Air Conditioning Unit Removal

Vehicle Interior. Corolla. Zre142 Aze141
Heating Air Conditioning. Corolla. Zre142 Aze141

  1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM

  2. REMOVE FRONT WIPER ARM HEAD CAP

  3. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH

  4. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY RH

  5. REMOVE HOOD TO COWL TOP SEAL

  6. REMOVE CENTER NO. 1 COWL TOP VENTILATOR LOUVER

  7. REMOVE COWL TOP VENTILATOR LOUVER LH

  8. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

  9. REMOVE OUTER COWL TOP PANEL (for TMC Made)

  10. REMOVE OUTER COWL TOP PANEL (except TMC Made)

  11. DISCONNECT SUCTION PIPE SUB-ASSEMBLY

  12. DISCONNECT AIR CONDITIONING TUBE ASSEMBLY

  13. DISCONNECT HEATER OUTLET WATER HOSE

  14. DISCONNECT HEATER INLET WATER HOSE

  15. REMOVE POWER STEERING ECU ASSEMBLY (for 2AZ-FE)

  16. REMOVE POWER STEERING ECU ASSEMBLY (for 2ZR-FE)

  17. REMOVE STEERING POST ASSEMBLY

  18. REMOVE LOWER INSTRUMENT PANEL SUB-ASSEMBLY

  19. REMOVE SMART KEY ECU ASSEMBLY (w/ Smart Key System)

  20. REMOVE NO. 1 AIR DUCT SUB-ASSEMBLY

  21. REMOVE LOWER DEFROSTER NOZZLE ASSEMBLY

  22. REMOVE CENTER INSTRUMENT PANEL TO COWL BRACE

  23. REMOVE REAR NO. 2 AIR DUCT (w/ Rear Air Duct)

  24. REMOVE REAR NO. 3 AIR DUCT (w/ Rear Air Duct)

  25. REMOVE NO. 1 INSTRUMENT PANEL BRACE SUB-ASSEMBLY (for Manual Air Conditioning System)

  26. REMOVE NO. 1 INSTRUMENT PANEL BRACE SUB-ASSEMBLY (for Automatic Air Conditioning System)

  27. REMOVE NO. 2 INSTRUMENT PANEL BRACE SUB-ASSEMBLY

  28. REMOVE HEATER COVER (w/ Cover)

  29. REMOVE REAR NO. 1 AIR DUCT (w/ Rear Air Duct)

  30. REMOVE INSTRUMENT PANEL REINFORCEMENT ASSEMBLY (for Manual Air Conditioning System)

  31. REMOVE INSTRUMENT PANEL REINFORCEMENT ASSEMBLY (for Automatic Air Conditioning System)

  32. REMOVE AIR CONDITIONING UNIT

  33. REMOVE NO. 2 AIR DUCT SUB-ASSEMBLY

  34. REMOVE BLOWER ASSEMBLY (w/o PTC Heater)

  35. REMOVE BLOWER ASSEMBLY (w/ PTC Heater)

Air Conditioning Unit -- Removal


HINT:
Before disconnecting the cable, set the air conditioning control switch to DEF-MODE. (for Automatic Air Conditioning System)


1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM
  1. Start up the engine.

  1. Turn the A/C switch on.

  1. Operate the cooler compressor at an engine speed of approximately 1000 rpm for 5 to 6 minutes to circulate the refrigerant. This causes most of the compressor oil from the various components of the A/C system to collect in the A/C compressor.

  1. Stop the engine.

  1. Recover the refrigerant from the A/C system using a refrigerant recovery unit.



2. REMOVE FRONT WIPER ARM HEAD CAP


    Corolla. Zre142 Aze141
  1. Remove the 2 front wiper arm head caps.



3. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH


    Corolla. Zre142 Aze141
  1. Remove the nut and the front wiper arm and blade assembly LH.



4. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY RH


    Corolla. Zre142 Aze141
  1. Remove the nut and the front wiper arm and blade assembly RH.



5. REMOVE HOOD TO COWL TOP SEAL


    Corolla. Zre142 Aze141
  1. Disengage the 7 clips and remove the hood to cowl top seal.



6. REMOVE CENTER NO. 1 COWL TOP VENTILATOR LOUVER


    Corolla. Zre142 Aze141
  1. Disengage the clip and 14 claws, and remove the center No. 1 cowl top ventilator louver.



