This group covers component replacement and adjustment procedures for the ventilation system. Refer to the following groups for further information:
• 800 Heating, Ventilation, Air Conditioning-General
• 870 Air Conditioner
^ The air distribution levers use cables to control fresh air and heated air to the footwells and the defroster outlets. A fresh air blower is located in the luggage compartment below the windshield.
The ventilation controls have no control over air distribution to the center dash vent or the side dash vents. This center vent is used for A/C only. The left and right side vents are for A/C or heated air and can are turned on and off by the vertical knurled control knob.
• Top lever(s): Controls fresh air intake from outside the vehicle. When the lever(s) is in the extreme left position, air intake from the outside is closed off. When the lever(s) is in the extreme right position, maximum ventilation of the car interior is obtained.
• Middle lever: Fresh air footwell/defrost blend door. This lever directs fresh air to the footwells (extreme left position) or the defroster (extreme right position) or a blend of the two.
• Bottom lever: Heated air footwell/defrost blend door. This lever directs heated air to the footwells (extreme left position) or the defroster (extreme right position) or a blend of the two. On cars with automatic heating, heated air temperature is controlled by the temperature control knob between the seats.
The HVAC system uses several other blowers for heating and A/C air distribution:
• Heater blower motor, in engine compartment. See 801 Heater.
• Footwell blowers. See 801 Heater.
• A/C evaporator blower, in luggage compartment. See 870 Air Conditioner.
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