Thank You JeepCares for Flat Tow Harness - Page 3 - 2014+ Jeep Cherokee Forums
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post #21 of 62 (permalink) Old 05-24-2017, 11:48 AM
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Thanks Kori, Can I install it myself. I already installed the ez5 tow plates, trailer hitch, brake light wiring and will be installing the SMI duo brake system today with the relay. Might as well install this while everything is apart.
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post #22 of 62 (permalink) Old 05-24-2017, 01:10 PM
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Originally Posted by taylordr61 View Post
.... Can I install it myself.
Here are instructions that were posted for the 2014 & 2015 models. They are probably good for 2016/2017 too. When you purchase the harness from the dealer, maybe they include the install instructions. Anyway, the instructions at the link below show what's involved. Others have installed the harness components on their own.

https://drive.google.com/open?id=0B_...VpCSUJTVk5lTjQ

One modification that is recommended is to put a switch in series with the 10 amp fuse that is part of the harness. That eliminates pulling and inserting the fuse which is a PITA.

We know quite a bit about this harness now. It's helpful to know the harness does not carry current that powers the EPS (Electronic Power Steering) motor. The vehicle has a separate cable that runs from the battery to that motor. The harness is about 1) energizing the system in the engine compartment to allow current to flow over that heavy cable to the EPS motor when the ignition is turned off, and 2) turning off EPS communications to the CAN bus by adding a switch to the interior console; this eliminates CEL and DTCs that would otherwise occur if the EPS were fired up without the ignition being on.

Others have gone further and added relays to automate the switching in both the engine compartment and interior. There are threads on this forum they posted. This 577 post thread covers about everything on the subject, and some of its posts link to other threads on the automation techniques: Severe shaking problem towing behind motorhome.
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2015 White/Black Limited | 3.2-L V6 | Active Drive II | Tech Grp | Lux Grp | Trailer Tow Grp | SafetyTec | Uconect 8.4AN | 9 Speakers | Tonneau Cover | Born 09-06-14 : (( (( (( (( (( (( (( :
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post #23 of 62 (permalink) Old 05-24-2017, 03:06 PM
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This Post is why I came back to Jeep. Thank you JeepCares
Nothing but the runaround with Government Motors (GM) and REAL safety issues concerns with their products.
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2015 S.H.I.E.L.D. Trailhawk "Hawkeye" by Stark Industries
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post #24 of 62 (permalink) Old 05-25-2017, 07:59 AM
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Originally Posted by Bigtrace View Post
So I take it that the procedure now is to put the vehicle into true neutral (transfer case set to nuetral, shifter into park like my JK) then enable the harness by inserting the fuse (or wire it for a switch which I believe you did) without turning anything on inside, no ACC, no Run.. Correct ??

Did you also install your own base plate as well?? I've watched the YouTube videos on that and am pretty handy, but when it comes to automobile "snap" fittings being used for the bumper fascia, I fear the worst. I can run the trailer wiring, etc. and probably even the AirForce One on the vehicle itself, but the cutting of the metal bracket attached to the bumper itself has me a little squeamish too. Is it worth the $$ to get it installed?? Thanks for your help
I do not recall any cutting (other than trimming the plastic around where the tow hooks used to be) when I installed my baseplate. Which baseplate manufacturer are you looking at?

... RP
2015 Trailhawk
CherryRed&Black, V6, Uconn8.4-Navigation
Comfort/Convenience, ColdWeather, TrailerTow pkgs
Ordered 8/6
Status D1: 8/13, F: 8/26, I: 8/27, KZ: 9/2, KZM: 9/3
Arrived at Dealer 9/10, 42 days from order date.
Took Delivery Sept. 12, 2014.
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post #25 of 62 (permalink) Old 05-27-2017, 02:47 PM
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Originally Posted by taylordr61 View Post
Thanks Kori, Can I install it myself. I already installed the ez5 tow plates, trailer hitch, brake light wiring and will be installing the SMI duo brake system today with the relay. Might as well install this while everything is apart.
I installed ours. Saved $550. our dealer quoted $700. I paid less than $150. for the harness. I have the tools for soldering and heat shrink.
You have to cut 1 wire on your kl and solder it to and from the new harness.
Heat shrink is included.

Have you added a charge wire from your motor home? You'll need one.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

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post #26 of 62 (permalink) Old 05-27-2017, 05:26 PM
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@taylordr61 - On the charge wire, a "battery maintainer" as abjbrtd linked to above is a good idea if the 12 volt pin on your motorhome's trailer outlet is not switched. That's because the battery maintainer includes a diode that prevents the KL's battery from draining back into the motorhome's battery. However many motorhome's trailer outlets are switched (turns on and off with the motorhome's ignition switch) and in that case a simple fused wire is all that is needed. This is the fuse holder I used at the KL's battery: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1.

