Air Conditioning Unit Disassembly

Heater & Air Conditioning System. Lexus Is250, Is220D. Gse20 Ale20
Air Conditioning. Lexus Is250, Is220D. Gse20 Ale20

  1. REMOVE AIR OUTLET CONTROL SERVO MOTOR

  2. REMOVE AIR MIX CONTROL SERVO MOTOR

  3. REMOVE COOLER EXPANSION VALVE

  4. REMOVE AIR CONDITIONING HARNESS ASSEMBLY

  5. REMOVE AIR OUTLET CONTROL SERVO MOTOR

  6. REMOVE AIR MIX CONTROL SERVO MOTOR

  7. REMOVE HEATER RADIATOR UNIT SUB-ASSEMBLY

  8. REMOVE NO. 1 COOLER EVAPORATOR SUB-ASSEMBLY

Air Conditioning Unit -- Disassembly



1. REMOVE AIR OUTLET CONTROL SERVO MOTOR


    Lexus Is250, Is220D. Gse20 Ale20
  1. Disconnect the connector.

  1. Remove the 3 screws and air outlet control servo motor.



2. REMOVE AIR MIX CONTROL SERVO MOTOR


    Lexus Is250, Is220D. Gse20 Ale20.Air Conditioning.Air Conditioning System.Air Conditioning Unit  Disassembly
  1. Remove the 4 clamps and connector, and disconnect the wire harness.



    Lexus Is250, Is220D. Gse20 Ale20
  1. Remove the 3 screws and heater piping cover.



    Lexus Is250, Is220D. Gse20 Ale20
  1. Remove the 3 screws and air mix control servo motor.



3. REMOVE COOLER EXPANSION VALVE


    Lexus Is250, Is220D. Gse20 Ale20
  1. Remove the packing from the air conditioning tube assembly.



    Lexus Is250, Is220D. Gse20 Ale20
  1. Using a hexagon wrench 4 mm, remove the 2 hexagon bolts and air conditioning tube assembly.

  1. Remove the 2 O-rings from the air conditioning tube assembly.



    Lexus Is250, Is220D. Gse20 Ale20
  1. Remove the cooler expansion valve from the No. 1 cooler evaporator sub-assembly.



4. REMOVE AIR CONDITIONING HARNESS ASSEMBLY


    Lexus Is250, Is220D. Gse20 Ale20.Air Conditioning.Air Conditioning System.Air Conditioning Unit  Disassembly
  1. Remove the 2 connectors and 5 clamps, and then disconnect the wire harness.

  1. Remove the air conditioning harness assembly as shown in the illustration.



5. REMOVE AIR OUTLET CONTROL SERVO MOTOR


    Lexus Is250, Is220D. Gse20 Ale20
  1. Remove the 2 screws and the air duct.



    Lexus Is250, Is220D. Gse20 Ale20
  1. Remove the 4 screws and the servo motor plate.



    Lexus Is250, Is220D. Gse20 Ale20
  1. Remove the 2 screws.

  1. Release the claw and remove the air outlet control servo motor from the servo motor plate.



6. REMOVE AIR MIX CONTROL SERVO MOTOR


    Lexus Is250, Is220D. Gse20 Ale20
  1. Remove the 2 screws.

  1. Release the claw and remove the air mix control servo motor from the servo motor plate.



7. REMOVE HEATER RADIATOR UNIT SUB-ASSEMBLY


    Lexus Is250, Is220D. Gse20 Ale20
  1. Remove the screw and clamp.

  1. Remove the heater radiator unit sub-assembly.



8. REMOVE NO. 1 COOLER EVAPORATOR SUB-ASSEMBLY


    Lexus Is250, Is220D. Gse20 Ale20
  1. Remove the 5 screws.

  1. Release the 3 claws and remove the air duct.



    Lexus Is250, Is220D. Gse20 Ale20
  1. Remove the No. 1 cooler evaporator sub-assembly from the air duct.

  1. Remove the 2 O-rings from the No. 1 cooler evaporator sub-assembly.