Brake Pad Wear Sensor Open - Rear Left
The C0906 code means the vehicle's onboard diagnostic system has detected: Brake Pad Wear Sensor Open - Rear Left. This is a moderate severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- easy
- Estimated cost
- $150 - $400 (parts and labor)
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Common Symptoms
- Brake wear indicator light on
- Squealing noise from brakes
- Brake pad warning on dashboard
- Reduced braking performance
Probable Causes (Ranked by Likelihood)
- Brake pads worn to minimum thickness Very High
- Brake pad wear sensor wire damaged High
- Overheated brakes from aggressive driving Moderate
- Incorrect brake pad sensor installed Low
Step-by-Step Diagnostic Procedure
-
Visually inspect brake pad thickness
-
Check brake pad wear sensor wiring
-
Measure brake pad thickness with calipers
-
Inspect for signs of brake overheating
Frequently Asked Questions
What does code C0906 mean?
C0906 indicates a fault with the brake pad wear sensor open - rear left.
Can I drive with C0906?
You can drive normally but schedule brake service soon.
How much does it cost to fix C0906?
Typical repair costs are $150 - $400 (parts and labor).
Sources
This page is built from documented references. Verify against your own service info before repair work.
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