B0126
Driver Monitoring Camera
What it means
B0126 means Driver Monitoring Camera.
Check these first
- The driver monitoring camera has failed or lost power
- An open or short in the camera signal circuit
- A blocked or dirty camera lens
- The camera module is not communicating on the bus
What to do next
- Check power and ground at the driver monitoring camera
- Inspect the camera connector for corrosion
- Clean the camera lens and clear any obstruction
- Test the camera signal circuit for opens and shorts
- Replace the driver monitoring camera if it does not respond
- Clear the code and retest
Look up another code
Enter a full code or a symptom. Press / to search. How to read a code
Type a code above, or start from a symptom or a common code.
Updated
Generic SAE J2012 definition. Last updated 2026-10-10.