AutoCodes – Generic – C0297

C0297 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 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 2,734

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 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 - Brake Applied Output Circuit - AutoCodes.com — C0297 Code - Brake Applied Output Circuit

What does this mean?

What are the Possible Causes of the DTC C0297?

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?

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 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 code?

Need more information on how to fix the C0297 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0297 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C0297 Buick — Brake Applied Output Circuit
C0297 Cadillac — Brake Applied Output Circuit
C0297 Chevrolet — Brake Applied Output Circuit
C0297 GMC — Brake Applied Output Circuit

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 Code

1. What are common symptoms of OBDII code C0297?

- Common symptoms include the brake warning light illuminating on the dashboard, loss of brake power assist, and potential difficulty braking.

2. What does the OBDII code C0297 indicate?

- OBDII code C0297 indicates a problem with the Brake Applied Output Circuit, which is related to the electronic control of the brake system.

3. What are possible causes of OBDII code C0297?

- Possible causes include a faulty brake pedal position sensor, damaged wiring or connectors in the brake system, or a malfunctioning brake control module.

4. How can I diagnose the issue related to OBDII code C0297?

- Diagnosing the issue involves using a scan tool to retrieve the code, checking the brake system components for damage, and testing the brake control module for proper function.

5. Can I drive my vehicle with OBDII code C0297?

- It is not recommended to drive the vehicle with OBDII code C0297, as it can affect the proper functioning of the brake system and compromise safety.

6. How can I repair OBDII code C0297?

- Repairing OBDII code C0297 may involve replacing the faulty brake pedal position sensor, repairing damaged wiring or connectors, or replacing the brake control module.

7. Are there any DIY tips for addressing OBDII code C0297?

- DIY tips may include checking and cleaning the connectors in the brake system, ensuring proper grounding, and following the manufacturer's diagnostic procedures.

8. How urgent is it to address OBDII code C0297?

- It is crucial to address OBDII code C0297 promptly to ensure the safe operation of the vehicle and prevent potential brake system failures.

9. Can OBDII code C0297 be intermittent?

- Yes, OBDII code C0297 can sometimes be intermittent, depending on the underlying cause. It is essential to address the issue even if it appears sporadically.

10. Should I reset the OBDII code C0297 after repairs?

- After making the necessary repairs to address OBDII code C0297, it is recommended to clear the code using a scan tool to reset the system and ensure proper functionality.