If any lights do not work properly check your connections. Though trailer lighting systems are available in an array of configurations the most popular is the 4 way system.

How To Install A 4 Wire Trailer Light Connector
How to wire 4 wire trailer lights. Brown tail lightsrunning lights. Trailer wiring color code explanation. Signal and brake lights work on trailer but no taillights. Wiring new 3 wire light on trailer to replace 2 wire light. If you do not have a tilt trailer then connect the ground wire to the tongue. For the ground wire i had to extend this.
Trailers longer than 15 feet and heavier than 1500 lbs must have a brake system that means another circuit for hydraulic brakes. So the ground wire needs to be attached to the bed. Some vehicles have a 5 wire system and you need to purchase a trailer light converter that adapts the trailers 4 wire system to the vehicles wiring system. Cars or trailers no wider than 80 light diameter. Trailer wiring harness recommendation for a 2007 chevy colorado. I also found it a perfect wire for running speaker as with 4 wires bonded as one makes for easy running throughout a vehicle.
Its braded 1618 gauge wire. 4 length of wire between lights. Green right turn lightsbrakes. Why do some trailer tail lights have 3 wires and some have 2 wires. White ground wire. 106 transmitter wire length.
The 4 way system is designed so the right brake light wire and right turn signal are green. Do not seal anything with silicone until the wiring is completed to avoid scraping away silicone which is messy. The wire is great for running light turn signals pos and neg line its also labed every foot for what each wire to what light from towed vehicle to trailer as its designed for. Removable led lights provide signal lights for your towed car without you having to tap into the cars wiring or run wires under the car. Wireless transmitter plugs into your rvs 4. It is referred to as such as the system needs a mere four wires for the trailer tail lights turn signals and brake lights to illuminate.
The lights are connected to the bed but the tongue is a movable piece which may have grounding issues at the pivot point. 76 90 day warranty these wireless removable tow lights make. Wiring instructions for optronics 4 12 inch round trailer stop turn and tail light st40rb. Learn step by step how to wire trailer lights in no time with this tutorial. Wiring trailer lights can be a big task and you want to get it right. Yellow left turn lightsbrakes.