Outside Air Mode

With the Fan Speed Switch (X179) in position I, II or III, the Vent Switch in position 1, and the Air Supply Selector Switch (X180) in the outside air position, the Vent Switch supplies battery voltage to the A/C Blower Motors (M101) through a resistor in the Blower Resistor Unit (Z112). The A/C Blower Motors run recirculating air within the vehicle, while the Heater Blower Motor (M111) runs as described earlier, to bring outside air into the vehicle. With the Speed Switch not in position 0 (off), the Vent Switch in position 0, and the Selector Switch in the outside air position, only the Heater Blower Motor runs to bring outside air into the vehicle.