Electric Trailer Brake Controller Harness
Availability: In Stock
*Does not include orders shipped to AK, HI, & PR
*Not valid on skid plates, rock rails, bumpers, body kits, some cargo liners, soft tops and certain oversize items.
|2005-2010||Grand Cherokee WK|
|2011-2020||Grand Cherokee WK2|
67% Recommend this product (2 of 3 responses)
Plug backwards - CAUTION
July 20, 2016
Definitely made install much easier than trying to source required inputs manually. The wiring between the two blue plugs was backwards (positive and negative power swapped, brake sense and trailer output swapped). This was installed on a Grand Cherokee without a preexisting harness, therefore both vehicle side wiring hardness and brake controller side harness were installed. This may be different if you're installing just the brake controller and have the factory installed vehicle side harness. I would recommend swapping the connector pins either on the vehicle side wiring harness or on the brake controller harness. This is easily accomplished with a micro-sized flathead screwdriver. In my case this involved swapping pins 1 and 4, and swapping pins 2 and 3. I would not recommend re-purposing wires since each pin has a specific wire gauge size based on application. From memory, I believe the power wires are the same gauge, but brake sense and trailer output are different gauges.
ConsWiring harness and controller harness pins reversed (1 and 4 swapped, 2 and 3 swapped)
Plug wired backwards
August 23, 2015
The universal plug this harness comes with was wired backwards. I blew a couple fuses before I figured out the problem. Seems like an oversight by the manufacturer.
ProsWas easy to install behind the dash.
ConsIncorrectly wired plug was super annoying and caused several fuses to blow causing me time and money.
By James F.
Should be a factory item
July 30, 2013
This is what you need if you are adding a brake controller to your Jeep. It's by far easier to plug this in then it is to run wires from your battery and add a breaker. Installation was easy and very straight forward, however keep in mind that the diagram of the brake switch wire is deceiving and some models may have a different color wire installed on the cold side brake switch. Note: You may have to rearrange the terminals in the pigtail connector that goes to your controller unit. Mine was completely opposite. Just pull the white tab out slightly on the side of the clip and use a small screwdriver to push the retention tab in holding the individual terminal in the clip and pull it out of the back of the connector. Then reinsert in the right place. I'm glad that Just for Jeeps sells this part.
ProsExcellent materials and proper factory clips. Saves on having to add another breaker and run additional wires through your firewall.
ConsWires may need to be rearrange to fit your brake controller but given the wide range of vehicles this part fits, it's not really a Con.