WOMS
U code network Medium severity

U2044 Lost Communication with the Steering Angle Sensor

The OBD2 code U2044 indicates that there is a loss of communication between the vehicle's control module and the steering angle sensor, which may affect the vehicle's stability control and steering functions

Definition

The OBD2 code U2044 indicates that there is a loss of communication between the vehicle's control module and the steering angle sensor, which may affect the vehicle's stability control and steering functions

Common causes

  • Faulty steering angle sensor
  • Damaged wiring or connectors
  • Poor electrical connections
  • Malfunctioning power supply to the sensor
  • Software issues or calibration errors
  • Faulty vehicle control module (VCM)
  • Interference from other electronic components

Common misdiagnoses

  • Faulty steering angle sensor
  • Wiring issues or damaged connectors
  • Faulty steering column module
  • Malfunctioning ABS module
  • Power steering system issues
  • Faulty body control module (BCM)
  • Incorrectly calibrated steering angle sensor
  • Software or firmware issues in the vehicle's control modules

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 Wiring and Connectors

    Visual Inspection: Check the wiring harness and connectors associated with the steering angle sensor 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 Steering Angle Sensor

    Sensor Functionality: If possible, test the steering angle sensor using a multimeter or scan tool to ensure it is functioning correctly

  5. 5. Resistance and Voltage

    Check the resistance and voltage output of the sensor according to the manufacturer’s specifications

  6. 6. Check for Power and Ground

    Verify that the steering angle sensor is receiving the correct voltage and has a good ground connection. Use a multimeter to check for power at the sensor connector

  7. 7. Inspect the CAN Bus

    Since the steering angle sensor communicates over the CAN bus, check for any issues with the CAN network

  8. 8. Look for any damaged wiring or poor connections in the CAN bus system

  9. 9. Scan Tool Data

    Use a scan tool to monitor live data from the steering angle sensor. Check if the sensor is providing data when the steering wheel is turned

  10. 10. Look for any unusual readings or lack of data

  11. 11. Check for Software Updates

    Sometimes, a software update for the vehicle’s ECU may resolve communication issues. Check with the manufacturer for any available updates

  12. 12. Clear Codes and Test Drive

    After performing the above checks and repairs, clear the trouble codes and take the vehicle for a test drive to see if the code reappears

  13. 13. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the steering angle sensor or communication issues for your specific vehicle make and model

  14. 14. Professional Diagnosis

    If the issue persists after performing the above steps, consider seeking help from a professional mechanic or dealership, as they may have specialized tools and knowledge to diagnose the problem further.Conclusion By following these troubleshooting steps, you can systematically identify and resolve the issue related to the U2044 code. Always refer to the vehicle’s service manual for specific procedures and specifications related to your vehicle model