Blower Unit Installation

Heater & Air Conditioning System. Lexus Gs430, Gs300. Uzs190 Grs190
Air Conditioning. Lexus Gs430, Gs300. Uzs190 Grs190

  1. INSTALL BLOWER ASSEMBLY

  2. INSTALL AIR CONDITIONING AMPLIFIER ASSEMBLY

  3. INSTALL NO. 2 AIR DUCT

  4. INSTALL INSTRUMENT PANEL REINFORCEMENT ASSEMBLY

  5. INSTALL INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY

  6. INSTALL MULTI-DISPLAY WITH RADIO RECEIVER ASSEMBLY

  7. INSTALL FRONT PILLAR GARNISH LH

  8. INSTALL FRONT PILLAR GARNISH RH

  9. INSTALL GLOVE COMPARTMENT DOOR SUB-ASSEMBLY

  10. INSTALL FRONT PASSENGER SIDE KNEE AIRBAG ASSEMBLY

  11. INSTALL STEERING CONTROL ECU

  12. INSTALL NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

  13. INSTALL INTEGRATION CONTROL AND PANEL ASSEMBLY

  14. INSTALL DRIVER SIDE KNEE AIRBAG ASSEMBLY

  15. INSTALL NO. 1 INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY

  16. INSTALL NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

  17. INSTALL INSTRUMENT SIDE PANEL LH

  18. INSTALL INSTRUMENT SIDE PANEL RH

  19. INSTALL COMBINATION METER ASSEMBLY

  20. INSTALL INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY

  21. INSTALL CONSOLE BOX

  22. INSTALL STEERING COLUMN ASSEMBLY

  23. INSTALL CONSOLE BOX REGISTER ASSEMBLY

  24. INSTALL CONSOLE BOX PLATE

  25. INSTALL INSTRUMENT PANEL FINISH PANEL END LH

  26. INSTALL INSTRUMENT PANEL FINISH PANEL END RH

  27. INSTALL CONSOLE UPPER PANEL ASSEMBLY

  28. INSTALL FRONT CONSOLE UPPER PANEL GARNISH

  29. INSTALL HEADLIGHT DIMMER SWITCH ASSEMBLY

  30. INSTALL WINDSHIELD WIPER SWITCH ASSEMBLY

  31. INSTALL SPIRAL CABLE WITH STEERING SENSOR

  32. INSTALL STEERING COLUMN COVER UPPER

  33. INSTALL STEERING COLUMN COVER LOWER

  34. INSTALL STEERING WHEEL ASSEMBLY

  35. INSTALL STEERING PAD

  36. INSTALL NO. 3 STEERING WHEEL COVER LOWER

  37. INSTALL NO. 2 STEERING WHEEL COVER LOWER

  38. INSTALL FRONT DOOR OPENING TRIM COVER LH

  39. INSTALL FRONT DOOR OPENING TRIM COVER RH

  40. INSTALL FRONT DOOR SCUFF PLATE LH

  41. INSTALL FRONT DOOR SCUFF PLATE RH

  42. INSTALL FRONT WIPER MOTOR AND LINK ASSEMBLY

  43. INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY

  44. INSTALL FRONT FENDER TO COWL SIDE SEAL RH

  45. INSTALL FRONT FENDER TO COWL SIDE SEAL LH

  46. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY RH

  47. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY LH

  48. INSTALL FRONT PILLAR TO FRONT SIDE SEAL SUB-ASSEMBLY RH

  49. INSTALL FRONT PILLAR TO FRONT SIDE SEAL SUB-ASSEMBLY LH

  50. INSTALL ENGINE ROOM SIDE COVER LH

  51. INSTALL COOL AIR INTAKE DUCT SEAL

  52. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

  53. PERFORM INITIALIZATION

  54. CHECK SRS WARNING LIGHT

Blower Unit -- Installation



1. INSTALL BLOWER ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Install the blower with the 2 claws and screw.

    Torque:
    3.0 N*m{31 kgf*cm, 27 in.*lbf}
  1. Install the blower with the nut.

