Evaporator Temperature Sensor
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 Jaguar XKR, 2009 Jaguar XK8, 2008 Jaguar XKR, 2008 Jaguar XK8, and 2007 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.
The evaporator temperature sensor is a negative temperature coefficient (NTC) thermistor that provides the automatic temperature control (ATC) module with a temperature signal from the downstream side of the evaporator. The evaporator temperature sensor is mounted directly onto the evaporator matrix fins.
The automatic temperature control (ATC) module uses the input from the evaporator temperature sensor to control the load of the air conditioning (A/C) compressor and thus the operating temperature of the evaporator.