2002 steering wheel airbag

So my 02' Tacoma's horn does not work. When I bought the truck the front bumper was pushed in (just cosmetic, already fixed), but I have a feeling the airbag may have deployed, hence the horn not working. All my "idiot lights" come on and off when I start the truck, and from what I understand sometimes the airbag is replaced, but the horn wiring is not always re-connected. Anyone have any words of advice so I don't kill myself? Pictures would be amazing. Thanks in advance.

 

if ur gonna tear into the air bag/ horn unit do yourself a big favor and disconnect the battery. wait atleast a minute til u tear into it... there should be like 2 torx screws on the sides of the wheel, remove those, then the a/b comes out. disconnect it. then check the connection to the horn, was it connected? if so then maybe u dont have battery power or the clock spring is broken..,

 

So your airbag light comes on when you turn on the truck for a few seconds then turns off ?

Horn circuit: SRSsystem: