BRAKE BOOSTER(for TMMF Made LHD) ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT BRAKE BOOSTER


    1. A01VI0SE05
      Text in Illustration
      *a CORRECT
      *b INCORRECT
      *c 1st
      *d 2nd
      *e 3rd

      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 times cannot be depressed as far, the booster is airtight. If not, inspect the vacuum check valve.

        • If the vacuum check valve is normal, replace the brake booster assembly.

      2. Depress the brake pedal while the engine is running, and stop the engine with the brake 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. If not, inspect the vacuum check valve.

        • If the vacuum check valve is normal, replace the brake booster assembly.

    2. A01VJIB

      Operation check


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

      2. A01VKNS

        Depress and hold down the pedal, and start the engine.

        Tech Tips


        • If the pedal goes down slightly, operation is normal. If not, inspect the vacuum check valve.

        • If the vacuum check valve is normal, replace the brake booster assembly.