For the last couple months my right turn signal no workie. I was rewiring my boat trailer and it was hooked up to my truck, but I did not have the wiring plugged in. When I plugged it into my truck I was having trouble getting all the lights to come on the trailer, so we had it plugged in and were trouble shooting it. We finally gave up and when I went to start the truck, it was dead?!? The batteries were charged, it was like the was no connection from the batteries though. THe batteries were pretty hot, so I just left it there. Came back later on that night and it fired up no problems. I cracked open the shop manual and found were the possible bad fuses were and replaced them. Lights worked fine until a couple months ago and once again, no workie. I am in the middle of moving and have my manuals packed up and for the life of me I cant remember what fuses I replaced. I need to get the truck inspected this month, so was wondering what the problem could be that is causing this. Any hints...