Tire Condition Sensor - Rear Left
The C0778 code means the vehicle's onboard diagnostic system has detected: Tire Condition Sensor - Rear Left. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- easy
- Estimated cost
- $0 - $150 (parts and labor)
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Common Symptoms
- Tire monitor warning light on
- Tire wear indicator on dashboard
- Tire rotation reminder displayed
- Tire condition alert on display
Probable Causes (Ranked by Likelihood)
- Worn tires needing replacement Very High
- Failed tire condition sensor High
- Sensor communication error Moderate
- System needs calibration after tire change Low
Step-by-Step Diagnostic Procedure
-
Visually inspect tire tread depth
-
Check tire age from DOT date code
-
Test tire condition sensors
-
Reset tire monitoring system
Frequently Asked Questions
What does code C0778 mean?
C0778 indicates a fault with the tire condition sensor - rear left.
Can I drive with C0778?
You can drive but manually check tire pressures regularly.
How much does it cost to fix C0778?
Typical repair costs are $0 - $150 (parts and labor).
Sources
This page is built from documented references. Verify against your own service info before repair work.
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