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Brake Override System [06/2016 - ]: Procedure

  1. CHECK DTC OUTPUT 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON and turn the Techstream on.
    3. Enter the following menus: System Select / Health Check.
    4. Check DTCs.
      RESULT

      Result Proceed to
      DTCs are not output A
      DTC is output B

    Result: 

    GO TO DTC CHART 

    Refer to DTC INDEX

    Result: 

    See step  2

  2. READ VALUE USING TECHSTREAM (MASTER CYLINDER SENSOR) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON and turn the Techstream on.
    3. Enter the following menus: Chassis / ABS/VSC/TRC / Data List / Master Cylinder Sensor.
    4. Read the value displayed on the Techstream.
      Techstream Display Measurement Item/Range Normal Condition
      Master Cylinder Sensor Master cylinder pressure sensor reading/
      Min.: 0.00 V, Max.: 5.00 V
      • Brake pedal released: 0.20 to 0.40 V
      • Reading increases when brake pedal is depressed
    5. Check that the brake fluid pressure value of the "Master Cylinder Sensor" observed on the Techstream changes when the brake pedal is depressed.

      OK

      When the pedal is depressed, the voltage displayed on the Techstream increases.

    Result: 

    NG 

    CHECK BRAKE ACTUATOR ASSEMBLY 

    Result: 

    OK 

    See step  3

  3. READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH AND ST1) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON and turn the Techstream on.
    3. Enter the following menus: Powertrain / Engine / Data List / Stop Light Switch and ST1.
    4. Check the Data List indication when the brake pedal is depressed and released.

      OK

      Techstream Display Condition Specified Condition
      Stop Light Switch Brake pedal released OFF
      Brake pedal depressed ON
      ST1 Brake pedal released OFF
      Brake pedal depressed ON

    Result: 

    NG 

    INSPECT STOP LIGHT SWITCH ASSEMBLY 

    (Refer to INSPECTION [06/2016 - ] )

    Result: 

    OK 

    See step  4

  4. INSPECT BRAKE PEDAL 
    1. Inspect and adjust the brake pedal (for Manual Transmission) (Refer to ADJUSTMENT [06/2016 - ] ).
    2. Inspect and adjust the brake pedal (for Automatic Transmission) (Refer to ADJUSTMENT [06/2016 - ] ).

      HINT: 

      If the stop light switch turns ON too late, the start of brake override system control may be delayed; if it turns ON too soon, brake override system control may begin too early, so conduct inspection of the brake pedal and stop light switch assembly.

      Result

      Result Proceed to
      OK A
      NG (for Manual Transmission) B
      NG (for Automatic Transmission) C

    Result: 

    REPAIR OR REPLACE BRAKE PEDAL 

    (Refer to REMOVAL [06/2016 - ] )

    Result: 

    REPAIR OR REPLACE BRAKE PEDAL 

    (Refer to REMOVAL [06/2016 - ] )

    Result: 

    See step  5

  5. READ VALUE USING TECHSTREAM (ACCELERATOR PEDAL POSITION SENSOR) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON and turn the Techstream on.
    3. Enter the following menus: Powertrain / Engine / Data List / Accel Sens. No. 1 Volt % and Accel Sens. No. 2 Volt %.
    4. Read the value displayed on the Techstream.

      OK

      Techstream Display Condition Specified Condition
      Accel Sens. No. 1 Volt % Accelerator Pedal
      Released → Depressed → Released
      Values smoothly change following accelerator pedal operation
      Accel Sens. No. 2 Volt %

      HINT: 

      For numerical values of Accel Sens. No. 1 Volt % and Accel Sens. No. 2 Volt %, refer to the Data List (Refer to DATA LIST / ACTIVE TEST [06/2016 - ] ).

    Result: 

    NG 

    REPLACE ACCELERATOR PEDAL SENSOR ASSEMBLY 

    (Refer to REMOVAL [06/2016 - ] )

    Result: 

    OK 

    See step  6

  6. READ VALUE USING TECHSTREAM (VEHICLE SPEED) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON and turn the Techstream on.
    3. Start the engine.
    4. Enter the following menus: Powertrain / Engine / Data List / Vehicle Speed.
    5. Read the value displayed on the Techstream.

      Standard

      Techstream Display Condition Specified Condition
      Vehicle Speed Vehicle stopped, engine running 0 km/h (0 mph)
      Vehicle being driven at constant speed between 16.1 to 64.4 km/h (10 to 40 mph) No large fluctuations when driving at a constant speed
      WARNING:

      When performing the confirmation driving pattern, obey all speed limits and traffic laws.

      HINT: 

      Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.

    Result: 

    NG 

    GO TO VEHICLE STABILITY CONTROL SYSTEM 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2016 - ] )

    Result: 

    OK 

    See step  7

  7. READ VALUE USING TECHSTREAM (FR, FL, RR, RL WHEEL SPEED) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON and turn the Techstream on.
    3. Start the engine.
    4. Enter the following menus: Chassis / ABS/VSC/TRC / Data List / FR Wheel Speed, FL Wheel Speed, RR Wheel Speed and RL Wheel Speed.
    5. Read the value displayed on the Techstream.

      Standard

      Techstream Display Condition Specified Condition
      FR Wheel Speed
      FL Wheel Speed
      RR Wheel Speed
      RL Wheel Speed
      Vehicle stopped, engine running 0 km/h (0 mph)
      Vehicle being driven at constant speed between 16.1 to 64.4 km/h (10 to 40 mph) No large fluctuations when driving at a constant speed
      WARNING:

      When performing the confirmation driving pattern, obey all speed limits and traffic laws.

      HINT: 

      Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.

    Result: 

    OK 

    END 

    Result: 

    NG 

    INSPECT FRONT OR REAR SPEED SENSOR