Quote:
Originally Posted by DenverTransplant
You should have a 7 pin round plug at the back of the coach - but that depends upon what the manufacturer gave you. Whether it works or not with your dolly depends upon what the dolly manufacturer gave you. If you want to power your toad lights, or use magnetic ones on the toad, you may have to do some wiring yourself or buy a splitter cable.
I have an American Car Dolly that came with its own brake controller. There was a 7 pin plug on the dolly that plugged into the controller an a 4-pin cable that plugged into the tow vehicle. I had an adaptor and a Y cable to split off the wiring for the lights I put on the back of our Mini. I can't remember all of the details as I've since gotten rid of the on-dolly controller.
I didn't really like the ACD controller (too sensitive and I had to get out of the coach to disable it when the Mini wasn't on the dolly.) I ended up taking off the brake controller and using my Tekonsha. In order to do that I put a waterproof terminal box on the dolly tongue (you can buy them with 7 terminals) and a new 7 pin cable. I then tapped a 4 pin cable to the terminals for the lights. Not a terribly hard job, but you do need to keep your wire colors straight. In our case, the cable that ACD used didn't use standard wire colors so I had to trace which wire went to which pin in their cable. There are lots of places on the internet to find out what the pin designations are. One sample is attached.
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Thx Denver my tow dolly has a 7 pin round plug and my coach has the same. The cover that keeps dirt out when not in use on coach has the pin descriptions on it. My dolly has lights but I like the toad to have lights too. Should be an easy fix by tapping into the dolly lighting wires and our toad wires. Then just terminate each one with a 4 pin plug one male one female and lights should work. That's my hope lol
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