AutoCodesGMC – P057C 2016 GMC Sierra

P057C 2016 GMC Sierra Code - Brake Pedal Position Sensor Circuit Low Voltage

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
P057C 2016 GMC Sierra indicates Brake Pedal Position Sensor Circuit Low Voltage.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 507
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 P057C 2016 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 less than 0.25 V for greater than 1 s.
OBDII Code P057C 2016 GMC Sierra - Brake Pedal Position Sensor Circuit Low Voltage - AutoCodes.com
P057C 2016 GMC Sierra Code - Brake Pedal Position Sensor Circuit Low Voltage

What are the Possible Causes of the DTC P057C 2016 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 P057C 2016 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 P057C 2016 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 P057C 2016 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 P057C 2016 GMC Sierra Code

1. What does the OBDII code P057C mean on a 2016 GMC Sierra?

P057C indicates a "Brake Pedal Position Sensor Circuit Low Voltage," meaning the vehicle's ECU has detected an unusually low voltage signal from the brake pedal position sensor.

2. What are the symptoms of code P057C in a 2016 GMC Sierra?

Common symptoms include the check engine light turning on, issues with cruise control functionality, and erratic or unresponsive brake lights.

3. What causes the P057C code to appear in a GMC Sierra?

Potential causes include a faulty brake pedal position sensor, damaged or corroded wiring, loose electrical connections, or a malfunctioning ECM.

4. Can I drive my 2016 GMC Sierra with the P057C code?

It’s not recommended. While the vehicle may still be drivable, safety features like brake lights and cruise control could be compromised.

5. How do I fix the P057C code on my GMC Sierra?

Repairs may include replacing the brake pedal position sensor, inspecting and repairing wiring or connections, or updating/reprogramming the ECM if necessary.

6. How do I test the brake pedal position sensor on a 2016 GMC Sierra?

Use a multimeter to check the sensor's voltage output. Compare the readings to the manufacturer's specifications to determine if the sensor is faulty.

7. Where is the brake pedal position sensor located on a 2016 GMC Sierra?

The sensor is typically mounted near the brake pedal assembly, where it can monitor the pedal's position and movement.

8. Can a low battery cause the P057C code to appear?

Yes, a weak or failing battery can lead to voltage issues, which might trigger this code. Check the battery and charging system to rule this out.

9. How much does it cost to repair the P057C code on a GMC Sierra?

Repair costs can range from $100 to $300, depending on whether the issue is with the sensor, wiring, or ECM programming.

10. Will clearing the P057C code fix the problem?

Clearing the code without addressing the underlying issue will only temporarily remove it. The code will likely return if the root cause isn’t resolved.

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