Trailer Running Lights Issue

workhardplayharder wrote:
Start with checking ground first.

Yup, then make sure the plug on the pickup works. Then take the plug on the trailer apart and check in there. After that if no luck you need to start working you way back. Sometimes there is a junction box mounted under the front of the trailer or maybe on the tong. Sometimes this junction box is just inside the trailer under the front seat or something. If no luck there then after that is may be easier to start over and run new wires to everything. TT manufactures often run the tail light wires in the walls and sometimes mice can get in there and eat the wires. You may should be able to run some plastic conduit under the trailer with the new wires pulled through it. Then a branch off of the conduit in the middle for the break wires and then all the way to the back and up to the tail lights. If your lucky you may be able to pull the wires up through the back wall to make it look nice. If not you just have to run them up the back of the trailer. It looks like hell but, as long as they work that's the important thing.