Mazda CX-9 2007 Service Highlights page 328

FULL-AUTO AIR CONDITIONER FUNCTION
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).
AMBIENT
TEMPERATURE
SENSOR
CABIN
TEMPERATURE
SENSOR
ECT SENSOR
EVAPORATOR
TEMPERATURE
SENSOR
(FRONT, REAR)
SOLAR
RADIATION
SENSOR
07-40–16
CONTROL SYSTEM
FRONT CLIMATE
CONTROL UNIT
AIRFLOW
TEMPERATURE
CONTROL
AIRFLOW
VOLUME
CONTROL
AIRFLOW
MODE
CONTROL
AIR INTAKE
CONTROL
REFRIGERANT
PRESSURE SWITCH
(HI AND LO
PRESSURE)
A/C
COMPRESSOR
CONTROL
REFRIGERANT
PRESSURE SWITCH
(MEDIUM PRESSURE)
AIR MIX ACTUATOR
(DRIVER SIDE,
PASSENGER SIDE,
REAR)
POWER MOS FET
(FRONT, REAR)
AIRFLOW MODE ACTUATOR
(FRONT, REAR)
AIR INTAKE ACTUATOR
PCM
A/C RELAY
A/C CUT
CONTROL
COOLING
FAN
CONTROL
id074000100600
BLOWER MOTOR
(FRONT, REAR)
MAGNETIC CLUTCH
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