Radiator fan motor not working

My 2000 Jeep Grand Cherokee 4.L 6 Cyl fan motor is not working i already replaced the fan motor but did not fix the problem, does any one knows where the relay that activates that motor is located?

http://www.automotiveforums.com/vbulletin/showthread.php?t=711524 http://www.automotiveforums.com/vbulletin/showthread.php?t=562425 http://www.automotiveforums.com/vbulletin/showthread.php?t=717291
all of these threads make mention of the relay and one shows where it is if you search around a little you'll find more info it's a common problem on our jeeps