In Dynamic Chamber

1. Unplug sensor connector.
2. Check resistance across sensor terminals.
3. Check that resistance corresponds to these values:

OHMS AIR TEMP.

29.7 - 36.3 25°C / 77°F
3.3 - 3.7 85°C / 185°F

4. As an alternate method, remove sensor. Heat sensor and a thermometer with a lamp.
5. Check that resistance varies according to the table above.
6. If not as specified, replace sensor.