AutoCodes – Chevrolet – B3927 2018 Chevrolet Silverado

B3927 2018 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 2018 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 379

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 2018 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 2018 Chevrolet Silverado - Incorrect Environmental Identifier Received from Electronic Brake Control Module - AutoCodes.com — B3927 2018 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 2018 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 2018 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 2018 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 2018 Chevrolet Silverado code?

Need more information on how to fix the B3927 2018 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 2018 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B3927 in a 2018 Chevrolet Silverado?

- The common symptoms include the illumination of the check engine light, potential traction control issues, and a decrease in overall braking performance.

2. What does the OBDII code B3927 "Incorrect Environmental Identifier Received from Electronic Brake Control Module" mean for a 2018 Chevrolet Silverado?

- This code indicates a communication error between the vehicle's electronic brake control module and other components, possibly due to incorrect environmental data being received.

3. What are the possible causes of OBDII code B3927 in a 2018 Chevrolet Silverado?

- The code may be triggered by a faulty electronic brake control module, damaged wiring or connectors, software glitches, or environmental conditions affecting the communication signals.

4. How can I diagnose OBDII code B3927 in my 2018 Chevrolet Silverado?

- Diagnosis involves using an OBDII scanner to retrieve the specific code, checking for any related codes, inspecting the brake control module and its connections, and testing the vehicle under different environmental conditions.

5. Is it safe to drive my 2018 Chevrolet Silverado with OBDII code B3927 active?

- It is not recommended to drive the vehicle with this code active, as it may affect crucial safety systems like traction control and braking performance. Immediate attention and repair are advised.

6. Can I reset the OBDII code B3927 in my 2018 Chevrolet Silverado by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is crucial to address the underlying issue causing the code to prevent it from reoccurring. A proper diagnosis and repair are recommended.

7. How much does it typically cost to repair OBDII code B3927 in a 2018 Chevrolet Silverado?

- The cost of repair can vary depending on the exact cause of the code. It may involve replacing the electronic brake control module, repairing wiring issues, or addressing software-related issues. Costs can range from a few hundred to over a thousand dollars.

8. Can environmental factors like extreme temperatures trigger OBDII code B3927 in a 2018 Chevrolet Silverado?

- Yes, extreme temperatures or other environmental conditions can impact the communication signals between components, potentially leading to the triggering of code B3927. It is essential to consider environmental factors during diagnosis and repair.

9. Are there any DIY tips for addressing OBDII code B3927 in a 2018 Chevrolet Silverado?

- While some basic checks like inspecting connections and wiring can be done DIY, diagnosing and repairing this code often requires specialized tools and expertise. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

10. How long does it take to repair OBDII code B3927 in a 2018 Chevrolet Silverado?

- The repair time can vary depending on the exact cause of the code and the availability of parts. Simple fixes like reconnecting a loose wire may take a short time, while more complex issues like module replacement can take several hours to complete.