LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2021 >> LS 500 Base, AWD >> Repair and Diagnosis >> Suspension >> Suspension Control Systems >> Suspension Control System - Service Information >> Height Control Compressor >> Removal [12/2017 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Removal [12/2017 - ]: Procedure

  1. AIR SUSPENSION CONTROL PROHIBITED 

    HINT: 

    Check each part and system if an error is displayed for air movement pattern C.

    1. Connect the Techstream to the DLC3 with the engine switch off.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on and enter the following menus: Chassis / Air suspension / Utility / Air Transfer Pattern C.

      Chassis > Air suspension > Utility 

      Tester Display
      Air Transfer Pattern C
    4. Perform vehicle height control prohibition and air movement according to the instructions on the Techstream.
    5. Discharge remaining pneumatic tank pressure:
      1. Remove the luggage compartment floor mat.

        Refer to PROCEDURE - Step 23 [12/2017 - 10/2020] , or refer to PROCEDURE - Step 24 [10/2020 - 10/2022] , or refer to PROCEDURE - Step 24 [10/2022 - ]

      2. Remove the service valve cap.
        GTY837863Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Discharge the remaining pressure by pushing the center of the service valve.
        GTY778313Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT: 

        Do not release the remaining pressure at once. Release it over several steps.

    6. Install the luggage compartment floor mat.

      Refer to PROCEDURE - Step 12 [12/2017 - 10/2020] , or refer to PROCEDURE - Step 12 [10/2020 - ]

  2. REMOVE NO. 1 FLOOR UNDER COVER 

    Refer to PROCEDURE - Step 1

  3. REMOVE W/O RELAY COMPRESSOR AND DRYER ASSEMBLY 
    NOTE:

    When discarding w/o relay compressor and dryer assembly, remove the No. 1 height control tube and No. 2 height control tube in order to release the pressure inside the compressor.

    1. Disconnect the 2 connrctors.
      GTY786497Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Slide the clip and disconnect the height control hose from the height control wey.
      GTY829767Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Using SST, disconnect the No. 5 height control tube.
      • SST: 09730-00020 
      GTY829600Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 5 height control tube
      *2 No. 9 height control tube

      Refer to PRECAUTION [12/2017 - ]

    4. Using SST, disconnect the No. 9 height control tube.
      • SST: 09730-00020 

      Refer to PRECAUTION [12/2017 - ]

    5. Remove the 4 nuts and w/o relay compressor and dryer assembly.
      GTY786492Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Detach the claw.
      GTY834761Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Rotate the clip and remove it from the stud bolt.

      HINT: 

      Leave the clip on the compressor.

  4. REMOVE HEIGHT CONTROL COMPRESSOR BRACKET 
    1. Remove the 2 nuts and height control compressor bracket.
      GTY809389Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE NO. 2 HEIGHT CONTROL TUBE 
    1. Using SST, remove the No. 2 height control tube from the w/o relay compressor and dryer assembly and No. 3 height control valve assembly.
      • SST: 09730-00020 

      Refer to PRECAUTION [12/2017 - ]

      GTY832494Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Natural
      *b Black
    2. Detach the clamp from the No. 3 height control valve assembly
  6. REMOVE NO. 1 HEIGHT CONTROL TUBE 
    1. Using SST, remove the No. 1 height control tube from the w/o relay compressor and dryer assembly and No. 3 height control valve assembly.
      • SST: 09730-00020 

      Refer to PRECAUTION [12/2017 - ]

      GTY793695Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Natural
      *b Black
  7. REMOVE HEIGHT CONTROL HOSE ASSEMBLY 
    1. Slide the clip and disconnect the height control hose from the height control wey.
      GTY786498Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Cut the cable tie.
    3. Remove the height control hose from the w/o relay compressor and dryer assembly.
  8. REMOVE HEIGHT CONTROL WAY 
    1. Detach the claw and remove the height control way from the compressor bracket.
      GTY786499Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE HEIGHT CONTROL VALVE HARNESS ASSEMBLY 
    1. Disconnect the 3 connectors.
      GTY786501Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Detach the 2 clamps.
    3. Disconnect the 9 clamps and remove the height control valve harness assembly.
      GTY786900Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. w/ Cable Tie:
      1. Cut the cable tie.
  10. REMOVE NO. 1 HEIGHT CONTROL COMPRESSOR 
    1. Disconnect the 2 clamps.
      GTY786896Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Detach the claw and disconnect the connector.
    3. Cut the cable tie.
    4. Remove the 3 nuts, No. 3 height control compressor bracket and No. 1 height control compressor.
      GTY808680Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Plate Washer
      *2 Height Control Compressor Bush
      *3 Collar
      *4 Height Control Compressor Compression Spring
    5. Remove the plate washer, collar, 5 height control compressor bushes and 5 height control compressor compression spring.
  11. REMOVE NO. 3 HEIGHT CONTROL VALVE 
    1. Remove the 2 nuts, height control valve bracket and No. 3 height control valve assembly.
      GTY786897Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 height control valve bushes.
      GTY802916Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Height Control Valve Bush
    3. Remove the 4 height control valve cushions.
      GTY786888Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About LEMON Manuals