Service airbag light came on?

[JML07denali]

My light came on out of nowhere and it's on a 2007 Yukon Denali. Where should I start to diagnose? Any help is appreciated.


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[denalianyone]

Front sensors under the splash shield in the front. They are a bit pricey but it solved my air bag light problem.


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[denalianyone]

There are two types of sensors make sure you get the correct one.


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[JML07denali]

Front sensors under the splash shield in the front. They are a bit pricey but it solved my air bag light problem.


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How much did you pay?


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[BeenChevy]

Re-seat the wiring harnesses under your seats first. If that doesn't resolve it, start your diagnostics with a Tech2 and narrow it down. You're dealing with yards of wire loom between the sensors.

 

[denalianyone]

How much did you pay?


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Around $90 a sensor


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[denalianyone]

But check the wiring harness under the driver seat first near the center console like mentioned above.


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[JML07denali]

Is the airbag harness under the driver seat or the passenger seat?


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[BeenChevy]

Under the passenger for sure. Someone on here should have the schematic. I can't remember if the side impact also routes under the driver. Any luck with a tech 2? The dealer can pull the specific location of failure... For $100 unless you're a schmoozer

 

[JML07denali]

I'm going to try reseating the harnesse first. I called the dealership they said there is a recall on this but GM hasn't yet released a fix?


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[denalianyone]

Is the airbag harness under the driver seat or the passenger seat?


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Under the driver side in my Lade


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[JML07denali]

Well reseated both wiring harnesses under drivers and passengers seat and no change. I think in might be the sensors behind the front bumper. I remember parking a few days ago and pushed up against a wood barrier with the front bumper when I parked a day later the light came on.


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[BeenChevy]

Well reseated both wiring harnesses under drivers and passengers seat and no change. I think in might be the sensors behind the front bumper. I remember parking a few days ago and pushed up against a wood barrier with the front bumper when I parked a day later the light came on.


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Haha ya left that part out. I read before on the NBS trucks the ones just behind the bumper can be depressed and not deploy the airbags - i'm sure that's the same with your truck. Curious as to what you find back there.

 

[sk1dm4rk]

If your front sensors are like mine, it would've taken a heck of a hit on that barrier. The sensors are not right behind the bumper, they are directly below the radiator on the frame.

As BeenChevy said, put a Tech 2 on it and it will tell you which sensor is bad, if that is what is actually wrong.

 

[Tacky]

There are a ton of possible causes. You need to get a scanner on there to see what component is setting the code to have any reasonable chance of fixing it.

 

[denalianyone]

The main causes r the harnesses and/or sensors behind the bumper. My light was on for a year and change before I finally changed the sensors.


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[JML07denali]

The main causes r the harnesses and/or sensors behind the bumper. My light was on for a year and change before I finally changed the sensors.


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My issue is my plates are up for renewal this month and in Missouri we have safety inspections. I would be curious to see if I would pass with the airbag light on?


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[denalianyone]

Ok in NY the air bag light is not a requirement to pass inspection. Yet check with your local shop.


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[Trilla_one]

*old thread revival*

Mine has been on for about two months. I don't have a tech2 but a shop scanned for me and said it was the front airbag sensor 2. My question is does anyone know if that is the driver or passenger side of the radiator?

If they weren't $170 a piece I would replace them both at the same time but rather just get rid of the annoying light for now. I've been driving the truck for 3+ years without a splash shield so figured that's what caused it.

Also if anyone knows where I can get a quality replacement for less than $170 let me know

 

[intheburbs]

There's one on each side, and they're identical. Buy one, replace one of them and see if the light goes off. If not, swap them and you should be good.

They're expensive because they have gold-plated connectors for maximum corrosion resistance. Even the Dormans are expensive.

I've replaced all 4 on my two trucks.