B3927 2016 GMC Sierra 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 2016 GMC Sierra 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.
Code B3927 2016 GMC Sierra 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 B3927 2016 GMC Sierra?
- 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 2016 GMC Sierra?
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 2016 GMC Sierra 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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Frequently Asked Questions about B3927 2016 GMC Sierra Code
1. What does OBDII code B3927 mean on a 2016 GMC Sierra?
Code B3927 indicates that the vehicle's electronic brake control module (EBCM) has received an incorrect environmental identifier, which may affect communication or functionality.
2. What are the common symptoms of code B3927 in a 2016 GMC Sierra?
Symptoms can include illuminated warning lights, such as the ABS or traction control light, and potential issues with brake system performance.
3. What causes code B3927 to appear in a 2016 GMC Sierra?
Common causes include a faulty electronic brake control module (EBCM), software issues, or a communication error between the EBCM and other control modules.
4. Can code B3927 affect the braking system of the 2016 GMC Sierra?
Yes, while it may not always directly impact braking, it can cause issues with ABS or traction control functionality.
5. How is code B3927 diagnosed on a 2016 GMC Sierra?
A technician uses a diagnostic scanner to check for related codes, evaluates module communication, and inspects wiring and connectors for damage or loose connections.
6. Can I drive with code B3927 active in my 2016 GMC Sierra?
While the vehicle may still be drivable, it’s not recommended to delay repairs as ABS or traction control features may be compromised.
7. How can code B3927 be fixed on a 2016 GMC Sierra?
Repairs may involve reprogramming or replacing the EBCM, updating software, or repairing any damaged wiring or connectors.
8. Is code B3927 a common issue in 2016 GMC Sierras?
This code is not extremely common but can occur, particularly if there are communication or software-related problems in the vehicle’s brake system.
9. How much does it typically cost to repair code B3927 on a 2016 GMC Sierra?
The cost can vary depending on whether reprogramming, wiring repair, or module replacement is needed, ranging from $150 to $1,000 or more.
10. Can a software update resolve the B3927 code in a 2016 GMC Sierra?
Yes, in some cases, a software update or reprogramming of the EBCM can resolve the issue if it is caused by outdated programming.
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