Toyota 4Runner 2001-06

Bleeding the ABS System

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If the brake master cylinder is disassembled, if the brake line is disconnected from the brake master cylinder if the reservoir become empty, bleed the brake master cylinder.

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Fig. Connect the ABS Actuator Checker to the brake master cylinder wiring harness, via a Sub-Wiring harness.

  1. Disconnect the 2 connectors from the brake master cylinder.
  2.  
  3. Connect the actuator checker (SST) to the brake master cylinder side wire harness via the sub- wire harness. Connect the connector with the label of -AIR BLEED- attached to the connector of actuator checker. Connect the red cable of the checker to the battery positive (+) terminal and the black cable to the negative (-) terminal.
  4.  
  5. Turn the ignition switch to OFF, depress the brake pedal more than 40 times.
    NOTE
    When a pressure in power supply system is released, reaction force becomes light and stroke becomes longer.

  6.  
  7. Turn the ignition switch to ON, check that the pump stops after 30 to 40 sec. If the pump does not stop, repeat step 3 again.
  8.  
  9. With the ignition switch remained ON, depress the brake pedal more than 20 times.
  10.  
  11. Follow the standard procedure located in -Brake Operating System, Bleeding the Brake System- and bleed the right and left front wheel caliper.
  12.  
  13. Keep depressing the brake pedal depressed, bleed the right and left rear brake caliper.
    NOTE
    It is not necessary to depress the pedal continuously, because brake fluid flows out by first depressing.

  14.  
  15. Bleed right front brake line.
    1. Turn the selector switch of the actuator checker to he -FRONT RH- position.
    2.  
    3. Push and hold in MAIN push switch, depress the brake pedal and hold it to bleed the right front brake caliper.
      NOTE
      Do not keep the MAIN switch pushed in for more than 10 seconds. When operating it continuously, set the interval of more than 20 seconds.

    4.  
    5. Repeat until air bubbles in the fluid are gone.
    6.  

  16.  
  17. Bleed left front brake line.
    1. Turn the selector switch of the actuator checker to the -FRONT LH- position.
    2.  
    3. Push and hold in the MAIN push switch, depress the brake pedal and hold it to bleed the left front brake caliper.
    4.  
    5. Repeat until air bubbles in the fluid are gone.
    6.  

  18.  
  19. Bleed right rear brake line.
    1. Push and hold in the -SUB LH- and -SUB RH- switches, bleed the right rear brake caliper.
    2.  
    3. Repeat until air bubbles in the fluid are gone.
    4.  

  20.  
  21. Bleed left rear brake line.
    1. Push and hold in the -SUB LH- and -SUB RH- switches, bleed the right rear brake caliper.
    2.  
    3. Repeat until air bubbles in the fluid are gone.
    4.  

  22.  
  23. Disconnect the actuator checker and sub-wire harness from the brake master cylinder.
  24.  
  25. Reconnect the two connectors to the brake master cylinder.
  26.  

 
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