Compressor Clutch: Description and Operation

CIRCUIT OPERATION

A/C Compressor Clutch
With the engine starter switch in ON, the A/C compressor clutch relay is energized by the engine control module (ECM). The ECM determines when to activate the compressor clutch based on the information received from the A/C pressure switch.

The magnetic clutch connector is a waterproof type.

Magnetic Clutch

Magnetic Clutch:

The compressor is driven by the drive belt from the crank pulley of the engine. If the compressor is activated each time the engine is started, this causes too much load to the engine. The magnetic clutch transmits the power from the engine to the compressor and activates it when the air conditioning is ON. Also, it cuts off the power from the engine to the compressor when the air conditioning is OFF. Refer to Compressor for magnetic clutch repair procedure.