Heater-A/C Controls

Fig.2 Heater-Air Conditioner Control System:

HEATER AND AIR CONDITIONER CONTROLS
The manual temperature control heater-A/C system uses a combination of electrical, and vacuum controls. The Automatic Temperature Control (ATC) heater-A/C system uses only electrical controls. These controls provide the vehicle operator with a number of setting options to help' control the climate and comfort within the vehicle. Refer to the owner's manual for more information on the suggested operation and use of these controls.

Both heater-A/C control panels are located inboard of the instrument cluster on the instrument panel. Both control panels have a temperature control knob, a mode control knob, a blower motor switch knob, and an air conditioning compressor pushbutton switch. The ATC control panel includes a Recirc pushbutton switch and a vacuum fluorescent display area.

The ATC control panel also includes the ATC controller. The ATC controller contains a microprocessor and uses internal programming along with hard- wired sensor inputs and messages received on the Chrysler Collision Detection (CCD) data bus network to control the many functions and features of the ATC system.

Both the manual heater-A/C control panel and the ATC control panel and controller units cannot be repaired. If faulty or damaged, the entire unit must be replaced.