U2057 – Lost Communication with the Steering Angle Sensor.

The ODBII code U2057 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 U2057 is moderate.

Common Causes For: U2055 Lost Communication with Vehicle Control Module.

• 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 misdiagnosis for U2057 Lost Communication with the Steering Angle Sensor.

• Faulty steering angle sensor
• Wiring issues or damaged connectors
• Faulty steering column module
• Malfunctioning ABS module
• Power steering system issues
• Faulty body control module (BCM)
• Incorrectly calibrated steering angle sensor
• Software or firmware issues in the vehicle’s control modules

Common Troubleshooting Steps

When dealing with the OBD-II code U2057, 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 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.
• 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 signal output.
• **Calibration: Some vehicles require the steering angle sensor to be calibrated after installation or repair. Refer to the vehicle’s service manual for calibration procedures.
• Check the CAN Bus System: **Communication Issues: Since the steering angle sensor communicates over the CAN bus, check for any issues in the CAN network. Look for other modules that may not be communicating properly.
• **Termination Resistors: Ensure that the CAN bus termination resistors are present and functioning correctly.
• 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 Connections: Ensure that the ground connections for the sensor are secure 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.
• Clear Codes and Test Drive: After performing the above checks 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.
• 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. Manufacturers may have issued guidance on common problems and fixes.
• Professional Diagnosis: If the issue persists after performing the above steps, consider seeking help from a professional mechanic or dealership. They may have specialized tools and knowledge to diagnose more complex issues. By following these steps, you should be able to identify and resolve the issue related to the U2057 code. Always refer to the specific service manual for your vehicle for detailed procedures and specifications.