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Where Does the Blue Brake Controller Wire Connect to on a 6-Way Round Trailer Connector  

Question:

i read that the blue wire needs to go from the controller to the trailer. so what do i hook the blue wire to??

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Expert Reply:

The blue wire is for brake output power to the trailer brakes. One end connects to the brake controller and the other end goes to the pin in the trailer connector on the vehicle side that is for the trailer brakes. The Adapter 6 Pole to 7 Pole Trailer Wiring Adapter, # 47435, would be if your towing vehicle has a 6-Way round pin trailer connector and the trailer has a 7-Way blade style trailer connector.

In this case, on the truck, the brake pin would be in the 2 oclock position, if looking at the back of the plug. I have included a link to a wiring FAQ that shows the various types of connectors and how they are wired on a trailer and on a tow vehicle.

expert reply by:
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Michael H

Donald S.

6/11/2020

I have a 2011 pathfinder that I need to wire the brake controller into. I dont have a harness to go connect to the controller so I can plug it directly into the pathfinder. So what I need to do is tap into the wires on the pathfinder harness from the controller (I know this is not ideal however time is an issue). The wires coming off of the controller are Blue, White, Red and Black. The question is what wires do they match up to on the pathfinder

Etrailer Expert

Jacob H.

6/15/2020

If you have a factory tow package on your vehicle, you can use part # 3050-P to plug directly in your connection under your dash. If the connection to your brake controller is not the same as what is on this harness, I would recommend cutting on the adapter and not on your factory wiring.

Donald S.

6/16/2020

@JacobH Next question. I bought a 2017 Forest River Flagstaff 625d classic popup. I would like to purchase a stabilizer/weight distribution system. The only spot on the tongue of the trailer that I can connect the back part of the bars is 38-40 inches away from the ball. Do you know what model of system I would need?
Etrailer Expert

Chris R.

6/19/2020

@DonaldS That's too far of a reach for any of the WD systems we have available. Your best option will be to use a chain-type system with Chain Hangers # RP58305 that can be bolted to the side of the A-Frame (which will avoid any interference with that propane tank). For a specific setup I recommend the Reese Strait-Line # RP66082.

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