AIR CONDITIONING UNIT REMOVAL

CAUTION / NOTICE / HINT

Tech Tips

If the air conditioning radiator damper servo sub-assembly is to be removed and installed or replaced, make sure to set the temperature setting to MAX COLD before turning the power switch off and disconnecting the cable from the negative (-) auxiliary battery terminal.

PROCEDURE


  1. PRECAUTION

    Note

    Make sure to perform initialization after replacing the air conditioning radiator damper servo sub-assembly. If initialization is not performed, the air conditioning unit assembly will not perform properly as the air conditioning amplifier assembly will not be able to recognize the position of the air conditioning radiator damper sub-assembly.

  2. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM (for HFC-134a(R134a))

    Click here

  3. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM (for HFO-1234yf(R1234yf))

    Click here

  4. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

    Click here

  5. DISCONNECT OUTLET HEATER WATER HOSE A


    1. B004G2S

      Using pliers, grip the claws of the clip and slide the clip to disconnect the outlet heater water hose A.

      Note


      • Do not apply excessive force to the outlet heater water hose A.

      • Prepare a drain pan or cloth in case the coolant leaks.

  6. DISCONNECT INLET HEATER WATER HOSE A


    1. B004G4I

      Using pliers, grip the claws of the clip and slide the clip to disconnect the inlet heater water hose A.

      Note


      • Do not apply excessive force to the inlet heater water hose A.

      • Prepare a drain pan or cloth in case the coolant leaks.

  7. DISCONNECT SUCTION PIPE SUB-ASSEMBLY


    1. B004EQP

      Remove the bolt and rotate the hook connector as shown in the illustration.

    2. B004ECM

      Disconnect the suction pipe sub-assembly.

    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.

  8. DISCONNECT COOLER REFRIGERANT LIQUID PIPE A


    1. B004FAQ

      Disconnect the cooler refrigerant liquid pipe A.

    2. Remove the O-ring from the cooler refrigerant liquid pipe A.

      Note

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

  9. REMOVE FRONT SEAT ASSEMBLY LH

    Click here

  10. REMOVE FRONT SEAT ASSEMBLY RH

    Tech Tips

    Use the same procedure as for the LH side.

  11. REMOVE INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY

    Click here

  12. REMOVE STEERING COLUMN ASSEMBLY

    Click here

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

    for LHD:

    Click here

    for RHD:

    Click here

  14. REMOVE CLEARANCE WARNING ECU ASSEMBLY (w/ LEXUS Parking Assist-sensor System)

    for LHD:

    Click here

    for RHD:

    Click here

  15. REMOVE DRIVING SUPPORT ECU ASSEMBLY (w/ Dynamic Radar Cruise Control System)

    for LHD:

    Click here

    for RHD:

    Click here

  16. REMOVE NO. 2 AIR DUCT SUB-ASSEMBLY


    1. B004E2E

      Remove the screw and No. 2 air duct sub-assembly.

  17. REMOVE ECU INTEGRATION BOX RH WITH HYBRID VEHICLE CONTROL ECU ASSEMBLY (for LHD)

    Click here

  18. REMOVE HYBRID VEHICLE CONTROL ECU ASSEMBLY (for RHD)

    Click here

  19. REMOVE STEREO COMPONENT EQUALIZER ASSEMBLY (w/ ASC System)

    for LHD:

    Click here

  20. REMOVE VEHICLE APPROACHING SPEAKER CONTROLLER (w/ Vehicle Proximity Notification System)

    Click here

  21. REMOVE TIRE PRESSURE MONITOR INITIATOR DRIVER (w/ Tire Inflation Pressure Display Function)

    for LHD:

    Click here

    for RHD:

    Click here

  22. REMOVE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) (w/ Network Gateway ECU)

    Click here

  23. REMOVE BRAKE CONTROL POWER SUPPLY ASSEMBLY

    for LHD:

    Click here

    for RHD:

    Click here

  24. REMOVE AIR CONDITIONING AMPLIFIER ASSEMBLY

    Click here

  25. REMOVE COOLER (ROOM TEMP. SENSOR) THERMISTOR


    1. B004EOA

      Disconnect the connector and air hose to remove the cooler (room temp. sensor) thermistor.

