7 Pin Trailer Brake Wiring Diagram. 3 4 inch by 1 inch 6 way rectangle connectors right turn signal green left turn signal yellow taillight brown ground white. Complete with a color coded trailer wiring diagram for each plug type including a 7 pin trailer wiring diagram this guide walks through various trailer wiring installation solution including custom wiring splice in wiring and replacement wiring.
Beware the color coded labels are wrong. The basic purpose remains the same whether your truck and trailer is using a 4 way 5 way 6 way or 7 way connector. Considering the cost this is great.
Use the 7 pin connector anyway see below and just leave out the last 2 wires.
Beware the color coded labels are wrong. Trailer electrical connectors come in a variety of shapes and sizes. If the 7 way tested normal then something is going on with the wiring on the trailer side. This 7 pin trailer wiring plug comes ready to splice into your existing trailer wiring.
