Engine-Codes.com
Engine-Codes – GMC – C0277 2017 GMC Sierra

C0277 2017 GMC Sierra Code - Brake Pedal Position Sensor Circuit

Quick Answer

The C0277 diagnostic trouble code (DTC) for the 2017 GMC Sierra specifically refers to an issue with the Brake Pedal Position Sensor Circuit. Common causes include Faulty brake pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor electrical connections. 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
C0277 2017 GMC Sierra indicates Brake Pedal Position Sensor Circuit.
Common causes
Common causes include Faulty brake pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor electrical connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code C0277 2017 GMC Sierra Description

The C0277 diagnostic trouble code (DTC) for the 2017 GMC Sierra specifically refers to an issue with the Brake Pedal Position Sensor Circuit. This sensor is responsible for detecting the position of the brake pedal and sending this information to the vehicle's electronic control module (ECM) or brake control module. The ECM uses this data to determine various functions such as brake light activation, cruise control deactivation, and anti-lock brake system (ABS) operation.

OBDII Code C0277 2017 GMC Sierra - Brake Pedal Position Sensor Circuit
C0277 2017 GMC Sierra Code - Brake Pedal Position Sensor Circuit

Common Causes of C0277 2017 GMC Sierra

  1. Faulty brake pedal position sensor.
  2. Damaged wiring or connectors in the sensor circuit.
  3. Corrosion or poor electrical connections.
  4. ECM malfunction affecting sensor communication.
  5. Physical damage to the brake pedal assembly.

Symptoms of C0277 2017 GMC Sierra

  1. ABS warning light illuminated on the dashboard.
  2. Inoperative cruise control system.
  3. Brake lights not activating when the brake pedal is pressed.
  4. Erratic behavior of the brake system, such as delayed response or inconsistent braking performance.

How to Fix C0277 2017 GMC Sierra

  1. Begin by conducting a thorough inspection of the brake pedal position sensor and its wiring harness for any visible damage or corrosion.
  2. Use a multimeter to test the sensor's resistance and voltage output to determine if it is functioning within specifications.
  3. Check the ECM for any stored fault codes related to the brake pedal position sensor circuit.
  4. Replace the sensor if it fails the resistance and voltage tests, ensuring proper installation and calibration.
  5. Clear the DTC from the vehicle's ECM memory using a diagnostic scan tool and perform a test drive to confirm that the issue has been resolved.

Cost to Fix C0277 2017 GMC Sierra

The typical repair costs for addressing a C0277 code related to the Brake Pedal Position Sensor Circuit in a 2017 GMC Sierra can range from $150 to $300, including parts and labor. However, it is important to note that actual costs may vary depending on the specific diagnosis time and labor rates at auto repair shops. Rates can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to obtain quotes from local auto repair shops to get a more accurate estimate for this repair.

What does this mean?

Tech Notes for C0277 2017 GMC Sierra

C0277:06 Brake Pedal Position Sensor Circuit Low Voltage/Open

C0277:07 Brake Pedal Position Sensor Circuit High Voltage

C0277:09 Brake Pedal Position Sensor Circuit Too Fast Transitions

C0277:12 Brake Pedal Position Sensor Circuit Below Minimum Threshold

C0277:4B Brake Pedal Position Sensor Circuit Calibration Not Learned

Need more information about the C0277 2017 GMC Sierra code?

Need more information on how to fix the C0277 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0277 2017 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 C0277 2017 GMC Sierra Code

1. What does the OBDII code C0277 mean on a 2017 GMC Sierra?

C0277 indicates an issue with the Brake Pedal Position Sensor Circuit, which monitors the position of the brake pedal and communicates with the vehicle’s control modules.

2. What are the symptoms of code C0277 on a 2017 GMC Sierra?

Common symptoms include the ABS or traction control warning light illuminating, unresponsive cruise control, or irregular brake light functionality.

3. What causes the C0277 code to appear on a 2017 GMC Sierra?

Potential causes include a faulty brake pedal position sensor, wiring issues (e.g., damaged or corroded wires), a loose connection, or a malfunctioning ABS control module.

4. Can I drive my 2017 GMC Sierra with the C0277 code?

While the vehicle may still be drivable, it’s not recommended to ignore this code as it could affect braking system performance and features like ABS and traction control.

5. How do you diagnose the C0277 code on a 2017 GMC Sierra?

Diagnosis involves scanning for additional codes, inspecting the brake pedal position sensor and its wiring, and testing the sensor’s voltage and signal output.

6. How do you fix the C0277 code on a 2017 GMC Sierra?

Repairs may include replacing the brake pedal position sensor, repairing or replacing damaged wiring, cleaning corroded connections, or reprogramming the ABS module if necessary.

7. How much does it cost to repair the C0277 code on a 2017 GMC Sierra?

Repair costs vary but typically range from $100 to $300, depending on whether the sensor, wiring, or module needs attention.

8. Can a faulty brake pedal position sensor cause other issues?

Yes, a faulty sensor can impact ABS, traction control, cruise control, and brake light operation, leading to reduced safety and drivability.

9. How can I prevent the C0277 code from reoccurring?

Regular maintenance, inspecting wiring for damage, and ensuring proper sensor calibration can help prevent this issue.

10. Does the C0277 code require professional repair, or can I fix it myself?

If you’re experienced with electrical diagnostics and have the proper tools, you may be able to fix it yourself. Otherwise, it’s recommended to seek professional assistance.

Discuss the causes and fixes for C0277 2017 GMC Sierra OBDII Code

Submit a New Comment

Code C0277 2017 GMC Sierra comments

No comments found for this page.