July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
Magnet Clutch Control
WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.
The ECM controls compressor operation using input signals from the refrigerant pressure sensor, throttle position sensor and auto amp.
Fig 1: Receiving Input Signals From Various A/C Components