AutoCodes – Chevrolet – B3927 2015 Chevrolet Silverado

B3927 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado 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 212

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 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado - Incorrect Environmental Identifier Received from Electronic Brake Control Module - AutoCodes.com — B3927 2015 Chevrolet Silverado Code - Incorrect Environmental Identifier Received from Electronic Brake Control Module

What does this mean?

What are the Possible Causes of the DTC B3927 2015 Chevrolet Silverado?

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 2015 Chevrolet Silverado?

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 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado code?

Need more information on how to fix the B3927 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B3927 on a 2015 Chevrolet Silverado?

The common symptoms include the illumination of the Check Engine light, issues with the electronic brake control system, and potential difficulty in braking.

2. What does the OBDII code B3927 mean for a 2015 Chevrolet Silverado?

OBDII code B3927 indicates that the vehicle's 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 2015 Chevrolet Silverado?

Possible causes of this code include a faulty electronic brake control module, wiring issues, poor connections, or software glitches in the vehicle's systems.

4. How can I diagnose OBDII code B3927 on my 2015 Chevrolet Silverado?

Diagnosing this code typically involves using a diagnostic scanner to retrieve the code, inspecting the electronic brake control module and related wiring, and conducting a thorough visual inspection for any visible issues.

5. Is it safe to drive with OBDII code B3927 present on a 2015 Chevrolet Silverado?

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

6. Can I reset OBDII code B3927 on my 2015 Chevrolet Silverado and see if it comes back?

While you can reset the code, it is important to diagnose and address the underlying issue causing the code to prevent it from reoccurring and potentially causing more serious problems.

7. How much does it typically cost to repair OBDII code B3927 on a 2015 Chevrolet Silverado?

The cost of repairing this code can vary depending on the exact cause of the issue, but it may involve replacing the electronic brake control module or addressing wiring problems, with costs ranging from a few hundred to over a thousand dollars.

8. Can a DIY enthusiast fix OBDII code B3927 on a 2015 Chevrolet Silverado?

While some basic troubleshooting and inspections can be done by a DIY enthusiast, diagnosing and repairing this code may require specialized tools and expertise, so it is often best left to professional mechanics.

9. How long does it take to repair OBDII code B3927 on a 2015 Chevrolet Silverado?

The repair duration can vary based on the specific cause and complexity of the issue. It may take a few hours to a full day for the diagnosis and repair to be completed by a qualified technician.

10. Will OBDII code B3927 cause my 2015 Chevrolet Silverado to fail an emissions test?

If left unresolved, OBDII code B3927 may affect the vehicle's emissions control system, potentially leading to a failed emissions test. It is advisable to address the issue promptly to ensure compliance with emission regulations.