1. Introduction
The LAUNCH X431 CRP123E V3.0 and CRP123I V3.0 are advanced OBD2 diagnostic scanners designed for car owners and DIY enthusiasts. These tools provide comprehensive diagnostics for key vehicle systems, offering a range of reset services and full OBD2 functions. The CRP123E V3.0 features a full touchscreen interface, while the CRP123I V3.0 combines buttons with a touchscreen for navigation.

Model Differences: CRP123E V3.0 vs. CRP123I V3.0

2. Setup
2.1 Package Contents
Before starting, ensure all items are present in your package:
- CRP123E or CRP123I Unit (depending on model)
- Carrying Bag
- OBDII Cable
- Charging Cable
- User Manual

2.2 Initial Power On and Charging
- Connect the charging cable to the device and a suitable power source to ensure the device is fully charged before first use.
- Press and hold the power button to turn on the device.
- Follow the on-screen prompts for initial setup, including language selection and Wi-Fi connection.
2.3 Software Update
The device supports lifetime free updates via Wi-Fi. It is recommended to update the software regularly to ensure compatibility with the latest vehicle models and diagnostic features.
- Ensure the device is connected to a stable Wi-Fi network.
- Navigate to the 'Software Update' or 'Upgrade' section on the main menu.
- Follow the on-screen instructions to download and install available updates.
3. Operation
3.1 Connecting to Vehicle
- Locate the vehicle's OBD-II port (usually under the dashboard on the driver's side).
- Connect the OBDII cable from the scanner to the vehicle's OBD-II port.
- Turn the vehicle's ignition to the 'ON' position (engine can be off or running, depending on the test).
3.2 Auto-VIN Smart Diagnostic
The Auto-VIN technology automatically identifies your vehicle's make, model, and year, streamlining the diagnostic process. After successful VIN acquisition, the system will proceed to scan vehicle systems and generate a diagnostic report.

3.3 4-System Diagnostic
The scanner provides in-depth diagnostics for the following four core vehicle systems:
- Engine System: Reads and clears Diagnostic Trouble Codes (DTCs), views live data streams to pinpoint engine problems, and turns off warning lights.
- Transmission System: Checks the transmission system by reading codes and live data to ensure proper power delivery to the wheels.
- Anti-lock Braking System (ABS): Accesses the ABS system to view live data, retrieve fault codes, and troubleshoot issues causing the ABS warning light.
- Supplemental Restraint System (SRS/Airbag): Detects electronic parameters in the SRS system to check health status, address potential issues, and turn off the airbag warning light.

3.4 7 Hot Reset Services
The device offers 7 commonly used reset services for routine maintenance (lifetime free):
- Oil Lamp Reset: Resets the Oil Life Reminder and switches off the Oil Light after an oil change.
- EPB Reset (Electronic Parking Brake): Resets the electronic parking brake system after brake pad replacement or service.
- Steering Angle Calibration (SAS Reset): Calibrates the steering angle sensor after replacement or repair, clearing fault memories and turning off warning lights.
- Battery Matching (BMS Reset): Performs a resetting operation on the vehicle battery's monitoring unit after battery replacement.
- ABS Bleeding: Bleeds air from the brake fluid pipeline when changing brake fluid, simplifying the process.
- Diesel Particulate Filter (DPF) Regeneration: Clears PM from the DPF filter through continuous combustion oxidation.
- Throttle Relearn (ELEC.THROTTLE RLR): Makes initial settings to throttle actuators for smooth driving after throttle body replacement or cleaning.

3.5 Full OBD2 Functions (10 Test Modes)
The scanner supports all 10 OBD-II test modes for comprehensive engine system diagnostics:
- Reading Codes: Displays detailed descriptions of Diagnostic Trouble Codes (DTCs).
- Erasing Codes & Reset: Turns off the Check Engine Light (MIL), clears codes, and resets monitors.
- Data Stream: Reads and displays live ECU/PCM data streams, with graphical plotting and freeze frame data storage.
- I/M Readiness Status: Shows if emissions-related systems are operating correctly and ready for testing.
- Read Live Data Stream: Displays continuous data stream from a vehicle in live graphic (waveform) format.
- View Freeze Frame Data: Checks vehicle conditions recorded by the on-board computer when an emission-related fault occurs.
- O2 Sensor Test: Retrieves and displays O2 sensor monitor test results.
- On-Board Monitor Test: Retrieves and displays test results for emission-related powertrain components.
- Read Vehicle Information: Displays VIN, CID, and CVN.
- Component Test: Actuates certain vehicle components via commands from the scanner to test operability.

