2002 taurus Driver side front and rear windows won't go up or down. passenger side works
As the other window works it not a power power supply problem, so next you need too find out if the window switch is making connections, both positive and negative and then they reverse for the other direction, if you have power and ground through the switch then the door panel has to come off to,gain access to the window regulator and motor assembly, remove the motor from the regulator assembly and see if it will run if not then the motor is shot and needs replaced if it does run then the regulator is shot and needs replaced.
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