  26. REMOVE ACCELERATOR PEDAL PAD


    1. B004GQAC02
      *a Protective Tape

      Using a screwdriver with its tip wrapped with protective tape, disengage the 3 claws to remove the accelerator pedal pad.

  27. REMOVE ACCELERATOR PEDAL ASSEMBLY


    1. B004EUG

      Remove the 2 bolts.

    2. Remove the accelerator pedal assembly from the rod of the accelerator pedal sensor assembly.

  28. REMOVE REAR NO. 2 AIR DUCT


    1. B004FME

      Disengage the 2 claws.

    2. Using a clip remover, remove the clip.

      B004FHIC01
      *a Guide *b Clamp
      B008GB8 Fastener - -

    3. Disengage the 3 guides and clamp.

    4. Disengage each fastener and turn back the front floor carpet assembly as shown in the illustration.

    5. B004G6C

      Disengage the 4 claws to remove the rear No. 2 air duct.

  29. REMOVE FRONT FLOOR SILENCER PAD LH


    1. B004FYR

      Remove the front floor silencer pad LH.

  30. REMOVE REAR NO. 1 AIR DUCT


    1. B004GAP

      Remove the rear No. 1 air duct.

  31. REMOVE REAR NO. 4 AIR DUCT


    1. B004GER

      Disengage the 2 claws.

    2. Disengage the 3 guides and clamp.

      B004E8QC01
      *a Guide *b Clamp
      B008GB8 Fastener - -

    3. Disengage the fastener and turn back the front floor carpet assembly as shown in the illustration.

    4. B004G5W

      Disengage the 4 claws to remove the rear No. 4 air duct.

  32. REMOVE FRONT FLOOR SILENCER PAD RH


    1. B004G2E

      Remove the front floor silencer pad RH.

  33. REMOVE REAR NO. 3 AIR DUCT


    1. B004FH9

      Remove the rear No. 3 air duct.

  34. REMOVE NO. 1 CONSOLE BOX DUCT


    1. B004G3O

      Disengage the clamp.

    2. Remove the 2 clips and No. 1 console box duct.

  35. REMOVE NO. 2 INSTRUMENT PANEL TO FLOOR BRACE


    1. B004EW4

      Remove the 3 bolts.

    2. Disengage the 2 guides to remove the No. 2 instrument panel to floor brace.

  36. REMOVE INSTRUMENT PANEL SAFETY PAD CAP


    1. B004FEJC01
      *A for LH Side
      *B for RH Side
      *1 Instrument Panel Safety Pad Cap (A)
      *2 Instrument Panel Safety Pad Cap (B)
      B008GB8 Protective Tape

      Put protective tape around the 6 instrument panel safety pad caps.

    2. Using a screwdriver, remove the 4 instrument panel safety pad caps (A) and 2 instrument panel safety pad caps (B).

  37. REMOVE INSTRUMENT PANEL REINFORCEMENT ASSEMBLY WITH AIR CONDITIONING UNIT

    Note


    • 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.

    • When disassembling the air conditioning unit assembly, eliminate static electricity by touching the vehicle body to prevent the components from being damaged.


    1. Remove the 3 bolts and disconnect the 3 earth wires.

      B004FCEC01
      *a Earth Wire *b Bracket

    2. Remove the bolt and disconnect the bracket.

    3. Disconnect each connector.

    4. Disengage each clamp.

    5. B004EFC

      Remove the 3 hole plugs.

    6. B004FIS

      Remove the 3 bolts.

    7. Using SST, remove the nut and 8 bolts as shown in the illustration.

      B004FAWC01
      *1 Instrument Panel Reinforcement Assembly - -
      *a Movable Collar *b Vehicle Body
      *c Step 1 *d Step 2
      *e Step 3 *f Step 4
      B008GAS Nut B008GGT Bolt
      SST
      09812-00010

    8. Disengage the 3 guides and remove the instrument panel reinforcement assembly with air conditioning unit as shown in the illustration.

      B004EQR

  38. REMOVE AIR CONDITIONING UNIT ASSEMBLY


    1. Remove the 2 screws, 3 bolts and air conditioning unit assembly from the instrument panel reinforcement assembly.

      B004EFGC01
      B008GAS Screw B008GGT Bolt