AutoCodesGMC – P057B 2014 GMC Sierra

P057B 2014 GMC Sierra Code - Brake Pedal Position Sensor Performance

Quick Answer

The Brake Pedal Position (BPP) sensor is used to sense the action of the driver's application of the brake pedal. Common causes include Brake Pedal Position Sensor Calibration, Faulty Brake Pedal Position Sensor, Brake Pedal Position Sensor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P057B 2014 GMC Sierra indicates Brake Pedal Position Sensor Performance.
Common causes
Common causes include Brake Pedal Position Sensor Calibration, Faulty Brake Pedal Position Sensor, Brake Pedal Position Sensor harness is open or shorted.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 168
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 14, 2022
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Code P057B 2014 GMC Sierra Description

The Brake Pedal Position (BPP) sensor is used to sense the action of the driver's application of the brake pedal. The Brake Pedal Position Sensor provides an analog voltage signal that will increase as the brake pedal is applied. The Brake Pedal Position Sensor contains 2 potentiometer-type brake pedal position sensors. When the pedal is pressed, the voltage of one sensor goes up and the voltage of the other sensor goes down. The Diagnostic Trouble Code (DTC) will be set when the Brake Pedal Position Sensor is stuck in a range for greater than 1 s.
OBDII Code P057B 2014 GMC Sierra - Brake Pedal Position Sensor Performance - AutoCodes.com
P057B 2014 GMC Sierra Code - Brake Pedal Position Sensor Performance

What are the Possible Causes of the DTC P057B 2014 GMC Sierra?

  • Brake Pedal Position Sensor Calibration
  • Faulty Brake Pedal Position Sensor
  • Brake Pedal Position Sensor harness is open or shorted
  • Brake Pedal Position Sensor circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P057B 2014 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P057B 2014 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P057B 2014 GMC Sierra code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P057B 2014 GMC Sierra Code

1. What does OBDII code P057B mean on a 2014 GMC Sierra?

P057B indicates a Brake Pedal Position Sensor Performance issue, meaning the sensor is not functioning within the expected parameters.

2. What are the symptoms of code P057B on a GMC Sierra?

Common symptoms include illumination of the check engine light, cruise control malfunction, or brake lights not operating correctly.

3. What causes code P057B on a 2014 GMC Sierra?

Possible causes include a faulty brake pedal position sensor, damaged wiring or connectors, or issues with the vehicle's powertrain control module (PCM).

4. Can I drive my GMC Sierra with code P057B?

While the vehicle may still be drivable, it’s not recommended as it could affect safety features like brake lights and cruise control functionality.

5. How do I fix code P057B on my 2014 GMC Sierra?

Repairs may involve replacing the brake pedal position sensor, repairing damaged wiring, or recalibrating the sensor using diagnostic tools.

6. How is the brake pedal position sensor tested for P057B?

A mechanic will use a scan tool to monitor the sensor's readings and check for irregularities, as well as inspect the wiring and connectors for damage.

7. Is code P057B related to the vehicle's cruise control system?

Yes, a faulty brake pedal position sensor can disable the cruise control system as it’s used to determine when the brakes are applied.

8. How much does it cost to fix code P057B on a GMC Sierra?

Repair costs vary but typically range from $150 to $300, depending on whether the sensor needs replacement or if wiring repairs are required.

9. Can a dead battery cause code P057B on a 2014 GMC Sierra?

A dead or weak battery is unlikely to directly cause this code, but voltage issues could indirectly affect sensor performance.

10. Does the brake pedal position sensor require calibration after replacement?

Yes, in many cases, the sensor needs to be calibrated using a scan tool to ensure proper operation after replacement.

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