AutoCodes – Chevrolet – B3924 2014 Chevrolet Silverado

B3924 2014 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 2014 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 216

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 2014 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 2014 Chevrolet Silverado - Incorrect Environmental Identifier Received from Inflatable Restraint Sensing and Diagnostic Module - AutoCodes.com — B3924 2014 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 2014 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 2014 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 2014 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 2014 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 2014 Chevrolet Silverado Code

What does OBDII code B3924 mean for a 2014 Chevrolet Silverado?

Code B3924 indicates that the Inflatable Restraint Sensing and Diagnostic Module has received an incorrect environmental identifier, which may interfere with proper airbag system operation.

What are the symptoms of code B3924 in a 2014 Chevrolet Silverado?

Symptoms typically include an illuminated airbag warning light and the potential for improper airbag deployment in certain situations.

What causes code B3924 in a 2014 Chevrolet Silverado?

Common causes include a software issue within the Inflatable Restraint Sensing and Diagnostic Module, faulty wiring, or communication errors between vehicle modules.

Can I drive my 2014 Chevrolet Silverado with code B3924 active?

While the vehicle may still be drivable, it is not recommended due to potential airbag system malfunctions, which could affect passenger safety in an accident.

How can code B3924 be diagnosed on a 2014 Chevrolet Silverado?

Diagnosis typically involves using a professional-grade scan tool to check for related error codes, inspecting wiring and connections, and verifying module communication.

What is the repair process for code B3924 in a 2014 Chevrolet Silverado?

Repairs may include reprogramming the Inflatable Restraint Module, replacing faulty wiring or connectors, or, in some cases, replacing the module itself.

Is code B3924 a common problem in the 2014 Chevrolet Silverado?

While not extremely common, this code can occur due to software or communication issues in the vehicle's airbag system.

Will clearing the code B3924 fix the issue in a 2014 Chevrolet Silverado?

Clearing the code without addressing the underlying issue will likely lead to the code returning. Proper diagnosis and repairs are necessary.

How much does it cost to fix code B3924 in a 2014 Chevrolet Silverado?

Repair costs can vary widely depending on the cause, ranging from $100 for simple wiring repairs to $1,000 or more for module replacement.

Should I take my 2014 Chevrolet Silverado to a dealership for code B3924?

Itâ€™s recommended to visit a dealership or a qualified repair shop, as they have the tools and expertise to address airbag system issues safely and accurately.