Of course not. Not every scanner is created equally, but you can read them at home yourself
without an expensive scanner. I know this for a fact as I've done it myself. Besides, unless you know for sure they cannot help him at one of those stores, why not leave it as an option for the person as opposed to giving the single option of finding and/or purchasing an expensive scan tool? The average person doesn't have the need for a thousand dollar scan tool. (Disclaimer: I do not know for sure if any of those stores can read an airbag code or not myself, but imo there is absolutely enough of a chance to at least warrant a call.
) Call around anyway, there may be a place or service center that will scan your airbag codes for free and save you the hassle in the first place. Good luck!
Also, as was already posted above, it probably is the clockspring. Mine
suddenly went bad after GM performed the first temporary "repair" recall on my SRS system.
Which, strangely enough, has happened to many others. That's not suspicious...