AutoCodes – Chevrolet – B3927 Chevrolet

B3927 Chevrolet 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 Chevrolet 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 4,260

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

What does this mean?

What are the Possible Causes of the DTC B3927 Chevrolet?

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 Chevrolet?

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 Chevrolet 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 Chevrolet code?

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

Need Help with the Code?

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Information for Specific Chevrolet Models

B3927 2014 Chevrolet Silverado — Incorrect Environmental Identifier Received from Electronic Brake Control Module
B3927 2015 Chevrolet Silverado — Incorrect Environmental Identifier Received from Electronic Brake Control Module
B3927 2016 Chevrolet Silverado — Incorrect Environmental Identifier Received from Electronic Brake Control Module
B3927 2017 Chevrolet Silverado — Incorrect Environmental Identifier Received from Electronic Brake Control Module
B3927 2018 Chevrolet Silverado — Incorrect Environmental Identifier Received from Electronic Brake Control Module

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 Chevrolet Code

1. What are the common symptoms of OBDII code B3927 in a Chevrolet related to the Electronic Brake Control Module?

The common symptoms include the illumination of the ABS warning light on the dashboard, potential loss of ABS functionality, and possible issues with traction control.

2. What can cause the OBDII code B3927 in a Chevrolet indicating an Incorrect Environmental Identifier from the Electronic Brake Control Module?

This code is commonly triggered by a communication error between the Electronic Brake Control Module and other control modules due to wiring issues, faulty connections, or a malfunction in the module itself.

3. How can I diagnose the OBDII code B3927 in my Chevrolet?

To diagnose this code, a professional diagnostic scanner capable of reading ABS codes is typically required. A thorough inspection of the wiring harness, connectors, and the Electronic Brake Control Module is recommended.

4. Is it safe to drive my Chevrolet with the OBDII code B3927 present?

It is not recommended to drive with this code present, as it may affect the proper functioning of the ABS system, leading to potential safety risks. It is advisable to address the issue promptly.

5. Can I repair the OBDII code B3927 in my Chevrolet on my own?

While some basic troubleshooting steps like checking connections and fuses can be done by DIY enthusiasts, resolving issues related to the Electronic Brake Control Module may require advanced diagnostic tools and expertise. Seeking professional help is often recommended.

6. How much does it typically cost to repair the OBDII code B3927 in a Chevrolet?

The repair cost for this code can vary depending on the underlying cause. Simple fixes like repairing a loose connection may be inexpensive, while replacing a faulty Electronic Brake Control Module can be more costly. It is best to consult a mechanic for an accurate estimate.

7. Can a low battery voltage trigger the OBDII code B3927 in a Chevrolet?

Yes, a low battery voltage or electrical issues in the vehicle can sometimes lead to communication errors between modules, including the Electronic Brake Control Module, which may trigger this code.

8. Will resetting the OBDII code B3927 in my Chevrolet make it go away permanently?

Simply resetting the code without addressing the root cause will not fix the issue permanently. It is crucial to diagnose the problem, make necessary repairs, and clear the code for a lasting solution.

9. How long does it take to repair the OBDII code B3927 in a Chevrolet?

The repair time can vary depending on the complexity of the issue. Simple fixes like reconnecting a loose wire may take a short time, while more involved repairs like module replacement could require more labor hours.

10. Is the OBDII code B3927 specific to Chevrolet vehicles only?

While the code description may mention Chevrolet, similar codes related to communication errors with the Electronic Brake Control Module can occur in other vehicle makes and models as well.