C0131
ChassisBrake Systemmoderate severityBrake Pad Wear Sensor Circuit Rear
What C0131 Means
The rear brake pad wear sensor indicates pads are worn or the circuit is faulty.
Symptoms
- Brake pad warning light
- Service message for rear brakes
- Reduced braking from rear
Common Causes
- Rear brake pads at minimum thickness
- Wear sensor wire damaged
- Connector not reattached after service
Diagnostic Steps
- Check rear brake pad thickness
- Inspect wear sensor wire
- Check sensor connector
- Measure pad thickness
Where to start: Replace rear brake pads and wear sensors.
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