Compressor HVAC: Testing and Inspection

INSPECT W/PULLEY COMPRESSOR ASSY




a. Check the operation.
1. Start the engine.
2. Inspect the compressor pulley.
Standard: The compressor shaft rotates along with the pulley




b. Inspect w/pulley compressor assy.
1. Disconnect the connector.




2. Measure the resistance according to the value(s) in the table.




c.
1. When the refrigerant amount and congestion of A/C cycle cannot be checked by the condition of the sight glass and manifold gauge, connect the positive battery cable to terminal 1 of the connector and the negative battery cable to the terminal 2 of the connector, and then check if cold air comes out while setting the blower switch to the "LO" position.




W/PULLEY COMPRESSOR ASSY
a. Inspect w/pulley compressor assy.
1. Measure the resistance between terminals 1 and 2.

Standard resistance: 160 to 320 Ohm at 20°C (68°F)

If the value is not as specified, replace the w/pulley compressor assy.