2015 White/Black Limited | 3.2-L V6 | Active Drive II | Tech Grp | Lux Grp | Trailer Tow Grp | SafetyTec | Uconect 8.4AN | 9 Speakers | Tonneau Cover | Born 09-06-14 : (( (( (( (( (( (( (( :
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post #27 of 62 (permalink) Old 05-28-2017, 09:17 PM
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Kori
I have a quick question for you. I recently (Delivered Yesterday) purchased a 2017 Cherokee Latitude for flat towing behind our RV, the Cherokee VIN # is 1C4PCB1HW622602. I was concerned about the problem with the severe shaking some people encountered while towing the 2014-2016 Cherokees, so I called 800-925-JEEP to see if this problem had been corrected in the 2017 models. I was told that sales code XEYP had been installed in my Jeep and that this was the fix for the Flat Tow Wiring Harness. However, my owners manual still states that I should have the harness installed. I'm a tad confused, do I need to have the dealer install the harness or has the problem been corrected with my VIN. I appreciate any assistance.
Thanks
Frank
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post #28 of 62 (permalink) Old 05-29-2017, 12:07 AM
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Kori
I have a quick question for you. I recently (Delivered Yesterday) purchased a 2017 Cherokee Latitude for flat towing behind our RV, the Cherokee VIN # is 1C4PCB1HW622602. I was concerned about the problem with the severe shaking some people encountered while towing the 2014-2016 Cherokees, so I called 800-925-JEEP to see if this problem had been corrected in the 2017 models. I was told that sales code XEYP had been installed in my Jeep and that this was the fix for the Flat Tow Wiring Harness. However, my owners manual still states that I should have the harness installed. I'm a tad confused, do I need to have the dealer install the harness or has the problem been corrected with my VIN. I appreciate any assistance.
Thanks
Frank
FWIW, my 2015 build sheet says I have XEYP Trailer Tow Wiring Harness. That is not the flat tow wiring kit/harness.
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2015 White/Black Limited | 3.2-L V6 | Active Drive II | Tech Grp | Lux Grp | Trailer Tow Grp | SafetyTec | Uconect 8.4AN | 9 Speakers | Tonneau Cover | Born 09-06-14 : (( (( (( (( (( (( (( :
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post #29 of 62 (permalink) Old 05-29-2017, 12:52 AM
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Originally Posted by JeepCares View Post
Hi taylordr61,

The Mopar flat tow kit is not a warrantable part, it is considered an accessory. Your dealership will be able to order it for you--part # 68321424AB, and the dealership can reference Technical Service Bulletin 08-010-17.

Kori
Jeep Social Care Specialist
How can this be considered an "accessory" if the vehicle cannot be towed safely without it?

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post #30 of 62 (permalink) Old 05-29-2017, 12:54 AM
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Originally Posted by FrankJ View Post
Kori
I have a quick question for you. I recently (Delivered Yesterday) purchased a 2017 Cherokee Latitude for flat towing behind our RV, the Cherokee VIN # is 1C4PCB1HW622602. I was concerned about the problem with the severe shaking some people encountered while towing the 2014-2016 Cherokees, so I called 800-925-JEEP to see if this problem had been corrected in the 2017 models. I was told that sales code XEYP had been installed in my Jeep and that this was the fix for the Flat Tow Wiring Harness. However, my owners manual still states that I should have the harness installed. I'm a tad confused, do I need to have the dealer install the harness or has the problem been corrected with my VIN. I appreciate any assistance.
Thanks
Frank
Hey Frank, welcome to the forum

As @Array points out, that code is for the rear hitch wiring, not anything to do with flat towing... It is scary how little Jeep customer assistance knows on this subject. Oh one thing is more scary : how little most dealerships know about this situation, and about flat towing KLs in general. Scary...

BTW, we haven't heard once that any 2017 KL shipped with the harness from the factory. They're not doing it, it is an extra you have to purchase yourself.
When I said it was scary how little Jeep customer assistance knows... just imagine if you had taken their word for it, gone out with the MH with KL in tow and got into... well... a serious situation with injuries... all because someone from customer assistance said you were good to go with no clue whatsoever... A lawyer's dream case I guess...

I'll give @JeepCares a shout here, just to make sure Kori finds your post and confirms.

Good luck...

My avatar is the Elder Predator (goes well with my forum status and overall temper )
2015 North (Canada) - V6 - AD1
Cold, Tow, 8.4A, 9 speakers with sub

Last edited by Mark_; 05-29-2017 at 12:57 AM. Reason: typos of course ;)
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