Individual Window Operation
WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue. However, it is still accessible from the selected car via links, so may be relevant.
When the ignition switch is in the RUN or ACCY position, with the window lockout switch is disengaged, and an individual window switch is pressed in the down position, battery positive voltage is applied to the window regulator motor causing that window to open. When the individual window switch is pressed in the up position, voltage is applied to the opposite side of the window regulator motor causing that window to close. The ground is applied to both sides of the window regulator motors until a switch is activated.