The if that window is the only one not going up and down, its the motor, or maybe even a short in the wiring. ** My 4 door went out one window at the time.
What is the problem with the window?
The electric windows on a 406 might behave weird if you disconnect the battery. But holding down the "window-down" on drivers side for 10 seconds or so should fix it.
You will need to raise the drivers side window all the way up and then hold the button in the up position for about 20 seconds, that should do it.
Electric or manual?
have someone check the wiring of the window control panel, if its not that, its your window motor, for a '90 a used motor from a junk yard probably wouldn't be more than 30 bucks
If it is electric windows it is the motor which needs replacing or it could be the regulator
Begin by removing the inside door panel. Remove the wiring harness from the electric window regulator. Remove the window regulator retaining screws.
If the 2002 Beetle window is crooked, then the problem could be that the window track is loose or damaged. If the electric system wont move the window up or down, check the fuse and window relay for a problem.
I had a similar problem with a Toyota Corolla. Could be worth a shot There may be a window lock button (usually near the drivers electric window controls). That causes the controls from all, except the driver's, to be unresponsive.
Two common culprits are found to be the cause of electric window problems with a Ford Focus. The first is that the power window motor has burned out. The second is the window coming off track.
Busted switch, motor or wiring.
brake the window