1. Introduction
The VLinker MC ELM327 V2.2 Bluetooth 4.0 OBD2 Car Diagnostic Scanner is a professional-grade diagnostic tool designed to transform your Android device or Windows PC into a powerful vehicle analysis system. It is recommended for use with applications like FORScan and BimmerCode, offering comprehensive diagnostic capabilities.
This compact OBD2 adapter provides unparalleled performance, intelligent sleep mode, and robust security features. It supports a wide range of third-party applications and is engineered to be hacker-proof, ensuring secure wireless communication.
Note: This Bluetooth product is not compatible with iOS (iPhone/iPad) devices.
2. Product Overview
The VLinker MC is a small, plug-and-play device that connects to your vehicle's OBD-II port. It features several indicators and a connect button for easy operation.
Figure 1: VLinker MC ELM327 with labeled indicators
Components:
- Bluetooth Indicator (BT): Shows Bluetooth connection status.
- OBD Data Light (OBD): Indicates data transfer over the OBD bus.
- Host Data Light (HOST): Indicates data transfer to/from the connected device (phone/PC).
- Power Indicator (POWER): Shows the device is powered on.
- Connect Button: Used to activate Bluetooth pairing mode.
- OBD-II Connector: Standard 16-pin connector for vehicle interface.
Figure 2: VLinker MC ELM327 device and supported platforms
3. Specifications
| Feature | Specification |
|---|---|
| Communication Interface | Bluetooth 4.0 |
| Supported Platforms | Android devices, Windows PCs (iOS devices not supported) |
| Voltage | 12V |
| USART Data Buffer | Up to 2K bytes |
| Baudrate | Up to 500Kbps |
| OBD Request Byte | Up to 1024 bytes |
| Operating Current | 24mA |
| Sleep Current | As low as 3mA |
| Dimensions (L x W x H) | 12cm x 7cm x 4cm |
| Weight | 80g |
| External Testing Certification | CE |
| Supported Protocols | All 5 standard OBD-II protocols, SW-CAN, MS-CAN |
| Vehicle Compatibility | All OBD2/EOBD compliant 12V petrol vehicles, 12V small diesel vehicles (load ≤ 6.5T) supporting OBD2 protocols. Not for heavy duty 24V diesel vehicles. |
Figure 3: Supported OBDII Protocols
4. Setup Guide
4.1. Initial Connection (Android Devices)
- Insert the Product: Locate your vehicle's OBD-II port (usually under the dashboard) and firmly insert the VLinker MC device.
- Ignition On: Turn your car's ignition to the 'Key On Engine Off' position. The VLinker MC's power indicator should light up.
- Enable Bluetooth: On your Android phone, go to Settings and enable Bluetooth.
- Activate Pairing: Press the black 'Connect' button on the VLinker MC device. This makes the device discoverable for pairing.
- Pair Device: On your phone, search for available Bluetooth devices. Select "vLinker MC" from the list.
- Enter Pairing Code: When prompted, enter the pairing code:
1234. - Confirm Connection: Once paired successfully, you can open your chosen OBD-II application to establish a connection.
Important: For detailed steps on APP operation, refer to the relevant information on the APP's official website, as different applications may have varying setup procedures.
Figure 4: VLinker MC connected to a laptop and smartphone
Figure 5: VLinker MC compatibility with Android and Windows devices (Note: iOS devices are not supported for this model)
5. Operation
Once connected, the VLinker MC allows you to perform various diagnostic and customization functions through compatible applications.
5.1. General Functions (via compatible apps):
- Reading Fault Codes (DTCs)
- Clearing Fault Codes
- Reading Live Data Streams
- Resetting Modules
- Brush Hiding (specific to some applications/vehicles)
- ECU Programming (specific to some applications/vehicles)
Figure 6: Functions recommended by FORScan
5.2. Specific Application Features:
- FORScan: Supports reading/clearing fault codes, data streaming, module resets, brush hiding, and ECU programming for Ford, Mazda, Lincoln, and Mercury vehicles.
- BimmerCode: Allows coding control units in BMW or Mini vehicles to unlock hidden features and customize settings.
- OBDZero: Supports electric vehicles.
- OBD CANex (3rd-party app): For supported GM models, you can control windows, door locks, and even remotely start your engine.
- ScanXL: For GM, Ford, and Mazda vehicles using Single-Wire CAN or Medium-Speed CAN, this software can access ABS, airbag, and other systems not available with standard OBD-II interfaces.
Figure 7: Examples of compatible applications
6. Maintenance
The VLinker MC is designed for low maintenance. Follow these guidelines to ensure its longevity and optimal performance:
- Storage: Store the device in a cool, dry place when not in use.
- Cleaning: Wipe the device with a soft, dry cloth to remove dust or debris. Do not use liquid cleaners or solvents.
- BatterySaver Technology: The device features an intelligent sleep mode with a low sleep current (3mA), allowing it to remain plugged into your car's OBD-II port without significantly draining the car's battery. However, for long-term storage of the vehicle, it is advisable to unplug the device.
- Firmware Updates: Periodically check the manufacturer's website or your chosen application for any available firmware updates for the VLinker MC to ensure continued compatibility and performance.
7. Troubleshooting
Common Issues and Solutions:
- Device Not Powering On:
- Ensure the device is fully inserted into the vehicle's OBD-II port.
- Verify the vehicle's ignition is in the 'Key On Engine Off' position.
- Check the vehicle's battery voltage (VLinker MC requires 12V).
- Bluetooth Pairing Failure:
- Make sure Bluetooth is enabled on your Android device or Windows PC.
- Press the black 'Connect' button on the VLinker MC to activate pairing mode.
- Ensure you are searching for "vLinker MC" and using the correct pairing code (1234).
- Restart Bluetooth on your device and try again.
- App Not Connecting to VLinker MC:
- Confirm that the VLinker MC is successfully paired via Bluetooth with your device.
- Ensure you are using a compatible application (e.g., FORScan, BimmerCode, Torque).
- Check the app's settings to ensure it is configured to connect to the correct Bluetooth device.
- Restart the application and try connecting again.
- No Data or Incorrect Readings:
- Verify your vehicle is OBD2/EOBD compliant.
- Ensure the vehicle's ignition is on.
- Some advanced functions or specific vehicle protocols may require specific app configurations or premium app versions. Consult the app's documentation.
- iOS Device Incompatibility:
- This specific VLinker MC Bluetooth model is not compatible with iOS devices. Please use an Android device or Windows PC.
8. User Tips
- App Selection: Research and choose an OBD-II application that best suits your vehicle and diagnostic needs. Popular choices include FORScan for Ford/Mazda, BimmerCode for BMW/Mini, and Torque for general diagnostics.
- Vehicle Compatibility: Always confirm your vehicle's compatibility with the OBD2 standard and the specific features of your chosen app before attempting advanced diagnostics or coding.
- Ignition State: For most operations, ensure your vehicle's ignition is in the 'Key On Engine Off' position. Some live data monitoring may require the engine to be running.
- Battery Saver: While the VLinker MC has a low power draw in sleep mode, it's good practice to unplug it if your vehicle will be parked for an extended period (e.g., several weeks) to prevent any minimal battery drain.
- Stay Updated: Keep your diagnostic applications and, if applicable, the VLinker MC firmware updated to benefit from the latest features and bug fixes.
9. Warranty and Support
For any technical assistance or support during the use of your VLinker MC device, please contact the seller or manufacturer directly. They can provide specific technical support and guidance for troubleshooting and advanced features.
The device is designed with over-voltage, over-current, over-temperature, and battery drain protection to ensure safe operation.