Grand Voyager L4-2.4L DOHC (1996)
Evaporator Temperature Sensor / Switch: Description and Operation
DESCRIPTION
The probe monitors the temperature of the refrigerant after expansion.
OPERATION
The probe prevents evaporator freeze-up by signaling the Powertrain Control Module to cycle the compressor ON and OFF. It is a sealed unit and
cannot be adjusted or repaired. It must be replaced if found defective.
CIRCUIT OPERATION
The evaporator temperature sensor is used to monitor the temperature of the evaporator to prevent freeze up. This input is used to control the
operation of the A/C compressor clutch.
Circuit C21 is the feed from the HVAC control to the sensor.
Circuit C57 is used to supply a common ground path for the sensor back to the control. This circuit is spliced and provides a ground path for the
other sensors.
