Compressor/Magnetic Clutch KL Engine

System Operation
1. Signals from the blower switch and ACS are sent to the A/C amplifier.
2. The evaporator temperature sensor resistance changes as the evaporator's temperature changes.
3. The A/C amplifier monitors the evaporator temperature sensor's resistance changes.
4. The A/C amplifier signals the PCME to turn ON or OFF the magnetic clutch based on the evaporator's temperature. This protects the evaporator from freezing.
5. The PCME controls the magnetic clutch by turning on and off the A/C relay.
6. To help liquefy refrigerant, the condenser fan rotates to increase airflow through the condenser when the A/C compressor is on.