    Torque:
    9.8 N*m{100 kgf*cm, 7 ft.*lbf}
  1. Connect the connector.



2. INSTALL AIR CONDITIONING AMPLIFIER ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the A/C amplifier with the screw and connect the connector.



3. INSTALL NO. 2 AIR DUCT


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the air duct with the screw.



4. INSTALL INSTRUMENT PANEL REINFORCEMENT ASSEMBLY


  1. Driver side:



    1. Using a T40 "torx" socket, install the instrument panel reinforcement with the 3 "torx" bolts.

      Torque:
      17 N*m{173 kgf*cm, 13 ft.*lbf}


      Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation

  1. Passenger side:

    1. Using a 12 mm hexagon wrench, install the instrument panel reinforcement with the 2 bolts.

      Torque:
      6.0 N*m{61 kgf*cm, 53 in.*lbf}
    2. Using a T40 "torx" socket, install the instrument panel reinforcement with the 2 "torx" bolts.

      Torque:
      20 N*m{204 kgf*cm, 15 ft.*lbf}
  1. Install the instrument panel reinforcement with the 6 bolts and 2 screws.

    Torque:
    :
    9.8 N*m{100 kgf*cm, 7 ft.*lbf}for bolt A


  1. Install the bolt and cap.


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation

  1. Connect the 2 connectors and attach the 27 clamps.



  1. Install the 2 junction blocks with the 2 bolts and 3 nuts.


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation



5. INSTALL INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY
  1. Attach the 5 clips to install the safety pad.

  1. Connect the connectors and clamps.

  1. Install the 2 bolts to the passenger airbag.

    Torque:
    20 N*m{204 kgf*cm, 15 ft.*lbf}
  1. Install the 4 bolts, nut and 2 clips.



  1. Install the center junction block RH and LH with the 4 nuts.


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. w/ Navigation system:
    Install the navigation ECU.

    1. Connect the connector.

    2. Install the ECU with the 3 bolts.



6. INSTALL MULTI-DISPLAY WITH RADIO RECEIVER ASSEMBLY
  1. Connect the connectors.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Insert the multi-display with radio receiver and attach the 2 clips on its backside.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the multi-display with radio receiver with the 4 bolts.



7. INSTALL FRONT PILLAR GARNISH LH


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Attach a new clip A to the vehicle body.

  1. Set the pillar garnish to the area labeled B. Using needle-nose pliers, install clip A to the pillar garnish and rotate it 90°.

  1. Install the pillar garnish by attaching the claws and clip.

  1. Pull out the folded lip of the weatherstrip.



8. INSTALL FRONT PILLAR GARNISH RH
HINT:
Use the same procedures described for the LH side.


9. INSTALL GLOVE COMPARTMENT DOOR SUB-ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Attach the 2 clips and claw to install the glove compartment door.

  1. Connect the connector and clamp.

  1. Install the 4 screws.



10. INSTALL FRONT PASSENGER SIDE KNEE AIRBAG ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Connect the connector.

    NOTICE:
    When handling the airbag connector, take care not to damage the airbag wire harness.
  1. Install the front passenger side knee airbag assembly with the 3 bolts.

    Torque:
    10 N*m{102 kgf*cm, 7 ft.*lbf}


11. INSTALL STEERING CONTROL ECU


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Install the steering control ECU with the 3 screws.

    HINT:
    1. Align positioning boss (A) of the blower assembly with the hole of the steering control ECU.
    2. Securely engage hook (B) of the steering control ECU with the blower assembly.


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Connect the 3 connectors to the steering control ECU.



12. INSTALL NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Connect the connector and clamp.

  1. Attach the 4 clips to install the under cover.



13. INSTALL INTEGRATION CONTROL AND PANEL ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Connect the connector.

  1. Attach the 2 claws to install the control panel.

  1. Install the 2 screws.



14. INSTALL DRIVER SIDE KNEE AIRBAG ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Connect the connector.

    NOTICE:
    When handling the airbag connector, take care not to damage the airbag wire harness.
  1. Install the driver side knee airbag assembly with the 4 bolts.

