AutoCodes – GMC – B0079 2014 GMC Sierra

B0079 2014 GMC Sierra Code - Driver Seat Position Sensor Circuit

Quick Answer

The seat position sensor is used to determine the proximity of the front driver or passenger seat position with respect to the front air bag. Common causes include Faulty Driver Seat Position Sensor, Driver Seat Position Sensor harness is open or shorted, Driver Seat Position Sensor 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: B0079 2014 GMC Sierra indicates Driver Seat Position Sensor Circuit.
Common causes: Common causes include Faulty Driver Seat Position Sensor, Driver Seat Position Sensor harness is open or shorted, Driver Seat Position Sensor 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 324

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 17, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0079 2014 GMC Sierra Description

The seat position sensor is used to determine the proximity of the front driver or passenger seat position with respect to the front air bag. There are two states of seat position, forward and rearward. The seat position sensor interfaces with the Inflatable Restraint Sensing and Diagnostic Module (SDM) and allows the inflatable restraint sensing and diagnostic module to disable stage 2 of the air bag for a front seat that is forward of the forward/rearward point in seat track. The seat position sensor provides two current ranges, one range for the forward seat position and one for the rearward seat position. When the Inflatable Restraint Sensing and Diagnostic Module receives input from a seat position sensor that the seat is rearward, and the inflatable restraint sensing and diagnostic module will not disable stage 2 deployment. When the seat is forward, the Inflatable Restraint Sensing and Diagnostic Module will disable stage 2 deployment. The inflatable restraint sensing and diagnostic module monitors the seat position sensor circuit and if a fault is detected, the Inflatable Restraint Sensing and Diagnostic Module will set Diagnostic Trouble Code (DTC) B0079 and disable stage 2 frontal deployment.

OBDII Code B0079 2014 GMC Sierra - Driver Seat Position Sensor Circuit - AutoCodes.com — B0079 2014 GMC Sierra Code - Driver Seat Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B0079 2014 GMC Sierra?

Faulty Driver Seat Position Sensor
Driver Seat Position Sensor harness is open or shorted
Driver Seat Position Sensor circuit poor electrical connection
Faulty Inflatable Restraint Sensing and Diagnostic Module (SDM)

How to Fix the DTC B0079 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 does this mean?

Code Tech Notes

B0079:01 Driver Seat Position Sensor Circuit Short to Battery
B0079:02 Driver Seat Position Sensor Circuit Short to Ground
B0079:04 Driver Seat Position Sensor Circuit Open
B0079:05 Driver Seat Position Sensor Circuit High Voltage or Open
B0079:06 Driver Seat Position Sensor Circuit Low Voltage or Open
B0079:08 Driver Seat Position Sensor Circuit Performance-Signal Invalid
B0079:0C Driver Seat Position Sensor Circuit Low Current

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0079 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 B0079 2014 GMC Sierra code?

Need more information on how to fix the B0079 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0079 2014 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 B0079 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code B0079 in a 2014 GMC Sierra related to the driver seat position sensor circuit?

The common symptoms include an illuminated airbag or SRS (Supplemental Restraint System) warning light on the dashboard and the potential disabling of the airbag system.

2. What are the possible causes of OBDII code B0079 in a 2014 GMC Sierra?

Possible causes include a faulty driver seat position sensor, damaged wiring or connectors in the seat position sensor circuit, or a malfunction in the airbag control module.

3. How can I diagnose the issue causing OBDII code B0079 in my 2014 GMC Sierra?

Diagnosing the issue involves using an OBDII scanner to retrieve the specific trouble code, inspecting the wiring and connectors in the driver seat position sensor circuit, and testing the sensor's functionality.

4. Is it safe to continue driving my 2014 GMC Sierra with OBDII code B0079 present?

It is not recommended to drive the vehicle with the airbag warning light illuminated, as the airbag system may be compromised and fail to deploy in the event of an accident.

5. What are some repair tips for addressing OBDII code B0079 in a 2014 GMC Sierra?

Repair tips may include checking and repairing any damaged wiring or connectors, replacing the driver seat position sensor if faulty, or reprogramming the airbag control module if necessary.

6. Can I reset OBDII code B0079 in my 2014 GMC Sierra by disconnecting the battery?

While disconnecting the battery may temporarily clear the code, it is important to address the underlying issue causing the fault code to prevent it from reoccurring.

7. How much does it typically cost to repair OBDII code B0079 in a 2014 GMC Sierra?

The cost of repair can vary depending on the specific cause of the issue, but it may involve replacing the driver seat position sensor, repairing wiring, or reprogramming the airbag control module.

8. Are there any recalls or technical service bulletins related to OBDII code B0079 in a 2014 GMC Sierra?

It is recommended to check with a GMC dealership or online resources for any recalls or technical service bulletins related to this specific OBDII code to see if there are any known issues or remedies provided by the manufacturer.

9. Can a DIY enthusiast without advanced automotive knowledge fix OBDII code B0079 in a 2014 GMC Sierra?

Depending on the specific cause of the issue, a DIY enthusiast with some automotive knowledge may be able to address simpler issues like checking and repairing wiring or connectors. However, more complex repairs or sensor replacements may require professional assistance.

10. How important is it to address OBDII code B0079 in a 2014 GMC Sierra promptly?

It is crucial to address OBDII code B0079 promptly to ensure the proper functioning of the airbag system, which is a critical safety feature designed to protect occupants in the event of a collision.