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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating / Air Conditioning System - Service Information (3 Of 3) >> MAGNET VALVE (for Three-Way Valve) >> Removal [08/2023 - ] >> Procedure

Removal [08/2023 - ]: Procedure

  1. DRAIN ENGINE COOLANT (for Engine) 

    Refer to PROCEDURE - Step 4

  2. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM 

    Refer to PROCEDURE - Step 2

  3. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY 

    Refer to REMOVAL [10/2022 - ]

  4. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 3

  5. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 19

  6. REMOVE HEATER WATER HOSE 
    1. GTY1206802Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using pliers, grip the claws of the 2 clips and slide the 2 clips to remove the heater water hose.
        NOTE:
        • Do not apply excessive force to the heater water hose.
        • Prepare a drain pan or cloth in case the coolant leaks.
  7. DISCONNECT HEATER WATER HOSE 
    1. GTY1207653Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using pliers, grip the claws of the clip and slide the clip to disconnect the heater water hose.
        NOTE:
        • Do not apply excessive force to the heater water hose.
        • Prepare a drain pan or cloth in case the coolant leaks.
  8. DISCONNECT NO. 1 COOLER REFRIGERANT SUCTION HOSE 
    See step  3
  9. REMOVE AIR CONDITIONING HOSE AND ACCESSORY 
    1. GTY1207300Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the bolt, nut and air conditioning hose and accessory.
      2. Remove the 2 O-rings from the air conditioning hose and accessory.
        NOTE:

        Seal the openings of the disconnected parts using vinyl tape to prevent entry of moisture and foreign matter.

  10. DISCONNECT HEATER WATER HOSE L 
    1. GTY1207103Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using pliers, grip the claws of the clip and slide the clip to disconnect the heater water hose L.
        NOTE:
        • Do not apply excessive force to the heater water hose L.
        • Prepare a drain pan or cloth in case the coolant leaks.
  11. DISCONNECT INLET HEATER WATER HOSE A 
    1. GTY1207137Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disengage the clamp.
      2. Using pliers, grip the claws of the clip and slide the clip to disconnect the inlet heater water hose A.
        NOTE:
        • Do not apply excessive force to the inlet heater water hose A.
        • Prepare a drain pan or cloth in case the coolant leaks.
  12. DISCONNECT OUTLET HEATER WATER HOSE 
    1. GTY1206792Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE HEATER ACCESSORY ASSEMBLY 
    1. GTY1207464Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. REMOVE HEATER WIRING 
    1. GTY1206436Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. REMOVE HEATER WATER VALVE ASSEMBLY 
    1. GTY1206454Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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