Motor, air distribution damper (221)
Motor, air distribution damper (221) |
Location |
Motor, air distribution damper (221) .
Main function |
The motor is connected by linkage and controls the floor, panel and defroster distribution damper.
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Type |
The DC motor has a fixed position sensor (potentiometer) which provides information regarding damper position.
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Connection |
DC motor
The motor is connected to MCC unit pins 29 and 31. The output polarity is reversed in order to change the motor rotation direction.
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Potentiometer
The position sensor consists of a potentiometer with a 5 V power supply from MCC pin 28 to potentiometer pin 3 and which is connected to ground via pin 1 from MCC unit pin 8. Potentiometer pin 2 supplies a voltage for MCC pin 20 between 0-5 volts which represents the motor position.