    Torque:
    10 N*m{102 kgf*cm, 7 ft.*lbf}


15. INSTALL NO. 1 INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Install the hood lock control cable to the safety pad.

  1. Attach the 8 clips and claw to install the safety pad.



16. INSTALL NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Connect the connectors.

  1. Attach the 2 claws to install the under cover.

  1. Install the 2 screws.



17. INSTALL INSTRUMENT SIDE PANEL LH


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Attach the 2 claws and 4 clips to install the side panel.



18. INSTALL INSTRUMENT SIDE PANEL RH


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Attach the 2 claws and 4 clips to install the side panel.



19. INSTALL COMBINATION METER ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Connect the connector.

  1. Install the combination meter with the 4 screws.



20. INSTALL INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Connect the connector.

  1. Attach the 5 clips to install the cluster finish panel.



21. INSTALL CONSOLE BOX


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Connect the connector.

  1. Install the console box with the 4 bolts and 2 screws.



22. INSTALL STEERING COLUMN ASSEMBLY
For 3GR-FE (Click here)
For 3GR-FSE (Click here)
For 3UZ-FE (Click here)


23. INSTALL CONSOLE BOX REGISTER ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Attach the 4 clips to install the register.



24. INSTALL CONSOLE BOX PLATE


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Connect the connector.

  1. Attach the 4 clips to install the console box.



25. INSTALL INSTRUMENT PANEL FINISH PANEL END LH


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Attach the 4 clips and 3 claws to install the finish panel end.

  1. Install the screw.



26. INSTALL INSTRUMENT PANEL FINISH PANEL END RH


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Attach the 3 clips and 3 claws to install the finish panel end.

  1. Install the screw.



27. INSTALL CONSOLE UPPER PANEL ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Connect the connector.

  1. Attach the 9 clips to install the ash receptacle.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the shift lever knob and twist it in the direction indicated by the arrow.



28. INSTALL FRONT CONSOLE UPPER PANEL GARNISH
  1. Attach the claws to install the garnish.



29. INSTALL HEADLIGHT DIMMER SWITCH ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the dimmer switch with the claw as shown in the illustration.

    HINT:
    Make sure that the claw is completely engaged.


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Install the dimmer switch with the clamp.

  1. Connect the connector.



30. INSTALL WINDSHIELD WIPER SWITCH ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Attach the claw and install the wiper switch.

  1. Connect the connector.



31. INSTALL SPIRAL CABLE WITH STEERING SENSOR
  1. Check that the front wheels are facing straight ahead.

  1. Set the turn signal switch to the neutral position.

    NOTICE:
    If it is not in the neutral position, the pin of the turn signal switch may be snapped.


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Engage the 3 claws and install the spiral cable with steering sensor.

    NOTICE:
    When replacing the spiral cable with a new one, remove the lock pin before installing the steering wheel assembly.
  1. Connect the connectors to the spiral cable with steering sensor.

    NOTICE:
    When handling the airbag connector, take care not to damage the airbag wire harness.


32. INSTALL STEERING COLUMN COVER UPPER
For 3GR-FE (Click here)
For 3GR-FSE (Click here)
For 3UZ-FE (Click here)


33. INSTALL STEERING COLUMN COVER LOWER
For 3GR-FE (Click here)
For 3GR-FSE (Click here)
For 3UZ-FE (Click here)


34. INSTALL STEERING WHEEL ASSEMBLY
For 3GR-FE (Click here)
For 3GR-FSE (Click here)
For 3UZ-FE (Click here)


35. INSTALL STEERING PAD


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Support the steering pad with one hand as shown in the illustration.

  1. Connect the 2 connectors to the steering pad.

    NOTICE:
    When handling the airbag connector, take care not to damage the airbag wire harness.
  1. Connect the horn connector.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Confirm that the circumference groove of the "torx" screw fits in the screw case, and place the steering pad onto the steering wheel assembly.

