C0101moderate severityChassis
Brake Pedal Position Sensor Range/Performance
on 1997 BMW 318ti E36 1.9L I4 M44 · RWD
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
C0022
RF Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0025
LF Wheel Speed Sensor Circuit Intermittent
C0026
RF Wheel Speed Sensor Circuit Intermittent
C0027
LR Wheel Speed Sensor Circuit Intermittent
C0028
RR Wheel Speed Sensor Circuit Intermittent
C0035
Left Front Wheel Speed Sensor Circuit
C0036
Left Front Wheel Speed Signal Erratic