7 Way Trailer Plug Wiring Diagram Gm. Color white blue green black red brown yellow. If you remove a connector, double over the wire before installing it.
Determine which color wire supplies constant power to the ignition switch. Trailer plug wiring is standardized across all vehicles, no point trying to find vehicle specific info. Look at the wiring diagram for your truck's ignition switch.
Trailer plug wiring is standardized across all vehicles, no point trying to find vehicle specific info.
Wiring an aftermarket plug as opposed to an original equipment manufacturer plug may void the existing warranty on your truck's electrical system.
Is there a diagram anywhere of what each of the pins on the trailer plug are for? They can be purchased as a standalone plug for the truck or trailer, or as a complete loop. Determine which color wire supplies constant power to the ignition switch.