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power window problems

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  #1  
Old 10-22-2010, 06:31 PM
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Default power window problems

1999 xj8 driver window and sunroof quit working. we did some detective work and decided the window module in drivers door was bad,we unplugged it and plugged it back in and window and sunroof started working for three days! then it quit again. we unplugged module, plugged it back in and windows worked but crazy like the right rear button worked the driver window and so forth, so i purchased a used module off ebay (from where jags go to die) installed it and worked fine for about a month. now its the same trouble again, if i un plug and plug it up it will work for a day or two then same problem! any ideas or suggestions? it may be that the used module is bad as well? thanks to all for the great help this forum has been to me.,
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Old 10-22-2010, 09:18 PM
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These cars at times can be very temperamental and finding the problem may take time. Now that I got that out of the way you will need to dig in and find the problem. I am attaching a link for a oneline for your car. http://www.gusglikas.com/AutoRepairElectrical.htm and look at fig 15.1. Poor connections have been the cause of many of the problems and I would suggest that you look in that area, check plugs, connectors, power and ground connections related to that window and roof. In my 93 xj-s I took the switches apart and cleaned them, if only your problem could be fixed that easy. Just be sure to disconnect the battery prior to messing with the power system. I hope this helps!
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Old 10-22-2010, 09:46 PM
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I had no clue until you mentioned the rear window switch operated the front window. When weird, unrelated symptoms occur, i agree with gus on electrically related, though the first thing i recommend is a hard reset at the battery. I and others have had strange behaviors like this corrected by a simple reboot. Give it a try...cant hurt.
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Old 12-01-2010, 05:49 PM
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Talking update on window problem

I did what h20boy suggested about a month ago and so far it has worked. No problems as of now.Thanks so much for your help on this issue it was driving me buggy!
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Old 05-07-2012, 12:36 PM
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Angry Driver's Power Window Problem

The driver's power window on my 1999 XJR periodically has been failing to go up or down for a long time. Switch and window motor generally test out okay. Problem always seems to be the window control module inside the door.

During the last several months, Ive been through three different used modules that were tested and working before my purchase. In each instance, the module worked for periods of several days to several months before failing. A few weeks ago I read on this forum about rebooting the system by disconnecting the battery for five to ten minutes. The first time I tried this, it worked for several days. I then tried it again, and the reboot has now been working for ten days. I hope the window continues to work, but Im doubtful because the battery reboot failed after a period of time for some other users of this forum.
It appears that the problem is not the control module, not is it a short or loose connection in the system because the battery reboot appears to always result in the module working again, at least temporarily, and it appears unlikely that a reboot could fix a short or loose connection. Another thread on this forum (99 xjr drivers window / sunroof electrical - Jaguar Forums - Jaguar Enthusiasts Forum) suggests that low voltage from the battery, possibly during cranking, may cause failure of the retention system in the control module. Does anyone know what the real culprit is?
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Old 10-03-2012, 04:46 PM
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My driver's window control module has been repeatedly failing since my first post here in May 2012. After a failure, I reset or reboot the system by disconnecting one battery cable for a few minutes. When I re-attach the battery cable, the window module works again. But it lasts only a few days to a few weeks, and then I have to reset the system again. Recently, I've had a battery switch installed, which allows me to easily turn off (disconnect) the battery and then easily switch it back on after a minute or two, thereby resetting or rebooting the electrical system. I just tried it a moment ago, and it worked fine. My driver's side window now functions again. But I've still not found out what is causing the module failures. Does anyone know the cause?
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Old 02-28-2015, 01:02 PM
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probably need a new battery
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Old 03-01-2015, 08:43 PM
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I've been experiencing the periodic and repeated failure of the window module since early 1012. I can enter the battery compartment in the trunk and reboot the electrical system--i.e., disconnect one battery cable for a minute or so and then reconnect If--and the driver-side power window then operates fine for several days to weeks. Only the drivers side window is affected. The other power windows continue to operate normally. During the three-year period in which I've been experiencing the periodic drivers-side power window failure, I've installed a new large and powerful battery and checked the electrical system connections running from the battery, which had no impact on the problem. I've talked with numerous Jag repairmen and watched the responses on this site, with no success in identifying the cause or remedy. Help, please!
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Old 03-02-2015, 04:52 PM
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Quote:
Originally Posted by ElseyM View Post
I've been experiencing the periodic and repeated failure of the window module since early 1012.....
Jeez, youve REALLY had that car for a long time!
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Old 03-03-2015, 07:12 AM
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Actually mine turned out to be the passenger door wasn't closing completely and the "refrigerator button' IN THE FRONT FENDER WASN'T ENGAGING ENOUGH TO GROUND OR WHATEVER IT DOES.
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01, 1999, 99, crazy, drivers, jaguar, lr, module, power, problems, window, windows, xj8, xj8l, xk8



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