WOMS
U code network Medium severity

U2597 Lost Communication with the Steering Angle Sensor

The OBD2 code U2597 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 U2597 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 vehicle control module (VCM)
  • Software issues or outdated firmware
  • Corrosion in connectors or terminals
  • Interference from other electronic components
  • Low battery voltage or power supply issues

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 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, 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 by the manufacturer

  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 the CAN Bus Communication

    Network Integrity: Since the steering angle sensor communicates over the CAN bus, check for any issues with the CAN network. Look for short circuits, open circuits, or other communication faults

  7. 7. Scan Tool

    Use a scan tool to monitor the CAN bus data and see if the steering angle sensor is transmitting data

  8. 8. Inspect the Power and Ground Supply

    Power Supply: Verify that the steering angle sensor is receiving the correct voltage. Check the vehicle’s wiring diagrams for the correct voltage specifications

  9. 9. Ground Connection

    Ensure that the ground connection for the sensor is solid and free of corrosion

  10. 10. Check for Software Updates

    ECU Updates: Sometimes, the issue can be resolved with a software update to the vehicle’s ECU. Check with the manufacturer or a dealership for any available updates

  11. 11. Look for Physical Obstructions

    Steering Mechanism: Ensure that there are no physical obstructions or mechanical issues affecting the steering mechanism that could impact the sensor's operation

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

    Battery Voltage: Low voltage can cause communication issues. Check the battery voltage and ensure the charging system is functioning properly

  13. 13. 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 returns

  14. 14. 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.1

  15. 15. Professional Diagnosis

    If the issue persists after performing these 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 and resolve the issue related to the U2597 code