I have a 2002 mustang gt convertible. The power window will not go up or down on the driver side. All of the other windows are working properly. I have checked the driver side window switches with a meter and power is flowing correctly through the switch. When i put my meter on the connection for the power window motor, i do not power with both leads of the meter on the quick connect while switch is engaged. However, when switch is engaged and one lead is on one terminal and the other lead is grounded out to car door, i get 12 and -12 volts down one line. When i do it on the other terminal, i get no power. The color of the wire going into this harness are both white with black stripe. Any advice would be greatly appreciated.

 

I have had the same problem. I went through the door panel and messed around with it and still didn't work. A few days later I kept trying it and it stared working again. I believe mine happens when it rains or I give it a car wash. Give it some time before you start putting alot of money down for it. ( I guess this is what I get for driving a Vert.) Good luck I know this isn't much help.