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Discussion Starter #1 (Edited)
7 Way Trailer Harness Installed!!!

Once the Jeeperman bumper was installed I started in on the 7 way trailer harness for my Chaser #15. I went ahead and purchased the harness from the Jeep dealership and although it was expensive(just under $80.00) I think I got my moneys worth. Now that Jeep is using a CAN-BUS system the harness has relays back at the tail light complicating the harness.


First off remove the two inner screws from the driverside tail light. This removes the whole tail light.


Use a pair of wire cutters and snip all the zip ties holding the existing flat 4 way plug. Disconnect the plug at the light and unclip it from the bumper mount.


This zip tie at the bottom was the most difficult to get to.


Here is the removed flat 4 way plug.


Now simple clip the new harness to the tail light and feed the wires down to the frame, across the rear cross member and up the passangerside frame rail. Connect the positive and negative wires at the battery. Feed the blue and red(see below) wires into the cab. I went thru the firewall at the same spot I used for my sPOD install. Zip tie the harness along the way.


I decided to flush mount the plug into the rear bumper. Here is where I made the cut.


I used a 2" whole saw to drill the bumper.


Painted the raw metal and installed the new 7 way connector.


Important -- A note about the factory wire harness. It comes with the supplied blue wire for hooking up the trailer brakes. Unfortunately there is not a wire in the harness for a brake trigger. Jeep has one under the dash for this but it does not provide enough of a load to trigger the Prodigy brake controller that I have. So with this said I had to add a red wire(brake trigger) to the harness. Not difficult but time consuming.


Here is the red wire(brake trigger) connected to the white/yellow wire at the tail light.


And one more wide shot.
 

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I bought an 07 wrangler and i have notice that they did not connect the blue wire they just tied it up under the hood. Where does it go and what does it connect to?
 

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Very nice write up with pics...thanks for sharing. :bounce:
 

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Oh, BTW, looks real clean on the install too...
 

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Looks nice. How was the pucker factor while cutting that nice bumper? I'm still waiting for Red Rock Fab to build my rear bumper so for now I have my 7-pin mounted under the rear crossmember. I haven't decided if I want to mount it like you did on my new bumper or if I want to mount it behind the bumper somewhere.

Your's does look really nice and more functional than crawling up behind the bumper. Nicely done. :beer:
 

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Discussion Starter #6
Check it twice and cut once. It is a piece a cake. Add a little tape to the bumper and use a whole saw with a starter bit. Just check to make sure you have clearance behind the bumper. The 7 way plug is long and there could be bumper reinforcements blocking certain spots that you might want to use. Good luck and drill away!!
 

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Excellent write up...now, I seem to recall the pics were bigger when I first read your post?
 

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What is the part number, I need to add this and my local dealership is less than helpfull.

Ron
 

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Discussion Starter #9
Dustoff '68
I seem to recall the pics were bigger when I first read your post?
Sorry I am using Shutterfly to upload photographs and I have come into a problem with posting photographs to more than 2 sites. For some reason the picture size is being reduced. Any thoughts on how to fix this.

Wanderingtrail
What is the part number
Hello Ron, I am not sure of the part number. With the new can-bus system you will need to run an extra wire back to the rear driver side tail light so that your trailer brake controller has a solid brake source. This is something I found out after installing the stock Jeep harness. Also make sure your part number is for an Unlimited if you have one. There are two different harnesses and I recall people complaining about the 2 door one being a few feet short for the Unlimited. I would try and find my part number but as I recall it was the shorter 2 door kit. I still like the kit because if it had all the wires it is a simple and clean plug and play setup. I just don't know why they did not include the wire for the 12 volt brake supply. My guess is Jeep does not want you towing a trailer with trailer brakes and a 3500 pound tow rating.
 
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