Checked fuses and they are good. no prior problem, just stopped working
SOURCE: 2000 Jeep Grand Cherokee Laredo Power Windows
i am a chrysler jeep tech. at a dealership i have seen alot of this in these jeeps 90% of the time the problem is between the driver door and the body open the door there is a rubber tube with wires inside, diconnect this ruber tube from the door pull it back and i would almost promise you will find some broken wires just strip them connect them buy colors solder them together and tape them up and your windows and or door locks will work like new
SOURCE: 2000 jeep cherokee sport fuse diagram
unfortinately the fuse box is under the hood and there is no panel inside the 2000 cherokee or diagram, i had to buy an online manual to find out what fuse went where for my jeep but its not with me. You can just pull the fuses out one at a time and look at them - I know its a pain. It might be your window controll switch - mine is bad as well. It is a common problem for these cherokees especially over 100k, they wear out - I initally thought it was my fuse as well because the lights in the window switch didn't light up anymore - but it is my switch.
SOURCE: 2000 jeep cherokee sport fuse diagram
Likely you are looking for a 30 amp circuit breaker...(Looks like a small rectangular metal fuse) But...if the power door locks work, i don't think that it's bad (serves locks & windows) My diagrams show a bunch of diodes and resistors inside the master (drivers) door switch, but I've had a few apart and never saw any. (embedded?) Personally I don't see anything that shows me reliability built into the switch...It's a really "iffy" design (one in my niece's Jeep only works when the sun shines on the drivers door) There is also a control module associated with the windows but I've never needed to replace one and the manuals never tell you where they are!
Check power at the switch and check harness where it goes through the rubber boot between the door and body. at least 80% of problems I've seen are either the switch or that wiring. Wires can be spliced and you can get a decent used switch at most scrap yards.
Good luck...glad they aren't stuck down!!!
SOURCE: Jeep Headlights not working. High beam works
had the same problem on my 92....check under the hood on the drivers side,towards the front,there is a "junction box" with all of the lighting wires connecting from the switches to the lights.My wires were all corroded inside,so I cleaned the ends and bought a new box from the local electronic supply store.The problem has not come back.
Cheers
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