B3924 GMC 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 GMC 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.
Code B3924 GMC Description
The Diagnostic Trouble Code (DTC) sets when the control module's environment identifier does not match the environment identifier stored by the BCM.
What are the Possible Causes of the DTC B3924 GMC?
- 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 GMC?
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 GMC 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.
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Information for Specific GMC Models
- B3924 2014 GMC Sierra — Incorrect Environmental Identifier Received from Inflatable Restraint Sensing and Diagnostic Module
- B3924 2015 GMC Sierra — Incorrect Environmental Identifier Received from Inflatable Restraint Sensing and Diagnostic Module
- B3924 2016 GMC Sierra — Incorrect Environmental Identifier Received from Inflatable Restraint Sensing and Diagnostic Module
- B3924 2017 GMC Sierra — Incorrect Environmental Identifier Received from Inflatable Restraint Sensing and Diagnostic Module
- B3924 2018 GMC Sierra — Incorrect Environmental Identifier Received from Inflatable Restraint Sensing and Diagnostic Module
Frequently Asked Questions about B3924 GMC Code
1. What are the common symptoms of OBDII code B3924 in a GMC vehicle?
- Common symptoms include the airbag warning light staying illuminated on the dashboard and potential issues with the vehicle's restraint system.
2. What does the OBDII code B3924 GMC mean?
- The code B3924 indicates that the Inflatable Restraint Sensing and Diagnostic Module has received an incorrect environmental identifier.
3. What are the possible causes of OBDII code B3924 in a GMC vehicle?
- Possible causes include a faulty Inflatable Restraint Sensing and Diagnostic Module, wiring issues, or a malfunction in the airbag system.
4. How can I diagnose the source of OBDII code B3924 in my GMC vehicle?
- Diagnosing the issue typically involves using a professional OBDII scanner to retrieve the specific error codes and checking the connections and wiring related to the airbag system.
5. Is it safe to drive my GMC vehicle with OBDII code B3924?
- It is not recommended to drive the vehicle with this code present, as it may indicate a problem with the airbag system, which is crucial for occupant safety in the event of a collision.
6. Can I reset OBDII code B3924 in my GMC vehicle myself?
- While you can attempt to clear the code with an OBDII scanner, it is essential to address the underlying issue causing the code to prevent it from reoccurring.
7. What are some repair tips for fixing OBDII code B3924 in a GMC vehicle?
- Repair tips may include checking and repairing any damaged wiring, ensuring proper connections to the airbag system components, or replacing the faulty Inflatable Restraint Sensing and Diagnostic Module.
8. How much does it typically cost to repair OBDII code B3924 in a GMC vehicle?
- The cost of repair can vary depending on the specific issue causing the code, the labor rates of the repair shop, and the cost of any replacement parts needed.
9. Can a DIY enthusiast fix OBDII code B3924 in a GMC vehicle?
- While some basic troubleshooting and repair tasks can be performed by DIY enthusiasts, dealing with airbag systems and related components may require specialized knowledge and tools best handled by a professional mechanic.
10. How often does OBDII code B3924 occur in GMC vehicles?
- The occurrence of this specific OBDII code can vary depending on the model and age of the GMC vehicle, as well as maintenance history and driving conditions.
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