Clutch

COMPRESSOR CLUTCH CIRCUIT OPERATION FOR TESTING
Operation of the A/C compressor clutch is dependent on the ambient temperature and signals from the engine computer. The engine computer will interrupt A/C compressor operation when certain conditions exist. The A/C compressor clutch can be shut off (or kept off) for several seconds at engine start-up, at high engine speeds, during acceleration, when the engine coolant temperature exceeds a predetermined temperature and during low engine idle conditions.

SELF TEST-CLUTCH CONTROL
Follow the diagnostic procedures in the following illustrations and, if necessary, refer to the Quick Tests and Pinpoint Tests to correct an inoperative compressor clutch condition. The ambient temperature must also be above approximately 10°C(50°F) for the A/C compressor to operate.

Circuit Diagram:

A1 - A5:

A6 - A11:

A12 - A14:

A15 - A17: