AutoCodes – GMC – P1B12 GMC

P1B12 GMC Code - Driver Intended Brake Torque Fault

Quick Answer

The Electronic Brake Control Module (EBCM) monitors the brake pedal position sensor in order to provide emission related brake pedal position information to the Engine Control Module (ECM). Common causes include Faulty Brake Pedal Position Sensor, Brake Pedal Position Sensor harness is open or shorted, Brake Pedal Position Sensor circuit poor electrical connection. 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: P1B12 GMC indicates Driver Intended Brake Torque Fault.
Common causes: Common causes include Faulty Brake Pedal Position Sensor, Brake Pedal Position Sensor harness is open or shorted, Brake Pedal Position Sensor circuit poor electrical connection.
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 906

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 Mar 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1B12 GMC Description

The Electronic Brake Control Module (EBCM) monitors the brake pedal position sensor in order to provide emission related brake pedal position information to the Engine Control Module (ECM). The EBCM sends the information, via the serial data circuit, to the ECM in a continuously repeating series of 16 rolling counts, with each count assigned a value. When the ECM determines that too many of the counts have an incorrect value, the ECM sets DTC P1B12.

OBDII Code P1B12 GMC - Driver Intended Brake Torque Fault - AutoCodes.com — P1B12 GMC Code - Driver Intended Brake Torque Fault

What does this mean?

What are the Possible Causes of the DTC P1B12 GMC?

Faulty Brake Pedal Position Sensor
Brake Pedal Position Sensor harness is open or shorted
Brake Pedal Position Sensor circuit poor electrical connection

How to Fix the DTC P1B12 GMC?

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 P1B12 GMC 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 P1B12 GMC 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 P1B12 GMC Code

1. What are the common symptoms of OBDII code P1B12 GMC (Driver Intended Brake Torque Fault)?

- Common symptoms include the illumination of the Check Engine Light (CEL), reduced braking performance, and potential issues with the vehicle's stability control system.

2. What can cause the OBDII code P1B12 GMC to trigger?

- This code can be triggered by issues such as faulty brake components, a malfunctioning brake pedal sensor, a problem with the brake control module, or wiring issues.

3. How serious is the OBDII code P1B12 GMC (Driver Intended Brake Torque Fault)?

- This code should be addressed promptly as it can affect the safety and performance of the vehicle, particularly the braking system.

4. How can I diagnose the OBDII code P1B12 GMC?

- Proper diagnosis typically involves using a diagnostic scanner to read the code, checking the brake components and sensors for any visible damage, and testing the brake system's functionality.

5. What are some repair tips for addressing the OBDII code P1B12 GMC?

- Repair tips may include checking and replacing faulty brake components, inspecting and repairing wiring connections, recalibrating the brake control module, and clearing the code with a diagnostic scanner.

6. Can I continue driving with the OBDII code P1B12 GMC present?

- It is not recommended to drive with this code present, as it can compromise the vehicle's braking performance and pose a safety risk.

7. How much does it typically cost to repair the OBDII code P1B12 GMC?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve expenses for parts replacement, sensor recalibration, and labor charges.

8. Will resetting the OBDII code P1B12 GMC make it go away permanently?

- Resetting the code without addressing the underlying issue will not make it go away permanently. It is important to diagnose and repair the root cause of the problem.

9. Can a DIY enthusiast fix the OBDII code P1B12 GMC issue?

- Depending on the individual's skills and knowledge, some DIY enthusiasts may be able to address this code by following repair guides and using the necessary tools.

10. How can I prevent the OBDII code P1B12 GMC from recurring in the future?

- Regular maintenance of the braking system, prompt addressing of any brake-related issues, and careful driving habits can help prevent the recurrence of this code.