Front-Mounted Auxiliary System Fan Switch
WARNING: This page is about a different car, the 2002 Mercury Villager. However, it is still accessible from the selected car via links, so may be relevant.
Switch, located on main control panel, controls auxiliary system fan speeds. Switch has 6 positions: OFF, REAR, 1 (low), 2 (medium-low), 3 (medium-high) and 4 (high). See Fig 1. Switch overrides rear-mounted auxiliary system fan switch when OFF position is selected. Placing switch in REAR position allows auxiliary system fan to be controlled from auxiliary control panel (rear-mounted auxiliary system fan switch).