Climate Control System (System Airflow Description)

SYSTEM AIRFLOW DESCRIPTION - EMTC

Max A/C
When MAX A/C is selected:
- The air inlet door actuator closes off outside air and admits only recirculated air.
- The recirc button is disabled and the indicator is illuminated.
- The defrost/panel/floor door actuator directs airflow to the instrument panel A/C registers.
- Blended air temperature is available.
- The A/C request button is illuminated and will be disabled.
- The A/C compressor will operate if the outside temperature is above approximately 2°C (35°F).
- The blower motor is ON.

PANEL
When PANEL is selected:
- The recirc request button is enabled. If the recirc request button is selected (indicator ON), the air inlet door actuator closes off outside air from entering the passenger compartment. If the recirc request button is not selected (indicator OFF), the air inlet door actuator admits only outside air into the passenger compartment.
- The defrost/panel/floor door actuator directs airflow to the instrument panel A/C registers.
- Blended air temperature is available.
- The A/C request button is enabled. The A/C compressor will operate and the indicator will illuminate if the A/C request button is selected and the outside temperature is above approximately 2°C (35°F).
- The blower motor is ON.

PANEL/FLOOR
When PANEL/FLOOR is selected:
- The recirc request button is enabled. If the recirc request button is selected (indicator ON), the air inlet door actuator closes off outside air from entering the passenger compartment. If the recirc request button is not selected (indicator OFF), the air inlet door actuator admits only outside air into the passenger compartment.
- The defrost/panel/floor door actuator directs airflow to the floor duct and the instrument panel A/C registers.
- Blended air temperature is available.
- The A/C request button is enabled. The A/C compressor will operate and the indicator will illuminate if the A/C request button is selected and the outside temperature is above approximately 2°C (35°F).
- The blower motor is ON.

OFF
When OFF is selected:
- The recirc request button is disabled.
- The air inlet door actuator closes off outside air and admits only recirculated air.
- The defrost/panel/floor door actuator stops in the last position.
- The A/C request button is disabled.
- The blower motor is OFF.

FLOOR
When FLOOR is selected:
- The recirc request button is enabled. If the recirc request button is selected (indicator ON), the air inlet door actuator closes off outside air from entering the passenger compartment. If the recirc request button is not selected (indicator OFF), the air inlet door actuator admits only outside air into the passenger compartment.
- The defrost/panel/floor actuator directs airflow to the floor duct. A small amount of airflow from the defroster, defroster duct and side window demisters will be present.
- Blended air temperature is available.
- The A/C request button is enabled. The A/C compressor will operate and the indicator will illuminate if the A/C request button is selected and the outside temperature is above approximately 2°C (35°F).
- The blower motor is ON.

FLOOR/DEFROST
When the FLOOR/DEFROST is selected:
- The recirc request button is enabled. If the recirc request button is selected (indicator ON), the air inlet door actuator closes off outside air from entering the passenger compartment. If the recirc request button is not selected (indicator OFF), the air inlet door actuator admits only outside air into the passenger compartment.
- The defrost/panel/floor door actuator directs airflow to the floor duct, the defroster duct and the side window demisters.
- Blended air temperature is available.
- The A/C request button will toggle the indicator. To reduce fogging, the A/C compressor will operate automatically, regardless of indicator status, if the outside temperature is above approximately 2°C (35°F).
- The blower motor is ON.

DEFROST
When DEFROST is selected:
- The air inlet door actuator opens, admitting only outside air into the passenger compartment.
- The defrost/panel/floor door directs airflow to the defroster duct and side window demisters. A small amount of airflow from the floor duct will be present.
- Blended air temperature is available.
- The A/C request button will toggle the indicator. To reduce fogging, the A/C compressor will operate automatically, regardless of indicator status, if the outside temperature is above approximately 2°C (35°F).
- The blower motor is ON.

