FixItFor.Us
U code network High severity

U0159 Lost Communication With Parking Assist Control Module "A

The OBD2 code U0159 indicates a loss of communication with the Parking Assist Control Module "A," suggesting that the vehicle's diagnostic system is unable to communicate with this specific module, which may affect...

Definition

The OBD2 code U0159 indicates a loss of communication with the Parking Assist Control Module "A," suggesting that the vehicle's diagnostic system is unable to communicate with this specific module, which may affect parking assist features

Common causes

  • Faulty Parking Assist Control Module
  • Damaged wiring or connectors
  • Poor electrical connections
  • Blown fuse
  • Corroded terminals
  • Software issues or glitches
  • Faulty vehicle communication network (CAN bus)

Common misdiagnoses

  • Faulty parking assist control module
  • Wiring issues or damaged connectors
  • Faulty body control module
  • Software or firmware issues
  • Faulty sensors or sensor wiring
  • Power supply issues to the module
  • Faulty diagnostic tool or incorrect code interpretation

Troubleshooting steps

  1. 1. Check for Other Codes

    Use an OBD-II scanner to check for any additional trouble codes. Sometimes, multiple codes can provide more context for the issue

  2. 2. Inspect the Wiring and Connectors

    Visual Inspection: Check the wiring harness and connectors related to the parking assist control module for any signs of damage, corrosion, or loose connections

  3. 3. Connector Pins

    Ensure that the pins in the connectors are not bent, corroded, or damaged

  4. 4. Test the Parking Assist Control Module

    Power and Ground: Verify that the parking assist control module is receiving the correct power and ground signals. Use a multimeter to check voltage and ground continuity

  5. 5. Module Functionality

    If possible, test the module itself to ensure it is functioning correctly. This may involve swapping it with a known good module if available

  6. 6. Check for Communication Issues

    CAN Bus Communication: Since U0159 is a communication-related code, check the CAN bus for proper operation. Use a scan tool to monitor the data bus and ensure that other modules are communicating correctly

  7. 7. Termination Resistors

    Ensure that the CAN bus termination resistors are present and functioning correctly

  8. 8. Inspect Related Components

    Check other components that may be related to the parking assist system, such as sensors, switches, and the vehicle's main computer (ECU). A fault in one of these components can sometimes lead to communication issues

  9. 9. Perform a System Reset

    Clear the trouble codes using the OBD-II scanner and see if the code returns after a test drive. Sometimes, a temporary glitch can cause communication issues

  10. 10. Check for Software Updates

    Verify if there are any software updates available for the vehicle’s ECU or the parking assist control module. Manufacturers sometimes release updates to fix known issues

  11. 11. Consult Technical Service Bulletins (TSBs)

    Look for any TSBs related to the parking assist system for your specific vehicle make and model. These bulletins can provide valuable information on known issues and fixes

  12. 12. Professional Diagnosis

    If the issue persists after performing the above steps, consider seeking help from a professional mechanic or dealership. They may have specialized diagnostic tools and experience with your specific vehicle.Conclusion By following these troubleshooting steps, you can systematically identify and address the cause of the U0159 code. Always ensure safety precautions are taken when working on vehicle electrical systems