3 Wire Trailer Lights Diagram. To hook up your lights you will need to splice together the taillight and stop turn wires. 4 way trailer connectors are typically used on small trailers such as boat snowmobile utility and other trailers that that do not use brakes.
5 wire trailer wiring diagram. And the third diagram using clearance lights. An extra pin allows using another extra function.
Most of us aren t electricians but that doesn t mean wiring a trailer or replacing corroded wiring is beyond us.
The four wires control the turn signals brake lights and taillights or running lights. These too would run off the brown or parking light wiring same as the license plate light. To hook up your lights you will need to splice together the taillight and stop turn wires. 4 way trailer connectors are.