BRAKE ACTUATOR ON-VEHICLE INSPECTION


  1. CONNECT INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Start the engine and run it at idle.

    3. Turn the intelligent tester on.

    4. Enter the following menus: Chassis / ABS/VSC/TRC / Active Test.

      Tech Tips

      Refer to the intelligent tester operator's manual for further details.

  2. INSPECT ACTUATOR MOTOR OPERATION


    1. Enter the following menus: Active Test / Motor Relay.

    2. Turn the motor relay on, and check for actuator motor operation sounds.

      Note

      Do not keep the motor relay on continuously for more than 5 seconds. If it needs to be operated repeatedly, set an interval of more than 20 seconds between operations.

    3. Turn the motor relay off.

    4. Fully depress the brake pedal and hold it for approximately 15 seconds. Check that the pedal's initial depth is maintained for the entire 15 seconds.

    5. Turn the motor relay on, and check that the pedal does not pulsate.

    6. Turn the motor relay off and release the brake pedal.

  3. INSPECT RIGHT FRONT WHEEL OPERATION


    1. Enter the following menus: Active Test / SFRH or SFRR.

    2. Depress the brake pedal and hold it.

      Note

      Do not turn on a solenoid in a manner different than that shown in the following steps.

    3. Turn the SFRH and SFRR solenoids on simultaneously, and check that the pedal cannot be depressed further.

      Note

      Each solenoid operates for 2 seconds and turns off automatically. If it needs to be operated repeatedly, set an interval of more than 20 seconds between operations.

    4. Turn the SFRH and SFRR solenoids off simultaneously, and check that the pedal can be depressed.

    5. With the pedal still depressed, turn the motor relay on and check that the pedal returns.

      Note

      Do not keep the motor relay on continuously for more than 5 seconds. If it needs to be operated repeatedly, set an interval of more than 20 seconds between operations.

    6. Turn the motor relay off and release the brake pedal.

  4. INSPECT OTHER WHEEL OPERATION


    1. Using the same procedure, check the solenoids of the other wheels.

      Tech Tips


      • Left front wheel: SFLH, SFLR

      • Right rear wheel: SRRH, SRRR

      • Left rear wheel: SRLH, SRLR