Cabin Temperature Sensor / Switch: Description and Operation
The in-car temperature sensor:^ is located in the instrument panel to the right of the steering column.
^ contains a thermistor which measures the in-car air temperature and sends that reading to the EATC module.
^ utilizes a venturi system with an aspirator hose running between the in-car temperature sensor and the plenum chamber.
^ Airflow through the plenum chamber creates a suction through the aspirator hose which draws air from the passenger compartment through the in-car temperature sensor.