WOMS
U code network Medium severity

U1682 Invalid Data Received from Vehicle Control Module

The OBD2 code U1682 indicates that the vehicle's control module has received invalid or corrupted data from another control module, which may affect communication between modules

Definition

The OBD2 code U1682 indicates that the vehicle's control module has received invalid or corrupted data from another control module, which may affect communication between modules

Common causes

  • Faulty Vehicle Control Module (VCM)
  • Poor or damaged wiring/connectors
  • Corrupted data communication
  • Faulty or incompatible aftermarket components
  • Issues with the OBDII port
  • Software glitches or updates needed
  • Low battery voltage or power supply issues

Common misdiagnoses

  • Faulty Vehicle Control Module (VCM)
  • Wiring issues or shorts in the communication lines
  • Faulty sensors or actuators
  • Corrupted software or firmware in the control modules
  • Issues with the OBDII connector or communication port
  • Problems with other control modules affecting communication
  • Battery or power supply issues affecting module operation

Troubleshooting steps

  1. 1. Check for Other Codes

    Use an OBD-II scanner to check for any other trouble codes that may be present. Sometimes, multiple codes can provide more context for the issue

  2. 2. Inspect Wiring and Connectors

  3. 3. Visually inspect the wiring and connectors associated with the vehicle control module and any related modules. Look for signs of damage, corrosion, or loose connections

  4. 4. Pay special attention to the ground connections, as poor grounding can lead to communication issues

  5. 5. Check for Short Circuits

    Use a multimeter to check for short circuits in the wiring harness. Ensure that there are no unintended connections between wires that could cause data corruption

  6. 6. Test the Control Module

  7. 7. If possible, test the vehicle control module (VCM) for proper operation. This may involve using specialized diagnostic tools or software

  8. 8. If the module is suspected to be faulty, consider replacing it or reprogramming it if necessary

  9. 9. Inspect the CAN Bus

  10. 10. The U1682 code often relates to issues with the Controller Area Network (CAN) bus. Check the CAN bus wiring for damage or disconnections

  11. 11. Use a CAN bus scanner to monitor the communication on the bus and identify any anomalies

  12. 12. Check for Software Updates

    Sometimes, a software update from the manufacturer can resolve communication issues. Check if there are any available updates for the vehicle's control modules

  13. 13. Clear Codes and Test Drive

    After performing any repairs or inspections, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns

  14. 14. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the specific make and model of the vehicle. Manufacturers may have issued guidance on common issues related to the U1682 code

  15. 15. Seek Professional Help

    If the issue persists after performing the above steps, it may be necessary to consult a professional mechanic or technician who has experience with the specific vehicle and its control systems. By following these troubleshooting steps, you can systematically identify and resolve the underlying issue causing the U1682 code