Diagnostics
The CRP919X provides OE-level full system diagnostics, allowing you to scan all available electronic control units (ECUs) in the vehicle. This includes systems such as Engine, ABS, Airbag, Transmission, TPMS, and more. The tool can read and clear Diagnostic Trouble Codes (DTCs), display live data streams, and access ECU information.
- Auto VIN Scan: This feature automatically identifies the vehicle's VIN (Vehicle Identification Number) for quick and accurate vehicle identification. For older models without Auto VIN capability, manual selection is available.
- Read Codes: Retrieve current, pending, and permanent diagnostic trouble codes.
- Clear Codes: Erase DTCs from the vehicle's memory after repairs are completed.
- Live Data Stream: View real-time data parameters from various sensors and components. The 8-in-1 graphing feature allows for simultaneous display of multiple data streams for detailed analysis.


2. ECU Coding
The CRP919X supports advanced ECU coding, a feature typically found in professional OEM scanners. This allows for customization and modification of pre-programmed options within the vehicle's ECUs. Functions include:
- Uncovering Hidden Features: Activate features not enabled at the factory.
- Disabling Unwanted Functions: Turn off features like seatbelt reminder chimes or daytime running lights.
- Coding Retrofitted Components: Integrate new components into the vehicle's system.
- Variant Coding (Offline Programming): Program specific variants or options in ECUs.
- Adaptive Data Resets: Reset learned values for various components.
- Component Matching: Match new modules (e.g., ECM, TCM) to the vehicle.
Caution: Always back up the ECU data before performing any coding operations.


3. Bi-directional Control (Active Tests)
This function allows the scanner to send commands to vehicle ECUs to perform specific tests and verify component functionality. This significantly reduces diagnostic time by pinpointing faulty components without disassembly.
Common active tests include:
- Adaptive Headlamp Adjustment
- A/C Configuration
- Window Wipers operation
- Doors and Sunroof operation
- Mirrors and Interior Lights control
- Wheel Heating activation
- Horn Assessment
- ABS Pump Motor activation
- Modulating Throttle
- Injector Buzz Test
- Radiator Fan activation


4. Special Functions (35+ Reset Services)
The CRP919X provides access to over 35 commonly used maintenance and reset functions, covering a wide range of vehicle services:
- Oil Maintenance Reset
- Injector Coding
- EPB (Electronic Park Brake) Reset
- ABS Bleeding
- SAS (Steering Angle Sensor) Calibration
- Throttle Relearn
- BMS (Battery Management System) Reset
- DPF (Diesel Particulate Filter) Regeneration
- Airbag Repair
- TPMS (Tire Pressure Monitoring System) Reset
- Air/Fuel Reset
- AdBlue Reset
- AFS (Adaptive Front-Lighting System) Reset
- NOX Sensor Reset
- Tire Reset
- Transport Mode
- Air Level Calibration
- Windows Calibration
- CCS (Cruise Control System) Calibration
- Seat Occupancy Calibration
- Sunroof Initialization
- AC Initialization
- Crankshaft Position Sensor Adaptive Relearn
- Gearbox Matching
- Power Balance
- High Voltage Battery Detection
- Language Change
- FRM Reset
- EVAP Test
- Seat Standardization
- A/T Code Reset
- VIN Registration (Write)
- Reset Control Unit
- EGR Adaptation (New)
- GPF (Gas Particular Filter) Regeneration (New)
- Cylinder Power Balance Test (New)


5. Advanced Protocol Support
- CAN FD: Supports GM models from 2019 and later, eliminating the need for separate CAN FD adapters and offering 6X faster data transfer rates.
- DoIP: Integrates with BMW (F&G chassis), Volvo (2018+), Land Rover, and Jaguar (2017+) models, enabling higher data rates via UDS over TCP/IP and Ethernet.
- FCA AutoAuth SGW: Provides access to FCA vehicles (Chrysler, Jeep, Dodge, Fiat, etc.) produced after 2017 for code clearance, bi-directional control, and special functions. Note: An AutoAuth account must be procured independently.

6. Extended Modules (Optional)
The CRP919X can be expanded with optional modules for enhanced diagnostic capabilities:
- Battery Tester (BST360): For efficient battery and electrical system health assessments.
- TPMS (X431 TSGUN): For sensor activation, programming, and relearning.
Note: These add-on tools (BST360/X431 TSGUN) are available for separate purchase.
7. Diagnostic Report Sharing & Printing
Upon completion of a scan, the CRP919X generates a comprehensive diagnostic report in PDF format. This report can be easily shared via email or printed, facilitating communication between mechanics and clients.

Maintenance
- Software Updates: Regularly connect the device to Wi-Fi and check for software updates. These updates provide new features, expanded vehicle coverage, and performance improvements.
- Cleaning: Use a soft, damp cloth to clean the device. Avoid abrasive cleaners or solvents.
- Storage: Store the scanner in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery Care: For optimal battery life, avoid fully discharging the battery frequently. Charge the device regularly, especially if it will be stored for an extended period.
Troubleshooting
This section addresses common issues you might encounter with your LAUNCH X431 CRP919X.
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low battery; Power button not held long enough; Device malfunction. | Charge the device for at least 30 minutes. Press and hold the power button for 3-5 seconds. If issue persists, contact customer support. |
| Unable to connect to vehicle. | OBD2 cable not securely connected; Vehicle ignition off; Vehicle not supported; Faulty OBD2 port. | Ensure cable is firmly connected. Turn vehicle ignition to ON position (engine off). Verify vehicle compatibility. Test with another vehicle if possible. |
| Software update fails. | Unstable Wi-Fi connection; Insufficient storage; Server issues. | Ensure strong Wi-Fi signal. Clear some data/apps if storage is low. Try updating again later. |
| Specific function not working (e.g., ECU Coding). | Vehicle not supported for that function; Software not updated; Incorrect procedure. | Verify vehicle compatibility for the specific function. Ensure software is up to date. Refer to the on-screen instructions or contact support for detailed procedures. |
For issues not listed here or if solutions do not resolve the problem, please refer to the support section.
Specifications
| Feature | Detail |
|---|---|
| Brand | LAUNCH |
| Model | LAUNCH CRP919X |
| Operating System | Android 10.0 |
| Display Resolution | 1024x600 |
| Item Weight | 6.27 pounds |
| Product Dimensions | 12.8 x 11.14 x 5.31 inches |
| Battery Capacity | 6100mAh (approx. 12 hours continuous operation) |
| RAM | 4GB |
| ROM | 64GB |
| Connectivity | Dual 2.4G & 5GHz WiFi, 5G WiFi communication |
| Supported Protocols | CAN FD, DoIP, OBD2 (all 10 modes) |
| Vehicle Coverage | 150+ brands, 100,000+ models (1996-2025) |
Warranty and Support
LAUNCH is committed to providing high-quality products and excellent customer service.
- Free Updates: Benefit from 2 years of free software updates from the date of purchase (since September 2022).
- Quality Undertaking: The product comes with a 5-Year Quality Undertaking.
- Return & Replacement: A 60-Day Return & Replacement policy is available.
- Post-sale Service: 24/7 post-sale service is provided.
- Online Feedback: You can submit diagnostic queries online to LAUNCH for expert analysis and troubleshooting.
- Remote Assistance: The device supports remote assistance via TeamViewer for swift issue resolution.
For further assistance, please refer to the official LAUNCH support channels or the contact information provided in your quick start guide.





