YH4
GRAND
VITARA
1. Evaporator thermistor
Temperature
Resistance ( )
AIR CONDITIONING (OPTIONAL) 1B-43
A/C EVAPORATOR THERMISTOR
(EVAPORATOR TEMPERATURE SENSOR)
A thermistor is a temperature sensor to sense the temperature of
air discharged from evaporator. The electrical characteristic is
shown in the figure.
When temperature is lower than preset temperature, amplifier
makes magnet clutch turn off to prevent evaporator from frosting.
INSPECTION
Check resistance between A/C evaporator thermistor (1) termi-
nals.
If check results are as not specified, replace thermistor.
Sensor Temperature
Resistance
0_C, 32_F 7.0 – 7.7 k
25_C, 77_F 2.1 – 2.4 k
REMOVAL
Refer to “COOLING UNIT (EVAPORATOR)” in this section.
INSTALLATION
1) Reverse removal sequence to install thermistor.
2) Enable air bag system. Refer to “ENABLING AIR BAG SYS-
TEM” in Section 10B.
3) Evacuate and charge system. Refer to “EVACUATING” and
“CHARGING” in this section.
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