P057C
Brake Pedal Position Sensor A Circuit Low
Generic OBD-II
Real-world scan data
Seen in
37
scans in the past year
Found in
<0.1%
of scans
<0.1%
of scans that found faults
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Check the brake pedal position sensor wiring for any loose or damaged connections
- Inspect and clean the brake pedal position sensor to ensure proper functionality
- Replace the brake pedal position sensor if it is found to be malfunctioning or damaged
- Check the vehicle's brake fluid levels and ensure they are at the proper level
Common causes
Most likely first
- Malfunction or failure of the brake pedal position sensor
- Loose or corroded electrical connections related to the brake pedal position sensor
- Faulty wiring or circuitry in the brake pedal position sensor circuit
- Issues with the brake fluid level or pressure
- Possible malfunction or failure of the brake control module
How to diagnose & fix
Work through it in order
- Brake pedal feels spongy or soft
- Brake pedal may be unresponsive or slow to engage
- ABS warning light may be illuminated on the dashboard
- Vehicle may experience difficulty or delay in shifting gears
- Vehicle may exhibit erratic or inconsistent braking performance
Read & clear P057C yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.