Brake Pedal Position Sensor A Circuit Range or Performance
Same as P057A with the signal in plausible range yet not matching the brake-light switch state - typical for a sensor offset against pedal travel or a worn potentiometer track.
Affected components
- Brake pedal position sensor a
Common causes
- High likelihood: Potentiometer track worn
Diagnostic notes
- The malfunction indicator lamp may illuminate
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.