B0079 GMC Code - Driver Seat Position Sensor Circuit
Quick Answer
The B0079 GMC diagnostic trouble code indicates a problem with the driver seat position sensor circuit. Common causes include Faulty driver seat position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or debris affecting the sensor's operation. 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 GMC indicates Driver Seat Position Sensor Circuit.
- Common causes
- Common causes include Faulty driver seat position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or debris affecting the sensor's operation.
- 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 B0079 GMC Description
The B0079 GMC diagnostic trouble code indicates a problem with the driver seat position sensor circuit. The seat position sensor is a crucial component that helps the vehicle's systems determine the exact position of the driver's seat. This information is essential for the proper functioning of various safety features such as airbags, seat belt tensioners, and electronic stability control systems.
Common Causes of B0079 GMC
- Faulty driver seat position sensor
- Damaged wiring or connectors in the sensor circuit
- Corrosion or debris affecting the sensor's operation
- Electronic control module (ECM) failure
- Impact or physical damage to the driver's seat affecting sensor readings
Symptoms of B0079 GMC
- Airbag warning light illuminated on the dashboard
- Inaccurate seat position displayed on the driver information display
- Seat belt warning chime sounding even when the seat belt is fastened
- Erratic behavior of electronic seat adjustments
- Issues with the functioning of other safety features linked to seat position
How to Fix B0079 GMC
- Begin by conducting a thorough inspection of the driver seat position sensor and its circuitry.
- Test the sensor's functionality using specialized diagnostic tools to identify any faults.
- Repair or replace damaged wiring or connectors in the sensor circuit.
- Replace the driver seat position sensor if it is found to be faulty.
- Clear the diagnostic trouble codes from the vehicle's system and perform a test drive to ensure the issue has been resolved.
Cost to Fix B0079 GMC
The cost of repairing a B0079 GMC code related to the driver seat position sensor circuit can vary depending on the specific cause of the issue and the labor rates of the auto repair shop. On average, the repair cost can range from $150 to $500, including parts and labor. However, it's essential to consult with a professional mechanic to get an accurate estimate based on the vehicle's make and model, as well as the severity of the problem.
Tech Notes for B0079 GMC
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
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Information for Specific GMC Models
- B0079 2014 GMC Sierra — Driver Seat Position Sensor Circuit
- B0079 2015 GMC Sierra — Driver Seat Position Sensor Circuit
- B0079 2016 GMC Sierra — Driver Seat Position Sensor Circuit
- B0079 2017 GMC Sierra — Driver Seat Position Sensor Circuit
- B0079 2018 GMC Sierra — Driver Seat Position Sensor Circuit
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.
Frequently Asked Questions about B0079 GMC Code
1. What are common symptoms of OBDII code B0079 GMC related to the driver seat position sensor circuit?
The common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the airbag system.
2. What are the possible causes of OBDII code B0079 GMC?
Possible causes include a faulty driver seat position sensor, damaged wiring or connectors in the circuit, or a problem with the airbag control module.
3. How can I diagnose the issue related to OBDII code B0079 GMC?
Diagnosis usually involves using a scan tool to retrieve the specific fault code, inspecting the wiring and connectors for damage, and testing the driver seat position sensor for proper operation.
4. Can I repair the driver seat position sensor circuit issue myself?
Depending on your experience and knowledge, you may be able to repair the issue yourself by replacing the faulty sensor, repairing damaged wiring, or fixing connector issues. However, it's recommended to seek professional help if you're unsure.
5. Is it safe to drive with OBDII code B0079 GMC active?
It's not recommended to drive with this code active, as it may indicate a problem with the airbag system, which is crucial for your safety in the event of a collision.
6. How much does it typically cost to repair OBDII code B0079 GMC?
The cost of repair can vary depending on the cause of the issue. Replacing a faulty sensor or repairing wiring may cost a few hundred dollars, while addressing a more complex problem could be more expensive.
7. Can resetting the OBDII code B0079 GMC turn off the airbag warning light?
While resetting the code may temporarily turn off the warning light, it's important to diagnose and repair the underlying issue to ensure the proper functioning of the airbag system.
8. Will OBDII code B0079 GMC affect the overall performance of my vehicle?
This code is related to the airbag system and may not directly impact the performance of your vehicle. However, it's crucial for your safety in case of an accident.
9. How long does it take to repair OBDII code B0079 GMC?
The repair time can vary depending on the cause of the issue and the complexity of the repair. It may take anywhere from a few hours to a full day to complete the repair.
10. Can OBDII code B0079 GMC be intermittent?
Yes, the issue related to this code can sometimes be intermittent, with the warning light coming on and off sporadically. It's still important to diagnose and address the problem to ensure the proper functioning of the airbag system.
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