Do you have access to Mitchell1 Prodemand? If you are willing to share user/password (we can pay $250), please get in contact with us ASAP: email operation-charm [[at]] tuta.io or click to submit anonymously. (This is the last day we'll be asking)
Ambient Temperature Sensor / Switch HVAC: Testing and Inspection
Outside Air Temperature Sensor Test
NOTE: Before testing, check for HVAC DTCs How To Troubleshoot The Heating And A/C Systems.
1. Remove the outside air temperature sensor Service and Repair.
2. Dip the sensor in ice water, and measure the resistance. Then pour warm water on the sensor, and check for a change in resistance.
3. Compare the resistance reading between the terminals No. 1 and No. 2 of the outside air 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 outside air temperature sensor Service and Repair.