3.6 Additional Features
- Live Data on Graph: Visualize real-time data streams for easier analysis.
- Display Real-Time Battery Voltage: Monitors vehicle battery health.
- Screenshot & Email Share: Capture diagnostic screens and share reports via email.
- Data Recording and Playback: Record diagnostic sessions for later review.
- Diagnostic Feedback: Send feedback to LAUNCH for support.
- DTC Lookup: Built-in library for quick definition of trouble codes.
- Multi-Language Support: Supports 11 languages including English, Spanish, French, German, Italian, Russian, Japanese, Korean, Polish, and Portuguese.

4. Maintenance
4.1 Software Updates
Regular software updates are crucial for maintaining optimal performance and compatibility. Connect to Wi-Fi and check for updates periodically through the device's 'Upgrade' menu.
4.2 Cleaning and Storage
- Clean the device with a soft, damp cloth. Avoid harsh chemicals.
- Store the scanner in its carrying bag in a cool, dry place when not in use.
- Protect the screen from scratches and impacts.
4.3 Battery Care
To prolong battery life, avoid fully discharging the device frequently. Charge it regularly, especially if storing for extended periods.
5. Troubleshooting
Common Issues and Solutions:
- Device not powering on: Ensure the battery is charged or connected to a power source. Check the charging cable and adapter.
- Connection issues with vehicle: Verify the OBDII cable is securely connected to both the scanner and the vehicle's OBD-II port. Ensure the vehicle's ignition is on.
- Unable to read VIN or connect to ECU: For vehicles not supporting Auto VIN, manually enter the VIN. Ensure the vehicle is OBD-II compliant.
- Diagnostic functions not working for specific car models: Some advanced functions or reset services may not be universally supported across all car models. Refer to the vehicle compatibility list or contact support.
- Error clearing fault codes: Often, fault codes cannot be cleared until the underlying mechanical or electrical issue in the vehicle has been repaired.
Important Tip: If the scan tool cannot work on your car or for specific functions, please contact customer support with your car details: make/model/year and VIN information for assistance.
6. Specifications
6.1 Main Unit Parameters
| Feature | Specification |
|---|---|
| Screen Size | 5-inch, 1280*720P |
| Android Version | Android 8.1 |
| Battery Capacity | 3.7V/6000mAh |
| RAM | 2GB |
| Storage | 32GB (System shows 25.9GB) |
| CPU | 1.3GHz Quad-Core |
| Wi-Fi | Yes |
| Bluetooth | No |
| Update Method | Online Update (Lifetime Free) |
| Main Cable Interface | DB15 (Dual Row) → OBDII 16PIN |
| OBD II Interface Input Voltage | 9V~18V |

6.2 Vehicle Coverage & Protocols
- Supported Car Brands: 57+ car brands, 10000+ vehicle models, covering Asia, Europe, and USA.
- Supported Protocols: EOBD/OBDII / KOBD/JOBD.
- CAN FD Protocols: Supports (may require purchasing a CANFD cable).
- DOIP Protocols: Supports (may require purchasing a DOIP cable).

7. User Tips
- Vehicle Compatibility: Always verify that specific functions (e.g., CVT learning for Mitsubishi Outlander 2.0 2016) are supported for your vehicle model before attempting advanced operations. If unsure, contact support.
- Power Supply: The CRP123E/CRP123I only supports 12V cars and is not compatible with 24V trucks. Using it with incompatible voltage may damage the device.
- Optional Functions: The device features an 'Online Mall' where additional reset functions (e.g., 19 Reset Functions) and full system diagnostics for specific car brands can be purchased to expand its capabilities.

8. Warranty & Support
8.1 Warranty
This product comes with a 5-year warranty, ensuring peace of mind for your investment.
8.2 Lifetime Free Updates
Enjoy lifetime free software updates via Wi-Fi, keeping your diagnostic tool current with the latest vehicle data and features.
8.3 Technical Support
For any technical inquiries, troubleshooting assistance, or compatibility questions, please refer to the contact information provided in your product packaging or on the official LAUNCH website. When contacting support, have your device's serial number, vehicle make/model/year, and a detailed description of the issue ready.





