OBD-II code · Powertrain (generic)
P057C Brake Pedal Position Sensor A Circuit Low
Same as P057A with the signal voltage below the plausible range. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P057C?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal shorted to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.4–1.4 h
- Emissions test
- Usually unaffected
- Parts involved
- Brake Pedal Position Sensor A
Related codes
- P05DDBrake Pedal Position Sensor B Circuit Low
- P0579Cruise Control Multi-Function Input A Circuit Range or Performance
- P057ABrake Pedal Position Sensor A Circuit Open
- P057BBrake Pedal Position Sensor A Circuit Range or Performance
- P057DBrake Pedal Position Sensor A Circuit High
- P057EBrake Pedal Position Sensor A Circuit Intermittent or Erratic
- P057FBattery A State of Charge Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.