7. REMOVE COWL TOP VENTILATOR LOUVER LH


    Corolla. Zre142 Aze141
  1. Disengage the clip and 8 claws, and remove the cowl top ventilator louver LH.



8. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY


    Corolla. Zre142 Aze141
  1. Disconnect the connector.

  1. Remove the 2 bolts and the windshield wiper motor and link assembly.



9. REMOVE OUTER COWL TOP PANEL (for TMC Made)


    Corolla. Zre142 Aze141
  1. Disengage the clamp and bend the water guard plate RH as shown in the illustration.



    Corolla. Zre142 Aze141
  1. Disengage the clamp.

  1. Remove the 12 bolts and outer cowl top panel.



10. REMOVE OUTER COWL TOP PANEL (except TMC Made)


    Corolla. Zre142 Aze141
  1. Disengage the clamp and bend the water guard plate RH as shown in the illustration.



    Corolla. Zre142 Aze141
  1. Disengage the clamp and bend the No. 1 heater air duct splash shield seal.



    Corolla. Zre142 Aze141
  1. Disengage the clamp.

  1. Remove the 12 bolts and outer cowl top panel.



11. DISCONNECT SUCTION PIPE SUB-ASSEMBLY


    Corolla. Zre142 Aze141
  1. Remove the bolt and slide the hook connector.

  1. Disconnect the suction pipe sub-assembly.

  1. Remove the O-ring from the suction hose sub-assembly.

    NOTICE:
    Seal the openings of the disconnected parts using vinyl tape to prevent entry of moisture and foreign matter.


12. DISCONNECT AIR CONDITIONING TUBE ASSEMBLY
  1. Disconnect the air conditioning tube assembly.

  1. Remove the O-ring from the air conditioning tube assembly.

    NOTICE:
    Seal the openings of the disconnected parts using vinyl tape to prevent entry of moisture and foreign matter.


13. DISCONNECT HEATER OUTLET WATER HOSE


    Corolla. Zre142 Aze141
  1. Using pliers, grip the claws of the clip and slide the clip to disconnect the heater outlet water hose.

    NOTICE:
    1. Do not apply excessive force to the heater outlet water hose.
    2. Prepare a drain pan or a piece of cloth in case the coolant leaks.


14. DISCONNECT HEATER INLET WATER HOSE
HINT:
Disconnection procedure for the heater inlet water hose is the same as that for the heater outlet water hose.


15. REMOVE POWER STEERING ECU ASSEMBLY (for 2AZ-FE)
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16. REMOVE POWER STEERING ECU ASSEMBLY (for 2ZR-FE)
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17. REMOVE STEERING POST ASSEMBLY
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18. REMOVE LOWER INSTRUMENT PANEL SUB-ASSEMBLY
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19. REMOVE SMART KEY ECU ASSEMBLY (w/ Smart Key System)
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20. REMOVE NO. 1 AIR DUCT SUB-ASSEMBLY


    Corolla. Zre142 Aze141
  1. Remove the 2 nuts and the No. 1 air duct sub-assembly.



21. REMOVE LOWER DEFROSTER NOZZLE ASSEMBLY


    Corolla. Zre142 Aze141
  1. Disengage the 6 claws and remove the lower defroster nozzle assembly.



22. REMOVE CENTER INSTRUMENT PANEL TO COWL BRACE


    Corolla. Zre142 Aze141
  1. Remove the 2 bolts and the center instrument panel to cowl brace.



23. REMOVE REAR NO. 2 AIR DUCT (w/ Rear Air Duct)


    Corolla. Zre142 Aze141
  1. Remove the clip.

  1. Turn back the floor carpet.



    Corolla. Zre142 Aze141
  1. Disengage the 2 claws and remove the rear No. 2 air duct.



24. REMOVE REAR NO. 3 AIR DUCT (w/ Rear Air Duct)


    Corolla. Zre142 Aze141
  1. Remove the clip.

  1. Turn back the floor carpet.



    Corolla. Zre142 Aze141
  1. Disengage the 2 claws and remove the rear No. 3 air duct.



25. REMOVE NO. 1 INSTRUMENT PANEL BRACE SUB-ASSEMBLY (for Manual Air Conditioning System)


  1. for TMC made:



      Corolla. Zre142 Aze141
    1. Disconnect the connector.

