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Replaced Air Bag Control Module

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I recently got a code from th e dealer in regards to the Air Bag System. It was low voltage. 

I removed the seat and saw the module was covered in wet sand and the carpet padding was soaked. To may trips to the lake and the beach. I think the rubber floor mats just let any water run under the seat under accelaration.

Anyway, I found the same part # at a U Pull Yard.

I checked the connections and replaced the module, after disconneting the Neg batterty cables for 30 min.

The error is still on the display.


I see from All Data, that the "set up SDM via the special functions" via a GM tech-2 scanner needs to be completed.


Has anyone replaced the air bag control module before, if so, was the BCM update required.


Asking to see if the module is picked up is also bad.


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The process basically links the SIR module with the BCM, perhaps with some programming/configuration mixed in (as different vehicles will have different sensors/air bag systems).


From what I can tell, the GMT900's have the computers more tightly linked together, so you can't mix & match them like you can w GMT800 modules.


It's possible the module is bad, but you probably won't know until it's linked to the bcm.  It's also possible there are wiring and/or connector problems (as you mentioned there was a bunch of water around it).

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