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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating / 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 [06/2018 - ]

  4. REMOVE FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 6

  5. 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.
      GTY960316Courtesy 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 2GR-FKS) 
    1. Using pliers, grip the claws of the clip and slide the clip to disconnect the outlet heater water hose.
      GTY790340Courtesy 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 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.
      GTY960384Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. 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.
      GTY790343Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. DISCONNECT SUCTION TUBE SUB-ASSEMBLY B (w/o Sub-cool Accelerator) 
    1. Remove the bolt and rotate the hook connector as shown in the illustration.
      GTY960296Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the suction tube sub-assembly B.
      GTY960297Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the O-ring from the suction tube sub-assembly B.
      NOTE:

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

  10. DISCONNECT AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY (w/o Sub-cool Accelerator) 
    1. Disconnect the air conditioning tube and accessory assembly.
      GTY960298Courtesy 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.

  11. DISCONNECT SUCTION TUBE SUB-ASSEMBLY B (w/ Sub-cool Accelerator) 
    1. Remove the bolt and rotate the hook connector as shown in the illustration.
      GTY790346Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the suction tube sub-assembly B.
      GTY790348Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 2 O-rings from the suction tube sub-assembly B.
      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 

    for TMC Made:

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

    for TMMK Made:

    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 STEERING COLUMN ASSEMBLY 

    for Manual Tilt and Manual Telescopic Steering Column:

    Refer to REMOVAL [10/2019 - 08/2021]

    for Power Tilt and Power Telescopic Steering Column:

    Refer to REMOVAL [10/2019 - 08/2021]

  15. REMOVE INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY 

    Refer to REMOVAL [06/2018 - 08/2021]

  16. REMOVE ECU INTEGRATION BOX RH 

    Refer to PROCEDURE - Step 3

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

    Refer to PROCEDURE - Step 3

  18. REMOVE COOLER (ROOM TEMP. SENSOR) THERMISTOR 

    See step  15

  19. REMOVE ACCELERATOR PEDAL PAD 

    for 2GR-FKS:

    Refer to PROCEDURE - Step 3

    for A25A-FKS:

    Refer to PROCEDURE - Step 3

  20. REMOVE ACCELERATOR PEDAL ASSEMBLY 

    for 2GR-FKS:

    Refer to PROCEDURE - Step 4

    for A25A-FKS:

    Refer to PROCEDURE - Step 4

  21. REMOVE FRONT FLOOR CAUTION PLATE COVER 

    See step  18

  22. REMOVE REAR NO. 3 AIR DUCT 

    See step  19

  23. REMOVE REAR NO. 1 AIR DUCT 

    See step  20

  24. REMOVE REAR NO. 4 AIR DUCT 

    See step  21

  25. REMOVE REAR NO. 2 AIR DUCT 

    See step  22

  26. REMOVE FLOOR CARPET BRACKET RH 

    See step  23

  27. REMOVE FLOOR CARPET BRACKET LH 

    See step  24

  28. REMOVE NO. 1 CONSOLE BOX DUCT 

    See step  25

  29. REMOVE NO. 3 DASH PANEL INSULATOR PAD 

    See step  26

  30. REMOVE 4WD ECU ASSEMBLY (for AWD) 

    Refer to PROCEDURE - Step 3

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

    See step  27

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

    Refer to PROCEDURE - Step 4

  33. REMOVE NO. 1 SIDE DEFROSTER NOZZLE DUCT 

    See step  30

  34. DISCONNECT INSTRUMENT PANEL WIRE 
    1. Disconnect each connector.
      GTY796946Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Earth Wire *b Connector Holder
      *c Relay Block Holder - -
      Connector Bolt
      Nut - -
    2. Remove the bolt and disconnect the relay block holder.
    3. Remove the 4 bolts and disconnect the 4 earth wires.
    4. Remove the 2 nuts and disconnect the connector holder.
    5. Disengage each clamp.
    6. 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.
      GTY780472Courtesy 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.

    7. Disengage each clamp to separate the instrument panel wire.
  35. REMOVE NO. 1 INSTRUMENT PANEL BRACE SUB-ASSEMBLY 

    See step  32

  36. REMOVE NO. 2 INSTRUMENT PANEL BRACE SUB-ASSEMBLY 
    1. w/ PTC Heater:
      1. Remove the bolt and disconnect the earth wire.
        GTY816433Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *A w/ PTC Heater
    2. Disengage each clamp.
    3. Remove the bolt, screw, nut and No. 2 instrument panel brace sub-assembly.
      GTY822344Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Screw
      Nut
  37. 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. Turn back the front floor mat as shown in the illustration.
      GTY830625Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the drain cooler hose.
      GTY826099Courtesy 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.

    3. Remove the cooler unit drain hose grommet.
      GTY790406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the 2 hole plugs.
      GTY790425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the 4 bolts (A).
      GTY830705Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt (A) Bolt (B)
      Nut - -
    6. Remove the bolt (B) and disconnect the brake pedal assembly.
    7. Remove the nut.
    8. Disengage each clamp.
      GTY820860Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A w/o Seat Heater *B w/ Seat Heater
      Remove in this Direction - -
    9. Disconnect each connector.
    10. Remove the instrument panel reinforcement assembly with air conditioner unit assembly as shown in the illustration.
    11. Disengage the claw and 2 guides to disconnect the ID code box (immobiliser code ECU) as shown in the illustration.
      GTY808133Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
  38. REMOVE AIR CONDITIONER UNIT ASSEMBLY 

    See step  35

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