7 pin harness for 2011 tundra

I have a 2011 Trd crewmax. Truck has old 4-pin flat connector for trailer lights. My trailer has a 7 pin with electric winch wired to the trailer light plug. I have found some adapters that plug into 4 pin but have wires hanging off to be wired I'm assuming for things like that powered winch. I want to install a plug on back of truck with 7pin round and 4 pin connector that I can power that winch with. Suggestions?

 

My friends dad had brand new dodge powers the winch fine. My friends older f150. Lights work no power to winch. My wifes gmc acadia....lights work on trailer no power to winch....am I missing something?

 

First things, first. I’m guessing that the winch draws a significant amount of current. That said, running the winch off the light circuit is a sub-optimal solution.

You should consider wiring the winch directly to the trailer battery, if it has one. Make sure you use a thick enough gauge wire for both leads to support the maximum current draw of the winch.

If no battery on board the trailer, then wire the winch to the Aux +12V charging circuit of the 7 way connector in the trailer. There are plenty of diagrams online showing the 7 way plug layout. If your trailer is fairly modern, it should be using standardized wiring color.

In either case, you will need to install a properly wired 7 way connector, not one running off a 4 pin adapter. The website etrailer.com has a lot of tips on wiring. I’m guessing it’s not going to be simple.

Greg

 

E trailer had a few options that supposedly plug directly into wiring harness. Just didnt know if they would power the winch. No battery on trailer. Small winch for 2500 lbs. Boat trailer.