In-Car Temperature Sensor Test (With Climate Control)

In-car Temperature Sensor Test

NOTE: Before testing, check for HVAC DTCs. How to Troubleshoot the Climate Control System

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 the No. 1 and No. 2 terminals of the in-car temperature sensor with the specifications shown in the graph; the resistance should be within the specifications for whatever the ambient temperature is.

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