Compressor Clutch: Testing and Inspection

ON-VEHICLE INSPECTION

1. MAKE THESE VISUAL CHECKS:
a. Leakage of grease from the clutch bearing.
b. Signs of oil on the pressure plate or rotor. Repair or replace, as necessary.





2. INSPECT MAGNETIC CLUTCH BEARING FOR NOISE
a. Start the engine.
b. Check for abnormal noise from near the compressor when the A/C switch is OFF.
If abnormal noise is being emitted, replace the magnetic clutch.

3. INSPECT MAGNETIC CLUTCH
a. Disconnect the connector from the magnetic clutch.
b. Connect the positive (+) lead from the battery to the terminal 4 and the negative (-) lead to the body ground.
c. Check that the magnetic clutch is energized. If operation is not as specified, replace the magnetic clutch.