AutoCodes – GMC – B0680 GMC

B0680 GMC Code - Passenger Air Bag Off Indicator Circuit

Quick Answer

The passenger air bag ON/OFF indicators are used to notify the driver when the passenger presence system has enabled or disabled the passenger instrument panel air bag. Common causes include Faulty Passenger Air Bag Disable Indicator, Passenger Air Bag Disable Indicator harness is open or shorted, Passenger Air Bag Disable Indicator 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: B0680 GMC indicates Passenger Air Bag Off Indicator Circuit.
Common causes: Common causes include Faulty Passenger Air Bag Disable Indicator, Passenger Air Bag Disable Indicator harness is open or shorted, Passenger Air Bag Disable Indicator 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 1,194

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 Nov 16, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0680 GMC Description

The passenger air bag ON/OFF indicators are used to notify the driver when the passenger presence system has enabled or disabled the passenger instrument panel air bag. When the Inflatable Restraint Sensing and Diagnostic Module (SDM) receives the appropriate serial data message from the passenger presence module (if equipped) the inflatable restraint sensing and diagnostic module will then provide voltage to the appropriate indicator. When air bag disable switch (if equipped) has been switched to either OFF or ON, the corresponding air bag indicator will be illuminated by the inflatable restraint sensing and diagnostic module. The Diagnostic Trouble Code (DTC) will be set when the Inflatable Restraint Sensing and Diagnostic Module detects improper voltage on the control circuit of the indicator.

OBDII Code B0680 GMC - Passenger Air Bag Off Indicator Circuit - AutoCodes.com — B0680 GMC Code - Passenger Air Bag Off Indicator Circuit

What does this mean?

What are the Possible Causes of the DTC B0680 GMC?

Faulty Passenger Air Bag Disable Indicator
Passenger Air Bag Disable Indicator harness is open or shorted
Passenger Air Bag Disable Indicator circuit poor electrical connection
Faulty Inflatable Restraint Sensing and Diagnostic Module (SDM)

How to Fix the DTC B0680 GMC?

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

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0680 GMC 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 B0680 GMC code?

Need more information on how to fix the B0680 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0680 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

B0680 2014 GMC Sierra — Passenger Air Bag Off Indicator Circuit
B0680 2015 GMC Sierra — Passenger Air Bag Off Indicator Circuit
B0680 2016 GMC Sierra — Passenger Air Bag Off Indicator Circuit
B0680 2017 GMC Sierra — Passenger Air Bag Off Indicator Circuit
B0680 2018 GMC Sierra — Passenger Air Bag Off Indicator 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.

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 GMC Code

1. What are common symptoms of OBDII code B0680 in a GMC related to the Passenger Air Bag Off Indicator Circuit?

- Common symptoms include the passenger airbag off indicator staying illuminated or not functioning properly.

2. What are possible causes of OBDII code B0680 in a GMC?

- Possible causes include a faulty passenger air bag off indicator module, wiring issues, or a malfunctioning airbag control module.

3. How can I diagnose the Passenger Air Bag Off Indicator Circuit issue causing OBDII code B0680 in my GMC?

- Diagnosis typically involves checking the indicator module for power and ground, inspecting the wiring for damage, and testing the airbag control module for faults.

4. Can OBDII code B0680 in a GMC be reset without fixing the underlying issue?

- Resetting the code without addressing the underlying problem may temporarily turn off the warning light, but the issue will likely persist and the code may reappear.

5. Is it safe to drive a GMC with OBDII code B0680 related to the Passenger Air Bag Off Indicator Circuit?

- It is not recommended to drive the vehicle with an illuminated airbag warning light, as it indicates potential airbag system malfunctions that can affect safety in the event of a collision.

6. Are there any DIY repair tips for fixing OBDII code B0680 in a GMC?

- DIY repair tips may include checking and securing the wiring connections, inspecting the indicator module for visible damage, or resetting the system after ensuring all connections are secure.

7. How much does it typically cost to repair OBDII code B0680 in a GMC at a professional auto repair shop?

- Repair costs can vary depending on the exact cause of the issue, but it may range from $100 to $300 or more, considering parts and labor.

8. Can a GMC dealership service department help with diagnosing and repairing OBDII code B0680?

- Yes, a GMC dealership service department is equipped to diagnose and repair issues related to OBDII codes, including those affecting the airbag system.

9. Will fixing OBDII code B0680 in a GMC require replacing the entire airbag system?

- In most cases, fixing the Passenger Air Bag Off Indicator Circuit issue causing OBDII code B0680 does not require replacing the entire airbag system, but rather specific components related to the indicator circuit.

10. How important is it to address OBDII code B0680 in a timely manner for a GMC owner?

- It is crucial to address OBDII code B0680 promptly, as it indicates potential safety concerns with the passenger airbag system, which can impact the vehicle's ability to protect occupants in a collision.