SYSTEM AIRFLOW DESCRIPTION - EATC

AUTO
When AUTO is selected:
- The temperature control setting is manually set to the desired setting.
- The air inlet door actuator is automatically controlled by the EATC module, based on the temperature setting. Manual overdrive is allowed.
- The defrost/panel/floor mode door actuator is automatically controlled by the EATC module based on the temperature setting.
- The A/C compressor is automatically controlled by the EATC module based on the temperature setting. The A/C compressor will not operate if the outside temperature is below approximately 2°C (35°F). The A/C indicator will automatically turns ON above approximately 2°C (35°F) and automatically turns OFF below approximately -0.5°C (31°F). Manual override is allowed.
- The A/C request button and the RECIRC request button can be manually selected. When manually selected, the A/C indicator will not change state with the changing outside temperature.
- The blower motor is on. The blower motor speed is automatically controlled by the EATC module based on the temperature setting, but can be manually overridden.

OFF
When OFF is selected:
- The RECIRC request button is disabled.
- The air inlet door actuator closes off outside air and admits only recirculated air.
- The defrost/panel/floor door actuator stops in the last position.
- The A/C request button is disabled.
- The blower motor is OFF.

PANEL
When PANEL is selected:
- The recirc request button is enabled. If the recirc request button is selected (indicator ON), the air inlet door actuator closes off outside air from entering the passenger compartment. If the recirc request button is not selected (indicator OFF), the air inlet door actuator admits only outside air into the passenger compartment.
- The defrost/panel/floor door actuator directs airflow to the instrument panel A/C registers.
- Blended air temperature is available.
- The A/C request button is enabled. The A/C compressor will operate and the indicator will illuminate if the A/C request button is selected and the outside temperature is above approximately 2°C (35°F).
- The blower motor is ON.

PANEL/FLOOR
When PANEL/FLOOR is selected:
- The recirc request button is enabled. If the recirc request button is selected (indicator ON), the air inlet door actuator closes off outside air from entering the passenger compartment. If the recirc request button is not selected (indicator OFF), the air inlet door actuator admits only outside air into the passenger compartment.
- The defrost/panel/floor door directs airflow to the floor duct and the instrument panel A/C registers.
- Blended air temperature is available.
- The A/C request button is enabled. The A/C compressor will operate and the indicator will illuminate if the A/C request button is selected and the outside temperature is above approximately 2°C (35°F).
- The blower motor is ON.

FLOOR
When FLOOR is selected:
- The recirc request button is enabled. If the recirc request button is selected (indicator ON), the air inlet door actuator closes off outside air from entering the passenger compartment. If the recirc request button is not selected (indicator OFF), the air inlet door actuator admits only outside air into the passenger compartment, the RECIRC function will time out and the air inlet door will change to the outside air position.
- The defrost/panel/floor door directs airflow to the floor duct.
- Blended air temperature is available.
- The A/C request button is enabled. The A/C compressor will operate and the indicator will illuminate if the A/C request button is selected and the outside temperature is above approximately 2°C (35°F).
- The blower motor is ON.

FLOOR/DEFROST
When the FLOOR/DEFROST is selected:
- The recirc request button is enabled. If the recirc request button is selected (indicator ON), the air inlet door actuator closes off outside air from entering the passenger compartment. If the recirc request button is not selected (indicator OFF), the air inlet door actuator admits only outside air into the passenger compartment, the RECIRC function will time out and the air inlet door will change to the outside air position.
- The defrost/panel/floor door directs airflow to the floor duct, the defroster duct and the side window demisters.
- Blended air temperature is available.
- The A/C request button will toggle the indicator. To reduce fogging, the A/C compressor will operate automatically, regardless of indicator status, if the outside temperature is above approximately 2°C (35°F).
- The blower motor is ON.

DEFROST
When DEFROST is selected:
- The recirc request button and indicator is enabled. Regardless of button and indicator status, the air inlet door actuator admits only outside air into the passenger compartment.
- The defrost/panel/floor door directs airflow to the defroster duct and side window demisters. A small amount of airflow from the floor duct will be present.
- Blended air temperature is available.
- The A/C request button will toggle the indicator To reduce fogging, the A/C compressor will operate automatically, regardless of indicator status, if the outside temperature is above approximately 2°C (35°F).
- The blower motor is ON.