AutoCodes – GMC – B0012 2015 GMC Sierra

B0012 2015 GMC Sierra Code - Driver Steering Wheel Air Bag Deployment Loop Stage 1

Quick Answer

During a frontal crash of sufficient force, the inflatable restraint Sensing and Diagnostic Module (SDM) will allow current to flow through the deployment loop in order to deploy the steering wheel air bag. Common causes include Faulty Steering Wheel Air Bag, Faulty Steering Wheel Air Bag Coil, Steering Wheel Air Bag harness is open or shorted. 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: B0012 2015 GMC Sierra indicates Driver Steering Wheel Air Bag Deployment Loop Stage 1.
Common causes: Common causes include Faulty Steering Wheel Air Bag, Faulty Steering Wheel Air Bag Coil, Steering Wheel Air Bag harness is open or shorted.
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 497

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 Oct 05, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0012 2015 GMC Sierra Description

During a frontal crash of sufficient force, the inflatable restraint Sensing and Diagnostic Module (SDM) will allow current to flow through the deployment loop in order to deploy the steering wheel air bag. The SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage. There are two shorting bars used within the steering wheel air bag coil connector which will short together both steering wheel air bag stage 1 high control circuit and steering wheel air bag stage 1 low control circuit and both steering wheel air bag stage 2 high control circuit and steering wheel air bag stage 2 low control circuit when the connector is disconnected. This will help to prevent unwanted deployment of the steering wheel air bag during servicing.

OBDII Code B0012 2015 GMC Sierra - Driver Steering Wheel Air Bag Deployment Loop Stage 1 - AutoCodes.com — B0012 2015 GMC Sierra Code - Driver Steering Wheel Air Bag Deployment Loop Stage 1

What does this mean?

What are the Possible Causes of the DTC B0012 2015 GMC Sierra?

Faulty Steering Wheel Air Bag
Faulty Steering Wheel Air Bag Coil
Steering Wheel Air Bag harness is open or shorted
Steering Wheel Air Bag circuit poor electrical connection
Faulty Sensing and Diagnostic Module (SDM)

How to Fix the DTC B0012 2015 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 does this mean?

Code Tech Notes

B0012:01 Driver Frontal Deployment Loop Stage 1 Short to Battery
B0012:02 Driver Frontal Deployment Loop Stage 1 Short to Ground
B0012:04 Driver Frontal Deployment Loop Stage 1 Open Circuit
B0012:0D Driver Frontal Deployment Loop Stage 1 High Resistance
B0012:0E Driver Frontal Deployment Loop Stage 1 Low Resistance

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0012 2015 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 B0012 2015 GMC Sierra code?

Need more information on how to fix the B0012 2015 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0012 2015 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 B0012 2015 GMC Sierra Code

1. What are the common symptoms of OBDII code B0012 in a 2015 GMC Sierra?

The common symptoms include the airbag warning light illuminating on the dashboard and a potential loss of functionality of the driver's steering wheel airbag.

2. What does the OBDII code B0012 indicate in a 2015 GMC Sierra?

OBDII code B0012 in a 2015 GMC Sierra specifically relates to the Driver Steering Wheel Air Bag Deployment Loop Stageâ€‰1.

3. What are the possible causes of OBDII code B0012 in a 2015 GMC Sierra?

Potential causes of this code could be a faulty steering wheel airbag deployment loop, damaged wiring harness related to the airbag system, or a problem with the airbag control module.

4. How can I diagnose the issue related to OBDII code B0012 in my 2015 GMC Sierra?

Diagnosing this issue typically involves using an OBDII scanner to retrieve the specific code, visually inspecting the airbag system components, and testing the wiring and connections for any faults.

5. Is it safe to drive my 2015 GMC Sierra with OBDII code B0012 present?

It is not recommended to drive the vehicle with an illuminated airbag warning light, as it indicates a potential issue with the airbag system's functionality. Safety could be compromised in the event of a collision.

6. Can I reset the OBDII code B0012 in my 2015 GMC Sierra myself?

While you can clear the code with an OBDII scanner, it is crucial to address the underlying cause of the issue to ensure the airbag system is functioning correctly.

7. How much does it typically cost to repair OBDII code B0012 in a 2015 GMC Sierra?

The cost of repairing this code can vary depending on the root cause of the problem. It could range from a simple fix like repairing a damaged wire to more complex repairs involving the airbag system components.

8. Are there any safety precautions to consider when working on the airbag system related to OBDII code B0012 in a 2015 GMC Sierra?

When working on the airbag system, it is essential to disconnect the vehicle's battery and wait for a specified period to discharge any stored energy. It is also advisable to follow proper safety procedures outlined in the vehicle's service manual.

9. Can a DIY enthusiast with moderate skills repair OBDII code B0012 in a 2015 GMC Sierra?

While some aspects of diagnosing and repairing this code may be within reach for a DIY enthusiast, dealing with the airbag system can be complex and potentially dangerous. It is recommended to consult a professional technician for such issues.

10. How long does it typically take to repair OBDII code B0012 in a 2015 GMC Sierra?

The repair time for this code can vary based on the specific cause of the issue and the expertise of the technician. It could range from a quick fix to a more involved repair that might take several hours.