Mazda CX-9 2007 - Page 328

CONTROL SYSTEM
07-40–16
FULL-AUTO AIR CONDITIONER FUNCTION
id074000100600
Block Diagram
• The control system consists of input components (sensors), output components (actuators, magnetic clutch,
power MOS FET, and other parts), and a control device (front climate control unit).
PCM
AIR MIX ACTUATOR
(DRIVER SIDE,
PASSENGER SIDE,
REAR)
FRONT CLIMATE
CONTROL UNIT
AMBIENT
TEMPERATURE
SENSOR
CABIN
TEMPERATURE
SENSOR
ECT SENSOR
EVAPORATOR
TEMPERATURE
SENSOR
(FRONT, REAR)
SOLAR
RADIATION
SENSOR
REFRIGERANT
PRESSURE SWITCH
(MEDIUM PRESSURE)
REFRIGERANT
PRESSURE SWITCH
(HI AND LO
PRESSURE)
BLOWER MOTOR
(FRONT, REAR)
POWER MOS FET
(FRONT, REAR)
AIRFLOW MODE ACTUATOR
(FRONT, REAR)
AIR INTAKE ACTUATOR
A/C RELAY
MAGNETIC CLUTCH
AIRFLOW
TEMPERATURE
CONTROL
AIRFLOW
VOLUME
CONTROL
AIRFLOW
MODE
CONTROL
AIR INTAKE
CONTROL
A/C
COMPRESSOR
CONTROL
A/C CUT
CONTROL
COOLING
FAN
CONTROL
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