4 Pin Trailer Plug. A colour coded trailer plug wiring guide to help you require your plugs and sockets. Free delivery and returns on eBay Plus items for Plus members.
Free delivery and returns on eBay Plus items for Plus members. Simple How To Video, quickly learn how to rewire that trailer connection. Verify the harness color codes at each tail light.
I had no choice but to install the wiring while my boat was on the trailer The best way to make sure the harness wiring on your vehicle is working properly is to test each pin on the connector plug with a circuit tester, or have.
A colour coded trailer plug wiring guide to help you require your plugs and sockets.
Cut the four-pin plug off of the trailer harness. When you need to reverse get out and flip the adapter over. There should be a common color for both the tail lights.