how to read airbag light 95 suburban

[mistaake]

When I took my SUburban into the shop to get an overall pre-purchase (well, post-purchase in my case) inspection they noted that the Air Bag light was on and supposedly checked the code, and said it was a problem with the passenger side airbag. BUT I don't think it has a passenger side airbag, and my horn doesn't work, so isn't that a problem with the airbag in the driver steering wheel?

How can I pull the codes for the airbag system? I have a code reader that blinks service engine soon light (didn't get any codes) and ABS (got some code but i don't care about that) I don't know about airbag.

Thanks!

1995 Suburban K1500 5.7L TBI