System Air Flow Description: Floor/Defrost

WARNING: This page is about a different car, the 2005 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying System Air Flow Description (Defrost/Floor)

Courtesy of MAZDA MOTORS CORP.

When FLOOR/DEFROST is selected:

The air inlet blend door is in the no vacuum position blocking recirculation air and allowing outside air.
The footwell blend door is at full vacuum allowing air to flow through the footwell ducts.
The defrost blend door is in the no vacuum position, allowing airflow to both the windshield defroster hose nozzle and side window demister hose nozzle ducts.
The vent/register blend door is in the no vacuum position.
The A/C compressor is enabled when FLOOR/DEFROST is selected to dehumidify the air and reduce windshield fogging.
The blower motor is on.