Four Pin Trailer Wiring Install (Wiring Diagram & Info)
2021-9-2u2002·u2002Installing your 4-pin trailer wiring system is easy if you follow the correct procedure. The first thing you need to do is make sure that your connector works properly. If it is not, no amount of wiring will get the lights to work. Make sure that all cables are electrically conductive. One way to check for faulty wires is to use a circuit tester.
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