AutoCodes – GMC – B12A4 2016 GMC Sierra

B12A4 2016 GMC Sierra Code - Infotainment Faceplate Control Module

Quick Answer

The radio communicates with the radio controls via serial data. Common causes include Faulty Info Display Module, Info Display Module harness is open or shorted, Info Display Module circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B12A4 2016 GMC Sierra indicates Infotainment Faceplate Control Module.
Common causes: Common causes include Faulty Info Display Module, Info Display Module harness is open or shorted, Info Display Module circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 213

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 29, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B12A4 2016 GMC Sierra Description

The radio communicates with the radio controls via serial data. This Diagnostic Trouble Code (DTC) indicates a fault in the radio controls. No external circuits are involved. The radio may continue to respond normally to faceplate functions when this DTC is set.

OBDII Code B12A4 2016 GMC Sierra - Infotainment Faceplate Control Module - AutoCodes.com — B12A4 2016 GMC Sierra Code - Infotainment Faceplate Control Module

What does this mean?

What are the Possible Causes of the DTC B12A4 2016 GMC Sierra?

Faulty Info Display Module
Info Display Module harness is open or shorted
Info Display Module circuit poor electrical connection

How to Fix the DTC B12A4 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 B12A4 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.

Need more information about the B12A4 2016 GMC Sierra code?

Need more information on how to fix the B12A4 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B12A4 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 B12A4 2016 GMC Sierra Code

1. What does OBDII code B12A4 on a 2016 GMC Sierra mean?

The B12A4 code indicates a malfunction in the Infotainment Faceplate Control Module in the vehicle.

2. What are common symptoms of a B12A4 OBDII code in a 2016 GMC Sierra?

Common symptoms include issues with the infotainment system such as unresponsive touchscreen, display malfunctions, or complete failure of the infotainment system.

3. What are possible causes of the B12A4 OBDII code in a 2016 GMC Sierra?

Potential causes include a faulty infotainment faceplate control module, wiring issues, software glitches, or a malfunctioning display screen.

4. How can I diagnose the B12A4 OBDII code in my 2016 GMC Sierra?

Diagnosing the issue typically involves using a diagnostic scanner to retrieve the specific code, checking for loose connections, inspecting the wiring harness, and testing the infotainment components.

5. Can I still drive my 2016 GMC Sierra with the B12A4 OBDII code present?

While the vehicle may still be operational, it is recommended to address the issue promptly to prevent further damage to the infotainment system or other related components.

6. How can I reset the B12A4 OBDII code in my 2016 GMC Sierra?

Resetting the code may involve using a diagnostic scanner to clear the code after addressing the underlying issue with the Infotainment Faceplate Control Module.

7. Is it possible to repair the Infotainment Faceplate Control Module myself?

While some basic troubleshooting steps can be taken, repairing or replacing the control module may require specialized tools and expertise, so it is recommended to consult a professional mechanic.

8. How much does it cost to repair the B12A4 OBDII code in a 2016 GMC Sierra?

The cost of repair can vary depending on the exact cause of the issue, the extent of the damage, and whether the control module needs to be replaced. It is advisable to obtain quotes from different repair shops.

9. Are there any preventive maintenance tips to avoid the B12A4 OBDII code in a 2016 GMC Sierra?

Regularly checking and maintaining the infotainment system, keeping connectors clean and secure, and updating software can help prevent issues leading to the B12A4 code.

10. Can a B12A4 OBDII code in a 2016 GMC Sierra be related to other vehicle problems?

While the B12A4 code specifically relates to the Infotainment Faceplate Control Module, it is possible for underlying electrical or software issues to impact other vehicle systems, so a comprehensive diagnostic check is recommended.