Brake Caliper Malfunction - Rear Left
The C0942 code means the vehicle's onboard diagnostic system has detected: Brake Caliper Malfunction - Rear Left. This is a critical severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $200 - $600 (parts and labor)
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Common Symptoms
- Brake drag on one wheel
- Vehicle pulls during braking
- Hot wheel after driving
- Uneven brake pad wear
Probable Causes (Ranked by Likelihood)
- Seized caliper slide pins Very High
- Corroded caliper piston High
- Damaged caliper piston seal Moderate
- Collapsed brake hose restricting flow Low
Step-by-Step Diagnostic Procedure
-
Check for hot wheels after driving
-
Inspect caliper slide pin movement
-
Check brake hose for internal collapse
-
Measure caliper piston retraction
Frequently Asked Questions
What does code C0942 mean?
C0942 indicates a fault with the brake caliper malfunction - rear left.
Can I drive with C0942?
You can drive short distances carefully. Have the brakes inspected as soon as possible.
How much does it cost to fix C0942?
Typical repair costs are $200 - $600 (parts and labor).
Sources
This page is built from documented references. Verify against your own service info before repair work.
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