WOMS
U code network High severity

U2015 Lost Communication with the Steering Angle Sensor

The OBD2 code U2015 indicates a loss of communication with the steering angle sensor, which may affect the vehicle's stability control and steering systems

Definition

The OBD2 code U2015 indicates a loss of communication with the steering angle sensor, which may affect the vehicle's stability control and steering systems

Common causes

  • Faulty steering angle sensor
  • Damaged wiring or connectors
  • Poor electrical connections
  • Malfunctioning power steering control module
  • Software issues or calibration errors
  • Low battery voltage or electrical system issues
  • Interference from aftermarket devices or modifications

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 ABS Module
  • Software or Firmware Issues
  • 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 using a multimeter or scan tool to ensure it is functioning correctly. Check for proper voltage and resistance values as specified in the vehicle’s service manual

  5. 5. Calibration

    Some vehicles require the steering angle sensor to be calibrated after installation or repair. Check if calibration is necessary

  6. 6. Check Power and Ground

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

  7. 7. Inspect the CAN Bus System

    Since the steering angle sensor communicates over the CAN (Controller Area Network) bus, check for issues in the CAN bus wiring. Look for shorts, opens, or other faults in the wiring that could disrupt communication

  8. 8. Use a scan tool to monitor the CAN bus for any irregularities

  9. 9. Check for Interference

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

  10. 10. Reset the Codes

    After performing inspections and repairs, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns

  11. 11. 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. Manufacturers may have issued guidance or fixes for known issues

  12. 12. 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

  13. 13. Seek Professional Help

    If you are unable to resolve the issue after these steps, it may be best to consult a professional mechanic or technician who has experience with your specific vehicle model. By following these steps, you should be able to identify and address the cause of the U2015 code effectively