AutoCodes – GMC – B3631 2015 GMC Sierra

B3631 2015 GMC Sierra Code - Adjustable Foot Pedal Inhibit Circuit

Quick Answer

Voltage to the adjustable pedal switch is supplied through the park enable relay while in a de-energized state. Common causes include Faulty Instrument Panel Fuse Block, Instrument Panel Fuse Block harness is open or shorted, Instrument Panel Fuse Block 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: B3631 2015 GMC Sierra indicates Adjustable Foot Pedal Inhibit Circuit.
Common causes: Common causes include Faulty Instrument Panel Fuse Block, Instrument Panel Fuse Block harness is open or shorted, Instrument Panel Fuse Block 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 279

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 Jun 14, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3631 2015 GMC Sierra Description

Voltage to the adjustable pedal switch is supplied through the park enable relay while in a de-energized state. The transmission park relay is controlled by the Body Control Module (BCM) through a low side drive control circuit and will be energized whenever the ignition is in the accessory, run, or crank positions and the transmission is in the P (Park) position. The Diagnostic Trouble Code (DTC) sets when the BCM detects a short to ground on the transmission park relay control circuit while attempting to activate the output.

OBDII Code B3631 2015 GMC Sierra - Adjustable Foot Pedal Inhibit Circuit - AutoCodes.com — B3631 2015 GMC Sierra Code - Adjustable Foot Pedal Inhibit Circuit

What does this mean?

What are the Possible Causes of the DTC B3631 2015 GMC Sierra?

Faulty Instrument Panel Fuse Block
Instrument Panel Fuse Block harness is open or shorted
Instrument Panel Fuse Block circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B3631 2015 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 B3631 2015 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 B3631 2015 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 B3631 2015 GMC Sierra Code

1. What does OBDII code B3631 for a 2015 GMC Sierra indicate?

The B3631 code specifically relates to the Adjustable Foot Pedal Inhibit Circuit in the vehicle.

2. What are the common symptoms associated with OBDII code B3631 on a 2015 GMC Sierra?

Common symptoms include issues with the adjustable foot pedals, such as failure to adjust or being stuck in a certain position.

3. What are the potential causes of OBDII code B3631 on a 2015 GMC Sierra?

Possible causes may include a faulty adjustable foot pedal sensor, wiring issues, or a malfunction in the control module.

4. How can I diagnose the source of OBDII code B3631 on my 2015 GMC Sierra?

To diagnose the issue, it's recommended to perform a thorough inspection of the adjustable foot pedal system, check for any visible wiring damage, and use a diagnostic scan tool to pinpoint the exact problem.

5. Can I still drive my 2015 GMC Sierra with OBDII code B3631 present?

While the vehicle may still be drivable with this code, it's advisable to address the underlying issue promptly to ensure proper functionality of the adjustable foot pedals.

6. What are some DIY repair tips for fixing OBDII code B3631 on a 2015 GMC Sierra?

DIY repair tips may include checking and repairing any damaged wiring, replacing the adjustable foot pedal sensor if needed, and resetting the control module after the repairs.

7. Is it safe to reset the OBDII code B3631 on a 2015 GMC Sierra without fixing the underlying problem?

It's not recommended to simply reset the code without addressing the root cause, as the issue may persist and potentially affect the vehicle's performance.

8. How much does it typically cost to repair OBDII code B3631 on a 2015 GMC Sierra?

Repair costs can vary depending on the exact cause of the code and whether you opt for DIY repairs or seek professional assistance. It's advisable to obtain quotes from reputable mechanics.

9. Are there any recalls or technical service bulletins related to OBDII code B3631 for a 2015 GMC Sierra?

It's recommended to check with GMC or visit their official website to see if there are any recalls or technical service bulletins related to this specific OBDII code for your vehicle.

10. Can OBDII code B3631 on a 2015 GMC Sierra cause other vehicle systems to malfunction?

While the B3631 code specifically relates to the Adjustable Foot Pedal Inhibit Circuit, it's possible that issues with this system could potentially affect other related systems in the vehicle.