pitcherofnectar
Junior Member
It’s not the trailer, because this happens on every trailer I have. The right turn signal/right brake light doesn’t work on any trailer I connect, but when I turn on the truck’s headlights the low intensity red running light on the right side of the trailers does illuminate. On the truck, the right side light works totally fine, brake, turn signal and running lights all as normal. I have replaced the trailer connector on the truck, both the 4 pin and the 7 way sockets. No luck.
Do I need a new TIPM? New wiring harness? Hunt down the fault in the brake/turn wire and fix it? I know the harness has 3 sections with plugs in different parts of the truck but I can’t find which one has the fault or if it’s the TIPM itself not sending a signal. The fuse looks good
Do I need a new TIPM? New wiring harness? Hunt down the fault in the brake/turn wire and fix it? I know the harness has 3 sections with plugs in different parts of the truck but I can’t find which one has the fault or if it’s the TIPM itself not sending a signal. The fuse looks good