Trailer Battery Wiring Diagram. Previous post central nervous system brain diagram. White pin to your ground.
Bolt breakaway switch to frame of trailer or battery case bracket. The trailer wiring diagrams listed below should help identify any wiring issues you may have with your trailer. You can also see other wiring diagram below.
Green pin yellow pin for right brake light and turn markers.
Below we have the wiring diagrams for both a 7 and 13 pin connector. Purple for backup lighting. Wiring diagram for a 13pin euro trailer plug. Here is the diagram for 7 pin connector.