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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating / Air Conditioning System - Service Information (3 Of 4) >> COMPRESSOR (for AWD) >> Removal [10/2022 - 10/2023] >> Procedure

Removal [10/2022 - 10/2023]: Procedure

  1. PRECAUTION 
    NOTE:
    • The connector for the type A compressor with motor assembly has cooler compressor packing applied as shown in the illustration. Do not remove the cooler compressor packing.
      GTY801179Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for Type A *B for Type B
      *a Rib - -
      Cooler Compressor Packing - -
    • If the cooler compressor packing has been peeled off, apply new cooler compressor packing.
  2. REMOVE V-BANK COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 12

  3. REMOVE RADIATOR COVER PLATE 

    Refer to PROCEDURE - Step 1

  4. REMOVE UPPER RADIATOR SUPPORT SEAL 

    Refer to PROCEDURE - Step 2

  5. REMOVE LOWER RADIATOR AIR DEFLECTOR 

    Refer to PROCEDURE - Step 3

  6. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM 
    1. for HFC-134a (R134a):

      Refer to PROCEDURE - Step 4

    2. for HFO-1234yf (R1234yf):

      Refer to PROCEDURE - Step 4

  7. REMOVE SERVICE PLUG GRIP 

    Refer to REMOVAL [10/2022 - 10/2023]

  8. CHECK TERMINAL VOLTAGE 
    1. Remove the connector cover assembly.

      Refer to PROCEDURE - Step 12

    2. Check the terminal voltage.

      Refer to PROCEDURE - Step 13

    3. Install the connector cover assembly.

      Refer to PROCEDURE - Step 15

  9. REMOVE RADIATOR SUPPORT TO CROSSMEMBER BRACE SUB-ASSEMBLY LH 
    1. Remove the 2 bolts and radiator support to crossmember brace sub-assembly LH.
      GTY837321Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE ECM 

    Refer to PROCEDURE - Step 6

  11. REMOVE SUCTION HOSE SUB-ASSEMBLY 
    1. Remove the bolt, nut and suction hose sub-assembly from the compressor with motor assembly.
      GTY832186Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut
      NOTE:

      Do not apply excessive force to the suction hose sub-assembly.

    2. Remove the 2 O-rings from the suction hose sub-assembly.
      NOTE:

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

  12. DISCONNECT DISCHARGE HOSE SUB-ASSEMBLY 
    1. Remove the bolt and disconnect the discharge hose sub-assembly from the compressor with motor assembly.
      GTY814548Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not apply excessive force to the discharge hose sub-assembly.

    2. Remove the O-ring from the discharge hose sub-assembly.
      NOTE:

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

  13. REMOVE NO. 13 CONNECTOR HOLDER 
    1. Disconnect the 2 connectors.
      GTY970632Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Slide the green-colored lock of the connector (A) as shown in the illustration to release it and disconnect the connector.
      GTY971287Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Green-colored Lock
      Connector (A)
      Slide
      WARNING:

      Make sure to wear insulating gloves.

      NOTE:

      Insulate the disconnected terminals and connector with vinyl tape.

    3. Disconnect the connector (B) and connector (C).
      GTY970518Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Clamp
      *b Guide
      Connector (B)
      Connector (C)
    4. Detach the clamp and guide and remove the No. 13 connector holder.
  14. REMOVE COMPRESSOR WITH MOTOR ASSEMBLY 
    1. Disconnect the connector (D).
      GTY808865Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt (A)
      Connector (D)
    2. Remove the bolt (A) and disconnect the wiring harness clamp bracket (bolt (A) fastening side).
    3. Remove the bolt (B) and disconnect the wiring harness clamp bracket (bolt (B) fastening side).
      GTY802833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Green-colored Lock
      Bolt (B)
      Connector (E)
      Slide
    4. Slide the green-colored lock of the connector (E) as shown in the illustration to release it and disconnect the connector.
      WARNING:

      Make sure to wear insulating gloves.

      NOTE:

      Insulate the disconnected terminals and connector with vinyl tape.

    5. Remove the 2 nuts and 2 bolts.
      GTY837323Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Nut
      Bolt
    6. Using an E8 "TORX" socket wrench, remove the 2 stud bolts and compressor with motor assembly.
      GTY814552Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not drop or subject the parts to any impact.