Ambient Temperature Sensor / Switch HVAC: Testing and Inspection

AIR CONDITIONING: AMBIENT TEMPERATURE SENSOR: INSPECTION

1. INSPECT AMBIENT TEMPERATURE SENSOR

(a) Remove the A/C ambient temperature sensor.





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

(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).