AutoCodes – GMC – C0297 2018 GMC Sierra

C0297 2018 GMC Sierra Code - Brake Applied Output Circuit

Quick Answer

The brake pedal position 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 Body Control Module (BCM), Body Control Module 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: C0297 2018 GMC Sierra indicates Brake Applied Output Circuit.
Common causes: Common causes include Brake Pedal Position Sensor Calibration, Faulty Body Control Module (BCM), Body Control Module 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 201

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 05, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0297 2018 GMC Sierra Description

The brake pedal position 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 Body Control Module (BCM) provides a low reference signal and a 5 V reference voltage to the brake pedal position sensor. When the variable signal reaches a voltage threshold indicating the brakes have been applied, the BCM will apply battery voltage to the right and left stop lamp control circuits, Engine Control Module (ECM), and center high-mounted stop lamp relay control circuit. The Diagnostic Trouble Code (DTC) will be set when the BCM detects an improper signal in the brake applied signal circuit.

OBDII Code C0297 2018 GMC Sierra - Brake Applied Output Circuit - AutoCodes.com — C0297 2018 GMC Sierra Code - Brake Applied Output Circuit

What does this mean?

What are the Possible Causes of the DTC C0297 2018 GMC Sierra?

Brake Pedal Position Sensor Calibration
Faulty Body Control Module (BCM)
Body Control Module harness is open or shorted
Body Control Module circuit poor electrical connection

How to Fix the DTC C0297 2018 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 C0297 2018 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 C0297 2018 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 C0297 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code C0297 on a 2018 GMC Sierra?

- Common symptoms include the Service Brake System warning light illuminating on the dashboard and potential issues with the brake system's operation.

2. What does the OBDII code C0297 Brake Applied Output Circuit indicate for a 2018 GMC Sierra?

- This code indicates a problem with the brake applied output circuit, which may affect the vehicle's braking performance and safety.

3. What are the possible causes of OBDII code C0297 on a 2018 GMC Sierra?

- Possible causes include faulty brake pedal position sensor, wiring issues in the brake system, malfunctioning brake control module, or a problem with the brake pedal switch.

4. How can I diagnose and repair OBDII code C0297 on my 2018 GMC Sierra?

- Diagnosis involves inspecting the brake system components, checking for loose or damaged wiring, and using a diagnostic scanner to pinpoint the exact cause. Repair may involve replacing faulty sensors or repairing wiring connections.

5. Is it safe to drive my 2018 GMC Sierra with OBDII code C0297 present?

- It is not recommended to drive the vehicle with this code present, as it can affect the proper functioning of the brake system and compromise safety. It is advisable to address the issue promptly.

6. Can OBDII code C0297 on a 2018 GMC Sierra be reset without fixing the underlying problem?

- While you can clear the code using an OBDII scanner, it is crucial to address the root cause of the issue to prevent it from reoccurring and ensure the proper functioning of the brake system.

7. How much does it typically cost to repair OBDII code C0297 on a 2018 GMC Sierra?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve replacing sensors, repairing wiring, or addressing control module problems. Costs can range from a few hundred to over a thousand dollars.

8. Can a DIY enthusiast fix OBDII code C0297 on a 2018 GMC Sierra?

- While some basic troubleshooting and repairs can be done by DIY enthusiasts, diagnosing and repairing complex brake system issues like C0297 may require specialized tools and expertise. It is recommended to consult a professional mechanic.

9. How long does it take to repair OBDII code C0297 on a 2018 GMC Sierra?

- The repair time can vary based on the specific cause of the issue and the extent of the repair needed. Simple fixes may take a few hours, while more complex repairs could require a day or more to complete.

10. Will OBDII code C0297 on a 2018 GMC Sierra affect the vehicle's performance?

- Yes, this code can potentially impact the vehicle's performance by causing issues with the brake system, affecting braking response, and triggering warning lights. Addressing the problem promptly is important to maintain optimal performance and safety.