Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Evaporator Temperature Sensor / Switch: Testing and Inspection





AIR CONDITIONING: FRONT EVAPORATOR TEMPERATURE SENSOR: INSPECTION

1. INSPECT COOLER THERMISTOR SENSOR

(a) Check the resistance.





(1) Measure the resistance and check the results in accordance with the values in the table below.

Standard:









If the result is not as specified, replace the cooler thermistor sensor.

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 almost the same as the ambient temperature.

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