1. Introduction
The Jexiwe V419 OBD2 Scanner Code Reader is a powerful and user-friendly diagnostic tool designed to help you quickly identify and resolve engine-related issues in your vehicle. This device supports full OBD2 modes, allowing you to read and erase fault codes, view live data streams, perform I/M readiness tests, and more. It is a plug-and-play device that requires no external battery, drawing power directly from your vehicle's OBD-II port.

2. Safety Information
Please read and understand all safety instructions before using this device. Failure to do so may result in injury or damage to the vehicle or the scanner.
- Always perform automotive testing in a safe environment.
- Do not attempt to operate the scanner while driving.
- Keep clothing, hair, hands, tools, test equipment, etc., away from all moving or hot engine parts.
- Wear eye protection that meets ANSI standards.
- The vehicle's exhaust contains poisonous carbon monoxide. To prevent injury from carbon monoxide, operate the vehicle in a well-ventilated area.
- Put the transmission in PARK (for automatic transmission) or NEUTRAL (for manual transmission) and make sure the parking brake is engaged.
- Place blocks in front of the drive wheels and never leave the vehicle unattended while testing.
- Be extremely cautious when working around the ignition coil, distributor cap, ignition wires, and spark plugs. These components create hazardous voltages when the engine is running.
- A fire extinguisher suitable for gasoline/chemical/electrical fires should be present.

WARNING:
- This product does not support ABS, SRS, TPMS detection.
- For diesel vehicles, please check whether the following protocols are supported, otherwise this product cannot be used. Some older fuel vehicles from certain years may also fail to comply with the OBD2 protocol.
3. Product Overview
The Jexiwe V419 is a compact and robust OBD2 scanner designed for ease of use. It features a clear display and intuitive button layout for navigation through diagnostic menus.
Key Features:
- Full OBD2 Modes support
- DTC (Diagnostic Trouble Code) Lookup
- Read and Clear Fault Codes
- Live Data Stream display
- Battery Voltage Test
- I/M Readiness Test (Smog Check)
- O2 Sensor Test
- On-board Monitor Test
- Vehicle Information retrieval
- EVAP System Test
- No battery required (powered by vehicle)


4. Specifications
| Feature | Description |
|---|---|
| Brand Name | Jexiwe |
| Model | V419 |
| Item Type | Code Readers & Scan Tools |
| Communication Interface | OBD-II |
| Origin | Mainland China |
| Dimensions (L x W) | 15 cm (5.9 inches) x 7 cm (2.7 inches) |
| Weight | 0.215 kg |
| Supported Protocols |
|
| Supported Languages | English, German, French, Dutch, Italian, Spanish, Russian, Chinese, Japanese, Portuguese, Korean, Finnish, Polish (13 languages) |


5. Setup
The Jexiwe V419 is designed for simple plug-and-play operation. No complex setup or battery installation is required.
- Locate your vehicle's 16-pin Data Link Connector (DLC). This is usually located under the dashboard on the driver's side.
- Turn off the vehicle's ignition.
- Firmly plug the scanner's OBD-II connector into the vehicle's DLC port.
- Turn the vehicle's ignition to the 'ON' position (engine can be off or running, depending on the test). The scanner will automatically power on and display the main menu.
6. Operating Instructions
Navigate the scanner's menu using the directional arrows (UP/DOWN) and the 'OK' button. 'EXIT' returns to the previous menu.
6.1. Read Codes
This function retrieves Diagnostic Trouble Codes (DTCs) from the vehicle's computer. These codes indicate specific issues detected by the vehicle's onboard diagnostic system.
- From the main menu, select 'Read Codes' and press 'OK'.
- The scanner will communicate with the vehicle and display any stored DTCs.
- Use the UP/DOWN arrows to scroll through multiple codes if present.
6.2. Erase Codes
This function clears all DTCs from the vehicle's computer and turns off the Malfunction Indicator Lamp (MIL), also known as the 'Check Engine Light'.
- From the main menu, select 'Erase Codes' and press 'OK'.
- Confirm your choice when prompted.
- The scanner will clear the codes. Note that if the underlying issue is not resolved, the codes may reappear.

