What are the common electrical problems with our cars, any?

What sparks this is I purchased a 91' camaro rs from a dealer. At the time, the airbag light was always on. They said they put in a new 100 some dollar part to fix it, and it shut off. A guy doesn't see me and moves into my lane, I try to honk, and I get nothing.... Its most likely that istead of that part, they saved cash and disabled several components to fix it. I've got a dealer warranty, so i'm going back tomorrow.

I'd still like to know what common electrical problems are, the car was certified by them to be A-OK in several areas, that being one of them. I want to check anything else now as well.

Thanks guys.

 

They may have replaced the airbag with a dummy bag. Thats what it sounds like considering the srs light and no horn.
As far as the electrical problems go browsing this board would show some of the more common stuff. Power hatch release is one that comes to mind. It and the under hood light are the only two things that have caused me any problems.