AutoCodes – Chevrolet – B3924 2016 Chevrolet Silverado

B3924 2016 Chevrolet Silverado Code - Incorrect Environmental Identifier Received from Inflatable Restraint Sensing and Diagnostic 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 Inflatable Restraint Sensing and Diagnostic Module, Inflatable Restraint Sensing and Diagnostic Module harness is open or shorted, Inflatable Restraint Sensing and Diagnostic 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: B3924 2016 Chevrolet Silverado indicates Incorrect Environmental Identifier Received from Inflatable Restraint Sensing and Diagnostic Module.
Common causes: Common causes include Faulty Inflatable Restraint Sensing and Diagnostic Module, Inflatable Restraint Sensing and Diagnostic Module harness is open or shorted, Inflatable Restraint Sensing and Diagnostic 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 207

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 B3924 2016 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 B3924 2016 Chevrolet Silverado - Incorrect Environmental Identifier Received from Inflatable Restraint Sensing and Diagnostic Module - AutoCodes.com — B3924 2016 Chevrolet Silverado Code - Incorrect Environmental Identifier Received from Inflatable Restraint Sensing and Diagnostic Module

What does this mean?

What are the Possible Causes of the DTC B3924 2016 Chevrolet Silverado?

Faulty Inflatable Restraint Sensing and Diagnostic Module
Inflatable Restraint Sensing and Diagnostic Module harness is open or shorted
Inflatable Restraint Sensing and Diagnostic Module circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B3924 2016 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 B3924 2016 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 B3924 2016 Chevrolet Silverado 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 B3924 2016 Chevrolet Silverado Code

1. What does OBDII code B3924 mean for my 2016 Chevrolet Silverado?

- This code indicates that the Inflatable Restraint Sensing and Diagnostic Module has received an incorrect environmental identifier.

2. What are the common symptoms of OBDII code B3924 in a 2016 Chevrolet Silverado?

- Common symptoms may include the airbag warning light illuminating on the dashboard and potential issues with the vehicle's airbag system.

3. What are the possible causes of OBDII code B3924 on a 2016 Chevrolet Silverado?

- The code may be triggered by a faulty Inflatable Restraint Sensing and Diagnostic Module, damaged wiring, or a communication error within the airbag system.

4. How serious is OBDII code B3924 in a 2016 Chevrolet Silverado?

- This code should be addressed promptly, as it relates to the vehicle's airbag system, which is crucial for occupant safety in the event of a collision.

5. Can I continue driving my 2016 Chevrolet Silverado with OBDII code B3924 present?

- It is not recommended to continue driving the vehicle with this code active, as it may indicate a potential issue with the airbag system's functionality.

6. How can I diagnose OBDII code B3924 on my 2016 Chevrolet Silverado?

- Diagnosing this code typically requires a professional scan tool to access the airbag system's module for detailed troubleshooting.

7. What repairs are typically needed to fix OBDII code B3924 on a 2016 Chevrolet Silverado?

- Repairs may involve replacing the Inflatable Restraint Sensing and Diagnostic Module, repairing damaged wiring, or addressing any communication faults in the airbag system.

8. Can I reset OBDII code B3924 on my 2016 Chevrolet Silverado without addressing the underlying issue?

- While you can clear the code with a scan tool, it is crucial to address the root cause to ensure the proper functioning of the airbag system.

9. How much does it cost to repair OBDII code B3924 on a 2016 Chevrolet Silverado?

- Repair costs can vary depending on the specific issue causing the code, so it is recommended to consult with a professional technician for an accurate estimate.

10. Is OBDII code B3924 a common issue in 2016 Chevrolet Silverado vehicles?

- While it may not be extremely common, encountering this code can happen due to various factors affecting the airbag system's operation in the vehicle.