Compressor HVAC: Testing and Inspection

ON-VEHICLE INSPECTION

1. INSPECT COMPRESSOR AND PULLEY




a. Check the operation.
1. Start the engine.
2. Inspect the weight hub.

Standard: The weight hub rotates along with the pulley.




b. Measure the resistance between terminals 1 and 2.

Standard resistance: 10.1 to 11.1 ohms at 25 °C (77 °F)

If the resistance is not as specified, replace the compressor and pulley.