OBD Guide

P057B

Brake Pedal Position Sensor A Circuit Range/Performance

P057B is an OBD-II diagnostic trouble code meaning: Brake Pedal Position Sensor A Circuit Range/Performance. Common causes: brake pedal position sensor a malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect operation of the braking system
  • Disabling cruise control
  • Check engine light comes on
  • Unstable brake pedal operation

Causes

  • Brake pedal position sensor A malfunction
  • Open or short circuit in wiring harness
  • Poor contact in sensor connectors
  • Mechanical problems with the brake pedal
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check brake pedal position sensor A for damage.
  2. Check the integrity of the wiring harness and connectors
  3. Measure resistance and voltage at the sensor
  4. If necessary, replace the sensor or repair the wiring harness
  5. Reset the error code and check if it returns

Related codes

Error P057B by Vehicle Brand

FAQ

What does the P057B code mean?

P057B is an OBD-II diagnostic trouble code that indicates: Brake Pedal Position Sensor A Circuit Range/Performance

What causes a P057B error code?

The most common causes of P057B include: Brake pedal position sensor A malfunction; Open or short circuit in wiring harness; Poor contact in sensor connectors; Mechanical problems with the brake pedal.

How do I fix a P057B diagnostic trouble code?

To fix P057B: Check brake pedal position sensor A for damage.. Check the integrity of the wiring harness and connectors. Measure resistance and voltage at the sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P057B?

Do not drive — repair immediately

How much does it cost to fix P057B?

The estimated repair cost for P057B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat