[98tahoe4x4]

So far im still having problems. I noticed then when the truck is running and the lights wont go out that if you sit in there for a min the will flicker not on and off but they will keep dimming. I replaced the 2 door switches and the headlight switch still no luck. Any way to test the modules? You hear the mudule click when it should but they just dim they wont shut off all the way. Any ideas?