4 Way Trailer Wiring Diagram. Make sure that all cables are electrically conductive. 4 way flat molded connectors allow basic hookup for three lighting functions.
Trailer electrical connectors come in a variety of shapes and sizes. Looking at the front of the socket on the vehicle side with the cover raised the top left pole is the yellow left turn brake pole the top right pole is the right turn brake pole the bottom left pole is the white ground pole and the bottom right pole is the tail light pole. 10 22 2009 9 50 14 am.
Most of the time the 4 way connector is wired as follows.
The first thing you need to do is make sure that your connector works properly. The basic purpose remains the same whether your truck and trailer is using a 4 way 5 way 6 way or 7 way connector. Trailer electrical connectors come in a variety of shapes and sizes. 10 22 2009 9 50 14 am.