U2131 – Lost Communication with the Steering Angle Sensor Module.

The ODBII code U2131 indicates that there is a loss of communication between the vehicle’s control module and the steering angle sensor module, which may affect the vehicle’s stability control and steering functions.

The severity of ODBII code U2131 is generally considered moderate.

Common Causes For: U2130 Lost Communication with Vehicle Dynamics Control Module.

• Faulty steering angle sensor
• Damaged wiring or connectors
• Poor electrical connections
• Malfunctioning vehicle control module
• Software issues or updates needed
• Low battery voltage
• Interference from aftermarket devices or modifications

Common misdiagnosis for U2131 Lost Communication with the Steering Angle Sensor Module.

• 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 Issues or Corrupted Data
• Battery or Charging System Problems

Common Troubleshooting Steps

When dealing with the OBD-II code U2131, which indicates “Lost Communication with the Steering Angle Sensor Module,” 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. Other codes may provide more context or indicate related issues.
• Inspect Wiring and Connectors: **Visual Inspection: Check the wiring harness and connectors leading to 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.
• **Calibration: Some vehicles require the steering angle sensor to be calibrated after installation or repair. Check the vehicle’s service manual for calibration procedures.
• Check Power and Ground: **Power Supply: Verify that the steering angle sensor is receiving the correct voltage. Use a multimeter to check the power supply at the sensor connector.
• **Ground Connection: Ensure that the ground connection for the sensor is intact and providing a good ground.
• Inspect the CAN Bus: **Communication Lines: Since the steering angle sensor communicates over the CAN bus, check for any issues with the CAN wiring. Look for shorts, opens, or interference.
• **Bus Termination: Ensure that the CAN bus is properly terminated, as improper termination can lead to communication issues.
• Check for Software Issues: **ECU Updates: Check if there are any software updates available for the vehicle’s ECU that may address communication issues.
• **Resetting Codes: Clear the trouble codes and see if the U2131 code returns. Sometimes, a temporary glitch can cause communication errors.
• Inspect Related Modules: **Other Modules: Check if other modules that communicate with the steering angle sensor are functioning properly. A fault in another module can sometimes affect communication.
• **Intermittent Issues: Look for intermittent issues that may not always trigger a code but can cause communication loss.
• 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 known fixes for common problems.
• 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 complex communication issues.Conclusion By following these troubleshooting steps, you can systematically identify and resolve the issue related to the U2131 code. Always refer to the vehicle’s service manual for specific procedures and specifications related to your vehicle.