U2597 – Lost Communication with the Steering Angle Sensor.

The ODBII code U2597 indicates a loss of communication with the steering angle sensor, which may affect the vehicle’s stability control and steering systems.

The severity of ODBII code U2597 is generally considered moderate.

Common Causes For: U2596 Lost Communication with Battery Energy Control Module (BECM) – Invalid Data Received.

• 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• Software issues or outdated firmware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 misdiagnosis for U2597 Lost Communication with the Steering Angle Sensor.

• 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

Common Troubleshooting Steps

When dealing with the OBD-II code U2597, which indicates “Lost Communication with the Steering Angle Sensor,” there are several common troubleshooting steps you can follow to diagnose and potentially resolve the issue. Here’s a structured approach:

• 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.
• 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.
• **Connector Pins: Ensure that the pins in the connectors are not bent, corroded, or pushed back.
• 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.
• **Calibration: Some vehicles require the steering angle sensor to be calibrated after installation or repair. Check if calibration is necessary.
• 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.
• **Scan Tool: Use a scan tool to monitor the CAN bus data and see if the steering angle sensor is transmitting data.
• 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.
• **Ground Connection: Ensure that the ground connection for the sensor is solid and free of corrosion.
• 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.
• 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.
• 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.
• 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.
• 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
• 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.