Windows won't go up or down - 2001 Ford Taurus

Sounds like you have issue with the push button controls for the window. I really don't think I had to say it. If you remove the door panels and check it out you may find, rust broke wires, bad connection some simple problems which need a better visual look. If a window goes down but not up. It should not be a fuse, relay or power issue unless the connection is a problem.

You have a SHORT, check for chafing of the wires...

check fuse first/ if good check wires at the switch for voltage if all good check for voltage going to window motor if no voltage replace switch if you have voltage (12) v change motor

Check for a broken wire in the door jam. Other wise I think, You need to research this more, that the Left Front Power Window Switch is actually a door module. I would guess it has either lost power or gone bad.

You also have Circuit Breakers for your windows, Or your Master Switch ,You can Test the Driver Control Switch or the rear switches by removing the Switches and using the connector Plug and a Jump wire try jumping accross the wires,if they go up or down you could have a Bad Switch,if nothing moves more than likely your Window Motor is bad. BUT first CHECK your Circuit Breakers ,It could be Labeled as accessery Relay or circuit Breaker.

There are fuses for both windows and door locks, If fuses are good may be electrical problems

check master switch,window motor-regulator

Try replacing the fuse for your back windows or you might have to replace the electric motor that operates the back windows.

Window regulator.

if possible take the driverside window switch out then put it on the passenger side if this works its the switch let me know what happens