Reese 7 Pin Trailer Wiring Diagram. Anyone have a diagram of which pins supply which functions? Trailer plug wiring is standardized across all vehicles, no point trying to find vehicle specific info.
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.
Trailer wiring is very important to towing safety.
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Refer to your trailer service manual and plug installation instructions to avoid wiring problems that may damage your trailer, brake controller or vehicle! Wired as per diagram - no joy. Look at the wiring diagram for your truck and determine the designation given to the ground location for the taillights.