WOMS
U code network Medium severity

U0192 Lost Communication With Personal Computer

The OBD2 code U0192 indicates a loss of communication between the vehicle's control module and the personal computer or diagnostic tool, suggesting a potential issue with the data link or wiring

Definition

The OBD2 code U0192 indicates a loss of communication between the vehicle's control module and the personal computer or diagnostic tool, suggesting a potential issue with the data link or wiring

Common causes

  • Faulty wiring or connectors
  • Malfunctioning PCM (Powertrain Control Module)
  • Issues with the diagnostic tool or scanner
  • Software or firmware issues in the PCM
  • Corrupted data or communication protocols
  • Low battery voltage or power supply issues
  • Interference from aftermarket devices or modifications

Common misdiagnoses

  • Faulty OBDII connector
  • Bad wiring or connections
  • Defective ECM (Engine Control Module)
  • Malfunctioning sensors
  • Software issues or updates needed
  • Battery or power supply problems
  • Corrupted data or communication protocols
  • Faulty diagnostic tool or scanner

Troubleshooting steps

  1. 1. Check the Diagnostic Tool

  2. 2. Ensure that the OBD-II scanner or diagnostic tool is functioning properly. Test it on another vehicle to confirm it works correctly

  3. 3. Make sure the tool is compatible with your vehicle's make and model

  4. 4. Inspect the OBD-II Port

  5. 5. Check the OBD-II port for any physical damage or debris. Ensure that the connector pins are not bent or corroded

  6. 6. Ensure that the connection between the diagnostic tool and the OBD-II port is secure

  7. 7. Check Vehicle Battery and Power Supply

  8. 8. Ensure the vehicle's battery is fully charged and in good condition. Low voltage can cause communication issues

  9. 9. Check for any blown fuses related to the vehicle's communication systems

  10. 10. Inspect Wiring and Connectors

  11. 11. Look for damaged or frayed wiring in the communication circuits. Pay special attention to the wiring harnesses connected to the control modules

  12. 12. Check the connectors for corrosion or loose connections

  13. 13. Scan for Other Codes

  14. 14. Use the diagnostic tool to check for any other trouble codes that may provide additional context or indicate related issues

  15. 15. Reset the Codes

  16. 16. Clear the U0192 code and any other codes using the diagnostic tool. Then, take the vehicle for a test drive to see if the code reappears

  17. 17. Check Control Modules

  18. 18. If the issue persists, there may be a problem with one of the control modules (e.g., PCM, BCM). Inspect these modules for any signs of damage or failure

  19. 19. Ensure that all control modules are properly communicating with each other

  20. 20. Software Updates

  21. 21. Check if there are any software updates available for the vehicle's control modules. Sometimes, communication issues can be resolved with an update

  22. 22. Consult Technical Service Bulletins (TSBs)

  23. 23. Look for any TSBs related to your vehicle's make and model that may address communication issues

  24. 24. Professional Diagnosis

  25. 25. If the problem persists after performing the above steps, consider seeking help from a professional mechanic or dealership. They may have specialized tools and knowledge to diagnose and repair the issue. By following these troubleshooting steps, you can identify and potentially resolve the communication issue indicated by the U0192 code