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1998 deville
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8 Posts
Discussion Starter #1
I am trying to trouble shoot why windows will not roll down. all four windows stopped working at same time. The main controller does not work but the controller on the other windows
does not either, does the driver front window motor controls all the windows ,and if so how can i find out if it is bad ?
 

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98 DeVille, 97 DeVille d'Elegance
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7,345 Posts
Check fuses and relays first. Unusual all four stop at once. Before anyone mentions it the switches are not monitored by the car so no codes for them.
All of the window wiring goes through master switch first then to each switch/motor so check for power and ground at the master switch. Not unheard of for wires in between door and car to break also. If you have power and ground at master switch the switch is probably bad. Both of mine needed replaced when I got them as the windows did funky stuff.
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
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19,272 Posts
Could you have accidently bumped the window lock switch?
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the window lock switch only disables the rear window switches
 

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1992 Fleetwood S&S Hearse, 1993 Buick Roadmaster
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567 Posts
Rodnok01's suggestion. On a lot of cars if that master switch is disconnected/not grounded, whatever, no window is working.
 
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