Blower Motor
WARNING: This page is about a different car, the 1996 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
Power to blower motor is controlled by a normally open blower motor relay, located in auxiliary relay box No. 2. When ignition is on, blower motor relay is energized, providing power to blower motor. The blower motor ground circuit is controlled by blower speed controller.