Air Conditioning (A/C) Clutch

DESCRIPTION
An electromagnetic clutch is energized when the clutch cycling pressure switch closes. The switch is located on the suction accumulator/drier. The closing of the switch completes the circuit to the clutch and draws it into engagement with the compressor driveshaft. When the A/C is engaged, Electronic Pressure Control (EPC) pressure is adjusted to compensate for additional load on the engine.

SYMPTOMS
Failed ON - EPC pressure slightly low with A/C OFF.
Failed OFF - EPC pressure slightly high with A/C ON.

DTC
P1460.