Join Date: Mar 2007
Location: Lake Havasu City, Arizona
Own a Commander?: Yes
Model year: 2006
Trim Package: Sport
If 4WD - system: QD-II
Current Mileage: HueyPilotVN
That wire is usually used for an aftermarket brake controller. The wire would go thru the grommet in the firewall and attach to an output from the controller (such as a Hayes controller) which sends voltage thru the wire to the trailer connector plug where a wire from the magnet on the brakes gets the signal and applies different amounts of braking force depending on the amount of voltage.
There is not a controller built in as part of the Commander. The aftermarket controller gets its signal either from a pad that mounts over your brake pedal or from a hydraulic tee that measures your brake fluid pressure or from an electronic signal from a pendulum insdie the controller.
You might do a Google search on Hayes brake controllers or other controller for a better explaination with pictures.
Hope this helps
2007 Jeep Green Limited 4.7 Flex Fuel, RR 2.5" 4 inch Superlift coils on rear, 1.5" Spacers, Bridgestone 265/70/17, K&N CAI, Flowmaster, Diamond Plate Locking Trunk, Blue Ox Baseplate w/D-rings, "Get Lost 4X4" Front Bumper, T-Max 9000 winch, "Get Lost rear tire carrier, 30 gal second gas tank.
Second 2007 Jeep Green Limited Leather HEMI QDII VES Uconnect Flowmaster OEM Skids Tow Package
Maybe the two will meet up soon edit: they did , I now have 2,now gave 1 away...and got it back again.
Last edited by HueyPilotVN; 05-08-2009 at 07:27 PM.