AutoCodes – GMC – B12A6 2016 GMC Sierra

B12A6 2016 GMC Sierra Code - Info Display Module Internal Malfunction

Quick Answer

The radio communicates with the Info Display Module 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: B12A6 2016 GMC Sierra indicates Info Display Module Internal Malfunction.
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 303

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 B12A6 2016 GMC Sierra Description

The radio communicates with the Info Display Module via serial data. This Diagnostic Trouble Code (DTC) indicates a fault in the Info Display Module. No external circuits are involved.

OBDII Code B12A6 2016 GMC Sierra - Info Display Module Internal Malfunction - AutoCodes.com — B12A6 2016 GMC Sierra Code - Info Display Module Internal Malfunction

What does this mean?

What are the Possible Causes of the DTC B12A6 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 B12A6 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 B12A6 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 B12A6 2016 GMC Sierra code?

Need more information on how to fix the B12A6 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B12A6 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 B12A6 2016 GMC Sierra Code

1. What does OBDII code B12A6 mean on a 2016 GMC Sierra?

B12A6 indicates an internal malfunction in the Info Display Module, often related to a communication or hardware failure in the vehicle's infotainment system.

2. What are the common symptoms of code B12A6?

Symptoms include the infotainment screen not powering on, freezing, displaying incorrect information, or intermittent functionality.

3. What causes the B12A6 code to appear?

The code can be triggered by a software glitch, loose or damaged wiring, a failed Info Display Module, or electrical issues such as a blown fuse.

4. Can the B12A6 code be cleared without repairs?

Clearing the code without addressing the underlying issue may temporarily resolve it, but the problem will likely return if the root cause is not fixed.

5. How can I troubleshoot the B12A6 code?

Start by checking the fuses, inspecting wiring connections to the Info Display Module, and ensuring the system has the latest software updates. If no issues are found, the module may need replacement.

6. Is the B12A6 code related to the vehicle's performance?

No, this code primarily affects the infotainment system and does not impact the vehicle's engine or drivability.

7. Can a software update fix the B12A6 code on a 2016 GMC Sierra?

Yes, a software update can sometimes resolve the issue if the malfunction is caused by a software bug.

8. How much does it cost to repair the B12A6 code?

Repair costs vary, but replacing the Info Display Module can range from $300 to $1,000, depending on parts and labor.

9. Is it safe to drive with the B12A6 code active?

Yes, the vehicle is safe to drive, but you may experience inconveniences with the infotainment system until the issue is resolved.

10. Can I replace the Info Display Module myself to fix the B12A6 code?

If you're comfortable with removing dashboard components and handling electrical connections, you can attempt it, but professional installation is recommended to avoid further damage.