U2044 – Lost Communication with the Steering Angle Sensor.
The ODBII code U2044 indicates that there is a loss of communication between the vehicle’s control module and the steering angle sensor, which may affect the vehicle’s stability control and steering functions.
The severity of ODBII code U2044 is moderate.
Common Causes For: U2043 Lost Communication with Vehicle Dynamics 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 U2044 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 U2044, 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, multiple codes can provide more context about 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 or corroded.
- 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.
- **Resistance and Voltage: Check the resistance and voltage output of the sensor according to the manufacturer’s specifications.
- Check for Power and Ground: Verify that the steering angle sensor is receiving the correct voltage and has a good ground connection. Use a multimeter to check for power at the sensor connector.
- Inspect the CAN Bus: Since the steering angle sensor communicates over the CAN bus, check for any issues with the CAN network.
- Look for any damaged wiring or poor connections in the CAN bus system.
- Scan Tool Data: Use a scan tool to monitor live data from the steering angle sensor. Check if the sensor is providing data when the steering wheel is turned.
- Look for any unusual readings or lack of data.
- Check for Software Updates: Sometimes, a software update for the vehicle’s ECU may resolve communication issues. Check with the manufacturer for any available updates.
- 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 reappears.
- 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.
- Professional Diagnosis: If the issue persists after performing the above steps, consider seeking help from a professional mechanic or dealership, as they may have specialized tools and knowledge to diagnose the problem further.Conclusion By following these troubleshooting steps, you can systematically identify and resolve the issue related to the U2044 code. Always refer to the vehicle’s service manual for specific procedures and specifications related to your vehicle model.