Front A/C-Heater Unit

Heater, Ventilation & Air Conditioning (HVAC) functions are electronically controlled by the HVAC control module. HVAC control module is an integral part of the A/C-heater control panel (located in center of instrument panel, below radio). A/C-heater control panel consists of temperature controls, blower motor switch, A/C switch and airflow outlet mode selector to maintain climate of vehicle cabin. Additional switches for rear wiper, intermittent rear wiper, rear washer motor, rear window defroster, recirculated or fresh air are also located on A/C-heater control panel. Rear A/C-heater blower master control switch is located next to radio (if equipped).

Outside air enters vehicle through cowl grille at base of windshield or air is recirculated within vehicle cabin by blower motor. Airflow is directed through HVAC plenum housing through of a series of actuator mode doors, which are controlled by HVAC control module. Air temperature is modified by A/C evaporator core and/or heater core in HVAC plenum housing. Airflow is directed by actuator mode door through ducts to appropriate outlet vents. Dual zone temperature HVAC unit has dual blend air doors that are regulated independently of each other, allowing temperature settings to be different from driver's side to passenger's side (if equipped).