CONTROL SYSTEM BLOCK DIAGRAM [MANUAL AIR CONDITIONER]

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• The climate control unit carries out the defroster control base on signal sent from the airflow mode selector dial, and sends an operating signal to the air intake actuator.

• The center panel sends an A/C signal to the PCM via the refrigerant pressure switch based on signals sent from the A/C switch, fan switch and evaporator temperature sensor.

• The PCM sends operating signals to the A/C relay and IAC valve based on A/C signal and vehicle signal.