B3928 2014 GMC Sierra Code - Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module
Quick Answer
The B3928 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates that an incorrect environmental identifier has been received from the Telematics Communication Interface Control Module. Common causes include Faulty environmental sensors, Wiring issues or loose connections, Software glitches in the Telematics Communication Interface Control 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 2014 GMC Sierra indicates Incorrect Environmental Identifier Received from Telematics Communication Interface Control Module.
- Common causes
- Common causes include Faulty environmental sensors, Wiring issues or loose connections, Software glitches in the Telematics Communication Interface Control 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.
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Code B3928 2014 GMC Sierra Description
The B3928 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates that an incorrect environmental identifier has been received from the Telematics Communication Interface Control Module. This module is responsible for managing communication between various vehicle systems and external devices, such as GPS navigation systems, emergency services, and remote diagnostics. When an incorrect environmental identifier is received, it means that the module is having trouble identifying the vehicle's location, environmental conditions, or other relevant data.
Common Causes of B3928 2014 GMC Sierra
- Faulty environmental sensors
- Wiring issues or loose connections
- Software glitches in the Telematics Communication Interface Control Module
- Water damage or corrosion affecting the module
- Physical damage to the module or its components
Symptoms of B3928 2014 GMC Sierra
- Inaccurate GPS navigation directions
- Climate control system not adjusting properly based on external temperature
- Malfunctioning adaptive cruise control or automatic braking system
- Erratic behavior of automatic headlights
- Inability to connect to emergency services or remote diagnostics
How to Fix B3928 2014 GMC Sierra
- Begin by performing a thorough diagnosis of the Telematics Communication Interface Control Module and related systems.
- Inspect and test environmental sensors to ensure they are functioning correctly.
- Check all wiring and connections for any damage or corrosion, repairing or replacing as needed.
- Update or reprogram the software in the module to address any glitches.
- If necessary, replace the Telematics Communication Interface Control Module with a new unit.
Cost to Fix B3928 2014 GMC Sierra
The typical repair costs for addressing a B3928 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. Generally, you can expect to pay anywhere from $200 to $600 for parts and labor. Keep in mind that rates at auto repair shops can vary based on location, vehicle make and model, and other factors, so it's recommended to get a few quotes to ensure you're getting a fair price for the repair.
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Frequently Asked Questions about B3928 2014 GMC Sierra Code
1. What does the OBDII code B3928 mean on a 2014 GMC Sierra?
The B3928 code indicates that the Telematics Communication Interface Control Module has received an incorrect environmental identifier, which can affect the vehicle's communication systems.
2. What are the symptoms of the B3928 code on a 2014 GMC Sierra?
Common symptoms include issues with OnStar functionality, telematics system errors, or a check engine light being illuminated.
3. What causes the code B3928 to appear?
Possible causes include a software issue in the Telematics Control Module, incorrect programming, or communication errors between vehicle modules.
4. Can a weak battery cause the B3928 code?
Yes, a weak or failing battery can cause communication errors, potentially triggering the B3928 code.
5. How do you diagnose the B3928 code on a 2014 GMC Sierra?
Diagnosis involves using a scan tool to check for related codes, inspecting the Telematics Control Module for faults, and verifying the communication network's integrity.
6. Is the B3928 code serious?
While it may not directly affect drivability, it can impair telematics functions like OnStar, which could be critical in emergencies.
7. How can the B3928 code be fixed?
Fixes may include reprogramming the Telematics Control Module, updating software, or replacing faulty wiring or the module itself.
8. Can I reset the B3928 code myself?
You can try clearing the code with an OBDII scanner, but if the underlying issue isn’t resolved, the code is likely to return.
9. How much does it cost to repair the B3928 code?
Repair costs vary depending on the issue, but reprogramming or software updates generally cost less than replacing the Telematics Control Module, which could be several hundred dollars.
10. Can the B3928 code affect other vehicle systems?
Yes, since the telematics module communicates with other vehicle systems, the code could potentially impact diagnostics or other communication-dependent functions.
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