OBD Guide

P057A

Brake Pedal Position Sensor A Circuit/Open

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

Symptoms

  • Incorrect operation of cruise control
  • Problems with the emergency braking system
  • Check Engine light comes on

Causes

  • Open brake pedal position sensor circuit
  • Malfunction of the brake pedal position sensor
  • Contact corrosion
  • Wiring harness damage

How to Fix

  1. Check the integrity of the wiring harness
  2. Check sensor resistance and voltage
  3. Replace sensor if necessary
  4. Clean contacts from corrosion

Related codes

Error P057A by Vehicle Brand