Evaporator Temperature Sensor / Switch: Testing and Inspection

AIR CONDITIONING: EVAPORATOR TEMPERATURE SENSOR:

ON-VEHICLE INSPECTION

1. 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 below.
Standard resistance:





NOTICE:
- 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).
If the resistance is not as specified, replace the A/C evaporator temperature sensor.