6.3. View Freeze Frame
Freeze Frame Data is a snapshot of critical sensor values recorded by the vehicle's computer at the moment a fault code was set. This data can help in diagnosing intermittent problems.
- From the main menu, select 'View Freeze Frame' and press 'OK'.
- The scanner will display the recorded data.
6.4. I/M Readiness Test
The I/M (Inspection/Maintenance) Readiness function is used to check the status of the vehicle's emission-related monitoring systems. This is crucial for annual smog checks.
- From the main menu, select 'I/M Readiness' and press 'OK'.
- The scanner will display the status of various monitors (e.g., O2 Sensor Monitor, EVAP System Monitor).
- Statuses include 'OK' (monitor complete), 'INC' (incomplete), or 'N/A' (not applicable).

6.5. Live Data Stream
This function displays real-time operational parameters from the vehicle's sensors and components, such as engine RPM, vehicle speed, coolant temperature, and more.
- From the main menu, select 'Live Data' and press 'OK'.
- The scanner will display a list of available data parameters.
- Select the desired parameters to view their real-time values.

6.6. O2 Sensor Test
This function retrieves O2 sensor monitoring test results for the most recently completed tests from the vehicle's onboard computer.
6.7. On-board Monitor Test
This function retrieves test results for emission-related powertrain components and systems that are not continuously monitored.
6.8. Vehicle Information
This function allows you to retrieve the Vehicle Identification Number (VIN), Calibration ID (CALID), and Calibration Verification Number (CVN) of the vehicle.
6.9. EVAP System Test
This function initiates a leak test for the vehicle's Evaporative Emission Control System (EVAP).
6.10. Battery Voltage Test
The scanner can display the current voltage of your vehicle's battery, providing a quick check of its health.
7. Compatibility
The Jexiwe V419 OBD2 Scanner is widely compatible with most OBDII-compliant vehicles.
- US-based vehicles: Generally compatible with cars manufactured after 1996.
- EU-based vehicles: Generally compatible with cars manufactured after 2000.
- Asian-based vehicles: Generally compatible with cars manufactured after 2008.
- Supports 12V cars, SUVs, and light trucks.
Important Compatibility Notes:
- This product does NOT support ABS (Anti-lock Braking System), SRS (Supplemental Restraint System), or TPMS (Tire Pressure Monitoring System) detection.
- For diesel vehicles, it is essential to verify if the vehicle supports the specific OBD2 protocols listed in the specifications section (Section 4). Some older fuel vehicles may also not be fully compliant with the OBD2 protocol.

8. Troubleshooting
If you encounter issues while using your Jexiwe V419 scanner, try the following steps:
- No Power: Ensure the scanner is firmly plugged into the vehicle's OBD-II port. Check the vehicle's ignition status (should be 'ON'). Verify the vehicle's battery has sufficient charge.
- Link Error: If the scanner displays a 'Link Error' message, ensure the ignition is 'ON', the connector is secure, and the vehicle is OBDII compliant. Try turning the ignition off, waiting 10 seconds, and then turning it back on before reconnecting the scanner.
- Codes Not Clearing: If codes do not clear after using the 'Erase Codes' function, it indicates that the underlying fault has not been resolved, or the vehicle's ECU has not completed its self-tests. Address the root cause of the fault.
- Slow Response: Ensure the vehicle's battery voltage is adequate. A low battery can sometimes affect communication speed.
- Incorrect Data: Verify that the vehicle is fully warmed up and operating normally for accurate live data readings.
If problems persist, consult a qualified automotive technician or contact customer support.
9. Maintenance
To ensure the longevity and optimal performance of your Jexiwe V419 OBD2 Scanner, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the scanner's exterior. Do not use abrasive cleaners or solvents.
- Storage: Store the scanner in a clean, dry environment, away from extreme temperatures, direct sunlight, and excessive moisture.
- Cable Care: Avoid bending or twisting the OBD-II cable excessively. Do not pull the cable to disconnect the scanner; always grasp the connector itself.
- Software Updates: While this model is generally plug-and-play, check the manufacturer's website periodically for any available firmware updates that might enhance functionality or compatibility.
10. User Tips
- DTC Lookup: When a code is displayed, use the scanner's built-in DTC lookup feature to get a brief description of the code. For more detailed information, an online search of the specific code is recommended.
- Intermittent Problems: For issues that occur sporadically, use the 'Freeze Frame' data to understand the conditions (engine speed, temperature, etc.) when the fault first appeared.
- Pre-Smog Check: Utilize the 'I/M Readiness' function before an official emissions test to ensure all monitors are complete, helping to avoid test failures.
- Battery Health: Regularly check your car's battery voltage using the scanner's battery test function, especially during colder months, to preempt potential starting issues.
11. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the seller directly. Keep your proof of purchase for warranty claims.





