RX400h · Service Manual HEATER & AIR CONDITIONING SYSTEM

REMOVAL

Removal / installation


1. DISCHARGE REFRIGERANT FROM REFRIGERATION SYSTEM
  1. Turn the A/C switch on.

  1. Operate the A/C with the setting temperature at 25°C (77°F) and the blower level at LO for 10 minutes to circulate the refrigerant and collect compressor oil remaining in each component into the cooler compressor as much as possible.

  1. Turn the ignition switch OFF.

  1. Using SST, let the refrigerant gas out.

    SST
    07110-58060   (07117-58080, 07117-58090, 07117-78050, 07117-88060, 07117-88070, 07117-88080)


2. DISCONNECT BATTERY NEGATIVE TERMINAL

CAUTION:
Wait for 90 seconds after disconnecting the cable to prevent the airbag working.


3. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY RH
  1. Remove the 2 nuts and the front wiper arm and blade assembly RH.


4. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH
  1. Remove the nut and the front wiper arm and blade assembly LH.


5. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY

  1. E110470
    Remove the 2 clips.

  1. Disengage the 6 claws and the clamp, and remove the cowl top ventilator louver sub-assembly.


6. REMOVE WINDSHIELD WIPER LINK ASSEMBLY

  1. E110471E01
    Disconnect the connector.

  1. Remove the 5 bolts and the windshield wiper motor and link assembly.

    HINT:
    Bolt <A> cannot be removed because it is integrated into windshield wiper link assembly.


7. REMOVE COWL TOP PANEL OUTER SUB-ASSEMBLY

  1. A112528E01
    Separate the wire harness clamp and grommet (A).

  1. Remove the 4 shock absorber nuts (B).

  1. Remove the 4 bolts, 2 nuts and cowl top panel sub-assembly.

  1. Install the 4 shock absorber nuts.

    Torque:
    80 N*m{ 815 kgf*cm , 59 ft.*lbf }


8. DISCONNECT AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY
  1. Install SST on the piping clamp.

    SST
    09870-00025  

    HINT:
    Make sure the direction of the piping clamp and SST by seeing the illustration shown on the caution label.

  1. I003839E01
    Push down SST and release the clamp lock.

    NOTICE:
    Do not deform the tube when pushing the SST.

  1. Pull the SST slightly and push the release lever, and then remove the piping clamp with SST.

  1. I006919E02
    Disconnect the air conditioning tube and accessory assembly.

    NOTICE:
    1. Do not use tools like a screwdriver to remove the tube.
    2. Cap the open fittings immediately to keep moisture or dirt out of the system.

  1. Remove the 2 O-rings from the air conditioning tube and accessory assembly.


9. DISCONNECT COOLER REFRIGERANT SUCTION HOSE NO.1 (LHD Type:)
SST
09870-00015  

HINT:
Disconnection of the cooler refrigerant suction hose No.1 is the same as the air conditioning tube and accessory assembly.


10. DISCONNECT COOLER REFRIGERANT SUCTION PIPE NO.1 (RHD Type:)
SST
09870-00015  

HINT:
Disconnection of the cooler refrigerant suction pipe No.1 is the same as the air conditioning tube and accessory assembly.


11. DISCONNECT HEATER WATER OUTLET HOSE

  1. E068679
    Using pliers, grip the claws of the clip and slide the clip, and then disconnect the heater water outlet hose.

    NOTICE:
    1. Do not apply any excessive force to the heater water outlet hose.
    2. Prepare a drain pan or cloth for cooling water leaks.


12. DISCONNECT HEATER WATER INLET HOSE

HINT:
Disconnection of the heater water inlet hose is same as the heater water outlet hose.


13. REMOVE INSTRUMENT PANEL ASSEMBLY

HINT:
Refer to the instructions for removal of the instrument panel assembly. (Click here)


14. REMOVE HYBRID VEHICLE CONTROL ECU
  1. Disconnect the 3 wire harness clamps.

  1. Disconnect the 6 connectors from the hybrid vehicle control ECU.

  1. A111574
    Remove the 2 nuts and hybrid vehicle control ECU.


15. REMOVE AIR CONDITIONER AMPLIFIER ASSEMBLY

  1. I036008
    Disconnect the connectors.

  1. Remove the 2 nuts and air conditioner amplifier assembly.


16. REMOVE AIR DUCT REAR NO.2

  1. E110810
    Turn back the floor carpet.

    HINT:
    Turn back the floor carpet so that the air duct rear No.2 can be removed.

  1. Release the claw and remove the air duct rear No.2.


17. REMOVE AIR DUCT REAR NO.1

  1. E110811
    Turn back the floor carpet.

    HINT:
    Turn back the floor carpet so that the air duct rear No.1 can be removed.

