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Home >> Infiniti >> 2009 >> M35 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 104 (Automatic Air Conditioner) >> Refrigeration System >> Refrigerant Cycle >> Freeze Protection

Freeze Protection

WARNING: This page is about a different car, the 2008 Infiniti M45 and 2008 Infiniti M35. However, it is still accessible from the selected car via links, so may be relevant.

To prevent evaporator frozen up, the evaporator air temperature is monitored, and the voltage signal to the unified meter and A/C amp. will make the A/C relay go OFF and stop the compressor.