On-Vehicle Inspection

INSPECT COMPRESSOR FOR METALLIC SOUND
1. Check if there is abnormal metallic sound from the compressor when the A/C switch is ON and the compressor operates.
  If abnormal metallic sound is heard, replace the compressor assembly.
INSPECT REFRIGERANT PRESSURE (SEE REFRIGERANT )
INSPECT FOR LEAKAGE OF REFRIGERANT
1. Using a gas leak detector, check for leakage of refrigerant.
  If there is any leakage, replace the compressor assembly.
INSPECT W/PULLEY COMPRESSOR ASSY
1. Check operation of w/pulley compressor assy.
  1. Start the engine.
  2. Inspect the compressor pulley.
    Standard: The compressor shaft rotates along with the pulley
    
    Fig 1: Checking Operation Of W/Pulley Compressor Assy
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Fig 2: Identifying Connector Terminal
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT SOLENOID OF THE EXTERNALLY CHANGEABLE COMPRESSOR
1. Turn the ignition switch off.
2. Disconnect the connector.
3. Measure resistance between terminals 1 and 2.
  Standard resistance: 10 to 11Ω
  
  HINT:
  
  If resistance is not within the specified range, replace the compressor.