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Old 07-15-2013, 11:42 PM   #1
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Towing electrical help!!!!

Hey, just picked up a Reese class 3 receiver and a curt T wiring connector #55124, the problem is I don't understand what the 4 pin connector hooks up too to allow me to operate trailer lights.. Or of there's something missing. I'm aware of towing and trailer hookup as I tow everyday for work. But extremely unfamiliar with wiring set up, could anybody give me a heads up on what I may be missing..?

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Old 07-15-2013, 11:51 PM   #2
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I just looked over the instruciton sheet, seems pretty clear. Remove the driver side tail light, then carefully disconnect the tail lite wiring harness, the connector kit then plugs into either side of that disconnected wiring harness. What's missing is telling you how to feed the 4 pin wiring connector down and out to the hitch.

Here is a video from etrailer that should help you out.
Tow Ready Custom Fit Vehicle Wiring for Jeep Wrangler 2011 - 118416

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Old 07-16-2013, 09:21 AM   #3
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I understand the hookup procedure, I just don't get whether or not the 4 pin hooks up to one of the socket plugs directly to the trailer.. Or if I need a controller to operate the lights?
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Old 07-16-2013, 10:38 AM   #4
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Your trailer will have either a 4-pin, 5-pin, or a 7-pin plug. Do you know which you have on your trailer? The 4-pin is the standard, it just covers running/brake lights. The 5-pin is more commonly used by boats as the additional pin is for the reverse lights that locks a hydraulic brake while backing. A 7-pin is used if you have a brake controller installed. They make adapters for your vehicle to step down from 7-pin to 4 or 5.

Most RVs and larger trailers will come with electric trailer brakes and and you should then install a brake controller and the additional wiring harness for that controller. The wiring harness you have is not for electric brakes.

Hope that helps.
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Old 07-16-2013, 10:53 PM   #5
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Thank you very much, that covers all my questions. I just have never seen a 4 pin before. But that's perfect thank you!
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