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Home >> Toyota >> 2020 >> Avalon Limited >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning System (Service Information) (1 Of 2) >> AIR CONDITIONING UNIT (for Gasoline Model) >> Removal [08/2020 - 08/2021] >> Procedure

Removal [08/2020 - 08/2021]: Procedure

  1. PRECAUTION 
    NOTE:

    Make sure to select face mode before disconnecting the cable from the negative (-) battery terminal.

  2. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM 

    See step  1

  3. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY 

    Refer to REMOVAL [04/2018 -]

  4. REMOVE FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 6

  5. DISCONNECT OUTLET HEATER WATER HOSE (for 2GR-FKS) 
    1. Using pliers, grip the claws of the clip and slide the clip to disconnect the outlet heater water hose.
      GTY920000Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Do not apply excessive force to the outlet heater water hose.
      • Prepare a drain pan or cloth in case the coolant leaks.
  6. DISCONNECT OUTLET HEATER WATER HOSE (for A25A-FKS) 
    1. Using pliers, grip the claws of the clip and slide the clip to disconnect the outlet heater water hose.
      GTY989194Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Do not apply excessive force to the outlet heater water hose.
      • Prepare a drain pan or cloth in case the coolant leaks.
  7. DISCONNECT INLET HEATER WATER HOSE (for 2GR-FKS) 
    1. Using pliers, grip the claws of the clip and slide the clip to disconnect the inlet heater water hose.
      NOTE:
      • Do not apply excessive force to the inlet heater water hose.
      • Prepare a drain pan or cloth in case the coolant leaks.
      GTY919999Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. DISCONNECT INLET HEATER WATER HOSE (for A25A-FKS) 
    1. Using pliers, grip the claws of the clip and slide the clip to disconnect the inlet heater water hose.
      NOTE:
      • Do not apply excessive force to the inlet heater water hose.
      • Prepare a drain pan or cloth in case the coolant leaks.
      GTY925429Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. DISCONNECT NO. 2 AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY (for 2GR-FKS) 
    1. Remove the bolt and rotate the hook connector as shown in the illustration.
      GTY919996Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the No. 2 air conditioning tube and accessory assembly.
      GTY919982Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 2 O-rings from the No. 2 air conditioning tube and accessory assembly.
      NOTE:

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

  10. DISCONNECT SUCTION PIPE SUB-ASSEMBLY (for A25A-FKS) 
    1. Remove the bolt and rotate the hook connector as shown in the illustration.
      GTY988889Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the suction pipe sub-assembly.
      GTY989198Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the O-ring from the suction pipe sub-assembly.
      NOTE:

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

  11. DISCONNECT AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY (for A25A-FKS) 
    1. Disconnect the air conditioning tube and accessory assembly.
      GTY989207Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the O-ring from the air conditioning tube and accessory assembly.
      NOTE:

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

  12. REMOVE FRONT SEAT ASSEMBLY LH 

    Refer to REMOVAL [08/2020 - 08/2021]

  13. REMOVE FRONT SEAT ASSEMBLY RH 

    HINT: 

    Use the same procedure as for the LH side.

  14. REMOVE TRANSMISSION FLOOR SHIFT ASSEMBLY 

    Refer to REMOVAL [04/2018 -]

  15. REMOVE STEERING COLUMN ASSEMBLY 

    for Manual Tilt and Manual Telescopic Steering Column:

    Refer to REMOVAL [04/2018 - 08/2021]

    for Power Tilt and Power Telescopic Steering Column:

    Refer to REMOVAL [04/2018 - 08/2021]

  16. REMOVE INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY 

    Refer to REMOVAL [04/2018 - 08/2021]

  17. REMOVE ECU INTEGRATION BOX RH 

    Refer to PROCEDURE - Step 3

  18. REMOVE STEREO COMPONENT EQUALIZER ASSEMBLY (w/ Active Noise Control System) 

    Refer to PROCEDURE - Step 3

  19. REMOVE DCM (TELEMATICS TRANSCEIVER) WITH BRACKET 

    Refer to PROCEDURE - Step 10

  20. REMOVE NO. 1 CLEARANCE WARNING BUZZER (w/ Intelligent Parking Assist System) 

    Refer to PROCEDURE - Step 9

  21. REMOVE DRIVING SUPPORT ECU ASSEMBLY 

    Refer to PROCEDURE - Step 2

  22. REMOVE COOLER (ROOM TEMP. SENSOR) THERMISTOR 

    See step  19

  23. REMOVE ACCELERATOR PEDAL PAD 

    for 2GR-FKS:

