Thanks for the reply. No factory manuals for the truck. I bought the truck used about 8 months ago. They worked for about 2weeks after I bought the truck. So I added a wire from the headlight switch to the driver front parking light an they worked again. But not in the auto headlight position. In the auto position Everything will work but the front parking lights. I'm thinking the headlight switch may be bad but not sure, Cause some days the dash lights and the parking lights won't come on when I turn the switch to parking lights. Cover the dash sensor and flip to auto and everything but the front parking lights work???? Just can't figure it out.