So what is the truck fuse that controls the auxillary lights in a trailer? Not the fuses that control the turn signals and brakes.
I have a bumper pull trailer with an electric jack that doesn’t work. I hauled it off to somebody that understands trailer electrical issues and we confirmed that the jack works fine. Besides the jack I have lights in the dressing room that do not work either. So it is either a blown fuse ( which I have had in this crap truck) or the 7 point plug which I have replaced after I bought the truck.
I do not have an owner’s manual and I have been trying to determine which fuse this is in the diagrams. All the turn signals, brakes, lights work fine and I know there is another fuse for the auxiliary electrical systems in the trailer like the dressing room lights and the jack which plugs into the 7 point prong. I am going to try to replace the fuse if I can figure out which one it is and eliminate that issue before I take my truck back to him for more diagnostics. It would be nice if I could eliminate this or even better - find and fix it myself and not have to cart the truck off again when he has more time to look at it.