Air Conditioning 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 FOOT DUCT UPPER (for LHD)

  5. INSTALL FOOT DUCT LOWER (for LHD)

  6. INSTALL NO. 1 AIR DUCT (for RHD)

  7. INSTALL AIR CONDITIONING UNIT ASSEMBLY

  8. INSTALL INSTRUMENT PANEL REINFORCEMENT ASSEMBLY

  9. CONNECT TRANSPONDER KEY ECU ASSEMBLY

  10. INSTALL DEFROSTER LOWER NOZZLE ASSEMBLY

  11. INSTALL NO. 1 CONSOLE BOX DUCT

  12. INSTALL NO. 2 CONSOLE BOX DUCT

  13. INSTALL INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY

  14. INSTALL MULTI-DISPLAY WITH RADIO RECEIVER ASSEMBLY

  15. INSTALL FRONT PILLAR GARNISH LH

  16. INSTALL FRONT PILLAR GARNISH RH

  17. INSTALL GLOVE COMPARTMENT DOOR SUB-ASSEMBLY

  18. INSTALL FRONT PASSENGER SIDE KNEE AIRBAG ASSEMBLY

  19. INSTALL STEERING CONTROL ECU

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

  21. INSTALL INTEGRATION CONTROL AND PANEL ASSEMBLY

  22. INSTALL DRIVER SIDE KNEE AIRBAG ASSEMBLY

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

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

  25. INSTALL INSTRUMENT SIDE PANEL LH

  26. INSTALL INSTRUMENT SIDE PANEL RH

  27. INSTALL COMBINATION METER ASSEMBLY

  28. INSTALL INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY

  29. INSTALL CONSOLE BOX

  30. INSTALL STEERING COLUMN ASSEMBLY

  31. INSTALL CONSOLE BOX REGISTER ASSEMBLY

  32. INSTALL CONSOLE BOX PLATE

  33. INSTALL INSTRUMENT PANEL FINISH PANEL END LH

  34. INSTALL INSTRUMENT PANEL FINISH PANEL END RH

  35. INSTALL CONSOLE UPPER PANEL ASSEMBLY

  36. INSTALL FRONT CONSOLE UPPER PANEL GARNISH

  37. INSTALL HEADLIGHT DIMMER SWITCH ASSEMBLY

  38. INSTALL WINDSHIELD WIPER SWITCH ASSEMBLY

  39. INSTALL SPIRAL CABLE WITH STEERING SENSOR

  40. INSTALL STEERING COLUMN COVER UPPER

  41. INSTALL STEERING COLUMN COVER LOWER

  42. INSTALL STEERING WHEEL ASSEMBLY

  43. INSTALL STEERING PAD

  44. INSTALL NO. 3 STEERING WHEEL COVER LOWER

  45. INSTALL NO. 2 STEERING WHEEL COVER LOWER

  46. INSTALL FRONT DOOR OPENING TRIM COVER LH

  47. INSTALL FRONT DOOR OPENING TRIM COVER RH

  48. INSTALL FRONT DOOR SCUFF PLATE LH

  49. INSTALL FRONT DOOR SCUFF PLATE RH

  50. INSTALL HEATER WATER INLET HOSE A

  51. INSTALL HEATER WATER OUTLET HOSE A

  52. INSTALL LIQUID TUBE SUB-ASSEMBLY A

  53. INSTALL SUCTION PIPE SUB-ASSEMBLY

  54. INSTALL FRONT WIPER MOTOR AND LINK ASSEMBLY

  55. INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY

  56. INSTALL FRONT FENDER TO COWL SIDE SEAL LH

  57. INSTALL FRONT FENDER TO COWL SIDE SEAL RH

  58. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY LH

  59. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY RH

  60. INSTALL ENGINE ROOM SIDE COVER LH (for LHD)

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

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

  63. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

  64. ADD ENGINE COOLANT

  65. CHARGE REFRIGERANT

  66. INSTALL COOL AIR INTAKE DUCT SEAL

  67. WARM UP ENGINE

  68. CHECK FOR ENGINE COOLANT LEAKS

  69. CHECK FOR LEAKAGE OF REFRIGERANT

  70. PERFORM INITIALIZATION

  71. CHECK SRS WARNING LIGHT

Air Conditioning Unit -- Installation



1. INSTALL BLOWER ASSEMBLY


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

    Torque:
    3.0 N*m{30 kgf*cm, 27 in.*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.Air Conditioning.Air Conditioning System.Air Conditioning Unit  Installation
  1. Install the duct with the screw.



