WOMS
U code network Medium severity

U0190 Lost Communication With Digital Disc Player/Changer Module "D

The OBD2 code U0190 indicates a loss of communication between the vehicle's control module and the digital disc player or changer module

Definition

The OBD2 code U0190 indicates a loss of communication between the vehicle's control module and the digital disc player or changer module

Common causes

  • Faulty digital disc player/changer module
  • Damaged wiring or connectors
  • Poor ground connection
  • Blown fuse
  • Corroded terminals
  • Software issues or glitches
  • Faulty vehicle communication network (CAN bus)

Common misdiagnoses

  • Faulty wiring or connectors
  • Malfunctioning head unit
  • Defective digital disc player/changer
  • Software issues or updates needed
  • Battery or power supply problems
  • Grounding issues
  • Faulty CAN bus communication
  • Incorrectly configured audio settings

Troubleshooting steps

  1. 1. Check for Additional Codes

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

  2. 2. Inspect Wiring and Connectors

  3. 3. Visually inspect the wiring harness and connectors associated with the digital disc player/changer module. Look for signs of damage, corrosion, or loose connections

  4. 4. Ensure that all connectors are securely plugged in and that there are no bent pins

  5. 5. Check the Digital Disc Player/Changer

  6. 6. If possible, test the digital disc player/changer in another vehicle to see if it functions correctly. This can help determine if the module itself is faulty

  7. 7. If the player/changer is integrated into the head unit, consider testing the head unit as well

  8. 8. Inspect the Vehicle's Electrical System

  9. 9. Check the vehicle's battery voltage and ensure it is within the normal range (typically 12.4 to 12.6 volts when the engine is off)

  10. 10. Look for any blown fuses related to the audio system or communication modules

  11. 11. Perform a Hard Reset

  12. 12. Disconnect the vehicle's battery for a few minutes to reset the vehicle's computer systems. Reconnect the battery and see if the code reappears

  13. 13. Check for Software Updates

  14. 14. Some vehicles may require software updates for the audio system or communication modules. Check with the manufacturer or a dealership for any available updates

  15. 15. Scan for Communication Issues

  16. 16. Use a professional-grade scan tool to check for communication issues on the CAN (Controller Area Network) bus. This can help identify if there are problems with other modules that may be affecting communication

  17. 17. Inspect Ground Connections

  18. 18. Ensure that all ground connections related to the audio system and digital disc player/changer are clean and secure. Poor ground connections can lead to communication issues

  19. 19. Consult Technical Service Bulletins (TSBs)

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

  21. 21. Seek Professional Help

  22. 22. If the issue persists after performing the above steps, consider consulting a professional mechanic or an automotive technician with experience in electrical systems and audio components. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the U0190 code