4 Prong Trailer Plug Wiring Diagram. Complete with a color coded trailer wiring diagram for each plug type, this guide walks through various trailer wiring installation solution, including custom wiring, splice-in wiring and replacement wiring. Don't worry about the extra wires, the trailer with a four wire plug doesn't use them.
It plugs right into the harness on the tailights and you snake the wiring underneath the bed. Four-prong dryer cords have four wires including the neutral and two hots plus a green ground wire. Don't worry about the extra wires, the trailer with a four wire plug doesn't use them.
Is it a special plug for Jeep or is something else going on?
Connectors are used between the two to allow disengagement when not towing.
Our trailer wiring diagram is a colour coded guide designed to help you wire your trailer plug or socket. I'm unable to look at it right now anyways. I re-wired a trailer and used led brake lights.