LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2008 >> GS 450h >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control >> Brake Actuator >> Removal
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Brake Actuator: Removal

  1. REMOVE COOL AIR INTAKE DUCT SEAL  (See REMOVAL )
  2. REMOVE ENGINE ROOM SIDE COVER RH  (See REMOVAL )
  3. REMOVE ENGINE ROOM SIDE COVER LH  (See REMOVAL )
  4. REMOVE FRONT PILLAR TO FRONT SIDE SEAL SUB-ASSEMBLY LH  (See REMOVAL )
  5. REMOVE FRONT PILLAR TO FRONT SIDE SEAL SUB-ASSEMBLY RH  (See REMOVAL )
  6. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH  (See REMOVAL )
  7. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY RH  (See REMOVAL )
  8. REMOVE FRONT FENDER TO COWL SIDE SEAL LH  (See REMOVAL )
  9. REMOVE FRONT FENDER TO COWL SIDE SEAL RH  (See REMOVAL )
  10. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY  (See REMOVAL )
  11. PERFORM ACCUMULATOR PRESSURE ZERO DOWN  (See BLEEDING )
  12. SET BRAKE CONTROL OFF 
    NOTE:
    • Prohibit the brake control certainly before air bleeding.
    • Be sure to remove the 2 ABS motor relays first, then the brake actuator.
    1. With the power switch OFF to prohibit brake control, remove the 2 ABS motor relays.
      NOTE: If the pump motor operates with air remaining inside the brake actuator hose, the air will enter the actuator and cause resulting in difficulty in air bleeding.
      Fig 1: Locating ABS Motor Relays
      G05816406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
    NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See INITIALIZATION ).
  14. DRAIN BRAKE FLUID 
    NOTE: If brake fluid leaks onto any painted surface, wash or remove it completely.
  15. REMOVE SKID CONTROL ECU  (See REMOVAL  )
  16. DISCONNECT ENGINE ROOM NO. 3 RELAY BLOCK 
  17. REMOVE FRONT WHEEL LH 
  18. REMOVE BRAKE ACTUATOR ASSEMBLY WITH ACTUATOR BRACKET 
    1. Using SST, disconnect the 6 brake tubes from the actuator.

      SST 09023-00101 

    2. Remove the clip and No. 1 reservoir tube.
      Fig 2: Disconnecting Brake Tubes From Actuator
      G05816407Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Use tags or make a note to identify the places to reconnect.
      Fig 3: Identifying Places To Reconnect Tube
      G05816408Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Using SST, disconnect the No. 1 and No. 2 brake tube.

      SST 09023-00101 

      NOTE: Do not damage the No. 1 and No. 2 brake tube.
      Fig 4: Disconnecting Brake No.1 And No.2 Tube
      G05816409Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Release the lock lever and disconnect the actuator connector.
    6. Remove the 2 bolts, nut and brake actuator with bracket.
      NOTE: Do not damage the brake tubes.
      Fig 5: Identifying Brake Actuator With Bracket
      G05816410Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About LEMON Manuals