AutoCodes – GMC – B0012 2017 GMC Sierra

B0012 2017 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 2017 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 380

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 2017 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 2017 GMC Sierra - Driver Steering Wheel Air Bag Deployment Loop Stage 1 - AutoCodes.com — B0012 2017 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 2017 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 2017 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 2017 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 2017 GMC Sierra code?

Need more information on how to fix the B0012 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0012 2017 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 2017 GMC Sierra Code

1. What does OBDII code B0012 for a 2017 GMC Sierra indicate?

The code B0012 refers to the Driver Steering Wheel Air Bag Deployment Loop Stage 1 circuit being open or high resistance in a 2017 GMC Sierra.

2. What are the common symptoms of OBDII code B0012 in a 2017 GMC Sierra?

Common symptoms of code B0012 may include the airbag warning light staying illuminated on the dashboard and a potential loss of functionality of the driver's airbag.

3. What are the possible causes of OBDII code B0012 in a 2017 GMC Sierra?

Possible causes of code B0012 can include a faulty clock spring, damaged wiring or connectors in the airbag system, or issues with the airbag control module.

4. How can I diagnose OBDII code B0012 in my 2017 GMC Sierra?

Diagnosing code B0012 typically involves using a scan tool to retrieve the specific fault code, inspecting the wiring and connectors in the airbag system, and testing the components for proper functionality.

5. Can I drive my 2017 GMC Sierra with OBDII code B0012?

It is not recommended to drive your vehicle with an active airbag fault code like B0012, as it may compromise the effectiveness of the airbag system in the event of a collision.

6. How can I repair OBDII code B0012 in my 2017 GMC Sierra?

Repairing code B0012 may involve replacing the faulty clock spring, repairing damaged wiring or connectors, or resetting the airbag control module after addressing the root cause of the issue.

7. Is it safe to reset the OBDII code B0012 in a 2017 GMC Sierra without fixing the underlying problem?

Resetting the code without fixing the underlying issue may temporarily turn off the warning light, but the problem will persist and potentially compromise the safety of the airbag system.

8. How much does it typically cost to repair OBDII code B0012 in a 2017 GMC Sierra?

The cost of repairing code B0012 can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can a DIY enthusiast fix OBDII code B0012 in a 2017 GMC Sierra?

While some experienced DIY enthusiasts may be able to diagnose and repair code B0012, working on the airbag system can be complex and dangerous, so it is recommended to consult a professional technician.

10. Will fixing OBDII code B0012 in my 2017 GMC Sierra require a visit to the dealership?

While visiting a dealership is an option, independent automotive repair shops and qualified technicians can also diagnose and repair code B0012 in a 2017 GMC Sierra effectively.