Re: 2003 WJ Fan Failure
if you hear the relay that is not the relay you have... you cannot hear the one under the headlamp actuate, but if the relay is in the power distribution center it will be a style relay you hear closing. there was a short time on the wj body style while the fuse was in the PDC and iirc it was the later models. unplug the fan, take 2 jumper wires, have one go to the battery ground and get it on one of the pins in the fan connector (doesnt matter either way, typically black is ground but if you hook it up backwards it will just spin backwards). take the next wire to B+ at the battery to the other pin and if the fan comes on then you have another problem, if it doesnt you have a bad fan, replace it and retest.