    Refer to PROCEDURE - Step 3

    for A25A-FKS:

    Refer to PROCEDURE - Step 3

  24. REMOVE ACCELERATOR PEDAL 

    for 2GR-FKS:

    Refer to PROCEDURE - Step 4

    for A25A-FKS:

    Refer to PROCEDURE - Step 4

  25. REMOVE REAR NO. 2 AIR DUCT 

    See step  22

  26. REMOVE REAR NO. 1 AIR DUCT 

    See step  23

  27. REMOVE REAR NO. 4 AIR DUCT 

    See step  24

  28. REMOVE REAR NO. 3 AIR DUCT 

    See step  25

  29. REMOVE FLOOR CARPET BRACKET RH 

    See step  26

  30. REMOVE FLOOR CARPET BRACKET LH 

    See step  27

  31. REMOVE NO. 1 CONSOLE BOX DUCT 

    See step  28

  32. REMOVE NO. 3 DASH PANEL INSULATOR PAD 

    See step  29

  33. REMOVE NO. 1 INSTRUMENT PANEL BRACE SUB-ASSEMBLY 
    1. Remove the bolt and disconnect the earth wire.
      GTY845317Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Earth Wire
    2. Disengage each clamp.
    3. Remove the bolt, screw, nut and No. 1 instrument panel brace sub-assembly.
      GTY886162Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Screw
      Nut
  34. REMOVE NO. 2 INSTRUMENT PANEL BRACE SUB-ASSEMBLY 

    See step  31

  35. REMOVE NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY 

    See step  32

  36. REMOVE 4WD ECU ASSEMBLY (for AWD) 

    Refer to PROCEDURE - Step 3

  37. REMOVE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU 

    Refer to PROCEDURE - Step 3

  38. REMOVE INSTRUMENT PANEL REINFORCEMENT ASSEMBLY WITH AIR CONDITIONER UNIT ASSEMBLY 
    NOTE:
    • Be sure to support the air conditioner unit assembly when removing it. Failure to do so may cause the bracket of the air conditioner unit assembly to break.
    • When disassembling the air conditioner unit assembly, eliminate static electricity by touching the vehicle body to prevent the components from being damaged.
    1. Disconnect the connector.
      GTY866682Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Earth Wire *b Connector Holder
      Connector Bolt
      Nut - -
    2. Remove the 3 bolts and disconnect the 3 earth wires.
    3. Remove the 2 nuts and disconnect the connector holder.
    4. Disengage each clamp.
    5. Push down the part (A) in the direction indicated by the arrow (1), to release the lock, and then move the lock lever in the direction indicated by the arrow (2) shown in the illustration to disconnect the connector.
      GTY942307Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Release (1)
      Move in this Direction (2)
      NOTE:

      When disconnecting any airbag connector, take care not to damage the airbag wire harness.

    6. Disconnect the connector.
    7. Disengage each clamp to separate the instrument panel wire.
    8. Turn back the front floor mat as shown in the illustration.
      GTY925559Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Disconnect the drain cooler hose.
      GTY932077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Cooler Unit Drain Hose Grommet
      NOTE:

      If the drain cooler hose is disconnected from the cooler unit drain hose grommet, make sure to replace the cooler unit drain hose grommet with a new one. Failure to do so may lead to water ingress.

    10. Remove the cooler unit drain hose grommet.
      GTY925560Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    11. Remove the 2 hole plugs.
      GTY925568Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    12. Remove the 3 bolts.
      GTY925567Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    13. Remove the 4 bolts (A).
      GTY870953Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt (A) Bolt (B)
      Nut - -
    14. Remove the bolt (B) and disconnect the brake pedal assembly.
    15. Remove the nut.
    16. Disengage each clamp.
      GTY887420Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction - -
    17. Disconnect each connector.
    18. Remove the instrument panel reinforcement assembly with air conditioner unit assembly as shown in the illustration.
  39. REMOVE AIR CONDITIONER UNIT ASSEMBLY 

    See step  36

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