WOMS
U code network Medium severity

U0229 Lost Communication With Heated Steering Wheel Module

The OBD2 code U0229 indicates a loss of communication with the heated steering wheel module, suggesting that the vehicle's diagnostic system is unable to communicate with this specific module, which may affect its...

Definition

The OBD2 code U0229 indicates a loss of communication with the heated steering wheel module, suggesting that the vehicle's diagnostic system is unable to communicate with this specific module, which may affect its functionality

Common causes

  • Faulty heated steering wheel module
  • Wiring issues (damaged, frayed, or corroded wires)
  • Poor connections or loose connectors
  • Faulty CAN bus communication
  • Blown fuse related to the heated steering wheel system
  • Software or firmware issues in the vehicle's control modules
  • Electrical interference from other components or systems

Common misdiagnoses

  • Faulty Heated Steering Wheel Module
  • Wiring issues or shorts in the harness
  • Faulty Body Control Module (BCM)
  • Faulty Instrument Cluster
  • Poor ground connections
  • Faulty steering column components
  • Software issues or updates needed in the vehicle's computer systems

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 about the issue

  2. 2. Inspect the Wiring and Connectors

    Visual Inspection: Check the wiring harness and connectors associated with the heated steering wheel module for any signs of damage, corrosion, or loose connections

  3. 3. Connector Pins

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

  4. 4. Test the Heated Steering Wheel Module

    If accessible, test the heated steering wheel module for proper operation. This may involve checking the module's power and ground connections

  5. 5. If you have access to a multimeter, measure the voltage at the module's connector to ensure it is receiving power

  6. 6. Check for Communication Issues

    Use a scan tool to check if the heated steering wheel module is communicating with the vehicle's network. If it is not responding, there may be a communication issue

  7. 7. Inspect the CAN (Controller Area Network) bus for faults. This may involve checking other modules on the network to see if they are functioning correctly

  8. 8. Inspect the Fuses

    Check the vehicle’s fuse box for any blown fuses related to the steering wheel or the heated steering wheel module. Replace any blown fuses as necessary

  9. 9. Perform a Module Reset

    Sometimes, resetting the module can resolve communication issues. This can be done by disconnecting the battery for a few minutes or using a scan tool to clear the codes

  10. 10. Check for Software Updates

    Verify if there are any software updates available for the vehicle’s modules. Sometimes, manufacturers release updates to fix communication issues

  11. 11. Test the Vehicle’s Battery and Charging System

    A weak battery or charging system can cause communication issues. Ensure the battery is in good condition and that the charging system is functioning properly

  12. 12. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the heated steering wheel module or communication issues for your specific vehicle make and model. Manufacturers may have specific fixes for known issues

  13. 13. Seek Professional Help

    If the issue persists after performing the above steps, it may be necessary to consult a professional mechanic or dealership for further diagnosis. They may have specialized tools and knowledge to address the problem.Conclusion By following these troubleshooting steps, you can systematically identify and potentially resolve the issue related to the U0229 code. Always ensure safety precautions are taken when working on vehicle electrical systems