7 Pin Wiring Colors. Any idea what the color scheme is for the wires? I drew this crude diagram to help explain.
Complete with trailer wiring color code diagrams, this guide walks through each available trailer wiring installation solution, including custom wiring, splice-in wiring and replacement wiring. A colour coded trailer plug wiring guide to help you require your plugs and sockets. The standards and pin-out specification appear to be related and interchangeable, but are not the same and should not be used interchangeably.
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.
Trailer Wiring Diagrams showing you the typical wiring for most single axle trailer and tandem axle trailers.
Having the various pinout diagrams available is vital to troubleshooting and/or repairing truck. Align the colored wires using one of the schemes listed in the above discussion of Ethernet wiring. Which standard should be used in your facility?