The cable has slipped off a guide or is broken. The regulator is toast. Replace it. Here's a post on how to do it.
http://www.ricksfreeautorepairadvice.com/repair-topics/window-power-repair/replace-a-power-window-motor-regulator
If you press the switch and hear the motor running, the the gear kit needs to be replaced. If you do not hear it, look at the dome light and see if it dims when you press the switch. If it does then you have a bad motor.
you need to check the fuse box or need a new window kit
If the window motor is not running to raise the window, then several things need to be checked to fix the problem. Check the fuse, switch, wiring, and window motor to find which part is bad and needs to be replaced.
the switch is on the door panel approx four inches from the window, this is the only switch that sends power to the window regulator motor (window motor).
You are going to have 2 things to repair with this problem. The window switch and the window motor. The weak motor has melted the inside of the switch. Yep...been there,done that.Replacing the motor wont fix the switch and if you replace the switch the weak motor will melt the new switch.
A power window relay switch relays the power from the car's battery, to the switch itself, and then to the window motor. When pressing the button inside of the car it allows the power to go from the relay switch to the motor and roll the window up or down.
9 outta 10 times it will be a bad power window motor. I rarely see the window switch go bad.
Broken regulator. REplace it. Here's how:http://www.ricksfreeautorepairadvice.com/repair-topics/window-power-repair/replace-a-power-window-motor-regulator
I have a 2000 oldsmobile and i had this problem with the drivers side. come to find out it was the switch and not the motor. If you check with a local junk yard you can pick up a good one for half the cost. I did replace the window motor but it still didnt work. i recommend the switch first then if that doesnt fix it then invest in teh window motor. save urself some money.
Use a test light to see if the motor is getting power. If it is then motor is bad. If it is not getting power "jump" the wires on the switch to see if window will operate, is so switch is bad
electric window motor bad or switch is bad check the motor and see if its getting power if so motor is burnt up if not switch is bad
if the passenger windows works than your motor went out inside of your left window assembly, or your button doesnt work anymore