In-car Temperature Sensor Test

In-car Temperature Sensor Test

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

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

2. Test the 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 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 in-car temperature sensor. Service and Repair