Low Temperature Protection Control
WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
The front air control will turn the compressor ON or OFF as determined by a signal detected by the intake sensor and the ambient sensor.
When intake air temperature is higher than 3.5°C (38.3°F), the compressor turns ON. The compressor turns OFF when intake air temperature is lower than 2.5°C (36.5°F).