Scion 2005-06

Bleeding the ABS System

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Refer to the Bleeding Procedures located at the beginning of this section.

Bleeding The Brake Actuator-With Vsc




NOTE
After bleeding air from the brake system, the height and/or feel of the pedal may still be awkward. If so, use the hand-held tester to bleed air from the actuator (see below).

Perform the air bleeding by following the steps displayed on the hand-held tester. Make sure that the fluid in the reservoir does not become empty.


WARNING
Clean, high quality brake fluid is essential to the safe and proper operation of the brake system. You should always buy the highest quality brake fluid that is available. If the brake fluid becomes contaminated, drain and flush the system, then refill the master cylinder with new fluid. Never reuse any brake fluid. Any brake fluid that is removed from the system should be discarded. Also, do not allow any brake fluid to come in contact with a painted surface; it will damage the paint.

  1. Fill the brake master cylinder reservoir with brake fluid. Use SAE J1703 or FMVSS No. 116 DOT3 brake fluid.
  2.  
  3. With the engine stopped, depress the pedal more than 20 times.
  4.  
  5. Connect the hand-held tester to the DLC3, and then turn the ignition switch ON .
    WARNING
    Do NOT start the engine.



    Click image to see an enlarged view

    Fig. Connect a hand-held tester to the DLC, turn the ignition ON, but do NOT start the engine

  6.  
  7. Select -AIR BLEEDING- on the hand-held tester.
    NOTE
    Please refer to the hand-held tester operator-s manual for further operating instructions.

  8.  
  9. Bleed air from the brake line in -Step 1: Increase- on the hand-held tester display:
    1. Remove the bleeder plug cap.
    2.  
    3. Connect a vinyl tube to either one of the bleeder plugs.
    4.  
    5. Depress the pedal several times, and then loosen the bleeder plug with the pedal depressed.
    6.  
    7. When fluid stops coming out, immediately tighten the bleeder plug. Then release the pedal.
    8.  
    9. Repeat steps the previous 2 steps until all the air in the brake line is gone.
    10.  
    11. Tighten the bleeder plug to 73 inch lbs. (8.3 Nm).
    12.  
    13. Install the cap.
    14.  
    15. Repeat the procedure to bleed the air from the brake line at each wheel.
    16.  

  10.  
  11. Bleed air from the suction line in -Step 2: Inhalation- on the hand-held tester display.
    1. Remove the bleeder plug cap.
    2.  
    3. Connect a vinyl tube to the bleeder plug at the right front wheel or the right rear wheel and loosen the bleeder plug.
    4.  
    5. Using the hand-held tester, operate the actuator to bleed the air.
      NOTE
      The operation stops automatically in 4 seconds. At this time, be sure to release the pedal.

    6.  
    7. View the hand-held tester display and check that the operation has stopped.
    8.  
    9. Repeat the previous steps until all the air in the fluid is gone.
    10.  
    11. Tighten the bleeder plug to 73 inch lbs. (8.3 Nm).
    12.  
    13. Install the cap.
    14.  
    15. Repeat the procedure to bleed air from the brake line for each wheel.
    16.  

  12.  
  13. Bleed air from the pressure reduction line in -Step 3: Decrease- on the hand-held tester display:
    1. Remove the bleeder plug cap.
    2.  
    3. Connect a vinyl tube to either one of the bleeder plugs.
    4.  
    5. Loosen the bleeder plug.
    6.  
    7. Using the hand-held tester, operate the actuator. At the same time, completely depress the pedal and maintain this position.
      NOTE
      The operation stops automatically in 4 seconds. When performing this procedures continuously, an interval of at least 20 seconds is required. When the operation is completed, the pedal slightly goes down. This is normal and is caused when the solenoid opens. During this procedure, the pedal may seem heavy, but completely depress it so that the fluid comes out from the bleeder plug. Be sure to keep depressing the pedal. Never depress and release the pedal repeatedly.

    8.  
    9. Tighten the bleeder plug to 73 inch lbs. (8.3 Nm), and then release the pedal.
    10.  
    11. Repeat the previous 3 steps until all the air in the fluid is gone.
    12.  
    13. Install the cap.
    14.  
    15. Repeat the procedure to bleed the air from the brake line at each wheel.
    16.  

  14.  
  15. Bleed air from the brake line again in -Step 4: Increase- on the hand-held tester display:
    1. Remove the bleeder plug cap.
    2.  
    3. Connect a vinyl tube to either one of the bleeder plugs.
    4.  
    5. Depress the pedal several times, and then loosen the bleeder plug with the pedal depressed.
    6.  
    7. When fluid stops coming out, immediately tighten the bleeder plug. Then release the pedal.
    8.  
    9. Repeat the steps until all the air in the fluid is gone.
    10.  
    11. Tighten the bleeder plug to 73 inch lbs. (8.3 Nm).
    12.  
    13. Install the cap.
    14.  
    15. Repeat the procedure to bleed air from the brake line at each wheel.
    16.  

  16.  
  17. Check the fluid level in the brake fluid reservoir and add fluid if necessary.
  18.  

 
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