BRAKE BOOSTER PUMP(for LHD) REMOVAL

Info Added 2017-10-06

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during brake booster pump assembly removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Auxiliary battery terminal is disconnected/reconnected Memorize steering angle neutral point Lane departure alert system (w/ Steering Control)

Click here

Simple intelligent parking assist system*1
Toyota parking assist-sensor system*1
Pre-collision system
Initialize back door lock Power door lock control system

Click here

*1: When performing learning using the GTS.

Click here

Note

While the auxiliary battery is connected, even if the power switch is off, the brake control system activates when the brake pedal is depressed or any door courtesy switch turns on. Therefore, when servicing the brake system components, do not operate the brake pedal or open/close the doors while the auxiliary battery is connected.

PROCEDURE


  1. REMOVE BRAKE ACTUATOR ASSEMBLY

    Click here

  2. SEPARATE NO. 1 BRAKE ACTUATOR TUBE


    1. A001OBF

      Remove the 2 nuts and separate the No. 1 brake actuator tube.

  3. REMOVE ACCUMULATOR TO BRAKE MASTER CYLINDER TUBE


    1. A001RAP

      Using a union nut wrench, disconnect the accumulator to brake master cylinder tube from the brake booster with master cylinder assembly.

    2. A001O5K

      Disengage the 6 clamps to remove the No. 1 brake tube clamp from the accumulator to brake master cylinder tube and brake lines.

      Note

      Do not kink or damage the brake lines.

    3. A001RM4C01
      *a Clamp Cover

      Disengage the claw to separate the clamp cover.

    4. Disengage the 6 clamps to separate the No. 2 brake tube clamp from the accumulator to brake master cylinder tube and brake lines.

      Note

      Do not kink or damage the brake lines.

    5. Disenga the clamp to remove the No. 2 brake tube clamp from the vehicle body.

    6. Disengage the 6 clamps to remove the No. 1 brake tube clamp from the accumulator to brake master cylinder tube and brake lines.

      Note

      Do not kink or damage the brake lines.

    7. Remove the accumulator to brake master cylinder tube.

  4. REMOVE BRAKE BOOSTER PUMP ASSEMBLY


    1. A001QD4

      Disengage the clamp to separate the No. 3 front brake tube from the brake actuator bracket assembly.

    2. A001PUS

      Remove the 2 nuts.

    3. Remove the bolt of the brake actuator bracket assembly.

      A001R1CC01
      *1 Union *2 Connector
      *3 Wire Harness *4 Stud
      B0048R7 Remove in this Direction (1) B0048O3 Remove in this Direction (2)

    4. Remove the brake booster pump assembly as shown in the illustration.

      Note


      • Do not apply excessive force to the brake lines or refrigerant lines.

      • Do not carry the brake booster pump assembly by the parts shown in the illustration.

      • Do not drop the brake booster pump assembly when carrying it.

      • Be careful not to allow brake fluid to enter the connector.

      Tech Tips

      Move the brake actuator bracket assembly as necessary to allow the brake booster pump assembly to be removed.

    5. Remove the brake actuator bracket assembly from the vehicle body.

      Note

      Do not apply excessive force to the brake lines or refrigerant lines.

    6. A002Z08

      Remove the brake actuator case collar and brake booster pump bushing from the brake actuator bracket assembly.

  5. REMOVE NO. 1 BRAKE ACTUATOR HOSE


    1. A001OHL

      Slide the clip and remove the No. 1 brake actuator hose from the brake booster pump assembly.

  6. REMOVE NO. 1 BRAKE TUBE CLAMP BRACKET


    1. A001OL6

      Remove the bolt and No. 1 brake tube clamp bracket from the brake booster pump assembly.