AutoCodes – GMC – B3982 2018 GMC Sierra

B3982 2018 GMC Sierra Code - Incorrect Environmental Identifier Received from Telematics Communication Interface 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 Telematics Communication Interface Control Module, Telematics Communication Interface Control Module harness is open or shorted, Telematics Communication Interface 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
B3982 2018 GMC Sierra indicates Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module.
Common causes
Common causes include Faulty Telematics Communication Interface Control Module, Telematics Communication Interface Control Module harness is open or shorted, Telematics Communication Interface 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 180
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 19, 2023
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Code B3982 2018 GMC Sierra 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 (EBCM), 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.
OBDII Code B3982 2018 GMC Sierra - Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module - AutoCodes.com
B3982 2018 GMC Sierra Code - Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module

What are the Possible Causes of the DTC B3982 2018 GMC Sierra?

  • Faulty Telematics Communication Interface Control Module
  • Telematics Communication Interface Control Module harness is open or shorted
  • Telematics Communication Interface Control Module circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B3982 2018 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 B3982 2018 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.

Need more information about the B3982 2018 GMC Sierra code?

Need more information on how to fix the B3982 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the 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 B3982 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code B3982 in a 2018 GMC Sierra?

The typical symptoms include issues with the vehicle's telematics system, such as loss of communication or incorrect environmental identifier received warnings.

2. What could cause the OBDII code B3982 to trigger in a 2018 GMC Sierra?

This code is usually triggered by faults within the Telematics Communication Interface Control Module, such as electrical issues, module failures, or wiring problems.

3. How can I diagnose the OBDII code B3982 in my 2018 GMC Sierra?

Diagnosing this code typically involves using a diagnostic scanner to retrieve the specific fault codes, checking the wiring connections to the telematics module, and testing the module itself for proper functionality.

4. Is it safe to continue driving my 2018 GMC Sierra with the OBDII code B3982 present?

It is generally not recommended to drive the vehicle with this code present, as it may indicate potential issues with the telematics system, which could affect vehicle performance and safety.

5. Can I reset the OBDII code B3982 in my 2018 GMC Sierra by disconnecting the battery?

While disconnecting the battery may clear the code temporarily, it is essential to diagnose and address the underlying issue causing the code to prevent it from reoccurring.

6. Are there any common DIY repairs for fixing the OBDII code B3982 in a 2018 GMC Sierra?

DIY repairs for this code may include checking and repairing any damaged wiring connections to the telematics module or replacing the module if it is determined to be faulty.

7. How much does it cost to repair the OBDII code B3982 in a 2018 GMC Sierra at a dealership or repair shop?

The cost of repair can vary depending on the exact cause of the code, but it may involve diagnostic fees, parts replacement costs, and labor charges, which could range from a few hundred to over a thousand dollars.

8. Can a faulty aftermarket telematics device cause the OBDII code B3982 to trigger in a 2018 GMC Sierra?

Yes, using incompatible or faulty aftermarket telematics devices can potentially cause communication errors and trigger this code in the vehicle's system.

9. Will fixing the OBDII code B3982 in my 2018 GMC Sierra improve fuel efficiency or performance?

While addressing this code may not directly improve fuel efficiency or performance, resolving the underlying issue with the telematics system can help ensure the vehicle functions properly and efficiently.

10. How often should I have my 2018 GMC Sierra's telematics system checked to prevent the OBDII code B3982 from appearing?

Regular maintenance checks and inspections, especially when experiencing telematics system-related issues, can help prevent the OBDII code B3982 from appearing and ensure the system operates smoothly.

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