BRAKE BOOSTER ON-VEHICLE INSPECTION


  1. INSPECT BRAKE BOOSTER ASSEMBLY


    1. A015YYJE01

      Airtightness check.


      1. Start the engine and stop it after 1 or 2 minutes. Slowly depress the brake pedal several times.

        Tech Tips

        If the pedal can be depressed to the floor the first time, but on the 2nd and 3rd time cannot be depressed as far, the booster is airtight.

      2. Depress the brake pedal while the engine is running, and stop the engine with the pedal depressed.

        Tech Tips

        If there is no change in the pedal reserve distance while holding the pedal for 30 seconds, the booster is airtight.

    2. A015YQQ

      Operation check.


      1. Depress the brake pedal several times with the engine switch off and check that there is no change in the pedal reserve distance when the pedal is depressed.

      2. Start the engine with the brake pedal depressed.

        Tech Tips

        If the pedal goes down slightly, operation is normal.