How do I hook a 3 pin connector to a 4 pin?
First post here! I recently purchased a small camper and the runnig lihgts(I assume thats what it is) have a 3 pin connecter, can I just plug it into the 4 pin splitter I have or do I need an adaptor?...
Forum Discussion
Yup, that 3-pin is not standard for trailering. Odds are you would've blown a fuse or two had you tried to plug that into a 4-pin trailer connector.
Get your 12V jumper box, and a couple of nails to use as probe pins, and figure out which wire does what. As stated above you probably have running lights, 12V "house" power, and ground.
What you can then do is wire up a custom adapter using a 7-pin Pollack style connector, with a 4-pin for the trailer and a 3-pin for the camper. The 3-pin can be made from a 4-pin by hacksawing off the extra pin.
You will probably need to install the "Stud #1" fuse in the fuse panel under the hood of your truck, in order to get 12V power to the trailer plug.
Get your 12V jumper box, and a couple of nails to use as probe pins, and figure out which wire does what. As stated above you probably have running lights, 12V "house" power, and ground.
What you can then do is wire up a custom adapter using a 7-pin Pollack style connector, with a 4-pin for the trailer and a 3-pin for the camper. The 3-pin can be made from a 4-pin by hacksawing off the extra pin.
You will probably need to install the "Stud #1" fuse in the fuse panel under the hood of your truck, in order to get 12V power to the trailer plug.
