Cabin Temperature Sensor / Switch: Testing and Inspection

Checking inside air temp sensor
- Bridge evaporator air sensor terminals, on evaporator
- Remove plus on control head.




Resistance Chart
- measure resistance on test plug T4c, between terminals S and A (blue, blue/white wires), compare to chart.


Note: Connector T4c is near passenger kick panel.

Fan motor for sensor can be checked with smoke. Motor runs when ignition is on.