AutoCodes – Chevrolet – B3924 2015 Chevrolet Silverado

B3924 2015 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 2015 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 242

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 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 B3924 2015 Chevrolet Silverado - Incorrect Environmental Identifier Received from Inflatable Restraint Sensing and Diagnostic Module - AutoCodes.com — B3924 2015 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 2015 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 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 B3924 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 B3924 2015 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 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B3924 in a 2015 Chevrolet Silverado?

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

2. What does the OBDII code B3924 indicate in a 2015 Chevrolet Silverado?

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

3. What are possible causes of OBDII code B3924 in a 2015 Chevrolet Silverado?

- Possible causes include a malfunctioning Inflatable Restraint Sensing and Diagnostic Module, wiring issues, or a faulty environmental sensor.

4. How serious is OBDII code B3924 in a 2015 Chevrolet Silverado?

- This code relates to the vehicle's airbag system, so it should be taken seriously to ensure the proper functioning of the safety features.

5. Can OBDII code B3924 in a 2015 Chevrolet Silverado be fixed at home?

- While some DIY enthusiasts may attempt to diagnose the issue, it is recommended to have a professional mechanic address airbag system problems for safety reasons.

6. How can I diagnose OBDII code B3924 in a 2015 Chevrolet Silverado?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, followed by inspecting the airbag system components for any visible issues.

7. Is it safe to drive with OBDII code B3924 present in a 2015 Chevrolet Silverado?

- It is not recommended to drive the vehicle with this code as it may indicate potential problems with the airbag system, compromising safety in the event of an accident.

8. How much does it cost to repair OBDII code B3924 in a 2015 Chevrolet Silverado?

- Repair costs can vary depending on the exact cause of the issue, but it is advisable to budget for diagnostic fees, parts replacement, and labor costs.

9. Can resetting the OBDII system clear code B3924 in a 2015 Chevrolet Silverado?

- Resetting the system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear.

10. How long does it take to repair OBDII code B3924 in a 2015 Chevrolet Silverado?

- The repair time can vary based on the cause of the issue and the availability of parts, but it is advisable to consult with a mechanic for a more accurate estimate.