i got a 92 ls400
i rolled down my window and now it wont roll up
i can roll up the others just the driver wont work

 

check to make sure that the contact points on back of the switch are not corroded. Has the window been rolling up slowly, prior to today? If so, may be time to replace the Power window motor in that door. Just eliminater all other possibilities first.

 

not really but the passenger one is....

 

not sure if it works on 1st gens but to get the window up...
put the master key into the drivers door lock, lock it once, return to center, lock again and hold it that side for a bit

windows and sunroof should all close.

at least they do in the 2nd gens...

 

Doesn't work for the first gen.