WOMS
U code network Medium severity

U2016 Lost Communication with the Steering Angle Sensor

The OBD2 code U2016 indicates a loss of communication with the steering angle sensor, which may affect the vehicle's stability control and steering response systems

Definition

The OBD2 code U2016 indicates a loss of communication with the steering angle sensor, which may affect the vehicle's stability control and steering response 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 damaged connectors
  • Faulty Body Control Module (BCM)
  • Faulty Electronic Power Steering (EPS) module
  • Incorrectly calibrated steering angle sensor
  • Issues with the vehicle's CAN bus system
  • Faulty ABS module
  • 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, related codes can provide more context for 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

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

  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 check for power and ground 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. Termination Resistors

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

  9. 9. Signal Integrity

    Use an oscilloscope to check the signal integrity on the CAN bus lines

  10. 10. Look for Intermittent Issues

    Sometimes, the issue may be intermittent. Pay attention to when the code appears (e.g., during specific driving conditions) and check for any patterns

  11. 11. Check for Software Updates

    Check if there are any software updates available for the vehicle’s ECU that may address communication issues with the steering angle sensor

  12. 12. Clear Codes and Test Drive

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

  13. 13. Consult Technical Service Bulletins (TSBs)

    Look 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. By following these steps, you should be able to identify the cause of the U2016 code and take appropriate action to resolve the issue