Auxiliary System
WARNING: This page is about a different car, the 1995 Ford Aerostar. However, it is still accessible from the selected car via links, so may be relevant.
Vehicles with auxiliary A/C unit have 2 additional blower motor speed switches. Primary control is through 3-speed switch assembly located on instrument panel. See Fig 1. This switch permits driver to control auxiliary blower motor. When switch is in REAR CTRL position, 4-speed switch, located on auxiliary A/C unit, controls auxiliary blower motor. Driver may override auxiliary switch.