6 Way Plug Wiring Diagr am Standard Wiring* Post Purpose Wire Color TM Park Lights Brown GD Ground Black (or White) S Trailer Brakes Blue LT Left Turn/Brake Light Yellow RT Right Turn/Brake Light Green A Accessory Red The most common variances on this diagram will be the (blue/brake) & (red/Acc.) wires will be inverted. If there is no. This includes a 6 way trailer plug, wire strippers, electrical tape, a voltage tester, and a wire cutter or crimping tool. It's also a good idea to have a wiring diagram or guide specific to your trailer and vehicle handy. Identify the color-coded wires. The first step in wiring a 6 way trailer plug is to identify the color-coded wires.
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.. In the Trailer Wiring Diagram / Connector Application Chart below, use the first 5 wires, then ignore the rest. Following those 5 colors will give the 5 wire trailer light wiring diagram.. SAE Trailer Wire Color Codes - Colors Coordinate With Trailer Wiring Diagram; Connector Style Pin Function Color Description; 7-Pin: 5-Pin: 4-Pin: 1.