Road King Trailer Wiring Diagram. There are several standards for trailer wires, and if you search, you'll find a different Trailer Wiring Diagram for each. The wiring for your road king tail/turn lights is: Brown - right turn, Violet/black - left turn, Blue - tail light, Red/yellow - brake, Black - ground to all lights.
It is easier than you think. Wiring Guidelines As required by law trailers must at least running lights, turn signals and brake lights. I hope this helps some folks, because it's pretty tough finding this online.
This connection can be accomplished with a.
DO NOT splice or cut into your wiring harness.
This color trailer wiring diagram will help you when you need to connect your trailer to your truck's wiring harness or repair a wire that isn't working. Wiring Guidelines As required by law trailers must at least running lights, turn signals and brake lights. That diagram is very clear on that.
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