Function Selector Modes: Defrost
WARNING: This page is about a different car, the 1995 Ford Probe. However, it is still accessible from the selected car via links, so may be relevant.
In DEFROST mode, outside air is routed through system to defroster outlets. Vacuum is not applied to recirculated/fresh air, panel, floor and defrost door vacuum motors. Blower motor speed and temperature can be adjusted to desired settings.