WOMS
U code network Medium severity

U2059 Lost Communication with the Steering Angle Sensor

The OBD2 code U2059 indicates a loss of communication with the steering angle sensor, which may affect the vehicle's stability control and steering functions

Definition

The OBD2 code U2059 indicates a loss of communication with 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 Short Circuits
  • Faulty Body Control Module (BCM)
  • Faulty Electronic Power Steering (EPS) Module
  • Incorrectly Calibrated Steering Angle Sensor
  • Faulty Instrument Cluster
  • Issues with the CAN Bus Communication
  • Battery or Power Supply Problems

Troubleshooting steps

  1. 1. Check for Additional Codes

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

  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, corroded, or pushed back

  4. 4. Test the Steering Angle Sensor

    Sensor Functionality: If possible, test the steering angle sensor to ensure it is functioning correctly. This may involve using a multimeter or an oscilloscope to check the output signal

  5. 5. Calibration

    Some vehicles require the steering angle sensor to be calibrated after installation or repair. Check the vehicle’s service manual for calibration procedures

  6. 6. Check Power and Ground

    Verify that the steering angle sensor is receiving the correct voltage and ground. 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 (Controller Area Network) bus, check for any issues with the CAN bus wiring or other modules on the bus

  8. 8. Look for shorts, opens, or high resistance in the CAN wiring

  9. 9. Check for Interference

    Ensure that there are no aftermarket devices or modifications that could be interfering with the communication between the steering angle sensor and the vehicle’s control modules

  10. 10. Scan for Module Communication

    Use a scan tool to check if other modules in the vehicle can communicate with the steering angle sensor. If other modules are also unable to communicate, it may indicate a broader communication issue

  11. 11. Inspect the Steering Column

    Check the steering column for any mechanical issues that could affect the sensor's operation, such as binding or misalignment

  12. 12. Update Software/Firmware

    In some cases, a software update for the vehicle’s control modules may resolve communication issues. Check with the manufacturer for any available updates

  13. 13. Replace the Steering Angle Sensor

    If all other troubleshooting steps fail and the sensor is confirmed to be faulty, consider replacing the steering angle sensor.1

  14. 14. Clear Codes and Test Drive

    After performing repairs or replacements, clear the trouble codes and take the vehicle for a test drive to see if the code returns.Conclusion If you are not comfortable performing these steps or if the issue persists after troubleshooting, it may be best to consult a professional mechanic or technician who has experience with your specific vehicle make and model