7 Way Trailer Plug Wiring Diagram 1999 Ford. Someone told me you had to wire it to the trucks ignition switch for it to work with the key off. I guess it's too much to ask if all trailers and connectors are consistent about wire color usage, huh? thanks.
The thing is I have to go to the tail lights to make attachments. Someone told me you had to wire it to the trucks ignition switch for it to work with the key off. The wiring diagram is a standard for the seven pin plug, as far as positions go.
Your trailer wiring plug doesn't match the one on your vehicle.
Color white blue green black red brown yellow.
The wife and kids stare daggers into your head as you curse your way through hours of agonizing wiring "Trailer Wiring Diagrams." Our trailer wiring diagram is a colour coded guide designed to help you wire your trailer plug or socket. Looking to the rear for the trailer plug ~ the pins are reversed - and the simple way to keep it straight is to think in terms of "PASSENGER SIDE" and DRIVER SIDE".