1993 GMC Jimmy power window problems

1993 GMC JIMMY
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CRICKETB
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Electrical problem
1993 GMC Jimmy 6 cyl Four Wheel Drive Automatic

all 4 of my windows stoped working at same time. all fuses in fuse box are good. and window motors are geting between 12.00 and 13.00 valts of power. what could the problem be
Apr 5, 2009 at 10:04 PM
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PEAR69
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Did you test the motors at the motors themselves - meaning you took apart all 4 (or 2) door panels? If there is power at the motor, then the motor is either bad or a ground has failed. Check and double check the ground. All 4 window motors failing at once is rare, but it could happen.
Apr 5, 2009 at 11:29 PM
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CRICKETB
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yes we checked at the window motor is there a relay swich or a box somewhere on my truck dat could b bad and does the body control modulater have anything 2 do with my power windows?
Apr 13, 2009 at 3:27 AM
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PEAR69
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If there is 12 volts at the motor (as you stated) then the switches (and relays) are good. The body control modulator has nothing to do with the power window circuit. How many wires are connected to the motor? Was this vehicle ever in a flood or up to the doors in water?
Apr 15, 2009 at 12:14 AM