AIR CONDITIONING UNIT REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during air conditioning unit removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Disconnect cable from negative auxiliary battery terminal Memorize steering angle neutral point Lane departure alert system (w/ Steering Control)

Click here

Intelligent clearance sonar system*1
Simple intelligent parking assist system*1
Pre-crash safety system
Parking assist monitor system

Click here

Initialize back door lock Power door lock control system

Click here


  • No. 1 air conditioning radiator damper servo sub-assembly

  • No. 2 air conditioning radiator damper servo sub-assembly

  • No. 3 air conditioning radiator damper servo sub-assembly

 Initialize servo motor (Air conditioning system) DTCs are stored

Click here

*1: When performing learning using the GTS.

Click here

PROCEDURE


  1. PRECAUTION

    Note


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

    • Make sure to perform initialization after replacing the air conditioning radiator damper servo sub-assembly. If initialization is not performed, the air conditioner 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

    for HFO-1234yf (R1234yf):

    Click here

  3. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

    Click here

  4. REMOVE NO. 1 HEATER AIR DUCT SPLASH SHIELD SEAL (for LHD)

    Click here

  5. REMOVE NO. 2 HEATER AIR DUCT SPLASH SHIELD SEAL (for RHD)

    Click here

  6. REMOVE WATER GUARD PLATE LH

    Click here

  7. REMOVE COWL BODY MOUNTING REINFORCEMENT LH

    Click here

  8. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY

    Click here

  9. DISCONNECT OUTLET HEATER WATER HOSE A (w/o Exhaust Heat Recirculation System)


    1. B004PPU

      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.

  10. DISCONNECT WATER PIPE AND HOSE SUB-ASSEMBLY A (w/ Exhaust Heat Recirculation System)


    1. B004P9O

      Using pliers, grip the claws of the clip and slide the clip to disconnect the water pipe and hose sub-assembly A.

      Note


      • Do not apply excessive force to the water pipe and hose sub-assembly A.

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

  11. DISCONNECT INLET HEATER WATER HOSE A


    1. w/o Exhaust Heat Recirculation System:


      1. B004P1G

        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.

    2. w/ Exhaust Heat Recirculation System:


      1. B004PCH

        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.

  12. DISCONNECT SUCTION PIPE SUB-ASSEMBLY


    1. B004QUZ

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

    2. B004OUU

      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.

  13. DISCONNECT AIR CONDITIONER TUBE AND ACCESSORY ASSEMBLY


    1. B004PC5

      Disconnect the air conditioner tube and accessory assembly.

    2. Remove the O-ring from the air conditioner tube and accessory assembly.

      Note

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

  14. REMOVE FRONT SEAT ASSEMBLY LH

    for Manual seat:

    Click here

    for Power seat:

    Click here

  15. REMOVE FRONT SEAT ASSEMBLY RH

    Tech Tips

    Use the same procedure as for the LH side.

    Click here

  16. REMOVE LOWER INSTRUMENT PANEL SUB-ASSEMBLY

    Click here

  17. REMOVE STEERING COLUMN ASSEMBLY

    Click here

  18. REMOVE SKID CONTROL BUZZER (w/ Toyota Safety Sense P)

    Click here

  19. REMOVE DRIVING SUPPORT ECU ASSEMBLY (w/ Toyota Safety Sense P)

    Click here

  20. REMOVE WINDSHIELD WIPER RELAY ASSEMBLY (w/ Rain Sensor)

    Click here

  21. REMOVE NO. 1 CLEARANCE WARNING BUZZER (w/ TOYOTA Parking Assist-sensor System)

    Click here

  22. REMOVE NO. 2 CLEARANCE WARNING BUZZER (w/ TOYOTA Parking Assist-sensor System)

    Click here

  23. REMOVE CLEARANCE WARNING ECU ASSEMBLY (w/ TOYOTA Parking Assist-sensor System)

    Click here

  24. REMOVE DOUBLE LOCK DOOR CONTROL RELAY ASSEMBLY (w/ Double Locking System)

    Click here

  25. REMOVE ECU INTEGRATION BOX RH (for LHD)

    Click here

  26. REMOVE ECU INTEGRATION BOX LH (for RHD)

    Click here

  27. REMOVE TELEMATICS TRANSCEIVER WITH ANTENNA CORD (w/ Telematics Transceiver)

    Click here

  28. REMOVE SHIFT LOCK CONTROL UNIT ASSEMBLY

    Click here

  29. REMOVE COOLER (ROOM TEMP. SENSOR) THERMISTOR


    1. B004QNZ

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

  30. REMOVE FRONT NO. 1 CONSOLE BOX INSERT


    1. B004ONFC01
      B004QOG Place Hand Here
      B004PI4 Remove in this Direction

      Disengage the clip and claw as shown in the illustration.

    2. B004QJGC01
      B004PI4 Remove in this Direction

      Disengage the guide to remove the front No. 1 console box insert as shown in the illustration.

  31. REMOVE FRONT NO. 2 CONSOLE BOX INSERT


    1. B004PBXC01
      B004QOG Place Hand Here
      B004PI4 Remove in this Direction

      Disengage the clip and claw as shown in the illustration.

