AutoCodesGMC – B0680 2015 GMC Sierra

B0680 2015 GMC Sierra 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 2015 GMC Sierra 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 260
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 16, 2022
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Code B0680 2015 GMC Sierra 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 2015 GMC Sierra - Passenger Air Bag Off Indicator Circuit - AutoCodes.com
B0680 2015 GMC Sierra Code - Passenger Air Bag Off Indicator Circuit

What are the Possible Causes of the DTC B0680 2015 GMC Sierra?

  • 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 2015 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0680 2015 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 B0680 2015 GMC Sierra code?

Need more information on how to fix the B0680 2015 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0680 2015 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 B0680 2015 GMC Sierra Code

1. What does the OBDII code B0680 mean on a 2015 GMC Sierra?

B0680 indicates a fault in the Passenger Air Bag Off Indicator Circuit, which is responsible for showing whether the passenger airbag is active or deactivated.

2. What are the common symptoms of code B0680?

The most common symptoms include the passenger airbag status light not illuminating, staying on constantly, or failing to indicate the correct airbag status.

3. What causes the B0680 code in a 2015 GMC Sierra?

The code can be caused by a faulty passenger airbag indicator, damaged wiring or connectors in the circuit, or a malfunction in the airbag control module.

4. Can I still drive my 2015 GMC Sierra with the B0680 code?

While the truck may still operate, the airbag system may not function properly in an accident, posing a safety risk. It’s important to address the issue promptly.

5. How is the B0680 code diagnosed?

A technician will use a scan tool to read the code, inspect the passenger airbag indicator circuit, check for damaged wires or connectors, and test the airbag control module.

6. How do I fix the B0680 code on my GMC Sierra?

Repairs may include replacing the passenger airbag indicator, repairing or replacing damaged wiring, or reprogramming or replacing the airbag control module.

7. How much does it cost to repair the B0680 code?

The cost varies depending on the repair, but replacing a faulty airbag indicator can range from $50–$150, while more extensive electrical repairs could cost $200 or more.

8. Can clearing the B0680 code with a scan tool fix the problem?

Clearing the code may temporarily reset the warning, but if the underlying issue isn’t resolved, the code will return.

9. Does a blown fuse cause the B0680 code?

A blown fuse in the airbag system could potentially cause issues with the indicator circuit. Checking the fuses is a good first step.

10. Do I need professional help to fix the B0680 code?

If you’re comfortable with basic electrical troubleshooting, you can inspect the wiring and connections yourself. However, for module-related issues or if you're unsure, it’s best to consult a certified technician.

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