A/C-Heater Control Module
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
The A/C-Heater Control Head displays temperature settings and readings on a Vacuum Fluorescent (VF) display panel. The control head contains buttons to select fresh outside air, manually select temperature control and A/C compressor on and off operation. A mode control knob controls manual operation of different modes and FAN control knob regulates blower speeds. Function of both control knobs can be put in automatic operation by depressing them. See Fig 1.