Front Mounted Rear Blower Switch
WARNING: This page is about a different car, the 1995 Ford RV Cutaway, 1995 Ford Econoline, 1995 Ford Cutaway, and 1995 Ford Club Wagon. However, it is still accessible from the selected car via links, so may be relevant.
Vehicles equipped with auxiliary A/C-heater system have a rear blower speed control switch mounted under main system blower switch. Switch has 3 blower speeds, a REAR CONTROL position and an OFF position.