Engine-CodesGMC – B3928 2015 GMC Sierra

B3928 2015 GMC Sierra Code - Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module

Quick Answer

The B3928 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates that an incorrect environmental identifier was received from the Telematics Communication Interface Control Module. Common causes include Loose or damaged wiring connections, Faulty Telematics Communication Interface Control Module, Software glitches in the module. 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 2015 GMC Sierra indicates Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module.
Common causes
Common causes include Loose or damaged wiring connections, Faulty Telematics Communication Interface Control Module, Software glitches in the module.
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 15, 2024
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Code B3928 2015 GMC Sierra Description

The B3928 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates that an incorrect environmental identifier was received from the Telematics Communication Interface Control Module. This module is responsible for managing communication between various systems within the vehicle, including telematics features such as GPS navigation, emergency services, and remote diagnostics. When the module receives an incorrect environmental identifier, it means that the data being transmitted is not matching up with the expected parameters.

OBDII Code B3928 2015 GMC Sierra - Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module
B3928 2015 GMC Sierra Code - Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module

Common Causes of B3928 2015 GMC Sierra

  1. Loose or damaged wiring connections
  2. Faulty Telematics Communication Interface Control Module
  3. Software glitches in the module
  4. Malfunctioning environmental sensors
  5. Water damage or exposure to extreme environmental conditions

Symptoms of B3928 2015 GMC Sierra

  1. Inaccurate GPS navigation directions
  2. Failure to connect to emergency services
  3. Issues with remote diagnostics
  4. Warning lights related to telematics system on the dashboard
  5. Overall decrease in telematics system functionality

How to Fix B3928 2015 GMC Sierra

  1. Begin by conducting a thorough inspection of the wiring connections related to the Telematics Communication Interface Control Module.
  2. Test the module itself for any malfunctions using diagnostic tools.
  3. Check and update the software in the module if necessary.
  4. Inspect and potentially replace any faulty environmental sensors.
  5. Clear the DTC and reset the system to see if the issue persists.

Cost to Fix B3928 2015 GMC Sierra

The typical repair costs for addressing a B3928 code on a 2015 GMC Sierra can vary depending on the exact cause of the issue. In general, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check with local shops for a more accurate estimate.

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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 B3928 2015 GMC Sierra Code

1. What are the common symptoms of OBDII code B3928 on a 2015 GMC Sierra?

The common symptoms of OBDII code B3928 include issues with the telematics system, such as loss of communication or incorrect environmental identifiers.

2. What does the OBDII code B3928 indicate on a 2015 GMC Sierra?

OBDII code B3928 indicates that the Telematics Communication Interface Control Module has received an incorrect environmental identifier.

3. What are the possible causes of OBDII code B3928 on a 2015 GMC Sierra?

Possible causes of OBDII code B3928 include a faulty Telematics Communication Interface Control Module, wiring issues, or software glitches within the system.

4. How can I diagnose OBDII code B3928 on my 2015 GMC Sierra?

Diagnosing OBDII code B3928 typically involves using a diagnostic scanner to retrieve the code and then inspecting the telematics system components for any visible damage or connectivity issues.

5. Can OBDII code B3928 on a 2015 GMC Sierra be fixed without professional help?

While some basic checks like inspecting wiring connections can be done without professional help, diagnosing and repairing more complex issues related to OBDII code B3928 may require the expertise of a trained mechanic.

6. Is it safe to continue driving with OBDII code B3928 present on a 2015 GMC Sierra?

It is generally not recommended to continue driving with OBDII code B3928 present, as it may affect the proper functioning of the telematics system and potentially lead to other issues.

7. How much does it typically cost to repair OBDII code B3928 on a 2015 GMC Sierra?

The cost of repairing OBDII code B3928 can vary depending on the root cause of the issue, but it may involve replacing the Telematics Communication Interface Control Module or addressing wiring issues, which can range from moderate to high costs.

8. Are there any preventative measures to avoid OBDII code B3928 on a 2015 GMC Sierra?

To prevent OBDII code B3928, regular maintenance checks on the telematics system and addressing any software updates recommended by the manufacturer may help avoid potential issues.

9. Can a DIY enthusiast with some automotive experience repair OBDII code B3928 on a 2015 GMC Sierra?

A DIY enthusiast with some automotive experience may be able to perform basic checks and inspections related to OBDII code B3928, but more complex diagnostic and repair tasks may require professional assistance.

10. How long does it typically take to repair OBDII code B3928 on a 2015 GMC Sierra?

The repair time for OBDII code B3928 can vary based on the underlying cause and the complexity of the repair needed, ranging from a few hours to a full day or more, depending on the extent of the issue.

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