Lexus RX400h, Hybrid 3 2006

Removal & Installation

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CAUTION
Refer to the applicable precautions for this system before performing the following operation. Failure to follow the warnings and cautions could result in possible personal injury or death.

  1. Discharge and recover the refrigerant from the A/C system.
  2.  
  3. Disconnect the negative battery cable.
    CAUTION
    Wait 90 seconds after disconnect the cable to allow the airbag to discharge.

  4.  
  5. Drain the cooling system.
  6.  
  7. Remove or disconnect the following:

    Wiper arms
     
    Cowl top ventilator louver assembly
     
    Wiper link assembly
     
    Air conditioning tube and accessory assembly
     
    Cooler refrigerant suction hose No.1
     
    Heater hoses from the heater core.
     

  8.  
  9. Remove the instrument panel assembly as follows:
    1. Remove the shift knob and console panel.
    2.  
    3. Remove the lower instrument panel.
    4.  
    5. Remove the radio.
    6.  
    7. Remove the multi-display unit.
    8.  
    9. Remove the steering wheel lower covers.
    10.  
    11. Using a Torx® wrench, loosen the 2 screws located at each side of the steering wheel until the screw-s circumference groove catches on the screw case
    12.  
    13. Pull the air bag module from the steering wheel and disconnect the electrical connector.
      CAUTION
      Place the air bag module in a safe place with the front side facing upward.

    14.  
    15. Disconnect the horn connector.
    16.  
    17. Remove the steering pad.
    18.  
    19. Matchmark the steering wheel and main shaft assembly.
    20.  
    21. Using Special Tool 00950-50013, remove the steering wheel assembly.

      Click image to see an enlarged view

      Fig. Using the special tool to remove the steering wheel assembly

    22.  
    23. Remove the steering column cover.
    24.  
    25. Remove the tilt and telescopic switch.
    26.  
    27. Remove the turn signal switch assembly with spiral cable assembly.
    28.  
    29. Remove the left-hand cowl side trim sub-assembly.
    30.  
    31. Remove the lower instrument panel.
    32.  
    33. Remove the driver side knee airbag assembly.
    34.  
    35. Remove the gauge cluster trim.
    36.  
    37. Remove the instrument gauge assembly.
    38.  
    39. Remove the right-hand front door scuff plate.
    40.  
    41. Remove the right-hand cowl side trim assembly.
    42.  
    43. Remove the instrument panel No. 2 under cover.
    44.  
    45. Remove the glove compartment door assembly.
    46.  
    47. Remove the center console carpet.
    48.  
    49. Remove the lower center instrument panel.
    50.  
    51. Remove the A-pillar trim.
    52.  
    53. Remove the instrument panel finish plate.
    54.  
    55. Remove the No.1 register panel.
    56.  
    57. Remove the instrument panel assembly.

      Click image to see an enlarged view

      Fig. Disconnect each of the clamps and connectors to remove the instrument panel assembly.

    58.  

  10.  
  11. Remove the hybrid vehicle control ECU.
  12.  
  13. Remove the air conditioner amplifier assembly.
  14.  
  15. Remove the rear air ducts.
  16.  
  17. Remove air duct No.1.
  18.  
  19. Remove the No.4 instrument panel bracket.
  20.  
  21. Remove the No.1 instrument panel brace.
  22.  
  23. Remove the No.2 instrument panel brace.
  24.  
  25. Matchmark and separate the steering intermediate shaft sub-assembly.
  26.  
  27. Remove the steering column assembly.
  28.  
  29. Remove the No.1 air duct sub-assembly.
  30.  
  31. Remove the instrument panel reinforcement assembly.

    Click image to see an enlarged view

    Fig. Remove the 9 bolts and 2 nuts to remove the instrument panel reinforcement assembly.

  32.  
  33. Remove the air conditioner unit.
  34.  
  35. Remove the No.2 air duct.
  36.  
  37. Remove the blower assembly.
  38.  
  39. Remove the heater to register center duct.
  40.  
  41. Remove the air outlet control servo motor.
  42.  
  43. Remove the air mix control servo motor.
  44.  
  45. Remove the evaporator temperature sensor.
  46.  
  47. Remove the heater core.

    Click image to see an enlarged view

    Fig. Remove the heater core from the air conditioner unit.

  48.  
  49. Installation is the reverse order of removal.
  50.  
  51. If necessary, perform the initialization procedure, as outlined in the Chassis Electrical System.
  52.  

 
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