4. INSTALL FOOT DUCT UPPER (for LHD)


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Air Conditioning Unit  Installation
  1. Attach the 2 claws and install the foot duct.



5. INSTALL FOOT DUCT LOWER (for LHD)


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Air Conditioning Unit  Installation
  1. Attach the 2 claws to install the foot duct.



6. INSTALL NO. 1 AIR DUCT (for RHD)


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Attach the 2 claws and install the foot duct.



7. INSTALL AIR CONDITIONING UNIT ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the A/C unit with the nut.

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


8. 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.Air Conditioning 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.Air Conditioning 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.Air Conditioning Unit  Installation



9. CONNECT TRANSPONDER KEY ECU ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Air Conditioning Unit  Installation
  1. Install the transponder key ECU with the screw.

  1. Attach the clamp.



10. INSTALL DEFROSTER LOWER NOZZLE ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Air Conditioning Unit  Installation
  1. Attach the 4 claws to install the defroster lower nozzle.



11. INSTALL NO. 1 CONSOLE BOX DUCT


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the console box duct.



12. INSTALL NO. 2 CONSOLE BOX DUCT


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the console box duct with the 2 clips.



13. 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.Air Conditioning 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.



14. 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.



15. INSTALL FRONT PILLAR GARNISH LH


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



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


17. INSTALL GLOVE COMPARTMENT DOOR SUB-ASSEMBLY


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



18. 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}


19. INSTALL STEERING CONTROL ECU


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



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


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

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



21. INSTALL INTEGRATION CONTROL AND PANEL ASSEMBLY


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

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

  1. Install the 2 screws.



22. 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}


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


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



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


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

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

  1. Install the 2 screws.



25. INSTALL INSTRUMENT SIDE PANEL LH


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



26. INSTALL INSTRUMENT SIDE PANEL RH


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



27. INSTALL COMBINATION METER ASSEMBLY


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

  1. Install the combination meter with the 4 screws.



28. INSTALL INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY


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

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



29. INSTALL CONSOLE BOX


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

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



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


31. INSTALL CONSOLE BOX REGISTER ASSEMBLY


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



32. INSTALL CONSOLE BOX PLATE


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

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



33. INSTALL INSTRUMENT PANEL FINISH PANEL END LH


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

  1. Install the screw.



34. INSTALL INSTRUMENT PANEL FINISH PANEL END RH


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

  1. Install the screw.



35. INSTALL CONSOLE UPPER PANEL ASSEMBLY


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



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



37. 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.Air Conditioning Unit  Installation
  1. Install the dimmer switch with the clamp.

  1. Connect the connector.



38. INSTALL WINDSHIELD WIPER SWITCH ASSEMBLY


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

  1. Connect the connector.



39. 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.Air Conditioning 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.


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


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


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


43. 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}


44. INSTALL NO. 3 STEERING WHEEL COVER LOWER


45. INSTALL NO. 2 STEERING WHEEL COVER LOWER


46. 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.



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


48. INSTALL FRONT DOOR SCUFF PLATE LH


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

  1. Pull out the folded lip of the weatherstrip.



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


50. INSTALL HEATER WATER INLET HOSE A


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the water hose and attach the clip.



51. INSTALL HEATER WATER OUTLET HOSE A
  1. Use the same procedures described for the water hose.



52. INSTALL LIQUID TUBE SUB-ASSEMBLY A
  1. Remove the vinyl tape attached to the tube.

  1. Sufficiently apply compressor oil to a new O-ring and the fitting surface of the liquid tube.

    Compressor oil:
    ND-OIL 8 or equivalent
  1. Install the O-ring on the liquid tube.

  1. Install the liquid tube to the fitting hole.



53. INSTALL SUCTION PIPE SUB-ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Remove the vinyl tape attached to the pipe.

  1. Sufficiently apply compressor oil to a new O-ring and the fitting surface of the suction pipe.

    Compressor oil:
    ND-OIL 8 or equivalent
  1. Install the O-ring on the suction pipe.

  1. Move the hook connector in the direction indicated by the arrow in the illustration.

  1. Insert the pipe joints into the fitting holes securely and tighten the bolt.

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


54. INSTALL FRONT WIPER MOTOR AND LINK ASSEMBLY


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



55. INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY


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



56. INSTALL FRONT FENDER TO COWL SIDE SEAL LH


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



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


58. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY LH


Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Air Conditioning 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.Air Conditioning 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.)


59. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY RH


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



60. INSTALL ENGINE ROOM SIDE COVER LH (for LHD)


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Air Conditioning Unit  Installation
  1. Install the side cover with the 3 clips.



