2006 Chevrolet TrailBlazer - airbag light doesn't come on

The horn stopped working so to pass inspection last year we bypassed the horn with a toggle switch. Thought that would be it. Well it passed no problem. Well this year it failed because the airbag light does not come on when the key is turned and it does the system check. What do you think could be the problem? I have been told it is probably the clock spring.

I doubt it. That would turn the light on and leave it on.

Rather than guessing from the internet, why don’t you take it to a mechanic that has the tools to scan the airbag computer and actually find out what is wrong?