7 Way Trailer Plug Wiring Diagram Trailer Side. Trailer Wiring Diagrams showing you the typical wiring for most single axle trailer and tandem axle trailers. Wiring an aftermarket plug as opposed to an original equipment manufacturer plug may void the existing warranty on your truck's electrical system.
I double checked the wiring in my truck vs. the wiring diagram and it was the same. If you are rewiring your trailer completely, check out our trailer rewiring guide. Wiring an aftermarket plug as opposed to an original equipment manufacturer plug may void the existing warranty on your truck's electrical system.
Trailer Plug Wiring Diagram - Free download as PDF File (.pdf), Text File (.txt) or read online for free.
Plugs (trailer side) and sockets (vehicle side) are available in all standard formats and can be spliced into your existing tow wiring.
I also made sure the contacts were clean in the male plug on the truck. Pretty basic just use a crimping tool and some basic t-tap connectors. Learn all about trailer wiring at HowStuffWorks.