Humidity/In-car Temperature Sensor Test

Humidity/In-Car Temperature Sensor Test

Humidity Sensor Test

NOTE: Before testing the sensor, check for climate control DTCs Initial Inspection and Diagnostic Overview.

1. Remove the humidity/in-car temperature sensor Service and Repair.

2. Turn the ignition switch to ON (II). Measure the voltage between (+) probe on terminal No. 3 and (-) probe on terminal No. 2 with the connector connected.









3. If the voltage is not as specified, replace the humidity/in-car temperature sensor Service and Repair.

In-car Temperature Sensor Test

NOTE: Before testing the sensor, check for climate control DTCs. Initial Inspection and Diagnostic Overview

1. Remove the humidity/in-car temperature sensor Service and Repair.

2. Test the humidity/in-car temperature sensor while holding it in front of the dashboard center vent.

- Measure the resistance with the system set to Max Cool.
- Measure the resistance with the system set to Max Hot.

3. Compare the resistance reading between terminals No. 1 and No. 2 of the humidity/in-car temperature sensor with the specifications shown in the graph; the resistance should be within the specifications.





4. If the resistance is not as specified, replace the humidity/in-car temperature sensor Service and Repair.