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B0680 2016 GMC Sierra Code - Passenger Air Bag Off Indicator Circuit

Quick Answer

The B0680 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Passenger Air Bag Off Indicator Circuit. Common causes include Faulty passenger seat occupancy sensor, Wiring issues or loose connections in the circuit, Defective airbag control module. 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
B0680 2016 GMC Sierra indicates Passenger Air Bag Off Indicator Circuit.
Common causes
Common causes include Faulty passenger seat occupancy sensor, Wiring issues or loose connections in the circuit, Defective airbag control module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B0680 2016 GMC Sierra Description

The B0680 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Passenger Air Bag Off Indicator Circuit. This code indicates that there is a malfunction in the circuit responsible for the passenger airbag off indicator light. The passenger airbag off indicator light is designed to inform the driver when the passenger airbag has been deactivated, typically when there is no passenger in the seat or if the passenger is below a certain weight threshold.

OBDII Code B0680 2016 GMC Sierra - Passenger Air Bag Off Indicator Circuit
B0680 2016 GMC Sierra Code - Passenger Air Bag Off Indicator Circuit

Common Causes of B0680 2016 GMC Sierra

  1. Faulty passenger seat occupancy sensor.
  2. Wiring issues or loose connections in the circuit.
  3. Defective airbag control module.
  4. Malfunctioning indicator light bulb.
  5. Software issues in the airbag control system.

Symptoms of B0680 2016 GMC Sierra

  1. Passenger airbag off indicator light stays on when there is a passenger in the seat.
  2. Passenger airbag off indicator light does not illuminate when the passenger seat is empty.
  3. Inconsistent behavior of the passenger airbag off indicator light.
  4. Airbag warning light on the dashboard may illuminate.
  5. Potential failure to pass a safety inspection due to the malfunction.

How to Fix B0680 2016 GMC Sierra

  1. Begin by conducting a thorough inspection of the passenger airbag off indicator circuit, including the sensor, wiring, connections, and control module.
  2. Test the passenger seat occupancy sensor to determine if it is functioning correctly.
  3. Check for any loose or damaged wiring in the circuit and repair or replace as necessary.
  4. If the issue lies with the airbag control module, it may need to be reprogrammed or replaced.
  5. Finally, reset the airbag system and clear the DTC to ensure the issue has been resolved.

Cost to Fix B0680 2016 GMC Sierra

The cost of repairing the Passenger Air Bag Off Indicator Circuit can vary depending on the specific cause of the issue. On average, the parts for this repair may range from $100 to $500, while labor costs can add an additional $100 to $300. Overall, the total repair cost could fall between $200 and $800. It's important to note that these are rough estimates, and actual costs may differ based on the location, vehicle make and model, and the rates of the auto repair shop. It's recommended to obtain quotes from local shops for a more accurate estimate.

What does this mean?

Tech Notes for B0680 2016 GMC Sierra

B0680:01 Passenger Air Bag Off Indicator Circuit Short to Battery

B0680:02 Passenger Air Bag Off Indicator Circuit Short to Ground

B0680:04 Passenger Air Bag Off Indicator Circuit Open

B0680:05 Passenger Air Bag Off Indicator Circuit High Voltage/Open

Need more information about the B0680 2016 GMC Sierra code?

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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 B0680 2016 GMC Sierra Code

1. What does OBDII code B0680 mean on a 2016 GMC Sierra?

Code B0680 refers to an issue with the Passenger Air Bag Off Indicator Circuit, indicating a malfunction in the system that controls the airbag status indicator.

2. What are the common symptoms of code B0680 in a 2016 GMC Sierra?

Common symptoms include the Passenger Air Bag Off indicator not illuminating, staying on constantly, or flickering, and possibly an illuminated airbag warning light on the dashboard.

3. What causes code B0680 in a 2016 GMC Sierra?

Causes may include a faulty Passenger Air Bag Off indicator, damaged wiring or connectors in the circuit, or a malfunction in the airbag control module.

4. Is it safe to drive a 2016 GMC Sierra with code B0680?

While the vehicle may still be operable, the airbag system may not function properly in the event of a crash, posing a safety risk. It’s recommended to address the issue promptly.

5. How is code B0680 diagnosed on a 2016 GMC Sierra?

A technician will use a scan tool to verify the code, inspect the Passenger Air Bag Off indicator, check wiring and connectors for damage, and test the airbag control module.

6. Can I fix code B0680 on my 2016 GMC Sierra myself?

If the issue is due to loose or disconnected wiring, you may be able to repair it yourself. However, diagnosing and repairing airbag system components often requires specialized tools and expertise.

7. How much does it cost to repair code B0680 on a 2016 GMC Sierra?

Repair costs can vary, typically ranging from $100 to $500, depending on whether the issue is a simple wiring repair or a component replacement.

8. What tools are needed to troubleshoot code B0680 on a 2016 GMC Sierra?

Tools may include an OBDII scan tool, a multimeter for testing electrical circuits, and potentially a wiring diagram for the airbag system.

9. Can a faulty Passenger Air Bag Off indicator cause other issues in the vehicle?

While it primarily affects the airbag system, a malfunctioning indicator can lead to confusion about airbag status, increasing safety concerns.

10. Will disconnecting the battery clear code B0680 on a 2016 GMC Sierra?

Disconnecting the battery might temporarily reset the system, but it won’t fix the underlying issue. The code may reappear if the problem isn’t properly addressed.

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