Intake Sensor: Description
WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.
Intake Sensor
The intake sensor (2) is located on the evaporator. It converts air temperature after it passes through the evaporator (1) into a resistance value which is then input to the unified meter and A/C amp.
Intake Sensor Circuit