Mazda 2007 CX-9, Service Highlights

Page: 323 / 614

CONTROL SYSTEM
07-40–11
07-40
MAGNETIC CLUTCH CONSTRUCTION
id074000101300
•
Consists of the following parts:
—
Pressure plate
—
Shim
—
Snap ring
—
A/C compressor pulley
—
Stator
End Of Sie
NG: REFRIGERANT PRESSURE SWITCH
REFRIGERANT PRESSURE SWITCH CONSTRUCTION
id074000103700
•
A triple pressure type has been adopted.
•
Consists of the low/high-pressure switch that protects the refrigerant cycle by cutting the A/C signal when
pressure in the refrigerant cycle is abnormally high or low, and the medium-pressure switch that outputs an
idling increase signal according to the A/C compressor operation load.
Medium-pressure Switch
•
When the refrigerant pressure reaches approx. 1.44 MPa {14.7 kgf·cm
2
, 209 psi} or more , the contact turns
on, and a cooling fan control signal is sent to the PCM.
End Of Sie
NG: SOLAR RADIATION SENSOR
SOLAR RADIATION SENSOR CONSTRUCTION
id074000103800
•
A photo diode (light-receiving diode) has been adopted.
•
There are two photodiodes in each sensor and
each of them sends signals from the driver and
passenger-side to the front climate control unit.
End Of Sie
NG: AMBIENT TEMPERATURE SENSOR
PRESSURE PLATE
SNAP RING
SNAP RING
STATOR
A/C COMPRESSOR PULLEY
SHIM
am8rrn00000317
ON
OFF
PCM
REFRIGERANT PRESSURE SWITCH
OPERATION PRESSURE
MEDIUM-PRESSURE
SWITCH
COOLING FAN
CONTROL SIGNAL
MPa {kgf/cm
2
, psi}
1.11—1.35 {11.4—13.7, 161—195}
1.44—1.60 {14.7—16.3, 209—232}
am8rrn00000287
SOLAR RADIATION
SENSOR
A
B C
A B C
DRIVER SIDE
PASSENGER SIDE
ac9uun00000220
3423-1U-06H(07-40).fm 11 ページ ２００６年１１月２２日 水曜日 午後２時４８分