This utilux trailer wiring diagram model is far more acceptable for sophisticated trailers and rvs. 4 stop red.

Trailer Connectors In Australia Wikipedia
Utilux trailer plug wiring diagram. The four wires control the turn signals brake lights and taillights or running lights. If your vehicle is not equipped with a working trailer wiring harness there are a number of different solutions to provide the perfect fit for your specific vehicle. 4 way trailer connectors are typically used on small trailers such as boat snowmobile utility and other trailers that that do not use brakes. Plug size is similar to an australian 10c coin. Includes guides for 7 pin 6pin 5 pin 12 pin 13 pin pin and heavy duty round plugs and sockets. Australian trailer plug socket wiring diagrams.
As the name implies they use four wires to carry out the vital lighting functions. Socket and plug are keyed. A colour coded trailer plug wiring guide to help you require your plugs and sockets. There is a noticeably larger gap between 1 and 6 on this plug though some trailer places rotate this connector that the yellow is at the top. Heres the diagram for 7 pin connector. 4 way trailer connectors are.
5 electric brakes blue. 1 tail clearance brown 2 left hand turn yellow. They also provide a wire for a ground connection. It can transfer power better compared to the connector is recommended for higher level electric in the car. 6 pin plug. Complete with a color coded trailer wiring diagram for each plug type this guide walks through various trailer wiring installation solution including custom wiring splice in wiring and replacement wiring.
Small 7 pin round plug socket. White pin for the floor. 3 right hand turn green. Small 7 pin round qld identifying. All diagrams are as viewed from the cable side see example above. 6 earth white.
Small 6 pin round plug socket.