Evaporator Temperature Sensor / Switch: Testing and Inspection

HEATING / AIR CONDITIONING: FRONT EVAPORATOR TEMPERATURE SENSOR: INSPECTION

1. INSPECT EVAPORATOR TEMPERATURE SENSOR (NO. 1 COOLER THERMISTOR)

(a) Measure the resistance according to the value(s) in the table below.





Standard resistance:





Text in Illustration





If the resistance is not as specified, replace the evaporator temperature sensor (No. 1 cooler thermistor).

NOTICE:
* Hold the sensor only by its connector. Touching the sensor may change the resistance value.
* When measuring, the sensor temperature must be the same as the ambient temperature.

HINT
As the temperature increases, the resistance decreases (see the graph).