AutoCodes – GMC – B3031 2014 GMC Sierra

B3031 2014 GMC Sierra Code - Security System Controller In Learn Mode

Quick Answer

When learning a coded key, the Body Control Module (BCM) is placed in learn mode. Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module circuit poor electrical connection. 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: B3031 2014 GMC Sierra indicates Security System Controller In Learn Mode.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module circuit poor electrical connection.
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 Popularity 188

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 02, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3031 2014 GMC Sierra Description

When learning a coded key, the Body Control Module (BCM) is placed in learn mode. Diagnostic Trouble Code (DTC) B3031 will be set automatically as an indicator that the system is in learning mode and not as a fault indicator. On some model-year vehicles, the instructions for adding keys includes the direction to always use two learned keys. This DTC will be set if that direction is not followed. If only one learned key is available, then Replacing Keys must be performed. Once the coded key is learned, learn mode will be exited and the DTC cleared. If the BCM does not exit learn mode, DTC B3031 will remain current and indicate a fault. The instrument cluster security indicator will illuminate, and the driver information center will display a message.

OBDII Code B3031 2014 GMC Sierra - Security System Controller In Learn Mode - AutoCodes.com — B3031 2014 GMC Sierra Code - Security System Controller In Learn Mode

What does this mean?

What are the Possible Causes of the DTC B3031 2014 GMC Sierra?

Faulty Body Control Module (BCM)
Body Control Module harness is open or shorted
Body Control Module circuit poor electrical connection

How to Fix the DTC B3031 2014 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 B3031 2014 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 B3031 2014 GMC Sierra code?

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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 B3031 2014 GMC Sierra Code

1. What does the OBDII code B3031 mean on a 2014 GMC Sierra?

Code B3031 indicates that the security system controller is in "Learn Mode," which is typically used to program new keys or reset the vehicle's anti-theft system.

2. What are common symptoms of code B3031 on a 2014 GMC Sierra?

Common symptoms include the engine not starting, the security light remaining illuminated or flashing, and possible issues programming new keys.

3. What causes the B3031 code to appear on a GMC Sierra?

This code is triggered when the security system controller enters Learn Mode, usually during key programming or if the system detects a malfunction requiring reprogramming.

4. Can code B3031 cause a no-start condition?

Yes, the code can cause a no-start condition if the security system does not properly recognize the programmed key or if the system remains in Learn Mode.

5. How do I fix the B3031 code on my 2014 GMC Sierra?

Fixing this code often involves completing the key programming process using a scan tool or following the manufacturerâ€™s procedure for reprogramming the anti-theft system.

6. Do I need special tools to address code B3031?

Yes, resolving this code typically requires a diagnostic scan tool capable of accessing the security system and performing key programming functions.

7. Can a dead battery cause the B3031 code to appear?

A dead or disconnected battery may reset the security system, potentially triggering the need for reprogramming and causing the B3031 code to appear.

8. How long does the security controller stay in Learn Mode?

The security controller remains in Learn Mode until the key programming procedure is successfully completed or the system times out after a certain period.

9. Can I clear the B3031 code without fixing the issue?

Clearing the code without addressing the underlying issue may result in the code reappearing and persistent problems with the security system.

10. Should I take my 2014 GMC Sierra to a dealership for a B3031 code?

If you are not familiar with key programming procedures or lack the necessary tools, it is recommended to take the vehicle to a dealership or qualified locksmith.