4 Way Trailer Plug Wiring Diagram Ford. Wiring Guide for Trailer Plugs, Adapters & Sockets. As the name implies, they use four wires to carry out the vital lighting functions.
As the name implies, they use four wires to carry out the vital lighting functions. Various styles of connectors are available with four to seven pins to allow transfer of power for the lighting as well as. It has the seven pin connector.
They include wiring diagrams and technical service bulletins.
In most cases their diagrams are right from the factory manuals.
It was missing the plug but the wiring harness is there. They include photos instead of factory diagrams. For the later throttle-by-wire engines, Ford has developed a control pack that uses a stock-style Ford computer and a plug-and-play wiring harness that controls just the engine.