Cabin A/C Isolator Solenoid Valve

The cabin A/C isolator solenoid valve is controlled by the PCM during A/C compressor operation. If the A/C request is for cooling of the passenger compartment, the cabin A/C isolator solenoid valve allows refrigerant flow to the cabin Thermostatic Expansion Valve (TXV) and evaporator. If the A/C request is only for cooling of the high voltage battery system, the cabin A/C isolator solenoid valve stops refrigerant flow to the cabin Thermostatic Expansion Valve (TXV) and evaporator.