Operation CHARM: Car repair manuals for everyone.
Home >> Lexus >> 2007 >> IS 250 AWD V6-2.5L (4GR-FSE) >> Repair and Diagnosis >> Heating and Air Conditioning >> Compressor HVAC >> Testing and Inspection
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Compressor HVAC: Testing and Inspection

INSPECTION




1. INSPECT A/C COMPRESSOR




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

If the resistance is not as specified, replace the A/C compressor.




2. INSPECT MAGNETIC CLUTCH




a. Measure the resistance of the connector.

If the resistance is not as specified, replace the magnetic clutch.

b. When connector terminal A1 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.




3. INSPECT A/C COMPRESSOR (LOCK SENSOR)




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

If the resistance is not as specified, replace the A/C compressor.




4. INSPECT A/C COMPRESSOR (SOLENOID)




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

If the resistance is not as specified, replace the A/C compressor.
pro multis · About Operation CHARM