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

CONTROL SYSTEM [MZI-3.5]
01-40–4
ENGINE CONTROL SYSTEM DIAGRAM [MZI-3.5]
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ELECTRICAL FAN CONTROL OUTLINE [MZI-3.5]
id0140c1103800
• 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]
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• 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.
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TP SENSOR
FUEL INJECTOR
CMP SENSOR (RH)
CMP SENSOR (LH)
CKP SENSOR
IGNITION
COIL
GENERATOR
CHT SENSOR
OCV
(LH)
PCV VALVE
HEATER
FITTING
PCV VALVE
AIR CLEANER
MAF/IAT SENSOR
FRONT
HO2S (LH)
REAR
HO2S (LH)
KS
PCM
: TO PCM
PURGE
SOLENOID
VALVE
APP SENSOR
THROTTLE VALVE ACTUATOR
OCV
(RH)
FRONT
HO2S (RH)
REAR
HO2S (RH)
FUEL TANK
PRESSURE
SENSOR
CV SOLENOID
VALVE
2WD AWD
ac9uun00000595
CHT SENSOR
VEHICLE SPEED SIGNAL
A/C ON SIGNAL
FAN CONTROL MODULE
PCM
REFRIGERANT PRESSURE SWITCH
(MIDDLE)
ac9uun00000214
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