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How do you diagnose the air bag light on a 2002 GMC Envoy?

**Here is a general guide to diagnosing the airbag light on a 2002 GMC Envoy:*

1. Start by checking the battery and connections. Make sure the battery has a full charge and that the terminals are clean and free of corrosion. If necessary, use a brush to clean the terminals and then reconnect the battery.

2. Look under the seat for any loose or damaged wires. If you find any loose or damaged wires, reconnect them or repair them as needed.

3. There may be one or more diagnostic trouble codes (DTCs) stored in the airbag control module that can provide more information about the problem. To retrieve the fault codes, you will need a scan tool. Once you have the codes, you can look up their meanings in the vehicle's repair manual or online.

4. Common causes of the airbag light coming on include:

* Faulty or damaged airbag sensor.

* Loose, damaged, or corroded electrical wiring.

* Faulty or damaged airbag module.

* Faulty or damaged seat belt buckles.

* Faulty or damaged clockspring.

5. If the problem persists, you may need to take the vehicle to a mechanic for further diagnosis and repair.

Please note that this guide is for informational purposes only, and it's always best to consult an experienced technician for proper diagnosis and repair of airbag system.