C0131
Brake Pad Wear Sensor Circuit Rear
2002-2009 GMC Envoy 4.2L I6
Moderate SeverityChassisGeneric (SAE)
Description
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
Repair Notes
Replace rear brake pads and wear sensors.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0025LF Wheel Speed Sensor Circuit Intermittent
C0131 on Other Vehicles
Common Questions
What does code C0131 mean on a 2002-2009 GMC Envoy?
C0131 stands for "Brake Pad Wear Sensor Circuit Rear". The rear brake pad wear sensor indicates pads are worn or the circuit is faulty.
What are the symptoms of C0131 on a GMC Envoy?
Common symptoms of C0131 include: Brake pad warning light, Service message for rear brakes, Reduced braking from rear.
What causes C0131 on a 2002-2009 GMC Envoy?
Common causes of C0131 include: Rear brake pads at minimum thickness, Wear sensor wire damaged, Connector not reattached after service.