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The relay is located under the right side head light.You will have to remove the battery.Also the head light.They say your suppose to remove the front bumper but Iwas able to replace the relay without taking the bumper off.Follow the wiring back under where the head light sat inside the fender well.They hid it pretty good.Iam going on my third relay and I think the cause may be that Iam not getting a good ground on the relay causing it to over heat and go out..But still doing some research. http://autorepair.about.com/library/faqs/bl581g.htm

I did a failure analysis on the two that went bad on my Jeep and found that the semi-conductor relay had a manufacturing flaw. The unit is basically a power transistor. On the current carrying side of the transistor the manufacturer laser welds approx. 6 wire conductors. I found that 4 out of the 6 were not welded therefore leaving 2 to carry the current for fan operation. After a while the two conductors burn out because of the excess current carrying demands that's imposed upon them which causes a dramatically decreased life span.

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Q: Where can you find the schematics for a 2001 Jeep Grand Cherokee Larado cooling fan so that you can locate the solid state relay for the fan?
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