SOURCE: 2002 Jeep Grande Cherokee overhead console has no display
try unhooking the battery to see if resetting the body computer helps. low batteries and poor connections at the battery can cause weird problems like this
SOURCE: my 1998 jeep grand cherokee
It is the relay switch but there's a workaround and you don't have to spend 800 bucks plus. You can take down part of the headliner and replace the relay switch or, if you want to avoid spending the money, you can simply disable the sunroof - after all - who uses it? You can a.) pull the headliner driver side to get to the rear relay/motor and reverse polarity (the connector) as long as you have the front top console plug jumpered to open/close the sunroof or b.) get to the rear relay without totally dissaembling your car and replace the relay in about 2 hours and after spending about $180 for the part.
SOURCE: windows and lock wont operate on a 2004 Jeep Grand Cherokee
I just had the same with mine, pull the rubber boot back on the drivers side front door and look for a severed wire, mine was black...simply spliced the wires back together and problem solved!
Definitely, you'll have to take a look to see if any obstruction is visible. To check the fuses first you'll need to find them. The fuse block cover should illustrate what each fuse is for. You can visibly check the fuses, with a flashlight. Just take a look at the sunroof fuse and check that its not burned. That the metal inside goes from one side to the other and its not burned or broken. You can use a test light or a multimeter, a test-light will do. I usually check them visibly, its obvious when you have a blown fuse just by looking at it. Its better just to pull out the suspected fuse to check it.
SOURCE: How to remove Overhead Console
straight from the Jeep service manual
1.) Disconnect negative battery cable.
2.) Remove screws attaching front of overhead console to front of bracket.
3.) Pull console downward from area near courtesy lights. 4.) Disconnect electrical connectors and remove console from vehicle.
To install, reverse removal procedure.
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