C0101moderate severityChassis
Brake Pedal Position Sensor Range/Performance
on 2016 Chevrolet Impala 2.5L I4 Ecotec · AWD
What this code means
The brake pedal position sensor signal does not correlate with actual pedal travel or other brake sensors.
Symptoms
- ABS light on
- Brake assist inoperative
- Regenerative braking inconsistent
- Stability control disabled
Common causes
- Brake pedal position sensor wear
- Mechanical linkage issue
- Sensor calibration drift
- Brake pedal free play excessive
Diagnostic steps
- Compare pedal position sensor to brake pressure sensor data
- Check for dead spots in sensor range
- Inspect pedal linkage and pivot
- Verify pedal free play is within specification
- Perform sensor recalibration if applicable
Repair notes
Replace sensor if worn. Adjust pedal free play to specification.
Other Chassis codes on this vehicle
C0021
LF Wheel Speed Sensor Range/Performance
C0021
LF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0025
LF Wheel Speed Sensor Circuit Intermittent
C0025
LF Wheel Speed Sensor Circuit Intermittent