  1. Release the claw and remove the air duct rear No.1.


18. REMOVE AIR DUCT NO.1

  1. E110812E02
    Remove the bolt.

  1. Release the 3 claws and remove the air duct No.1.


19. DISCONNECT TRANSMISSION CONTROL CABLE ASSEMBLY

  1. C116128E01
    Using a screwdriver, disconnect the cable end from the shift lever assembly.

  1. C116129E01
    Pull out the stopper cap of the transmission control cable assembly.

  1. C116130
    Turn the socket of the transmission control cable counterclockwise and remove the stopper cap.

    NOTICE:
    Do not push in the stopper cap.


20. REMOVE SHIFT LEVER

  1. C113140E01
    Disconnect the pattern select switch connector, the shift lock control computer connector and the indicator light wire connector.

  1. C116131E01
    Remove the 4 nuts and disconnect the shift lever assembly from the vehicle.


21. REMOVE INSTRUMENT PANEL BRACKET NO.4

  1. E068402
    Remove the 4 nuts and instrument panel bracket No.4.


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

  1. I035850
    Remove the clamp and disconnect the connector.

  1. Remove the 3 bolts and 2 nuts and instrument panel brace No.1 sub-assembly.


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

  1. I035851
    Remove the clamp and disconnect the connector.

  1. Remove the 3 bolts and 2 nuts and instrument panel brace No.2 sub-assembly.


24. SEPARATE STEERING INTERMEDIATE SHAFT SUB-ASSEMBLY (Manual Tilt Type)

  1. C111429E01
    Loosen the bolt (A) and remove the clamp from the steering column hole shield.

  1. Loosen the bolt (B).

    HINT:
    Do not remove the bolt (B).

  1. C111478
    Remove the bolt, and then slide the steering intermediate shaft sub-assembly.

    NOTICE:
    Do not separate the steering intermediate shaft sub-assembly.

  1. C111430E01
    Put matchmarks on the steering intermediate shaft sub-assembly and the power steering link assembly.

  1. Separate the steering intermediate shaft sub-assembly from the power steering link assembly.


25. SEPARATE STEERING INTERMEDIATE SHAFT SUB-ASSEMBLY (Power Tilt and Power Type)

  1. C111429E01
    Loosen the bolt (A) and remove the clamp from the steering column hole shield.

  1. Loosen the bolt (B)

    HINT:
    Do not remove the bolt (B).

  1. C111478
    Remove the bolt, and then slide the steering intermediate shaft sub-assembly.

    NOTICE:
    Do not separate the steering intermediate shaft sub-assembly.

  1. C111430E01
    Put matchmarks on the steering intermediate shaft sub-assembly and the power steering link assembly.

  1. Separate the steering intermediate shaft sub-assembly from the power steering link assembly.


26. REMOVE STEERING COLUMN ASSEMBLY (Manual Tilt Type)
  1. Disconnect the connectors and wire harness clamps from the steering column assembly.

  1. C111434
    Remove the 2 bolts, 2 nuts and the steering column assembly.


27. REMOVE STEERING COLUMN ASSEMBLY (Power Tilt and Power Type)
  1. Disconnect the connectors and wire harness clamps from the steering column assembly.

  1. C111450
    Remove the 2 bolts, 2 nuts and the steering column assembly.


28. REMOVE AIR DUCT NO.1 SUB-ASSEMBLY

  1. I035854
    Remove the 3 nuts and air duct No.1 sub-assembly.


29. REMOVE INSTRUMENT PANEL REINFORCEMENT ASSEMBLY

  1. Remove the 4 bolts and 4 nuts.

    I035852

  1. Remove the clamp.

  1. Disconnect the connectors.

  1. Remove the 9 bolts and the 2 nuts and then remove the instrument panel reinforcement while holding the air conditioner unit assembly.

    I035853

    HINT:
    Make sure to hold the air conditioner unit assembly securely as its bracket installation parts may be damaged.


30. REMOVE AIR CONDITIONER UNIT ASSEMBLY

  1. I035855
    Remove the 2 nuts and air conditioner unit assembly.

    HINT:
    Make sure to hold the air conditioner unit assembly securely as its bracket installation parts may be damaged.


31. REMOVE AIR DUCT NO.2

  1. E110813
    Remove the screw.

  1. Release the 2 claws and remove the air duct No.2.


32. REMOVE WIRING AIR INDICATOR HARNESS NO.2 SUB-ASSEMBLY

  1. E110814
    Remove the 3 screws.

  1. Remove the clamp and disconnect the 2 connectors.

  1. Remove the wiring air indicator harness No.2 sub-assembly.


33. REMOVE BLOWER ASSEMBLY

  1. E110815
    Remove the screw.

  1. Release the claw and remove the blower assembly.

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