CONTROL SYSTEM
07–40–5
07–40
MAGNETIC CLUTCH CONSTRUCTION
E5U074061010N01
• Consists of the following parts:
— Pressure plate
— Shim
— Snap ring
— A/C compressor pulley
— Stator
End Of Sie
EVAPORATOR TEMPERATURE SENSOR CONSTRUCTION
E5U074061022N01
• A thermistor type has been adopted.
End Of Sie
REFRIGERANT PRESSURE SWITCH CONSTRUCTION
E5U074061503N01
• A triple-pressure type has been adopted.
• The refrigerant pressure switch is composed of the high-pressure and low-pressure switches, which cut the A/
C signal to protect the refrigeration cycle if pressure in the refrigeration cycle is too high or too low; and the
medium-pressure switch, which sends an cooling fan control signal according to the operation load of the
cooling fan.
Medium-pressure Switch
• When refrigerant pressure reaches approx. 1.52 MPa {15.5 kgf/cm
2
, 221 psi} or more, the contact turns on,
and a cooling fan control signal is sent to the PCM.
End Of Sie
PRESSURE
PLATE
SHIM
SNAP
RING
SNAP
RING
A/C COMPRESSOR
PULLEY
S TATO R
E5U740ZS5104
EVAPORATOR
TEMPERATURE
SENSOR
E5U740ZS5101
ON
OFF
PCM
REFRIGERANT PRESSURE SWITCH
OPERATING PRESSURE (MPa {kgf/cm
2
,psi})
COOLING FAN
CONTROL
SIGNAL
MEDIUM-
PRESSURE
SWITCH
0.2—0.4 {2.04—4.07, 29.0—58.0}
1.52—1.72 {15.5—17.5, 221—249}
E5U740ZS5103
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