Driver Monitor System Fault
The B0970 code means the vehicle's onboard diagnostic system has detected: Driver Monitor System Fault. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $100 - $600 (parts and labor)
Basic scanners skip body codes entirely. BlueDriver reads airbag, HVAC, lighting, and BCM codes through your phone.
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Common Symptoms
- Driver attention warning inactive
- Driver monitoring system fault displayed
- Drowsiness detection not working
- Lane departure warning affected
Probable Causes (Ranked by Likelihood)
- Faulty camera unit Very High
- Damaged camera wiring High
- Corroded camera connector Moderate
- Camera processing module fault Low
Step-by-Step Diagnostic Procedure
-
Inspect camera lens for damage or dirt
-
Check camera connector and wiring
-
Test camera power supply voltage
-
Verify camera module communication
Frequently Asked Questions
Why is my backup camera screen black?
A failed camera, loose connector, or corroded wiring are the most common causes of a black backup camera screen.
Can I replace the backup camera myself?
The camera itself is usually accessible at the rear of the vehicle and is a moderate DIY repair, but some require coding.
Is the backup camera required by law?
In the US, all vehicles manufactured after May 2018 are required to have backup cameras. Repair is recommended for safety.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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