WOMS
U code network Medium severity

U1205 SCP (J1850) Invalid or Missing Data for Steering Column

The OBD2 code U1205 SCP (J1850) indicates that there is invalid or missing data related to the steering column, which may affect the vehicle's communication network

Definition

The OBD2 code U1205 SCP (J1850) indicates that there is invalid or missing data related to the steering column, which may affect the vehicle's communication network

Common causes

  • Faulty steering column control module
  • Damaged wiring or connectors in the steering column circuit
  • Corrupted or missing data in the communication network
  • Faulty or malfunctioning sensors related to the steering column
  • Issues with the vehicle's onboard diagnostic system
  • Low battery voltage or electrical issues
  • Software glitches or programming errors in the control modules

Common misdiagnoses

  • Faulty steering column position sensor
  • Defective steering angle sensor
  • Malfunctioning body control module (BCM)
  • Wiring issues or poor connections
  • Faulty powertrain control module (PCM)
  • Incorrectly calibrated steering system
  • Issues with the vehicle's CAN bus communication
  • Low battery voltage or electrical system problems

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other trouble codes that may be present. Addressing related codes can help in diagnosing the issue more effectively

  2. 2. Inspect Wiring and Connectors

    Visual Inspection: Check the wiring harness and connectors related to the steering column and the modules that communicate with it. Look for signs of damage, corrosion, or loose connections

  3. 3. Repair or Replace

    Repair any damaged wires or connectors and ensure all connections are secure

  4. 4. Check the Steering Column Position Sensor

    Functionality Test: If applicable, test the steering column position sensor for proper operation. This may involve checking the sensor's resistance or voltage output

  5. 5. Replace if Necessary

    If the sensor is found to be faulty, replace it

  6. 6. Inspect the Communication Network

    Network Integrity: Check the integrity of the vehicle's communication network (CAN bus or SCP). Look for any shorts, opens, or other issues in the wiring

  7. 7. Module Communication

    Ensure that all modules on the network are communicating properly. A malfunctioning module can cause communication issues

  8. 8. Check for Software Updates

    ECU Updates: Check if there are any available software updates for the vehicle's ECU or related modules. Sometimes, manufacturers release updates to fix known issues

  9. 9. Clear Codes and Test Drive

    After performing repairs or inspections, clear the trouble codes using the OBD-II scanner

  10. 10. Take the vehicle for a test drive to see if the code reappears. Monitor the vehicle's performance and any warning lights

  11. 11. Consult Technical Service Bulletins (TSBs)

    Look for any TSBs related to the U1205 code or steering column issues for your specific vehicle make and model. Manufacturers may have specific recommendations or known fixes

  12. 12. Professional Diagnosis

    If the issue persists after performing the above steps, consider seeking help from a professional mechanic or dealership. They may have specialized diagnostic tools and experience with your vehicle.Conclusion Troubleshooting OBD-II code U1205 involves a systematic approach to check for wiring issues, sensor functionality, and communication network integrity. By following these steps, you can identify and resolve the underlying problem effectively