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Old 11-05-2010, 09:49 AM
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Electric Tow Brake Controller

Has anyone installed a Tow Brake Controller in their 2011 Grand Cherokee? If so, can you tell me where under the dash panel did you locate the brake controller wire? Does Jeep have the electric trailer brake wiring harness pre-installed or did you have to install that too?
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Old 11-05-2010, 12:31 PM
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Re: Electric Tow Brake Controller

April, check out the below thread. What JGC and trailer/brakes do you have?

If you have the V8 with Tow Package IV, which includes 7 pin and 4 pin plugs, you'll only need to add a brake controller.

Per a link in the below thread, check out etrailer.com's self help section if you are DIY.

Towing with Overland V8.
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Old 11-07-2010, 06:30 PM
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Re: Electric Tow Brake Controller

Thanks for the reply, I will check out etrailer. Overland with Tow Package IV. Luxe Ryder trailer with air suspension, electric brakes.
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Old 11-07-2010, 08:50 PM
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Re: Electric Tow Brake Controller

^Then you should have the 7 pin connector which has a brake line in it from the trailer, it plugs right into the JGC 7 pin socket on the rear bumper. You'll only need the brake controller which installs above the brake and gas pedals.

Those luxe trailers are sweet. You hauling bikes?
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Old 11-07-2010, 09:29 PM
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Re: Electric Tow Brake Controller

I put mine under the light switch panel and fuel door release
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Old 11-07-2010, 09:39 PM
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Re: Electric Tow Brake Controller

One more time. Does Jeep include the wiring harness that goes from the brake controller to the vehicles wiring?....OR, does one need to purchase this harness? (I DO NOT mean the 4 or 7 pole plug or the wiring at the back of the vehicle.)
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Old 11-07-2010, 11:30 PM
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Re: Electric Tow Brake Controller

^foggy, most controllers come with their own wiring harness that ties into the vehicle.

per your note in the other thread, if you have an old "cheapo" controller, maybe it is a good time to upgrade as any trailer with brakes usually is over 4,500 lbs loaded.
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Old 11-08-2010, 10:15 AM
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Re: Electric Tow Brake Controller

Quote:
Originally Posted by moosehead View Post
^foggy, most controllers come with their own wiring harness that ties into the vehicle.

per your note in the other thread, if you have an old "cheapo" controller, maybe it is a good time to upgrade as any trailer with brakes usually is over 4,500 lbs loaded.

Thanks. Yep....I have one trailer and a small tractor that will push the 7200 limit on towing capacity. But the old cheapo controller does a fine job on the brakes...and the controller box is small. I may take my harness along from my current GM vehicle.....if I can figure out where the wires attach on the jeep.
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Old 11-08-2010, 02:10 PM
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Re: Electric Tow Brake Controller

Moosehead - I think what foggy is asking (my question too) is this: Is Part No 82210512AB (Electric Trailer Brake Wiring Harness) pre-installed by the factory when you get the Tow Package IV factory installed. If so, then I only need to look for the 4 pig-tail wires that should be taped up somewhere underneath the dash - pull those down and connect them to my electric brake controller and then when I plug my trailer in to the 7-pin connector the circuit will be complete and I will have voltage to the trailer brakes. Towing Propsort, VRSCSE and KTMs.

To wjs81866 - where did you find the brake controller wire? under the dash? behing the fuse box? left side hush panel? Was it taped off or clearly labeled?
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Old 11-12-2010, 06:19 PM
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Re: Electric Tow Brake Controller

I was speaking to mike at e trailer today he said currently he knows of no such harness sold yet ,there is a 4 pin connector gray in color fasten to the top of the main harness (which is a large square white block) with a bolt in it to secure both end of the harness. on the top of that is were i see the four pin plug which i belive to be the plug why, because it the same exact one in a 2010 dodge pick up. i am doing some further investagation,,called westurybury jeep parts dept they have no listed part number to date..........per mike howell@e -trailer tekonsha has not yet confirmed a plug n play harness....If any knows for sure please post o yea mike said there should be wires under dash taped together for hard wiring ,does anyone know for sure? thanks pat (the harness is just above the e-brake)
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Old 11-15-2010, 01:54 PM
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Re: Electric Tow Brake Controller

pattyboy - thanks for the post. Please let us all know if you find out any additional information. I've been looking for the taped off wires for days but no luck - if they are there (which I hope they are) its a challenge to find them especially before my flashlight goes through yet another set of batteries in the process. Does anyone know where the wires are located? I had them in my 04' Lexus GX470 as well as '08 Acura MDX. It would be a shame if Jeep does not include the basic wiring needed for the brake controller install.
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Old 11-15-2010, 02:27 PM
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Re: Electric Tow Brake Controller

I've asked about these wires/harnesses in another thread but didn’t get an answer. Years ago 2005 (I think) Dodge on the Durango started including the harness and input under the dash to plug the brake controller in. Very disappointing that years later Jeep still may not be providing this simple input. Electric Brakes are law with trailers over a certain weight (1-3K) in most if not all states.


I have a ’05 WK and plan to get a ’12 or ’13 WK2. Sure hope it’s not that difficult to add a brake controller to an Overland with towing package. I had to rely on Milous and others for the wire colors and location under the dash for my WK. For an SUV that can tow a lot of weight for its size you would think this would be simple. Some trucks have brake controllers built in. Sure hope someone can shed some light of this.
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