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Home >> Lexus >> 2019 >> LS 500 Base, RWD >> Repair and Diagnosis >> Maintenance >> Procedures >> Maintenance - Service Information (2 Of 2) >> FRONT DISC BRAKE PAD (except 6-Pot Caliper) >> Removal [12/2017 - 10/2023] >> Procedure

Removal [12/2017 - 10/2023]: Procedure

  1. PRECAUTION (w/o Vacuum Brake Booster) 
    NOTE:
    • When the brake pedal is first depressed after replacing the brake pads or pushing back the disc brake piston, DTC C1341, C1342, C1343 and/or C1344 may be stored. As there is no malfunction, clear the DTCs.
    • While the battery is connected, even if the engine switch is off, the brake control system activates when the brake pedal is depressed or the door courtesy switch is turned on. Therefore, even if only brake pads are to be removed and installed, be sure to remove the brake booster pump connectors before beginning work.
  2. DRAIN BRAKE FLUID 
    NOTE:

    If brake fluid leaks onto any painted surface, immediately wash it off.

  3. DISCONNECT BRAKE BOOSTER PUMP CONNECTOR (w/o Vacuum Brake Booster) 

    Refer to PROCEDURE - Step 2 [12/2017 - 09/2018] , or refer to PROCEDURE - Step 2 [09/2018 - 10/2020] , or refer to PROCEDURE - Step 2 [10/2020 - 10/2022] , or refer to PROCEDURE - Step 2 [10/2022 - 10/2023]

  4. REMOVE FRONT WHEEL 

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

  5. REMOVE FRONT DISC BRAKE PAD 
    WARNING:

    Be careful not to get pinched by the disc brake cylinder assembly or other parts when removing the front disc brake pads.

    NOTE:

    Be sure to inspect the front disc when replacing the front disc brake pads with new ones.

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

    1. for RH side:
      1. Disconnect the front pad wear indicator wire connector assembly RH from the front skid control sensor wire.
        GTY834055Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Disconnect the clamp (A) from the front disc brake dust cover RH.
        GTY829242Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Disconnect the bleeder plug cap (B) from the disc brake cylinder assembly RH.
    2. While pressing the area (A), push the hole pin (B) toward the disk brake cylinder assembly LH, and remove the pin hold clip.
      GTY789870Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. While pressing the area (A), remove the 2 hole pins (B) and No. 1 anti-rattle spring.
      GTY831682Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the anti-squeal spring.
    5. Remove the 2 front disc brake pads from the disk brake cylinder assembly LH.
      GTY798691Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. for RH side:
      1. Detach the pad wear indicator retainer and remove the pad wear indicator wire assembly RH from the front disc brake pad.
        GTY798690Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE FRONT DISC BRAKE ANTI-SQUEAL SHIM 
    1. Remove the No. 1 and No. 2 anti-squeal shims from each of the front disc brake pads.
      GTY779949Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Front Disc Brake Pad
      *2 No. 1 Anti-Squeal Shim
      *3 No. 2 Anti-Squeal Shim
      *4 Inner Anti-Rattle Spring
    2. Remove the inner anti-rattle springs from each of the front disc brake pads.
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