U1195 SCP (J1850) Invalid or Missing Data for Mirrors

Definition

Common causes

• Faulty mirror control module
• Damaged wiring or connectors
• Poor ground connection
• Malfunctioning body control module (BCM)
• Corroded or loose electrical connections
• Software issues or programming errors
• Faulty mirror sensors or actuators
• Interference from aftermarket accessories

Common misdiagnoses

• Faulty mirror control module
• Wiring issues or shorts in the mirror circuit
• Malfunctioning body control module (BCM)
• Incorrectly configured or programmed vehicle settings
• Faulty or damaged mirrors themselves
• Issues with the vehicle's communication network (CAN bus)
• Low battery voltage or power supply issues

Troubleshooting steps

1. 1. Check for Additional Codes

   Use an OBD-II scanner to check for any other trouble codes that may be present. Sometimes, multiple codes can provide more context for the issue

2. 2. Inspect Wiring and Connectors

   Visual Inspection: Check the wiring harness and connectors related to the mirrors for any signs of damage, corrosion, or loose connections

3. 3. Connector Pins

   Ensure that the pins in the connectors are not bent or corroded

4. 4. Test the Mirror Functions

   Manually test the mirror adjustments and heating functions (if applicable) to see if they operate correctly. If they do not, the issue may be with the mirrors themselves

5. 5. Check the SCP (J1850) Communication

   Network Integrity: Ensure that the SCP (J1850) communication network is functioning properly. This may involve checking other modules on the network for communication issues

6. 6. Scan Tool

   Use a scan tool to monitor the data bus and check for any communication errors or interruptions

7. 7. Inspect the Body Control Module (BCM)

   The BCM often controls the mirrors. Check for any faults in the BCM and ensure it is functioning correctly

8. 8. If possible, reprogram or reset the BCM to see if that resolves the issue

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 issues

10. 10. Perform a Hard Reset

    Disconnect the vehicle's battery for a few minutes to reset the vehicle's electronic systems. Reconnect and see if the code reappears

11. 11. Inspect Related Components

    Check other components that may be related to the mirror system, such as switches, relays, and fuses. Ensure they are functioning properly

12. 12. Consult Technical Service Bulletins (TSBs)

    Look for any TSBs related to the specific make and model of the vehicle. Manufacturers may have documented solutions for common issues

13. 13. 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 the problem more effectively.Conclusion By following these troubleshooting steps, you can systematically identify and address the cause of the U1195 code. Always ensure safety precautions are taken when working on vehicle electrical systems