2015 platinum - Nissan Pathfinder Forum
 
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post #1 of 9 (permalink) Old 10-24-2016, 10:12 AM Thread Starter
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2015 platinum

came with a white plastic connector with wires, sitting in the glove box. I know it's something towing related. What is this and what does it connect to on my hypothetical trailer?

The platinum has the hitch and the covered up 7 wire plug already installed from the factory.
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post #2 of 9 (permalink) Old 10-24-2016, 10:24 AM
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that should be for the electric brake controller. the plastic connector plugs in somewhere under the dash (owners manual) and the wires connect to whichever brand electric brake controller you buy per the instruction manual. the hardest part is finding a good spot to mount the controller so out of the way of your knees and accessible and be able to adjust it for level.

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post #3 of 9 (permalink) Old 10-24-2016, 10:39 AM
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Just to further the excellent explanation above, a brake controller is necessary if the hypothetical trailer you tow has electric brakes and you want to be able to dictate how the trailer responds when you apply your brakes. If you tow a small utility trailer for dump runs, say, the brake controller would not be necessary.

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post #4 of 9 (permalink) Old 10-24-2016, 10:44 AM Thread Starter
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Ah thank you. And then the trailer itself just plugs in outside to my covered up big plug so there's wiring from "under the dash where my controller would go" to the outside plug...

A UHaul 5x8 trailer doesn't mention brakes, but the 6x12 trailer has a surge brake. So for the small trailer I would not need to add a brake controller, and for the larger one I would?
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post #5 of 9 (permalink) Old 10-24-2016, 11:41 AM
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Originally Posted by gillmj24 View Post
Ah thank you. And then the trailer itself just plugs in outside to my covered up big plug so there's wiring from "under the dash where my controller would go" to the outside plug...

A UHaul 5x8 trailer doesn't mention brakes, but the 6x12 trailer has a surge brake. So for the small trailer I would not need to add a brake controller, and for the larger one I would?
Correct on both counts.

If you're renting the 6x12 UHaul for a short trip, I wouldn't worry about the brake controller, but a longer haul, you might consider getting one.

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post #6 of 9 (permalink) Old 10-24-2016, 12:20 PM
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Surge brakes and electrical brakes are not the same thing: https://www.etrailer.com/question-87862.html
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post #7 of 9 (permalink) Old 10-24-2016, 05:02 PM
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Quote:
Originally Posted by gillmj24 View Post
came with a white plastic connector with wires, sitting in the glove box. I know it's something towing related. What is this and what does it connect to on my hypothetical trailer?

The platinum has the hitch and the covered up 7 wire plug already installed from the factory.
I'm pretty sure what you found is not for the brake controller, that part is used for accessories such as illuminated kick plates.
Mine brought one hidden in the trunk.

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post #8 of 9 (permalink) Old 10-24-2016, 09:14 PM Thread Starter
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No the kick plates need the accessory harness, 999Q9 AY000 which has about a dozen wires.

I've made other posts about doing the kickplates, this part I'm asking about I remember had 4 wires
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post #9 of 9 (permalink) Old 10-25-2016, 11:27 AM
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Surge brakes, unless my terminology is off, there is a master cylinder with brake fluid in the hitch ball area of the trailer. as the vehicle slows, the weight of the trailer going forward pushes on a piston just like a person pushing on a brake pedal without power brakes. The harder the towing vehicle stops, the more pressure put on the trailer brakes. No elec brake controller used. Manual system, works good for medium weight trailers and very low maintenance. My vehicle tow dolly has that system on it.

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