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Home >> Lexus >> 2023 >> LC 500h >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Motor Systems >> Hybrid Battery Control System - Service Information (2 Of 2) >> Water Pump With Motor >> Removal [01/2017 - ] >> Procedure

Removal [01/2017 - ]: Procedure

  1. DRAIN COOLANT (for Inverter) 

    Refer to PROCEDURE - Step 5 [01/2017 - 05/2023] , or refer to PROCEDURE - Step 5 [05/2023 - ]

  2. REMOVE RADIATOR SUPPORT TO FRAME SEAL RH 

    Refer to PROCEDURE - Step 2

  3. REMOVE LOWER RADIATOR AIR DEFLECTOR 

    Refer to PROCEDURE - Step 3

  4. REMOVE RADIATOR SUPPORT TO CROSSMEMBER BRACE SUB-ASSEMBLY RH 

    Refer to PROCEDURE - Step 16 [01/2017 - 06/2019] , or refer to PROCEDURE - Step 16 [06/2019 - 05/2023] , or refer to PROCEDURE - Step 16 [05/2023 - ]

  5. REMOVE NO. 1 AIR CLEANER INLET 

    Refer to PROCEDURE - Step 7

  6. REMOVE AIR CLEANER ASSEMBLY 

    Refer to PROCEDURE - Step 6 [01/2017 - 05/2023] , or refer to PROCEDURE - Step 6 [05/2023 - ]

  7. REMOVE INVERTER RESERVE TANK ASSEMBLY 
    1. Slide the 2 hose clips and disconnect the No. 1 inverter cooling hose and No. 6 inverter cooling hose from the inverter reserve tank assembly.
      GTY790505Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 1 Inverter Cooling Hose
      *2 No. 6 Inverter Cooling Hose
      NOTE:
      • Put pieces of cloth into the pipes and disconnected hoses or cover the pipes and hoses with plastic bags to prevent foreign matter from entering the inverter water pump assembly and cooling system.
      • Do not apply excessive force to the No. 1 inverter cooling hose and No. 6 inverter cooling hose.
    2. Remove the 2 bolts.
      GTY790595Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disconnect the grommet and remove the inverter reserve tank assembly.
  8. REMOVE INVERTER WATER PUMP ASSEMBLY (WITH MOTOR) 
    1. Slide the 2 hose clips and disconnect the No. 1 inverter cooling hose and No. 2 inverter cooling hose from the inverter water pump assembly (with motor).
      GTY792267Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 1 Inverter Cooling Hose
      *2 No. 2 Inverter Cooling Hose
      NOTE:
      • Put pieces of cloth into the pipes and disconnected hoses or cover the pipes and hoses with plastic bags to prevent foreign matter from entering the inverter water pump assembly and cooling system.
      • Do not apply excessive force to the No. 1 inverter cooling hose and No. 2 inverter cooling hose.
    2. Disconnect the connector.
      GTY815702Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Apply insulating tape to the connectors of the wire harness and inverter water pump assembly (with motor) to prevent the entry of coolant.

    3. Remove the 2 bolts and inverter water pump assembly (with motor).
      GTY815701Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002