9-3 Arc/Aero (9440) L4-2.0L Turbo (2.0 T) (2004)
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Blower Motor: Description and Operation
Ventilation Fan, MCC
Control Unit, Ventilation Fan, MCC (220a)
Control Unit, Ventilation Fan, MCC (220a)
Main function
The control unit controls ventilation fan motor speed with input from the MCC unit.
Type
The control unit contains electronics which receive and process the MCC unit's control signal regarding fan speed. The control unit grounds the
ventilation fan motor and controls fan speed by increasing or decreasing the power supply.
Connection
The control unit has one connector which is connected to the MCC unit and two separate outputs for ventilation fan motor power supply and ground.
Four pin connector.
