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Home >> Lexus >> 2019 >> LS 500 Base, AWD >> Repair and Diagnosis (Single Page) >> Steering >> Steering Control Systems >> Dynamic Rear Steering System - Service Information >> Dynamic Rear Steering Actuator >> Removal [12/2017 - 09/2018] >> Procedure

Removal [12/2017 - 09/2018]: Procedure

  1. PRECAUTION 
    NOTE:

    After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Refer to PRECAUTION [12/2017 - 10/2020]

  2. AIR SUSPENSION CONTROL PROHIBITED (w/ Air Suspension) 

    Refer to PRECAUTION [12/2017 - ]

  3. REMOVE LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 24

  4. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 

    Refer to PROCEDURE - Step 3

    NOTE:

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

    Refer to INITIALIZATION [12/2017 - 09/2018]

  5. REMOVE TOOL BOX 

    Refer to PROCEDURE - Step 27

  6. REMOVE LUGGAGE COMPARTMENT FLOOR MAT 

    Refer to PROCEDURE - Step 23

  7. REMOVE LOWER INNER LUGGAGE COMPARTMENT TRIM COVER 

    Refer to PROCEDURE - Step 28

  8. REMOVE BATTERY CARRIER CATCH BRACKET SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 20

  9. REMOVE NO. 1 FLOOR UNDER COVER 

    Refer to PROCEDURE - Step 1

  10. REMOVE REAR WHEELS 

    Refer to REMOVAL [12/2017 - 10/2023]

  11. DISCONNECT REAR STEERING TIE ROD ASSEMBLY LH 
    1. GTY794333Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the nut.

    2. Remove the bolt and disconnect the skid control sensor wire.
    3. Install 2 spacers (SST spacer B) as shown in the illustration.
      • SST: 09960-20010 
        1. 09961-02060
      GTY775169Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 1 mm (0.0394 in.)
      NOTE:
      • Be sure to install SST to prevent the spacer of the rear axle carrier sub-assembly from coming off.
      • Make sure that the clearance between the rear axle assembly and spacers (SST spacer B) is 1 mm (0.0394 in.) or more to prevent damage to SST.
    4. Using SST, separate the rear steering tie rod assembly LH from the rear axle carrier sub-assembly as shown in the illustration.
      • SST: 09960-20010 
        1. 09961-02010
      GTY781790Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Nut *b Spacer
      *c Tie string without any slack *d Place wrench here
      Turn Molybdenum Grease
      WARNING:

      Apply molybdenum grease to the threads and the tip of SST bolt.

      NOTE:
      • Install SST so that (A) and (B) shown in the illustration are parallel. Otherwise, the ball joint dust cover may be damaged.
      • Be sure to place the wrench on the part shown in the illustration.
      • Be sure to tighten the string firmly to secure SST to the rear upper control arm assembly to prevent SST from falling off.
      • Make sure that SST is securely positioned on the spacer.
      • Do not damage the rear steering tie rod assembly LH ball joint dust cover.
      • If the spacer has come off, replace the rear axle carrier sub-assembly and rear steering link assembly with a new one.
  12. DISCONNECT REAR STEERING TIE ROD ASSEMBLY RH 

    HINT: 

    Perform the same procedure as for the LH side.

  13. REMOVE EXHAUST TAILPIPE ASSEMBLY 

    Refer to REMOVAL [12/2017 - ]

  14. REMOVE REAR STEERING LINK ASSEMBLY 
    1. Disconnect the 2 connectors from the rear steering control ECU.
      GTY807475Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Lock of the Lock Lever
      *b Lock Lever

      HINT: 

      When disconnecting the connector with lock lever, pull out the lock of the lock lever and turn the lock lever as shown in the illustration.

    2. Disengage the clamp.
    3. GTY823338Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the nut.

    4. Disconnect the grommet.
    5. Remove the 4 bolts and rear steering link assembly.
      GTY794324Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not drop the rear steering link assembly.

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