5 Wire Vs 4 Wire Trailer Harness. These should be coloured black and red. With the converter connected to your rig but not to the trailer, have you checked the wires one at a time with a multi meter to see if you have the proper function and voltage from each wire, before you hook it up.
Video tutorial on how to wire trailer lights. Any vehicle towing a trailer requires trailer connector wiring to safely connect the taillights, turn signals, brake lights and other necessary electrical systems. The original wiring on my boat trailer was damaged and installed incorrectly by the previous owner.
Any vehicle towing a trailer requires trailer connector wiring to safely connect the taillights, turn signals, brake lights and other necessary electrical systems.
What you have is a split harness, sometimes called a wishbone style.
But wiring a trailer may not be easy. This is the easiest wiring you will ever have to do. Locate a suitable location for the harness clamp for the four wire trailer light connector and harness underneath the back bumper area.