Air Bag Light goes on after idler arm installed. Saw another person on the forum with the same problem. I replaced my idler arm on my 2002 Blazer 2 dr. 2wd. After I was done to take it for a test ride the air bag light was on and it wasn't on prior to the repair. It turns out the air bag wiring harness is draped right over the idler arm/frame interface from the factory. If you don't pay attention like me, the wire will get pinched between the idler arm and the frame when you tighten the fasteners down.