7 Pin Flat Trailer Light Wiring Diagram. Not sure which wires attach to what on your trailer connectors? Here's the wiring diagrams showing the pin out for the plug and socket for the most common circle and rectangle trailer connections in use in Australia.
The second diagram shows two brake lights, two indicators, two side lights and a fog light. Trailer Light Wiring: Diagrams & Types of Connectors. Let's see what types of connectors the trailer light wiring industry uses today.
This IS the standard trailer plug wiring setup.
Many different harness types are used to connect tow vehicles' power sources to the electrical wiring on trailers.
What is the best way to do this? This can simply be avoided by completing a quick test on your Trailer Wiring Circuits before setting off on your journey. Here's the wiring diagrams showing the pin out for the plug and socket for the most common circle and rectangle trailer connections in use in Australia.