Brake Rotor Temperature Sensor - Rear Left
The C0930 code means the vehicle's onboard diagnostic system has detected: Brake Rotor Temperature Sensor - Rear Left. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $200 - $500 (parts and labor)
Basic scanners cannot read ABS codes. BlueDriver reads all systems including ABS, SRS, and transmission through your phone.
Check Price on AmazonAffiliate link -- we earn a commission at no extra cost to you.
Basic scanners cannot read ABS codes. This one reads all four systems so you know exactly which sensor failed.
Check Price on AmazonAffiliate link -- we earn a commission at no extra cost to you.
Common Symptoms
- Brake pedal pulsation
- Vibration during braking
- Brake squeal or grinding
- Steering wheel shimmy when braking
Probable Causes (Ranked by Likelihood)
- Worn brake rotor below minimum thickness Very High
- Warped brake rotor from overheating High
- Uneven rotor wear from stuck caliper Moderate
- Failed rotor temperature sensor Low
Step-by-Step Diagnostic Procedure
-
Measure rotor thickness with micrometer
-
Check rotor runout with dial indicator
-
Inspect rotor surface for hot spots or cracks
-
Test rotor temperature sensor circuit
Frequently Asked Questions
What does code C0930 mean?
C0930 indicates a fault with the brake rotor temperature sensor - rear left.
Can I drive with C0930?
You can drive short distances carefully. Have the brakes inspected as soon as possible.
How much does it cost to fix C0930?
Typical repair costs are $200 - $500 (parts and labor).
Sources
This page is built from documented references. Verify against your own service info before repair work.
Explore More
Was this helpful?
Share carcodefinder.com with a friend who needs to decode their check engine light.