Aerio AWD L4-2.0L (2003)
Evaporator Temperature Sensor / Switch: Description and Operation
A/C Evaporator Inlet Air Temperature Sensor and A/C Evaporator Outlet Air Temperature Sensor Construction
These sensors send the signals of the A/C evaporator inlet and outlet air temperatures to ECM. And, ECM controls the A/C operation as follows.
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ECM calculates the A/C ON/OFF operation temperature by comparing the A/C evaporator inlet air temperature with the A/C evaporator outlet air
temperature. And, ECM controls A/C ON/OFF using the A/C ON/OFF operation temperature.
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In DEF/FOOT or DEF air flow mode, ECM turns off the A/C operation by detecting the A/C evaporator outlet temperature at less than 2.5 °C
(36.5 °F). (The A/C operation come back at more than 4 °C (39.2 °F)).
