Just a follow up to my air bag light on.The thrid person I had look at my truck found the problem and fixed it.It was my parking brake,every time I used the parking brake it rubbed a wire that had something to do with the air bag.Some heat shrink.wire loom and bending a bracket a little.I was told it was fixed forever.I hope this helps someone with a air bag light on.I'm glad to have my truck fixed.