Compressor Clutch: Testing and Inspection

MAGNET CLUTCH

Trouble Diagnosis Procedure for Magnet Clutch

SYMPTOM: Magnet clutch does not operate when A/C switch and fan control switch are ON.

Inspection Flow:

INSPECTION FLOW

Magnet Clutch Circuit (Steps 1 - 2):

Magnet Clutch Circuit (Steps 3 - 6):

Magnet Clutch Circuit (Steps 7 - 10):

Magnet Clutch Circuit (Steps 11 - 12):

Magnet Clutch Circuit

Electrical Component Inspection

A/C RELAY




Check continuity between terminal Nos. 3 and 5.
If NG, replace relay.




REFRIGERANT PRESSURE SENSOR




Make sure that higher A/C refrigerant pressure results in higher refrigerant pressure sensor output voltage.