    2. B004PZHC01
      B004PI4 Remove in this Direction

      Disengage the guide to remove the front No. 2 console box insert as shown in the illustration.

  32. REMOVE FRONT FLOOR CAUTION PLATE COVER


    1. B004Q26C02
      B004QOG Place Hand Here
      B004PI4 Remove in this Direction (1)
      B004OIV Remove in this Direction (2)

      Disengage the claw and guide as shown by the arrow (1), and then pull the front floor caution plate cover as shown by the arrow (2) in the illustration to remove it.

  33. REMOVE REAR NO. 3 AIR DUCT


    1. B004R0Q

      Remove the 2 front floor carpet clips.

    2. B004P2I

      Disengage the 2 guides and turn back the front floor carpet assembly as shown in the illustration.

    3. B004P9QC01
      B004PI4 Remove in this Direction

      Disengage the 2 claws to remove the rear No. 3 air duct as shown in the illustration.

  34. REMOVE REAR NO. 2 AIR DUCT


    1. B004PJ3

      Disengage the 2 claws and remove the rear No. 2 air duct.

  35. REMOVE REAR NO. 5 AIR DUCT


    1. B004P6H

      Remove the 2 front floor carpet clips.

    2. B004PRV

      Disengage the 2 guides and turn back the front floor carpet assembly as shown in the illustration.

    3. B004OVTC01
      B004PI4 Remove in this Direction

      Disengage the 2 claws to remove the rear No. 5 air duct as shown in the illustration.

  36. REMOVE REAR NO. 4 AIR DUCT


    1. B004PS9

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

  37. REMOVE REAR NO. 1 AIR DUCT


    1. B004PU3

      Disengage the 4 claws to remove the rear No. 1 air duct.

  38. REMOVE NO. 3 DASH PANEL INSULATOR PAD


    1. B004OLEC01
      *a Cut

      Cut each claw of the 2 clips and remove the No. 3 dash panel insulator pad.

      Note

      If the No. 3 dash panel insulator pad is damaged, replace it with a new one.

    2. Remove the 2 clips.

  39. REMOVE NO. 1 INSTRUMENT PANEL BRACE SUB-ASSEMBLY


    1. B004PX1

      Turn back the front floor mat as shown in the illustration.

    2. B004P7K

      Disengage each clamp.

    3. Remove the bolt and disconnect the earth wire.

    4. w/ PTC Heater:


      1. B004QES

        Remove the bolt and disconnect the earth wire.

    5. B004QX3C01
      B004PRK Bolt
      B004P9H Screw
      B004PZY Nut

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

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


    1. B004PUQ

      Turn back the front floor mat as shown in the illustration.

    2. B004OYM

      Disengage each clamp.

    3. B004PPTC01
      B004PRK Bolt
      B004P9H Screw
      B004PZY Nut

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

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


    1. for LHD:


      1. B004Q1QC01
        B004PRK Bolt
        B004P9H Nut

        Disengage the clamp and 2 claws to disconnect the DLC3 connector.

    2. Remove the bolt, nut and No. 3 instrument panel to cowl brace sub-assembly.

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

    Click here

  43. REMOVE LOWER DEFROSTER NOZZLE ASSEMBLY


    1. B004OQI

      Disengage the 6 claws to remove the lower defroster nozzle assembly.

  44. 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. for LHD:


      1. Disconnect each connector.

        B004OF2C01
        *A w/ PTC Heater - -
        *a Earth Wire *b Relay Block Assembly
        B004PRK Connector B004P9H Bolt

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

      3. Remove the bolt and disconnect the relay block assembly.

      4. Disengage each clamp and disconnect the instrument panel wire.

    2. for RHD:


      1. Disconnect each connector.

        B004Q2SC01
        *a Earth Wire *b Relay Block Assembly
        B004PRK Connector B004P9H Bolt

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

      3. Remove the bolt and disconnect the relay block assembly.

      4. Disengage each clamp and disconnect the instrument panel wire.

    3. B004PYGC01
      *1 COOLER UNIT DRAIN HOSE GROMMET

      Disconnect the drain cooler hose.

      Note

      If the cooler unit drain hose grommet is disconnected from the vehicle body while disconnecting the drain cooler hose, make sure to replace it with a new one. Failure to do so may cause water ingress.

    4. B004PVL

      Remove the 2 bolts.

    5. Remove the 4 bolts (A).

      B004QIWC01
      B004PRK Bolt (A) B004P9H Bolt (B)
      B004PZY Nut - -

    6. Remove the bolt (B) and disconnect the parking brake pedal assembly.

    7. Remove the nut.

    8. Disconnect each connector.

      B004QIZC01
      B004PI4 Remove in this Direction - -

    9. Remove the instrument panel reinforcement assembly with air conditioner unit assembly as shown in the illustration.

  45. REMOVE AIR CONDITIONER UNIT ASSEMBLY


    1. Remove the 3 bolts and air conditioner unit assembly from the instrument panel reinforcement assembly.

      B004QWT