U2059 – Lost Communication with the Steering Angle Sensor.
The ODBII code U2059 indicates a loss of communication with the steering angle sensor, which may affect the vehicle’s stability control and steering functions.
The severity of ODBII code U2059 is generally considered moderate.
Common Causes For: U2057 Lost Communication with the Steering Angle Sensor.
- 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 U2059 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 Instrument Cluster
- Issues with the CAN Bus Communication
- Battery or Power Supply Problems
Common Troubleshooting Steps
When dealing with the OBD-II code U2059, 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 to ensure it is functioning correctly. This may involve using a multimeter or an oscilloscope to check the output signal.
- **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: Verify that the steering angle sensor is receiving the correct voltage and ground. Use a multimeter to check for power at the sensor connector.
- Inspect the CAN Bus: Since the steering angle sensor communicates over the CAN (Controller Area Network) bus, check for any issues with the CAN bus wiring or other modules on the bus.
- Look for shorts, opens, or high resistance in the CAN wiring.
- Check for Interference: Ensure that there are no aftermarket devices or modifications that could be interfering with the communication between the steering angle sensor and the vehicle’s control modules.
- Scan for Module Communication: Use a scan tool to check if other modules in the vehicle can communicate with the steering angle sensor. If other modules are also unable to communicate, it may indicate a broader communication issue.
- Inspect the Steering Column: Check the steering column for any mechanical issues that could affect the sensor’s operation, such as binding or misalignment.
- Update Software/Firmware: In some cases, a software update for the vehicle’s control modules may resolve communication issues. Check with the manufacturer for any available updates.
- Replace the Steering Angle Sensor: If all other troubleshooting steps fail and the sensor is confirmed to be faulty, consider replacing the steering angle sensor.1
- Clear Codes and Test Drive: After performing repairs or replacements, clear the trouble codes and take the vehicle for a test drive to see if the code returns.Conclusion If you are not comfortable performing these steps or if the issue persists after troubleshooting, it may be best to consult a professional mechanic or technician who has experience with your specific vehicle make and model.