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


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



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


63. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL


64. ADD ENGINE COOLANT
NOTICE:
Before adding engine coolant, turn the A/C switch OFF.
  1. Tighten all the plugs and fill the radiator with TOYOTA Super Long Life Coolant (SLLC).

    Torque:
    12.7 N*m{130 kgf*cm, 9 ft.*lbf} for cylinder block drain cock plug
  1. Add engine coolant.

    Specified capacity:
    9.1 liters (9.6 US qts, 8.0 lmp. qts)
    NOTICE:
    When pressing the radiator hose:
    1. Wear protective gloves.
    1. Be careful as the radiator hose is hot.
    1. Keep your hands away from the radiator fan.
    HINT:
    1. TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology consists of a combination of low phosphates and organic acids).
    1. Please contact your TOYOTA dealer for further details.
    1. The thermostat open timing can be confirmed by pressing the inlet radiator hose by hand, and checking when the engine coolant starts to flow inside the hose.
  1. Slowly pour coolant into the radiator reservoir until it reaches the FULL line.

  1. Press the inlet and outlet radiator hoses several times by hand, and then check the level of the coolant.
    If the coolant level is low, add coolant.

  1. Install the radiator cap and reservoir cap.

  1. Bleed air from the cooling system.

    NOTICE:
    Before starting the engine to warm up the engine, turn the A/C switch OFF.

    1. Warm up the engine until the thermostat opens. While the thermostat is open, circulate the coolant for several minutes.

      HINT:
      The thermostat open timing can be confirmed by pressing the inlet radiator hose by hand, and checking when the engine coolant starts to flow inside the hose.
      NOTICE:
      When pressing the radiator hoses:
      1. Wear protective gloves.
      1. Be careful as the radiator hoses are hot.
      1. Keep your hands away from the radiator fan.
    2. Maintain the engine speed at 2,000 to 2,500 rpm.

    3. Press the inlet and outlet radiator hoses several times by hand to bleed air.

      NOTICE:
      When pressing the radiator hoses:
      1. Wear protective gloves.
      1. Be careful as the radiator hoses are hot.
      1. Keep your hands away from the radiator fan.
  1. Stop the engine, and wait until the engine coolant cools down to ambient temperature.

    CAUTION:
    Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Air Conditioning Unit  Installation
  1. Check the coolant level in the radiator reservoir.
    If the coolant level is low, add SLLC to the radiator reservoir FULL line.



65. CHARGE REFRIGERANT
  1. Perform vacuum purging using a vacuum pump.



  1. Charge refrigerant HFC-134a (R134a).

    Standard:
    450 +- 50 g (15.87 +- 1.76 oz.)
    SST
    07110-58060(07117-58060,07117-58070,07117-58080,07117-58090,07117-78050,07117-88060,07117-88070,07117-88080)


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

    NOTICE:
    1. Do not operate the cooler compressor before charging refrigerant as the cooler compressor will not work properly without any refrigerant, and will overheat.
    1. Approximately 100 g (3.53 oz.) of refrigerant may need to be charged after bubbles disappear. The refrigerant amount should be checked by measuring its quantity, and not with the sight glass.


66. INSTALL COOL AIR INTAKE DUCT SEAL


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



67. WARM UP ENGINE
  1. Warm up the engine at less than 1,850 rpm for 2 minutes or more after charging the refrigerant.

    NOTICE:
    Be sure to warm up the compressor when turning the A/C switch ON after removing and installing the cooler refrigerant lines (including the compressor), to prevent damage to the compressor.


68. CHECK FOR ENGINE COOLANT LEAKS
  1. Check for engine coolant leaks (Click here).



69. CHECK FOR LEAKAGE OF REFRIGERANT
  1. After recharging the refrigerant gas, check for refrigerant gas leakage using a halogen leak detector.

  1. Perform the operation under these conditions:

    1. Stop the engine.
    1. Secure good ventilation (the gas leak detector may react to volatile gases other than refrigerant, such as evaporated gasoline or exhaust gas).
    1. Repeat the test 2 or 3 times.
    1. Make sure that some refrigerant remains in the refrigeration system. When compressor is off: approximately 392 to 588 kPa (4 to 6 kgf/cm2 57 to 85 psi)


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Air Conditioning Unit  Installation
  1. Using a gas leak detector, check the refrigerant line for leakage.

  1. If a gas leak is not detected on the drain hose, remove the blower motor control (blower resistor) from the cooling unit. Insert the gas leak detector sensor into the unit and perform the test.

  1. Disconnect the connector and leave the pressure switch on for approximately 20 minutes. Bring the gas leak detector close to the pressure switch and perform the test.



70. 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.


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