Compressor Clutch: Description and Operation

The compressor clutch components provide a way to drive the compressor. The compressor clutch assembly consists of a stationary electromagnetic coil, hub bearing and pulley assembly and a clutch plate. The compressor clutch and coil assembly are the only serviced parts on the compressor.

When clutch engages the compressor is then driven by the engine serpentine drive belt. The clutch engagement is controlled the heater-A/C mode control switch, a/c pressure transducer, evaporator probe, thermal limiter switch, compressor clutch relay and Powertrain Control Module (PCM).