Towing Package Wiring Diagram
If your truck has a built in 7 pin socket but you only need 5 of the pins.
Towing package wiring diagram. Complete with a color coded trailer wiring diagram for each plug type this guide walks through various trailer wiring installation solution including custom wiring splice in wiring and replacement wiring. Check out or trailer wiring diagrams for a quick reference on trailer wiring. You can use a circuit tester to verify connections. Trailer wiring diagrams trailer wiring connectors various connectors are available from four to seven pins that allow for the transfer of power for the lighting as well as auxiliary functions such as an electric trailer brake controller backup lights or a 12v power supply for a winch or interior.
In the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest. Wiring diagram that the ford replacement oem tow package wiring harness 118243 uses if you check out the picture i attached the middle set of 7 ways is the wiring diagram colors you ll need to use for the ford replacement oem tow package wiring harness 118243 that you referenced. Above we have describes the main types of trailer wiring diagrams. To connect the electric system of your trailer to the vehicle you will be using special connector.
The below information is for reference and is commonly used throughout the industry but can vary depending on who built the trailer. If your vehicle is not equipped with a working trailer wiring harness there are a number of different solutions to provide the perfect fit for your specific vehicle.