WOMS
U code network Medium severity

U2195 SCP (J1850) Invalid Data from SCLM

The OBD2 code U2195 SCP (J1850) Invalid Data from SCLM indicates that the vehicle's communication network has received invalid or corrupted data from the Steering Column Lock Module (SCLM)

Definition

The OBD2 code U2195 SCP (J1850) Invalid Data from SCLM indicates that the vehicle's communication network has received invalid or corrupted data from the Steering Column Lock Module (SCLM)

Common causes

  • Faulty SCLM (Smart Junction Box)
  • Poor or damaged wiring/connectors
  • Corrupted data communication
  • Malfunctioning modules in the SCP network
  • Low battery voltage
  • Interference from aftermarket accessories
  • Software issues or programming errors

Common misdiagnoses

  • Faulty wiring or connectors
  • Malfunctioning body control module (BCM)
  • Defective instrument cluster
  • Issues with the communication network
  • Problems with the powertrain control module (PCM)
  • Incorrectly diagnosed sensor failures
  • Battery or charging system issues
  • Software or firmware glitches in modules

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 root cause

  2. 2. Inspect Wiring and Connectors

    Visually inspect the wiring and connectors related to the SCLM and SJB. Look for signs of damage, corrosion, or loose connections

  3. 3. Pay special attention to the ground connections, as poor grounding can lead to communication issues

  4. 4. Check for Short Circuits

    Use a multimeter to check for short circuits in the wiring harness. Ensure that there are no unintended connections between wires that could cause communication errors

  5. 5. Test the SCLM and SJB

    If possible, test the SCLM and SJB for proper operation. This may involve using a scan tool to monitor data and see if the modules are responding correctly

  6. 6. If you have access to a known good module, consider swapping it to see if the issue resolves

  7. 7. Inspect the Vehicle Battery and Charging System

    Ensure that the vehicle's battery is in good condition and fully charged. A weak battery can cause communication issues

  8. 8. Check the charging system to ensure it is functioning properly

  9. 9. Check for Software Updates

    Verify if there are any software updates available for the vehicle's modules. Sometimes, manufacturers release updates to fix known communication issues

  10. 10. Clear Codes and Test Drive

    After performing inspections 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

  11. 11. Consult Technical Service Bulletins (TSBs)

    Look for any TSBs related to the U2195 code or the SCLM/SJB for your specific vehicle make and model. Manufacturers may have specific recommendations for addressing this issue

  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 tools and knowledge to diagnose complex communication issues. By following these troubleshooting steps, you can systematically identify and resolve the issue related to the U2195 code