Power windows

My power windows (in the back only) do not work on my 1993 Merc Topaz, unfortunatley the rear passenger side window is stuck half way DOWN. not good in rainy Seattle. Iv'e tested the up/down control switch units in the arm rests (both back and the front drivers side master unit) and the test ok. Iv'e replaced the power window relay (by the fuse box) none of this has worked. There is a lock button on the front drivers side master unit which locks the rear windows so kids can;t play up/down, could this be the problem? is there a relay for the lock switch, any help would be appreciated , thanks

 

i made a mistake

 

Most of the time this is a window motor. Hold the switch in the up position and hit the door panel in the center. (with your hand) See if motor doesn't start working. If so than replace the motor.

 

98 taurus power window on the passanger side won't work. Motor?

 

Most likely the window regulator/motor is defective.

I would first check to see if you have voltage going to the regulator while you are depressing the window up/down switch. You would unplug the connector to the regulator and put your multimeter or neon test lead into the plug connector. Should have 12v.