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Home >> Lexus >> 2023 >> LC 500h >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating / Air Conditioning System - Service Information (2 Of 2) >> Heater Water Pump >> Installation [01/2017 - ] >> Procedure

Installation [01/2017 - ]: Procedure

  1. INSTALL HEATER ACCESSORY ASSEMBLY 
    1. Attach the 4 hose clips to the water pipe sub-assembly.
      GTY805226Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect water pipe sub-assembly with its marking aligned as shown in the illustration and install the 2 hose clips within the range shown in the illustration.
      NOTE:
      • Do not apply excessive force to the water pipe sub-assembly.
      • Install the clips 2 to 5 mm (0.0787 to 0.1969 in.) away from the end of the hose.
      GTY804925Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a View A *b Marking (Green)
      *c Hose Clip Installation Angle (165 to 195°) *d View B
      *e Marking (White) *f Hose Clip Installation Angle (165 to 195°)
    3. Insert the heater accessory assembly (with water pipe sub-assembly) into the vehicle from engine room as shown in the illustration.
      GTY807270Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Insert in this Direction
    4. GTY822953Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Nut
      Connector

      Install the heater accessory assembly (with water pipe sub-assembly) with the 2 nuts.

      Torque: 8.0 N.m (82 kgf/cm, 71 in.lbf) 

    5. Connect the connector.
    6. Install the nut.
      GTY818217Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Stopper

      Torque: 8.0 N.m (82 kgf/cm, 71 in.lbf) 

      NOTE:

      Install with a stopper on the seating surface of the transmission oil cooler bracket.

    7. Connect water pipe sub-assembly with its marking aligned as shown in the illustration and install the 2 hose clips within the range shown in the illustration.
      NOTE:
      • Do not apply excessive force to the water pipe sub-assembly.
      • Insert the hose until it bulges but without it sticking out.
      GTY776570Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Hose Clip - -
      *a View A *b Marking (Blue)
      *c Hose Clip Installation Angle (-15 to 15°) *d View B
      *e Marking (Yellow) *f Hose Clip Installation Angle (-15 to 15°)
      *g Hose Connector Detail *h Bulge
      *i Marking *j Hose Clip Installation Range (3 to 7 mm (0.1181 to 0.2756 in.))
    8. Attach the clamp as shown in the illustration.
      NOTE:

      Make sure the marking is hidden in the clamp.

      GTY796029Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Clamp
      *a Marking
  2. INSTALL OIL PUMP MOTOR CONTROLLER ASSEMBLY 
    1. Install the oil pump motor controller assembly with the 2 nuts.

      Torque: 8.5 N.m (87 kgf/cm, 75 in.lbf) 

      GTY785524Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Attach the clamp.
    3. Attach the clamp.
      GTY785512Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Connect the ground wire with the 2 bolts.

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

  3. INSTALL AIR CLEANER ASSEMBLY 

    Refer to PROCEDURE - Step 3 [01/2017 - 05/2023] , or refer to PROCEDURE - Step 3 [05/2023 - ]

  4. INSTALL NO. 1 AIR CLEANER INLET 

    Refer to PROCEDURE - Step 5

  5. INSTALL RADIATOR SUPPORT TO CROSSMEMBER BRACE SUB-ASSEMBLY RH 
    1. Install the radiator support to crossmember brace sub-assembly RH with the 2 bolts.
      GTY806078Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 49 N.m (500 kgf/cm, 36 ft.lbf) 

  6. ADD ENGINE COOLANT 

    Refer to PROCEDURE - Step 5

  7. INSPECT FOR COOLANT LEAK 

    Refer to PROCEDURE - Step 3

  8. INSTALL NO. 2 ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 114 [01/2017 - 06/2019] , or refer to PROCEDURE - Step 114 [06/2019 - 05/2023] , or refer to PROCEDURE - Step 114 [05/2023 - ]

  9. INSTALL NO. 1 ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 115 [01/2017 - 06/2019] , or refer to PROCEDURE - Step 115 [06/2019 - 05/2023] , or refer to PROCEDURE - Step 115 [05/2023 - ]

  10. INSTALL LOWER RADIATOR AIR DEFLECTOR 
    1. Attach the claw and guide to install the lower radiator air deflector.
      GTY805544Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the 9 clips.
  11. INSTALL ENGINE ROOM SIDE COVER LH 
    1. Attach the claw and guide to install the engine room side cover LH.
      GTY805546Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the 3 clips.
  12. INSTALL RADIATOR SUPPORT TO FRAME SEAL RH 
    1. Attach the claw and guide to install the radiator support to frame seal RH.
      GTY805545Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the 6 clips.
  13. INSTALL V-BANK COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 118 [01/2017 - 06/2019] , or refer to PROCEDURE - Step 118 [06/2019 - 05/2023] , or refer to PROCEDURE - Step 118 [05/2023 - ]