Humidity/In-Car Temperature Sensor Test

Humidity/In-car Temperature Sensor Test

Humidity Sensor Test

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

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

2. Connect the humidity/in-car temperature sensor 4P connector.

3. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode. Measure the voltage between the terminals with the (+) probe on terminal No. 2 and the (-) probe on the No. 3 terminal with the connector connected.

4. 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 HVAC 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. 4 and No. 3 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

5. Clear any DTCs set when you disconnected the humidity/in-car temperature sensor.