Engine-CodesGMC – B3928 GMC

B3928 GMC Code - Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module

Quick Answer

The B3928 GMC code indicates that the Telematics Communication Interface Control Module has received an incorrect environmental identifier. Common causes include Faulty telematics communication interface control module, Wiring or connection issue, Corrupted environmental identifier data. 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
B3928 GMC indicates Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module.
Common causes
Common causes include Faulty telematics communication interface control module, Wiring or connection issue, Corrupted environmental identifier data.
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.
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code B3928 GMC Description

The B3928 GMC code indicates that the Telematics Communication Interface Control Module has received an incorrect environmental identifier. This module is responsible for managing the vehicle's telematics system, which includes features such as GPS navigation, emergency services, and remote diagnostics. When this code is triggered, it means that the module has detected an issue with the environmental identifier data it is receiving, which could potentially impact the functionality of the telematics system.

OBDII Code B3928 GMC - Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module
B3928 GMC Code - Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module

Common Causes of B3928 GMC

  1. Faulty telematics communication interface control module
  2. Wiring or connection issue
  3. Corrupted environmental identifier data
  4. Software glitch in the telematics system
  5. Environmental factors affecting signal transmission

Symptoms of B3928 GMC

  1. Inaccurate GPS navigation directions
  2. Inability to connect to emergency services
  3. Malfunctioning remote diagnostics
  4. Loss of telematics system functionality

How to Fix B3928 GMC

  1. Diagnose the specific cause of the incorrect environmental identifier by using a diagnostic scanner to retrieve the trouble codes and perform a thorough inspection of the telematics system.
  2. Check the wiring and connections related to the telematics communication interface control module to ensure they are secure and free of damage.
  3. Update the software of the telematics system to the latest version to address any potential glitches or bugs that may be causing the issue.
  4. If the module is found to be faulty, replace it with a new one and reprogram it to ensure proper functionality.
  5. Test the telematics system after repairs to verify that the issue has been resolved and that all features are working correctly.

Cost to Fix B3928 GMC

The typical repair costs for addressing the B3928 GMC code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, replacing a faulty telematics communication interface control module can cost between $200 and $500, including parts and labor. However, additional costs may be incurred if wiring repairs or software updates are required. It is advisable to consult with a qualified mechanic or dealership to get an accurate estimate based on the specific circumstances of the vehicle. Keep in mind that labor rates at auto repair shops can vary, so it's recommended to inquire about rates in your local area for a more precise cost estimate.

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Information for Specific GMC Models

  • B3928 2014 GMC Sierra — Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module
  • B3928 2015 GMC Sierra — Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module
  • B3928 2016 GMC Sierra — Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module
  • B3928 2017 GMC Sierra — Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module
  • B3928 2018 GMC Sierra — Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module
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 B3928 GMC Code

1. What are common symptoms of OBDII code B3928 GMC?

The common symptoms include the check engine light being illuminated, issues with the telematics system, and potential communication problems with the vehicle's control modules.

2. What causes OBDII code B3928 GMC to trigger?

This code is typically triggered when the Telematics Communication Interface Control Module sends an incorrect environmental identifier, often due to a malfunction in the module itself or a communication error within the vehicle's network.

3. How serious is OBDII code B3928 GMC?

While this code may not directly affect the drivability of the vehicle, it is important to address it in a timely manner to ensure proper functioning of the telematics system and to prevent potential communication issues with other control modules.

4. How can I diagnose OBDII code B3928 GMC?

Diagnosing this code usually involves using a diagnostic scanner to retrieve the specific fault code, checking the connections to the Telematics Communication Interface Control Module, and inspecting for any visible signs of damage or corrosion.

5. Can I repair OBDII code B3928 GMC myself?

Repairing this code may require advanced diagnostic tools and knowledge of vehicle electronics. It is recommended to consult with a qualified mechanic or dealership to accurately diagnose and repair the issue.

6. Will driving with OBDII code B3928 GMC cause further damage?

Continuing to drive with this code present may not cause immediate damage to the vehicle, but unresolved communication issues could potentially lead to other system malfunctions over time.

7. How much does it cost to fix OBDII code B3928 GMC?

The cost of repairing this code can vary depending on the underlying cause of the issue, the labor rates of the repair facility, and whether any parts need to be replaced. It is advisable to obtain a quote from a trusted mechanic.

8. Can resetting the OBDII system clear code B3928 GMC?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return once the vehicle is driven and the system detects the fault again.

9. Is OBDII code B3928 GMC a common issue in GMC vehicles?

This specific code may not be as common as some other OBDII codes, but it can still occur in GMC vehicles equipped with telematics systems and communication interface control modules.

10. How long does it take to fix OBDII code B3928 GMC?

The repair time for this code can vary depending on the cause of the issue and the complexity of the repair. In some cases, it may be a quick fix, while in others, it could take several hours to diagnose and repair.

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