the side airbag what do you mean bye that
Sorry about that.
When you said "passenger side airbag" I assumed side airbag, not the passenger side front airbag
The sensors for that airbag are somewhere behind the front bumper panel,
and will have to be replaced.
With any luck, maybe you can get a printout (exploded view) from your local Dealer that will show the location.
and also the seat belt is fine i dont think it was wore in the crash it works fine
It's most likely not
You can replace everything else and reset the light (computer reset),
but the first time you fire up the engine, the light is going to come on again, and stay on.
If an airbag went off on that side it will have fired the small charge in the seat belt tensioner regardless.
What it does is cinch up the belt so there's no slack when the airbag goes off.
Yes, it will function properly, but it will keep setting the airbag light off until you replace it.
The only chance it's OK is if the circuit is setup to not blow the charge if the seatbelt is unbuckled.
But then again, you're not sure if it was buckled or not.
Certainly, you can fix everything else first and reset the computer,
but if the light comes back on, you're going to need a new seat belt tensioner assembly.
They're not that much, and around $30 IIRC.