In-Vehicle Temperature Sensor
WARNING: This page is about a different car, the 2006 Mercury Mountaineer and 2006 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The in-vehicle temperature sensor contains a thermistor which measures the in-vehicle air temperature and sends that reading to the EATC module. A hose and elbow is connected between the heater core and evaporator core housing and the in-vehicle temperature sensor. The automatic temperature control sensor hose and elbow takes air from the heater core and evaporator core housing air stream to create a suction in the in-vehicle temperature sensor. The suction draws in-vehicle air into the in-vehicle temperature sensor and across the thermistor.