    2. Disengage each clamp.



  1. except TMC made:



      Corolla. Zre142 Aze141
    1. Disconnect the connector.

    2. Disengage each clamp.



    Corolla. Zre142 Aze141
  1. Remove the screw.

  1. Remove the bolt, the nut, and the No. 1 instrument panel brace sub-assembly.



26. REMOVE NO. 1 INSTRUMENT PANEL BRACE SUB-ASSEMBLY (for Automatic Air Conditioning System)


  1. for TMC Made:



      Corolla. Zre142 Aze141
    1. Disengage each clamp.



  1. except TMC made:



      Corolla. Zre142 Aze141
    1. Disengage each clamp.



    Corolla. Zre142 Aze141
  1. Remove the screw.

  1. Remove the bolt, the nut, and the No. 1 instrument panel brace sub-assembly.



27. REMOVE NO. 2 INSTRUMENT PANEL BRACE SUB-ASSEMBLY


  1. for TMC Made:



      Corolla. Zre142 Aze141
    1. Disengage each clamp.



  1. except TMC made:



      Corolla. Zre142 Aze141
    1. Disengage each clamp.



    Corolla. Zre142 Aze141
  1. Remove the screw.

  1. Remove the bolt, the nut, and the No. 2 instrument panel brace sub-assembly.



28. REMOVE HEATER COVER (w/ Cover)


    Corolla. Zre142 Aze141
  1. Disengage the 4 claws and remove the heater cover.



29. REMOVE REAR NO. 1 AIR DUCT (w/ Rear Air Duct)


    Corolla. Zre142 Aze141
  1. Disengage the 4 claws and remove the rear No. 1 air duct.



30. REMOVE INSTRUMENT PANEL REINFORCEMENT ASSEMBLY (for Manual Air Conditioning System)
  1. Disconnect the connector.



  1. Disengage each clamp and the wire harness.


    Corolla. Zre142 Aze141.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning Unit  Removal

  1. Disconnect each connector.

  1. Disengage each clamp.

  1. Remove the 12 bolts, and disengage the wire harness and junction block.



  1. Disengage the cooler drain hose.


    Corolla. Zre142 Aze141.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning Unit  Removal



  1. Remove the 7 bolts.


    Corolla. Zre142 Aze141.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning Unit  Removal



    Corolla. Zre142 Aze141
  1. Remove the 3 bolts and the instrument panel reinforcement assembly.



31. REMOVE INSTRUMENT PANEL REINFORCEMENT ASSEMBLY (for Automatic Air Conditioning System)


  1. Disengage each clamp and the wire harness.


    Corolla. Zre142 Aze141.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning Unit  Removal

  1. Disconnect each connector.

  1. Disengage each clamp.

  1. Remove the 12 bolts, and disengage the wire harness and junction block.



  1. Disengage the cooler drain hose.


    Corolla. Zre142 Aze141.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning Unit  Removal



  1. Remove the 7 bolts.


    Corolla. Zre142 Aze141.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning Unit  Removal



    Corolla. Zre142 Aze141
  1. Remove the 3 bolts and the instrument panel reinforcement assembly.



32. REMOVE AIR CONDITIONING UNIT


    Corolla. Zre142 Aze141
  1. Remove the bolt, the nut, and the air conditioning unit.

    NOTICE:
    1. Be sure to support the air conditioning unit assembly when removing it because failure to do so may cause the bracket of the air conditioning unit assembly to break.
    2. When disassembling the air conditioning unit, eliminate static electricity by touching the vehicle body to prevent the components from being damaged.


33. REMOVE NO. 2 AIR DUCT SUB-ASSEMBLY


    Corolla. Zre142 Aze141
  1. Disengage the 2 claws and remove the No. 2 air duct sub-assembly.



34. REMOVE BLOWER ASSEMBLY (w/o PTC Heater)


  1. for Automatic Air Conditioning System:



      Corolla. Zre142 Aze141
    1. Disconnect the connector.

  1. Remove the 3 screws and the blower assembly.



35. REMOVE BLOWER ASSEMBLY (w/ PTC Heater)


    Corolla. Zre142 Aze141
  1. Disengage each clamp.



    Corolla. Zre142 Aze141
  1. Remove the screw and disengage the quick heater connector.

  1. for Automatic Air Conditioning System:

    1. Disconnect the connector.

  1. Remove the 3 screws and the blower assembly.