7 Way Truck Trailer Plug Wiring Diagram. Find the trailer light wiring diagram below that corresponds to your existing configuration. Trailer plug wiring is standardized across all vehicles, no point trying to find vehicle specific info.
Center pin was added for back up lights. The manufacturer provides a wiring diagram - Which bears little resemblance to He's not comparing the new pigtailed plug he bought to the trailer or truck..wiring diagram there. Trailer wiring is very important to towing safety.
Picked up car trailer the other day.
Learn all about trailer wiring at HowStuffWorks.
Plug bad and electric brakes wires not connected on plug. The wiring connections and placement are different. The top countries of supplier is China, from.