Wiring a 5 way trailer connector by color. Installing your 4 pin trailer wiring system is easy if you follow the correct procedure.

64fde Trailer Wiring Diagram 4 Pin Flat Wiring Library
Wiring diagram for 4 pin trailer plug. 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. The four wires control the turn signals brake lights and taillights or running lights. Blue electric brakes or hydraulic reverse disable see blue wire notes below in the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest. As the name implies they use four wires to carry out the vital lighting functions. If it is not no amount of wiring will get the lights to work. 4 way trailer connectors are.
The first thing you need to do is make sure that your connector works properly. Installing a brake controller on a 2002 dodge ram 1500 equipped with a factory 4 way. 4 way trailer connectors are typically used on small trailers such as boat snowmobile utility and other trailers that that do not use brakes. Buy a 4 pin wiring kit with wires at least twenty feet in length so its long enough for your trailer. 4 pin 7 pin trailer wiring diagram light plug posted by unknown posted on 1106 am with 786 comments this article shows 4 7 pin trailer wiring diagram connector and step how to wire a trailer harness with color code there are some intricacies involved in wiring a trailer. The most common wire thickness for a trailer is 16 gauge but i bought thicker wiring for added durability.
They also provide a wire for a ground connection. Installing a trailer wiring harness on a 2012 ford focus. Depending on the size of your trailer and the number of lights you might want to check on the internet for the recommended gauge for your specific trailer. Can trailer 4 way be ran to trailer with 8 wires for trailer wiring. 1 4 wire the first 4 pins white brown yellow green just like the 4 pin connector above. One way to check for faulty wires is to use a circuit tester.
Replacement 4 pole trailer connector for utility trailer with 5 wire wishbone wiring setup. Make sure that all cables are electrically conductive. 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.