Complete trailer wiring diagrams for 7-pin, 6-pin, 5-pin and 4-pin connectors. Wire color codes, gauge chart and step-by-step hookup guide for every trailer plug type.. Learn how to wire a 6-way trailer plug with the help of a detailed diagram and step-by-step instructions. Ensure proper connection for all your trailer's electrical needs.
Although 6-way connectors are not as common as 4-ways and 7-ways, many trailers do use 6-way wiring harnesses. In particular, 6-way wiring harnesses are common on gooseneck and horse trailers. 6-ways provide the required running lights, turn signals, brake lights, and ground for the trailer. They also provide two additional pins, a brake controller output and a 12V hot lead. Trailer wiring can.. A trailer wiring diagram maps the electrical connections between your tow vehicle and trailer, showing which colored wires connect to which pins for lights, brakes, and auxiliary power. The four most common connector types are 4-pin (basic lights), 5-pin (lights + surge brakes), 6-pin (lights + electric brakes), and 7-pin (full-featured with brakes, power, and reverse).