Operation - Mazda CX-9 2007 Service Highlights

FAN CONTROL MODULE CONSTRUCTION/OPERATION [MZI-3.5]
Construction
• Fan control module is installed on the radiator cowling.
WITHOUT TOWING PACKAGE
FAN CONTROL
MODULE
COOLING FAN
MOTOR NO.2
RADIATOR COWLING

Operation

• The fan control module drives the each fan motors based on the cooling fan control signals sent by the PCM
according to the following:
— Engine coolant temperature
— Vehicle speed
— Whether refrigerant pressure switch (middle) is on or off
— Whether magnetic clutch is on or off
• The fan control module allows continuously variable control of the fan motor rotation rate reducing fan operation
noise and power consumption.
Without Towing Package
BATTERY
01-12–8
COOLING SYSTEM [MZI-3.5]
COOLING FAN
MOTOR NO.1
COOLING FAN ELECTRICAL SYSTEM WIRING DIAGRAM
IGNITION SWITCH
COOLING FAN RELAY
FAN CONTROL MODULE
M
COOLING FAN COOLING FAN
MOTOR NO.1 MOTOR NO.2
WITH TOWING PACKAGE
COOLING FAN
FAN CONTROL
MOTOR NO.2
MODULE NO.2
RADIATOR COWLING
M
id0112d1100600
COOLING FAN
MOTOR NO.1
FAN CONTROL
MODULE NO.1
ac9uun00000477
PCM
ac9uun00000478