Circuit Operation

General Description
The circuit consists of pressure switch, A/C switch, electronic thermostat, blower motor, fan switch, magnetic clutch of A/C compressor, blower resistor and relay.
The operation of A/C system is controlled by turning A/C switch on and off. Electronic thermostat and PCM can stop operation of A/C temporarily by disconnecting magnetic clutch under the predetermined conditions to adjust room temperature, preventing abnormal rise of engine coolant and reduce engine load while A/C is in operation.