Magnetic Clutch Construction; Evaporator Temperature Sensor Construction; Refrigerant Pressure Switch Construction; Medium-Pressure Switch - Mazda 2006 MX-5 Service Highlights

MAGNETIC CLUTCH CONSTRUCTION

• Consists of the following parts:
— Pressure plate
— Shim
— Snap ring
— A/C compressor pulley
— Stator
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EVAPORATOR TEMPERATURE SENSOR CONSTRUCTION

• A thermistor type has been adopted.
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REFRIGERANT PRESSURE SWITCH CONSTRUCTION

• 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
and a cooling fan control signal is sent to the PCM.
REFRIGERANT PRESSURE SWITCH
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CONTROL SYSTEM
PRESSURE
PLATE
OPERATING PRESSURE (MPa {kgf/cm
0.2—0.4 {2.04—4.07, 29.0—58.0}
ON
OFF
1.52—1.72 {15.5—17.5, 221—249}
SNAP
RING
SHIM
SNAP
RING
A/C COMPRESSOR
PULLEY
EVAPORATOR
TEMPERATURE
SENSOR
2
, 221 psi} or more, the contact turns on,
PCM
2
,psi})
COOLING FAN
CONTROL
SIGNAL
MEDIUM-
PRESSURE
SWITCH
E5U074061010N01
STATOR
E5U740ZS5104
E5U074061022N01
07–40
E5U740ZS5101
E5U074061503N01
E5U740ZS5103
07–40–5