AutoCodes – GMC – B3927 2014 GMC Sierra

B3927 2014 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 2014 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 221

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 2014 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 2014 GMC Sierra - Incorrect Environmental Identifier Received from Electronic Brake Control Module - AutoCodes.com — B3927 2014 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 2014 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 2014 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 2014 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 2014 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 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code B3927 on a 2014 GMC Sierra?

The common symptoms of code B3927 include the illumination of the ABS warning light on the dashboard and potential issues with the electronic brake control system.

2. What does the OBDII code B3927 indicate on a 2014 GMC Sierra?

Code B3927 indicates that the engine control module has received an incorrect environmental identifier from the electronic brake control module.

3. What are the possible causes of OBDII code B3927 on a 2014 GMC Sierra?

Possible causes of code B3927 include a faulty electronic brake control module, wiring issues, software glitches, or communication issues between modules.

4. How can I diagnose OBDII code B3927 on my 2014 GMC Sierra?

Diagnosing code B3927 involves using a diagnostic scanner to retrieve the trouble codes, inspecting the electronic brake control module and related wiring, and performing any necessary software updates.

5. Can I still drive my 2014 GMC Sierra with OBDII code B3927?

It is not recommended to drive your vehicle with code B3927 present, as it may affect the proper functioning of the electronic brake control system.

6. How do I repair OBDII code B3927 on a 2014 GMC Sierra?

To repair code B3927, you may need to replace the electronic brake control module, repair any damaged wiring, update software, or address communication issues between modules.

7. Will resetting the trouble codes clear OBDII code B3927 on my 2014 GMC Sierra?

Resetting the trouble codes may temporarily clear the code, but it is important to diagnose and address the underlying issue to prevent the code from reoccurring.

8. Can a DIY enthusiast fix OBDII code B3927 on a 2014 GMC Sierra?

While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing code B3927 may require advanced diagnostic tools and technical knowledge.

9. How much does it cost to repair OBDII code B3927 on a 2014 GMC Sierra?

The cost of repairing code B3927 can vary depending on the underlying issue, such as replacing the electronic brake control module, repairing wiring, or addressing communication issues.

10. Is OBDII code B3927 a common issue on 2014 GMC Sierra vehicles?

While code B3927 may not be as common as some other OBDII codes, it can still occur on 2014 GMC Sierra vehicles due to various factors affecting the electronic brake control system.