Ambient Temperature Sensor / Switch HVAC: Testing and Inspection

ON-VEHICLE INSPECTION

1. INSPECT A/C AMBIENT TEMPERATURE SENSOR
a. Remove the A/C ambient temperature sensor.
b. Disconnect the connector from A/C ambient temperature sensor.







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).

If the resistance is not as specified, replace the A/C ambient temperature sensor.