Heating and Ventilation

The heating and defrosting system has the following features:
^ Controls the temperature and, during A/C operation, reduces the relative humidity of the air inside the vehicle.
^ Delivers heated or cooled air to maintain the vehicle interior temperature and comfort level.
^ Controls the A/C blower motor speed.
^ Cooling or heating can be adjusted to maintain the desired temperature.
^ Uses a reheat method to provide conditioned air to the passenger compartment.
^ The blower motor draws outside air through the A/C recirculating air duct, except for MAX A/C cooling, when recirculated air is used.
^ All airflow from the blower motor passes through the A/C evaporator core.
^ The temperature is then regulated by reheating a portion of the air and blending it with the remaining cool air to the desired temperature.
^ The temperature blending is controlled by the temperature blend door, which regulates the amount of air that flows through and around the heater core, where it is then mixed and distributed.

Heater Core:

Heater Core
The heater core consists of fins and tubes arranged to extract heat from the engine coolant and transfer the heat to air passing through the plenum.

Blower Motor:

Blower Motor
The blower motor pulls air from the air inlet and forces it into the plenum assembly where it is mixed and distributed.







Center Console
The center console, if equipped, has a ventilation system for the rear passengers. The center console is supplied with air from the main plenum. A console-mounted blower motor amplifies the airflow. The center console also has an air management door that can direct air up to vents at the top of the center console or down to the floor. The blower switch and the air management door control switch are located in the rear integrated control panel located in the rear of the center console.