  1. Using a "torx" socket wrench (T30), tighten the 2 "torx" screws.

    Torque:
    8.8 N*m{90 kgf*cm, 78 in.*lbf}


36. INSTALL NO. 3 STEERING WHEEL COVER LOWER


37. INSTALL NO. 2 STEERING WHEEL COVER LOWER


38. INSTALL FRONT DOOR OPENING TRIM COVER LH
  1. Attach the 3 claws to install the trim cover.

  1. Pull out the folded lip of the weatherstrip.



39. INSTALL FRONT DOOR OPENING TRIM COVER RH
HINT:
Use the same procedures described for the LH side.


40. INSTALL FRONT DOOR SCUFF PLATE LH


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Attach the 5 claws to install the scuff plate.

  1. Pull out the folded lip of the weatherstrip.



41. INSTALL FRONT DOOR SCUFF PLATE RH
HINT:
Use the same procedures described for the LH side.


42. INSTALL FRONT WIPER MOTOR AND LINK ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Install the wiper motor and link assembly with the 4 bolts.

    Torque:
    5.5 N*m{56 kgf*cm, 49 in.*lbf}


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Connect the connector. Then attach the 2 clamps to install the wire harness to the cowl top panel.



43. INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Push the ventilator louver in the direction indicated by the arrow in the illustration. Attach the 10 claws to install the ventilator louver.



    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Attach the 5 claws and 2 clips to install the ventilator louver.



44. INSTALL FRONT FENDER TO COWL SIDE SEAL RH
HINT:
Use the same procedures described for the LH side.


45. INSTALL FRONT FENDER TO COWL SIDE SEAL LH


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Push the cowl side seal in the direction indicated by the arrow in the illustration. Attach the 2 claws to install the cowl side seal.



46. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY RH


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Stop the wiper motor at the automatic stop position.

  1. Clean the wiper arm serration with a round file or equivalent.

  1. Clean the wiper pivot serration with a wire brush.



    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Install the wiper arm and blade with the nut. Make sure that the wiper arm and blade comes to the position shown in the illustration.

    Torque:
    22 N*m{224 kgf*cm, 16 ft.*lbf}
    HINT:
    Hold down the wiper arm hinge with your hand while tightening the nut.
    Specification:
    Area
    Measurement
    A (for LHD)
    28.9 mm (1.138 in.)
    B (for LHD)
    21.8 mm (0.858 in.)
    C (for RHD)
    26.2 mm (1.031 in.)
    D (for RHD)
    25.3 mm (0.996 in.)
  1. Operate the front wipers while spraying washer fluid on the windshield glass. Make sure that the front wipers function properly and there is no interference with the vehicle body.



47. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY LH


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Stop the wiper motor at the automatic stop position.

  1. Clean the wiper arm serration with a round file or equivalent.

  1. Clean the wiper pivot serration with a wire brush.



    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Install the wiper arm and blade with the nut. Make sure that the wiper arm and blade comes to the position shown in the illustration.

    Torque:
    22 N*m{224 kgf*cm, 16 ft.*lbf}
    HINT:
    Hold down the wiper arm hinge with your hand while tightening the nut.
    Specification:
    Area
    Measurement
    A (for LHD)
    25.3 mm (0.996 in.)
    B (for LHD)
    26.2 mm (1.031 in.)
    C (for RHD)
    21.8 mm (0.858 in.)
    D (for RHD)
    28.9 mm (1.138 in.)


48. INSTALL FRONT PILLAR TO FRONT SIDE SEAL SUB-ASSEMBLY RH
HINT:
Use the same procedures described for the LH side.


49. INSTALL FRONT PILLAR TO FRONT SIDE SEAL SUB-ASSEMBLY LH


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Attach the 3 clips to install the side seal.



50. INSTALL ENGINE ROOM SIDE COVER LH


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Install the side cover with the 2 clips and nut.



51. INSTALL COOL AIR INTAKE DUCT SEAL


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Blower Unit  Installation
  1. Install the intake duct seal with the 7 clips.



52. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL


53. PERFORM INITIALIZATION
  1. Perform initialization (Click here).

    NOTICE:
    Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.


54. CHECK SRS WARNING LIGHT
  1. Check the SRS warning light (Click here).