Focus L4-2.0L (2009)
Evaporator Temperature Sensor / Switch: Description and Operation
Climate Control
A/C Evaporator Discharge Air Temperature Sensor
The A/C evaporator discharge air temperature sensor contains a thermistor which receives a reference voltage from the HVAC module. The thermistor
then varies the resistance to the reference voltage based on the evaporator discharge air temperature. The HVAC module interprets this resistance as the
evaporator discharge air temperature.
The A/C evaporator discharge air temperature sensor is located on the RH side of the heater core and evaporator core housing above the heater core tube
cover.
