Low Temperature Protection Control
WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
Auto amp. will turn the compressor ON or OFF as determined by a signal detected by ambient sensor.
When ambient temperatures are greater than -2°C (28°F), the compressor turns ON. The compressor turns OFF when ambient temperatures are less than -5°C (23°F).