Ambient Temperature Sensor / Switch HVAC: Testing and Inspection

AIR CONDITIONING: AMBIENT TEMPERATURE SENSOR: ON-VEHICLE INSPECTION

1. INSPECT AMBIENT TEMPERATURE SENSOR

(a) Disconnect the A6 ambient temperature sensor connector.

(b) Measure the resistance between terminals 1 and 2 of the A/C ambient temperature sensor at each temperature, as shown 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 almost the same as the ambient temperature.

HINT

As the temperature increases, the resistance decreases (see the graph). If the resistance value is not as specified, replace the sensor.