AutoCodes – GMC – P057C 2017 GMC Sierra

P057C 2017 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 2017 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 197
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 2017 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 2017 GMC Sierra - Brake Pedal Position Sensor Circuit Low Voltage - AutoCodes.com
P057C 2017 GMC Sierra Code - Brake Pedal Position Sensor Circuit Low Voltage

What are the Possible Causes of the DTC P057C 2017 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 2017 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 2017 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 2017 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 2017 GMC Sierra Code

What does the OBDII code P057C mean for a 2017 GMC Sierra?

The code P057C indicates a "Brake Pedal Position Sensor Circuit Low Voltage," meaning the brake pedal position sensor is not receiving or sending the correct voltage signals.

What are the common symptoms of code P057C in a 2017 GMC Sierra?

Symptoms may include the brake lights not functioning properly, difficulty with cruise control operation, and dashboard warning lights such as the ABS or check engine light.

What causes the P057C code to appear on a 2017 GMC Sierra?

Common causes include a faulty brake pedal position sensor, damaged wiring or connectors in the sensor circuit, or low system voltage.

Can you drive a 2017 GMC Sierra with the P057C code?

While the vehicle may still be drivable, issues like malfunctioning brake lights or cruise control can pose safety risks and should be addressed as soon as possible.

How do you diagnose the P057C code in a 2017 GMC Sierra?

A technician will use an OBDII scanner to read the code, visually inspect the brake pedal position sensor and its wiring, and test the voltage in the sensor circuit.

How can the P057C code be fixed on a 2017 GMC Sierra?

Repairs may include replacing the brake pedal position sensor, repairing or replacing damaged wiring, or clearing the code after resolving the issue.

What tools are needed to fix the P057C code on a 2017 GMC Sierra?

Basic tools include an OBDII scanner, multimeter for voltage testing, and possibly a socket set or screwdriver to remove and replace the sensor.

How much does it cost to repair the P057C code on a 2017 GMC Sierra?

Costs vary but typically range from $100 to $300 for parts and labor, depending on whether the sensor or wiring needs replacement.

Can a weak battery cause the P057C code on a 2017 GMC Sierra?

Yes, a weak or failing battery can lead to low system voltage, which may trigger the P057C code.

How do you prevent the P057C code from recurring on a 2017 GMC Sierra?

Regular maintenance, including inspecting wiring for damage and ensuring the battery is in good condition, can help prevent this issue.

Discuss the causes and fixes for P057C 2017 GMC Sierra OBDII Code

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