Ok, so i just changed mine. It was the switch. Disconnected the bad switch and tried to crank it and nothing happened. Put the new switch in and they worked. Lost about 3/4 pint of trans fluid. Be ready for that, it comes out quick. I'm not sure if it matters i put a small piece of thread tape on the switch before putting it in. I also had to use an adjustable wrench to get it off. Its a pain in the a$$ but hey now my lights work. Hope this helps.