Trailer Wiring Diagram Truck Side. Plugs (trailer side) and sockets (vehicle side) are available in all standard formats and can be spliced into your existing tow wiring. This color trailer wiring diagram will help you when you need to connect your trailer to your truck's wiring harness or repair a wire Even on the truck side, where the trailer wiring intersects with your vehicle's wiring harness, there are These four colored wires make up your trailer's wiring system.
It does seem like a strange problem, but something similar happened to me when I wired On alot of the trailer plug kits, they have pics and diagrams in the package. Find the trailer light wiring diagram below that corresponds to your existing configuration. The thing is I have to go to the tail lights to make attachments.
The brown wire is attached on one side to the rear lights and market lights.
If you are rewiring your trailer completely, check out our trailer rewiring guide.
I used the search function but didn't see the trailer wiring diagram with the factory color codes or lists with them. The thing is I have to go to the tail lights to make attachments. You'll need to cut the main brown wire near the marker light.