AutoCodes – GMC – B3927 2017 GMC Sierra

B3927 2017 GMC Sierra Code - Incorrect Environmental Identifier Received from Electronic Brake Control Module

Quick Answer

When certain modules are programmed and configured during installation, the module learns a specific environment identifier which is unique to the vehicle. Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module harness is open or shorted, Electronic Brake Control Module 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: B3927 2017 GMC Sierra indicates Incorrect Environmental Identifier Received from Electronic Brake Control Module.
Common causes: Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module harness is open or shorted, Electronic Brake Control Module 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 192

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 16, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3927 2017 GMC Sierra Description

When certain modules are programmed and configured during installation, the module learns a specific environment identifier which is unique to the vehicle. The environment identifier is used to prevent the swapping of control modules between vehicles. The Body Control Module (BCM) is the keeper of the environment identifier. The instrument cluster, electronic brake control module, Heating, Ventilation, and Air Conditioning (HVAC) Control Module, inflatable restraint sensing and diagnostic module, and telematics communication interface control module each learn the environment identifier during their configuration process. During vehicle operation, the BCM sends the immobilizer identifier as a challenge and each module responds to the challenge by sending the environment identifier back to the BCM. If the BCM sends an incorrect immobilizer identifier or a specific number of incorrect environment identifiers are received, vehicle starting is disabled.
The Diagnostic Trouble Code (DTC) sets when the control module's environment identifier does not match the environment identifier stored by the BCM.

OBDII Code B3927 2017 GMC Sierra - Incorrect Environmental Identifier Received from Electronic Brake Control Module - AutoCodes.com — B3927 2017 GMC Sierra Code - Incorrect Environmental Identifier Received from Electronic Brake Control Module

What does this mean?

What are the Possible Causes of the DTC B3927 2017 GMC Sierra?

Faulty Electronic Brake Control Module (EBCM)
Electronic Brake Control Module harness is open or shorted
Electronic Brake Control Module circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B3927 2017 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 B3927 2017 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 B3927 2017 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 B3927 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code B3927 in a 2017 GMC Sierra?

The common symptoms of OBDII code B3927, "Incorrect Environmental Identifier Received from Electronic Brake Control Module," in a 2017 GMC Sierra may include the ABS warning light illuminated on the dashboard and potential issues with the vehicle's braking system.

2. What could cause the OBDII code B3927 to trigger in a 2017 GMC Sierra?

The OBDII code B3927 can trigger in a 2017 GMC Sierra due to a communication error between the electronic brake control module and other relevant modules in the vehicle's network, such as the body control module or engine control module.

3. How can I diagnose the OBDII code B3927 in my 2017 GMC Sierra?

Diagnosing the OBDII code B3927 in a 2017 GMC Sierra typically involves using a diagnostic scanner to retrieve the error code, checking for any related codes, inspecting the wiring and connectors related to the electronic brake control module, and performing a visual inspection of the brake system components.

4. What are some repair tips for resolving the OBDII code B3927 in a 2017 GMC Sierra?

Repair tips for resolving the OBDII code B3927 in a 2017 GMC Sierra may include checking and repairing any damaged wiring or connectors, ensuring proper communication between modules, resetting the fault codes, and verifying the repair by performing a test drive to confirm the issue is resolved.

5. Can I drive my 2017 GMC Sierra with the OBDII code B3927 present?

It is not recommended to drive a 2017 GMC Sierra with the OBDII code B3927 present, as it indicates a potential issue with the electronic brake control module that could affect the vehicle's braking performance and safety. It is advisable to address the issue promptly.

6. Is it safe to ignore the OBDII code B3927 in my 2017 GMC Sierra?

Ignoring the OBDII code B3927 in a 2017 GMC Sierra is not recommended, as it can lead to potential safety risks due to issues with the electronic brake control module. It is advisable to diagnose and repair the underlying problem as soon as possible.

7. How much does it typically cost to repair the OBDII code B3927 in a 2017 GMC Sierra?

The cost of repairing the OBDII code B3927 in a 2017 GMC Sierra can vary depending on the root cause of the issue, labor costs, and parts needed for the repair. It is recommended to consult with a professional mechanic for an accurate estimate.

8. Can a DIY enthusiast fix the OBDII code B3927 issue in a 2017 GMC Sierra?

While some DIY enthusiasts may be able to address simple issues related to the OBDII code B3927, it is recommended to seek assistance from a professional mechanic or technician for complex electronic brake control module problems to ensure proper diagnosis and repair.

9. Will resetting the OBDII code B3927 in my 2017 GMC Sierra make it go away permanently?

Resetting the OBDII code B3927 in a 2017 GMC Sierra may temporarily clear the error code, but if the underlying issue with the electronic brake control module persists, the code is likely to reappear. It is crucial to diagnose and address the root cause of the problem for a permanent solution.

10. How can I prevent the OBDII code B3927 from recurring in my 2017 GMC Sierra?

To prevent the OBDII code B3927 from recurring in a 2017 GMC Sierra, it is essential to perform regular maintenance on the vehicle, address any related fault codes promptly, ensure proper communication between modules, and follow recommended service intervals provided by the manufacturer.