99 Silverado 7 Pin Trailer Wiring Diagram. This is a basic reference article about trailer and caravan wiring; the plugs and sockets that are commonly in use in Australia, and the pin colour codes that are designed to coordinate proper connections, according to Australian Standards. I thought one of the pins is supposed to be constant power.
I am trying to determine which pins are necessary for backup lights to come on when the vehicle is put into reverse. You must check the trailer manual to see if the wiring is correct, but normally the white wire is called the ground wire, while the brown wire is used for tail lights. Wiring Guide for Trailer Plugs, Adapters & Sockets.
You have brown with white stripe for park.
I wanted to get a wiring pinouts and diagrams thread together without all of the questions.
I drew this crude diagram to help explain. After pins are removed, AND some labeled, I start working into the harness to remove un-needed wires that are now removed from the PCM connectors. Dark green is right turn, yellow is left turn.