| Description and Operation Heating and Ventilation The heating and ventilation system has the following features: - Delivers heated or cooled air to maintain the vehicle interior temperature and comfort level.
- During A/C operation; reduces the relative humidity of the air inside the vehicle.
- The blower motor draws outside air or recirculates air from within the vehicle.
- Temperature blending is varied by the temperature blend door which regulates the amount of air that flows through or around the 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 heater core. Blower Motor The blower motor pulls air from the air inlet and forces it into the plenum chamber where it is mixed and distributed. | 
