Compressor HVAC: Testing and Inspection

AIR CONDITIONING: COMPRESSOR AND MAGNETIC CLUTCH:

INSPECTION

1. INSPECT COMPRESSOR AND MAGNETIC CLUTCH (A/C LOCK SENSOR)






(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:





If the resistance is not as specified, replace the compressor and magnetic clutch.
2. INSPECT COMPRESSOR AND MAGNETIC CLUTCH (A/C COMPRESSOR SOLENOID)






(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:





If the resistance is not as specified, replace the compressor and magnetic clutch.
3. INSPECT COMPRESSOR AND MAGNETIC CLUTCH






(a) Disconnect the connector from the compressor and magnetic clutch.






(b) Disconnect the connector from the magnetic clutch.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:





If the resistance is not as specified, replace the compressor and magnetic clutch.
4. INSPECT MAGNETIC CLUTCH






(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:





If the resistance is not as specified, replace the magnetic clutch.
(b) When connector terminal 1 is connected to the positive (+) battery terminal, check that the following occurs: 1) the magnetic clutch's operating sound can be heard, and 2) the magnetic clutch's hub and rotor lock.
OK:
1) The magnetic clutch's operating sound can be heard.
2) The magnetic clutch's hub and rotor lock.
If the result is not as specified, replace the magnetic clutch.