Acura NSX 1991 Manual page 701

Main Menu
Evaporator Temperature
Sensor
Removal
Give the evaporator temperature sensor a quarter turn,
then pull out to remove it.
EVAPORATOR
TEMPERATURE SENSOR
Table of Contents
Test
Compare the resistance reading between the terminals
of the evaporator temperature sensor with specification
shown in the following graph: It should be within
specification.
NOTE: Dip the sensor in ice water, and measure the
resistance. Then pour hot water on the sensor, and
check for change in resistance.
CAUTION: The sensor uses a thermistor which
can be damaged if high current is applied to it
during testing. Therefore, use a circuit tester
that puts out a measuring current of 1 mA or
less.