OBD Guide

P057C

Brake Pedal Position Sensor A Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Disabling cruise control
  • Incorrect operation of brake lights
  • Check engine light comes on

Causes

  • Malfunction of the brake pedal position sensor
  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the brake pedal position sensor for damage.
  2. Check the wiring harness and connectors for damage or corrosion.
  3. Check the voltage and resistance in the sensor circuit
  4. If necessary, replace the sensor or repair the wiring harness

Related codes

Error P057C by Vehicle Brand