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 engine switch off and disconnecting the cable from the negative (-) 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. B0077FN

      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. B00778A

      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. B007600

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

    2. B0076EZ

      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. B0074EA

      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 ECU INTEGRATION BOX RH WITH ENGINE STOP AND START ECU (w/ Stop and Start System)

    for LHD:

    Click here

  17. REMOVE ENGINE STOP AND START ECU (w/ Stop and Start System)

    for RHD:

    Click here

  18. REMOVE ENGINE STOP AND START SOLENOID FILTER (w/ Stop and Start System)

    Click here

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

    for LHD:

    Click here

  20. REMOVE NO. 2 AIR DUCT SUB-ASSEMBLY


    1. B00768S

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

  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 FRONT STEERING CONTROL ECU (w/ VGRS)

    for LHD:

    Click here

    for RHD:

    Click here

  24. REMOVE ECO RUN VEHICLE CONVERTER ASSEMBLY (w/ Stop and Start System)

    Click here

  25. REMOVE AIR CONDITIONING AMPLIFIER ASSEMBLY

    Click here

  26. REMOVE COOLER (ROOM TEMP. SENSOR) THERMISTOR


    1. B00763T

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

  27. REMOVE ACCELERATOR PEDAL PAD


    1. B0073ULC01
      B0076EM Protective Tape

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

  28. REMOVE ACCELERATOR PEDAL ASSEMBLY


    1. B0074V6

      Remove the 2 bolts.

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

  29. REMOVE REAR NO. 2 AIR DUCT


    1. B0076BU

      Disengage the 2 claws.

    2. Using a clip remover, remove the clip.

      B007441C01
      *a Guide *b Clamp
      B0076EM 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. B0076VM

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

  30. REMOVE FRONT FLOOR SILENCER PAD LH


    1. B0077AI

      Remove the front floor silencer pad LH.

  31. REMOVE REAR NO. 1 AIR DUCT


    1. B0073ZO

      Disengage the 2 clamps to disconnect the wire harness.

    2. Remove the rear No. 1 air duct.

  32. REMOVE REAR NO. 4 AIR DUCT


    1. B00742R

      Disengage the 2 claws.

    2. Disengage the 3 guides and clamp.

      B0073FOC01
      *a Guide *b Clamp
      B0076EM Fastener - -

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

    4. B0073RO

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

  33. REMOVE FRONT FLOOR SILENCER PAD RH


    1. B0073YE

      Remove the front floor silencer pad RH.

  34. REMOVE REAR NO. 3 AIR DUCT


    1. B0074RG

      Disengage the 2 clamps to disconnect the wire harness.

    2. Remove the rear No. 3 air duct.

  35. REMOVE NO. 1 CONSOLE BOX DUCT


    1. B0072WY

      Disengage the clamp.

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

  36. REMOVE NO. 2 INSTRUMENT PANEL TO FLOOR BRACE


    1. B00742J

      Remove the 3 bolts.

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

  37. REMOVE INSTRUMENT PANEL SAFETY PAD CAP


    1. B0076QAC01
      *A for LH Side
      *B for RH Side
      *1 Instrument Panel Safety Pad Cap (A)
      *2 Instrument Panel Safety Pad Cap (B)
      B0076EM 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).

  38. 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.

      B0077GSC02
      *a Earth Wire *b Bracket

    2. Remove the bolt and disconnect the bracket.

    3. Disconnect each connector.

    4. Disengage each clamp.

    5. B0073OY

      Remove the 3 hole plugs.

    6. B0073KP

      Remove the 3 bolts.

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

      B0077LBC01
      *1 Instrument Panel Reinforcement Assembly - -
      *a Movable Collar *b Vehicle Body
      *c Step 1 *d Step 2
      *e Step 3 *f Step 4
      B0073AQ Nut B0077IM 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.

      B0074T7

  39. REMOVE AIR CONDITIONING UNIT ASSEMBLY


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

      B0074Z7C01
      B0073AQ Screw B0077IM Bolt