WOMS
U code network Medium severity

U0517 Invalid Data Received From "Door Switch B

The OBD2 code U0517 indicates that the vehicle's control module has received invalid or corrupted data from the door switch B, which may affect the operation of the door or related systems

Definition

The OBD2 code U0517 indicates that the vehicle's control module has received invalid or corrupted data from the door switch B, which may affect the operation of the door or related systems

Common causes

  • Faulty door switch
  • Wiring issues or damaged connectors
  • Corroded terminals
  • Faulty body control module (BCM)
  • Software glitches or programming errors
  • Poor ground connections
  • Intermittent electrical connections

Common misdiagnoses

  • Faulty door switch
  • Wiring issues
  • Body control module (BCM) failure
  • Incorrectly programmed BCM
  • Faulty connectors or terminals
  • Malfunctioning door latch assembly
  • Software glitches in the vehicle's computer system

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other related trouble codes. This can provide more context and help identify if there are other issues present

  2. 2. Inspect Wiring and Connectors

    Visually inspect the wiring and connectors associated with the door switch and the control module. Look for signs of damage, corrosion, or loose connections

  3. 3. Pay special attention to the wiring harness that connects to the door switch

  4. 4. Test the Door Switch

    Use a multimeter to test the door switch for proper operation. Check for continuity when the switch is activated and ensure it is functioning as intended

  5. 5. If the switch is faulty, replace it

  6. 6. Check for Ground Issues

    Ensure that the ground connections for the door switch and related control modules are secure and free of corrosion. A poor ground can lead to communication issues

  7. 7. Inspect Control Module

    If the door switch and wiring are in good condition, the issue may lie with the control module itself. Check for any signs of damage or water intrusion

  8. 8. If possible, perform a software update on the control module, as manufacturers sometimes release updates to fix communication issues

  9. 9. 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 reappears

  10. 10. Check for Intermittent Issues

    If the code does not reappear immediately, monitor the vehicle for any intermittent issues. Sometimes, problems can be sporadic and may require further observation

  11. 11. 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 U0517 code

  12. 12. 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 systems. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the U0517 code