Evaporator Temperature Sensor / Switch: Testing and Inspection

ON-VEHICLE INSPECTION

INSPECT A/C EVAPORATOR TEMPERATURE SENSOR

a. Remove the A/C evaporator temperature sensor (A/C thermistor).




b. Disconnect the connector from the A/C evaporator temperature sensor (A/C thermistor).










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

NOTE:
- Even slightly touching the sensor may change the resistance value. Be sure to hold the connector of the sensor.
- When measuring, the sensor temperature must be the same as the ambient temperature.

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