Dot Trailer Wiring Diagram. Purple for backup lighting. Here are two wiring diagrams for the 7 pin n type trailer electrical plug.
Trailer wiring connectors various connectors are available from four to seven pins that allow for the transfer of power for the lighting as well as auxiliary functions such as an electric trailer brake controller backup lights or a 12v power supply for a winch or interior trailer lights. Please contact your trailer manufacturer for further details. The texas dot requires a certain number of lights.
Injunction of two wires is usually indicated by black dot on the junction of 2 lines.
There will be primary lines which are represented by l1 l2 l3 and so on. A y harness provides all the wire needed to get to every light on your trailer. Dot trailer lighting diagram. Injunction of two wires is usually indicated by black dot at the junction of two lines.