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1988 3/4 ton 3x3 diesel it lived in the woods for awhile. old sheriff crew cab turn signals work except when you turn on head lights. dash light do not work either. bought a book but it does not cover any of this
The thing about the bush is the squirrels a and chipmunks that love to store nuts or whatever in your vehicle they also love to chew on wiring. Your best bet is to follow the wiring from the headlight backward through the truck looking for any bare wires that could be touching other bare wires or part of the metal on the truck. Its time consuming but also about the only way to find your problem Good hunting
