Engine Control System Diagram [Mzi-3.5]; Electrical Fan Control Outline [Mzi-3.5]; Electrical Fan Control Block Diagram [Mzi-3.5] - Mazda CX-9 2007 Service Highlights

ENGINE CONTROL SYSTEM DIAGRAM [MZI-3.5]

PURGE
SOLENOID
VALVE
CV SOLENOID
VALVE
FUEL TANK
PRESSURE
SENSOR
2WD AWD
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ELECTRICAL FAN CONTROL OUTLINE [MZI-3.5]

• Through cooling of the radiator and condenser by operation of the cooling fan according to vehicle conditions,
engine reliability and cooling performance have been improved.
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ELECTRICAL FAN CONTROL BLOCK DIAGRAM [MZI-3.5]

• The PCM determines the engine operation conditions based on input signals from the sensors, calculating the
optimum fan motor rotation speed as the fan motor drive duty ratio, and sends a signal to the fan control module
to control the cooling fan rotation speed.
REFRIGERANT PRESSURE SWITCH
VEHICLE SPEED SIGNAL
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01-40–4
CONTROL SYSTEM [MZI-3.5]
CMP SENSOR (LH)
FUEL INJECTOR
OCV
FRONT
(LH)
HO2S (LH)
REAR
HO2S (LH)
CHT SENSOR
CHT SENSOR
(MIDDLE)
A/C ON SIGNAL
THROTTLE VALVE ACTUATOR
CMP SENSOR (RH)
PCV VALVE
HEATER
FITTING
OCV
(RH)
PCV VALVE
FRONT
HO2S (RH)
REAR
HO2S (RH)
KS
CKP SENSOR
PCM
FAN CONTROL MODULE
id0140c1100300
MAF/IAT SENSOR
AIR CLEANER
TP SENSOR
GENERATOR
PCM
IGNITION
COIL
APP SENSOR
: TO PCM
ac9uun00000595
id0140c1103800
id0140c1103900
ac9uun00000214