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  #1  
Old November 21st, 2016, 20:32
IndianaJohn IndianaJohn is offline
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Trailer package?

My thanks for the help with my rear defrost problem! Now I need some info on the factory tow package.
My 98 Sport has the Mopar receiver hitch installed, however it does not have the trailer light socket. And it does not appear to have been removed by a PO as far as I can tell, as I don't see any loose wiring hanging down. However, a PO may have gotten the hitch from a salvage yard and installed it. So I'm wondering if it could have came from the factory with the hitch installed but no light wiring? I doubt it, but? Is there any sure way to tell if it came with the factory tow package?
Thanks!


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  #2  
Old November 21st, 2016, 21:13
go1lum go1lum is offline
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Re: Trailer package?

It could beb there still. Check behind the rear quarter panel plastic behind the spare. I've seen them tucked back there from the factory. That is where the factory harness plugs in also.
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  #3  
Old November 22nd, 2016, 07:47
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Tim_MN Tim_MN is offline
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Re: Trailer package?

As suggested, just check behind spare tire and plastic trim. If you install trailer wiring, be sure to get the plug-n-play type adapter and not a universal fit.
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Old November 22nd, 2016, 13:22
IndianaJohn IndianaJohn is offline
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Trailer package?

And I just had that opened up a couple of days ago while I was sorting out my rear defrost problem..... wish I'd known about it then. Oh well, guess I'll have to open it up again when I get a chance. Thanks!


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  #5  
Old November 23rd, 2016, 11:59
IndianaJohn IndianaJohn is offline
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Trailer package?

Well, I dodged the raindrops this afternoon to open up that left rear corner again. The only harnesses I saw plugging into the main harness were the ones going to the left rear taillight and up to the hatch. I didn't even see any place for a trailer harness to plug into. The only empty connector I found was a white connector with a single blue wire coming out of the main harness. Don't know what that was for.


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  #6  
Old November 23rd, 2016, 14:14
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Re: Trailer package?

Plug and Play trailer wiring is usually a T adapter. A blue wire is usually for hooking up trailer brakes.
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  #7  
Old November 23rd, 2016, 19:31
IndianaJohn IndianaJohn is offline
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Trailer package?

I guess I should have taken my test light to that blue wire while I had that opened up. Didn't think about it at the time. So the stock trailer wiring tees into the main harness back there too? So if I find another Jeep in a salvage yard with the trailer wiring, I can just plug it into mine?


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  #8  
Old November 24th, 2016, 06:24
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Tim_MN Tim_MN is offline
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Re: Trailer package?

If the donor is a 97-01, yes it will fit any other 97-01.

Google XJ Cherokee trailer wiring adapter and see what it is you are looking for.
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  #9  
Old November 24th, 2016, 08:23
RCP Phx RCP Phx is online now
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Re: Trailer package?

The blue wire isn't hooked up to anything, it's usually curled up under the driver front kick awaiting a brake controller!
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  #10  
Old November 24th, 2016, 08:43
WB9YZU WB9YZU is offline
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Re: Trailer package?

To add:
IIRC, the 5K lb Factory Trailer setup had the Factory Hitch , and an lighting Isolator/adapter assembly behind the spare tire. Can't miss it, it's huge and has relays on it to control the trailer's turn signals.
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  #11  
Old November 24th, 2016, 23:34
IndianaJohn IndianaJohn is offline
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Trailer package?

Well, looks like my Jeep must have a salvage yard donor on it then. I know it's a factory hitch, as it has the "MOPAR" sticker on it and the bracket for the trailer socket just like the factory hitch on my 99 Ram. Oh well, guess I'll have to scavenge the wiring somewhere then. Don't really need a brake controller with my little trailer, but maybe I can find another use for that blue wire...


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  #12  
Old February 9th, 2019, 06:52
pats2001 pats2001 is offline
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Re: Trailer package?

I have a 2001 without the hitch (trailer tow package). Can I get a factory wire harness and plug it in or is the harness different?
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  #13  
Old February 9th, 2019, 07:00
RCP Phx RCP Phx is online now
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Re: Trailer package?

The wiring harness is the same. You have to buy a converter/adapter for the trailer wiring.
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  #14  
Old February 9th, 2019, 07:15
pats2001 pats2001 is offline
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Re: Trailer package?

So its not just get the factory harness and plug and play? I've just had bad luck with aftermarket trailer wiring and wanted to stay factory if possible.
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  #15  
Old February 9th, 2019, 08:04
RCP Phx RCP Phx is online now
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Re: Trailer package?

No, you "HAVE" to get the converter.
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