Car wiring diagrams: Ford F 150 Tail Light Wiring Diagram, wiring diagram, wire wiring harness, schematic circuit diagram, wiring diagran, wireing diagram, wirring diagram, wiring daigram, wiring diagrams. I wired a LED tailgate light to my pin hitch but now my truck thinks I have a trailer connected disabled my sensors. There is no way to bypass .Taillight wiring diagram? Bullnose F, F Larger F Series Trucks..Eric Hi. I will create a pdf file of the diagram for you Customer thanks. do you have any suggestions on trouble shooting it? i didnt think i needed .