Section 40 (A/C-Heater System): Description
WARNING: This page is about a different car, the 1995 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
To avoid injury from accidental air bag deployment, read and carefully follow all SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM procedures in the AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section.
The automatic A/C-heater system consists of an Electronic Automatic Temperature Control (EATC) module, ambient temperature sensor, sunload sensor, and in-vehicle temperature sensor. The controlled components include a Pulse Width Modulated (PWM) blower speed controller, 3 vacuum-actuated air control doors, and an electrically operated temperature blend door.
Compressor clutch operation is controlled by high and low pressure cut-out switches and an A/C cut-out relay with inputs from the PCM.