Wiring Diagram For Trailer 4 Wite. Not sure which wires attach to what on your trailer connectors? The White Wire is the "Ground" or "Negative" wire connecting to the vehicle battery "minus" side.
Most fords place a wiring diagram on the top cover of their radios. Wiring Diagram Bundle: Customizable High-Resolution PDF (Printable) with built-in calculator. The Trailer Wiring Diagram and Connector Application Chart.
Trailer Plug Wiring Diagram - Free download as PDF File (.pdf), Text File (.txt) or read online for free.
Find the trailer light wiring diagram below that corresponds to your existing configuration.
The white wire must be attached to the trailer for the grounding and power supply of the lights. White: ground Brown: tail/running lights Green: right turn/brake Yellow: left turn/brake. The Trailer Wiring Diagram and Connector Application Chart.