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  #649  
Old 02-23-2014, 08:10 PM
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Re: The Towing thread

Hi All

I'm trying to sort out my towbar wiring for my MY14 JGK Limited. When I tested the plug I discovered that the black and blue wires are not connected. I know that the blue wire is for the brake controller that I am about to install. My issue is the black wire. I am towing a horse float that has a breakaway system that requires a 12V power supply and the trailer has this wired to the black wiring in the trailer plug.

My question is where is the best place to source the 12V power in the JGK for the wiring harness. Does anyone have the instructions booklet supplied with the MY14 GRAND CHEROKEE, KIT PART No: AUS2104WKTBWL? And if so does the booklet give instructions on where to connect the wire? I know that my last resort is to hard wire directly from the battery, but that means I have to disconnect the plug every time I turn off the car.

Steve or Barboots has offered to send photo as he has everything open at the moment on his JGK.

Any help would be greatly appreciated.
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  #650  
Old 02-23-2014, 08:21 PM
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What's the breakaway system's input fuse rating? ie: what could it conceivably draw if the battery is depleted? Is it possible that a relay switched feed "direct" from the battery is more appropriate?

Just trying to make sure that I give you the best advice.

The quick answer is to tap into the boot accessory power socket feed, but I have reservations that this is adequate. It could, however, be used to switch off a battery feed when the car is shut down. This would eliminate your disconnect concerns.

Cheers,
Steve
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  #651  
Old 02-23-2014, 08:23 PM
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Also, technically the black wire / pin 2 is for reverse lights. Have you considered an Anderson socket for your accessory or ignition feed? I'd suggest that this is best practice.

Cheers,
Steve
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  #652  
Old 02-24-2014, 02:47 AM
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Re: The Towing thread

Quote:
Originally Posted by Treebeard View Post
Hi All

I'm trying to sort out my towbar wiring for my MY14 JGK Limited. When I tested the plug I discovered that the black and blue wires are not connected. I know that the blue wire is for the brake controller that I am about to install. My issue is the black wire. I am towing a horse float that has a breakaway system that requires a 12V power supply and the trailer has this wired to the black wiring in the trailer plug.

My question is where is the best place to source the 12V power in the JGK for the wiring harness. Does anyone have the instructions booklet supplied with the MY14 GRAND CHEROKEE, KIT PART No: AUS2104WKTBWL? And if so does the booklet give instructions on where to connect the wire? I know that my last resort is to hard wire directly from the battery, but that means I have to disconnect the plug every time I turn off the car.

Steve or Barboots has offered to send photo as he has everything open at the moment on his JGK.

Any help would be greatly appreciated.
Thanks
I thought breakaways have to have their own independent battery supply. Perhaps the black lead is simply a supply to keep the batteries charged? In that case, as others have said, connect it to your 12V trailer supply (Anderson plug). I assume it has protection circuitry. No need to take it through the trailer plug. In fact there is no 12V supply wire in a 7-pin plug.
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  #653  
Old 02-24-2014, 05:36 AM
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I apologise ion advance if I have jumped in here. new to forums I previously owned a Santa Fe with a dual mass flywheel which was overheated and damaged while reversing my small boat uphill on a slope of about 10 degrees. Can anyone tell me if I risk doing the same damage using the low range on my 2014 jeep grand cherokee reversing a caravan of 2 tonne up the same slope with the ZF gearbox. Is there anyone out there that regularly reverses heavy loads uphil
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  #654  
Old 02-24-2014, 06:29 AM
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Re: The Towing thread

Hi DFPM, a dual mass flywheel is for manual cars only, so u can't hurt what u don't have. I use low range to reverse my van up the driveway, but keep it straight to avoid axle wind up which could hurt the transfer case gears. regards Russell
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  #655  
Old 02-24-2014, 06:42 AM
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Thanks for the reply the sante fe was also an auto so I assume I could have this issue with the jeep. Thanks for the advice on the wind up I will keep the in mind.
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  #656  
Old 02-24-2014, 06:18 PM
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Quote:
Originally Posted by boofhead View Post
Hi DFPM, a dual mass flywheel is for manual cars only, so u can't hurt what u don't have. I use low range to reverse my van up the driveway, but keep it straight to avoid axle wind up which could hurt the transfer case gears. regards Russell
I doubt very much we would or should suffer transfer case wind up for the very short distance we are reversing in low range
But just in case all you need to do to release any windup is allow one wheel to spin, by placing one wheel on loose dirt grass etc.
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  #657  
Old 03-01-2014, 05:08 AM
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Re: The Towing thread

For those that are interested, this is my Treg hitch. It is fitted on the standard Mopar tongue. The tongue is reversed to get the correct height for the Kimberley Kamper. The dealer actually sold me a tongue with a deeper drop but the Mopar tongue works better at Aero height with Quadra-lift.

I painted the Treg black and stuck on a piece of red reflective tape. The Treg is retained with a bolt and nut just like a ball hitch. I ground off the bolt extension then encased the nut in Araldite using a toilet roll tube as a former just to make it a little harder for thieves. Welding would have been another option. The tongue is locked into the receiver with a Talon 4WD lock. What makes it a 4WD lock is that it has a plastic bar stool cap on the end to keep mud out .
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  #658  
Old 03-01-2014, 02:31 PM
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Re: The Towing thread

You must have skinny fingers to get a shackle past that barstool cap Bob.
The designers have made the bumper cutout very neat on these things but not so good for practical.
I use a Treg with ours as well……but the yoke is bolted and welded to the top of a Hayman Reese Weight distribution head.
A new hole was drilled in the shank to move the head in towards the bumper, pretty much the same distance as the Mopar one achieves.
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  #659  
Old 03-01-2014, 06:41 PM
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I just had the Mopar tow hitch fitted by my dealer. Having a Summit I had to wait for a SRT style unit to come in. The first thing I noticed when I got home was the rating on the goose neck (see photo).
Thinking they'd put the wrong hitch on I emailed Mopar support and asked them if it was the correct part number for my car. The reply was surprisingly prompt.

"Please return to the dealer that installed the tow bar and have them fit the correct tow rating label.

The Summit and the SRT share the same tow bar.

The label you have is for the SRT."

I forwarded the email to my dealer who called me to say that they'd have to wait for the correct decals to come from Jeep. I thought Mopar would have provided both sets with the unit so the dealer could apply whichever was applicable.

The other thing I'm concerned about with this configuration is the safety chain attachment points (see photo). Unlike other installations I've seen they are located at the top of the receiver tube. There is very little clearance to get a shackle in, especially near the lighting connector.
Does anyone have any ideas about get around this? I thought maybe even alternate attach points.

The whole point of this setup appears to be that you can hide the hitch if you're not towing.
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  #660  
Old 03-01-2014, 07:53 PM
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Re: The Towing thread

Maybe run two D-shackles, one that is there permanently and only have to fiddle with once to fit, and then another that will provide easier use. Or is using two d-shackles a bad thing?
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