System Operation

MAX A/C
When MAX A/C is selected:
^ The air inlet door vacuum control motor is at full vacuum, closing off outside air and admitting only recirculated air.
^ The panel door and floor/defrost door vacuum control motors are at full vacuum, directing airflow to the instrument panel A/C registers. A small amount of airflow from the side window demisters will be present.
^ The A/C request button will be enabled. The A/C compressor will operate automatically if the outside temperature is above approximately 6°C (43°F). In addition, the A/C compressor will operate and the indicator will be illuminated if the A/C request button is selected and the outside temperature is above approximately 6°C (43°F).
^ The blower motor is on.
^ The auxiliary blower motor (if equipped) is enabled.







PANEL
When PANEL is selected:
^ The air inlet door vacuum control motor is at no vacuum, admitting only outside air into the passenger compartment.
^ The panel door and floor/defrost door vacuum control motors are at full vacuum, directing airflow to the instrument panel A/C registers. A small amount of airflow from the side window demisters will be present.
^ The A/C request button will be enabled. The A/C compressor will operate and the indicator will be illuminated if the A/C request button is selected and the outside temperature is above approximately 6°C (43°F).
^ The blower motor is on.
^ The auxiliary blower motor (if equipped) is enabled.







OFF
When OFF is selected:
^ The air inlet door vacuum control motor is at full vacuum, closing off outside air from entering the passenger compartment.
^ The floor/defrost door vacuum control motor is at partial vacuum and the panel door vacuum control motor is at no vacuum, closing off airflow to the defrost duct, side window demisters, floor duct and instrument panel A/C registers.
^ The A/C request button will be enabled. The A/C compressor will operate and the indicator will be illuminated if the A/C request button is selected and the outside temperature is above approximately 6°C (43°F).
^ The blower motor is off.
^ The auxiliary blower motor (if equipped) is disabled.







PANEL/FLOOR
When PANEL/FLOOR is selected:
^ The air inlet door vacuum control motor is at no vacuum, admitting only outside air into the passenger compartment.
^ The floor/defrost door vacuum control motor is at full vacuum and the panel door vacuum control motor is at partial vacuum, directing airflow to the floor duct and the instrument panel A/C registers. A small amount of airflow from the side window demisters will be present.
^ The A/C compressor will operate if the outside temperature is above approximately 6°C (43°F).
^ The blower motor is on.
^ The auxiliary blower motor (if equipped) is enabled.







FLOOR
When FLOOR is selected:
^ The air inlet door vacuum control motor is at no vacuum, admitting only outside air into the passenger compartment.
^ The floor/defrost door vacuum control motor is at full vacuum and the panel door vacuum control motor is at no vacuum, directing airflow to the floor duct. A small amount of airflow from the side window demisters will be present.
^ The A/C compressor will not operate.
^ The blower motor is on.
^ The auxiliary blower motor (if equipped) is enabled.







FLOOR/DEFROST
When FLOOR/DEFROST is selected:
^ The air inlet door vacuum control motor is at no vacuum, admitting only outside air into the passenger compartment.
^ The floor/defrost door vacuum control motor is at partial vacuum and the panel door vacuum control motor is at no vacuum, directing airflow to the floor duct, the defroster duct, and the side window demisters.
^ The A/C request button will be enabled. The A/C compressor will operate automatically if the outside temperature is above approximately 6°C (43°F). In addition, the A/C compressor will operate and the indicator will be illuminated if the A/C request button is selected and the outside temperature is above approximately 6°C (43°F).
^ The blower motor is on.
^ The auxiliary blower motor (if equipped) is enabled.







DEFROST
When DEFROST is selected:
^ The air inlet door vacuum control motor is at no vacuum, admitting only outside air into the passenger compartment.
^ The panel door and floor/defrost door vacuum control motors are at no vacuum, directing airflow to the defroster duct and the side window demisters.
^ The A/C request button will be enabled. The A/C compressor will operate automatically if the outside temperature is above approximately 6°C (43°F). In addition, the A/C compressor will operate and the indicator will be illuminated if the A/C request button is selected and the outside temperature is above approximately 6°C (43°F).
^ The blower motor is on.
^ The auxiliary blower motor (if equipped) is enabled.

A/C Electrical Components, Part 1:

A/C Electrical Components, Part 2:

A/C Electrical Components