PUSH-BUTTON START SYSTEM DESCRIPTION


  1. SYSTEM FUNCTION

    Function Outline
    Push-button start function When the electrical key transmitter sub-assembly is brought into the vehicle and verified, this function changes the power source or starts the hybrid control system when the power switch and brake pedal are operated.
    Battery saving function for key If a switch on the electrical key transmitter sub-assembly is depressed and held, this function stops transmission of the signal after approximately 20 seconds to save transmitter battery power.
    Key cancel function Cancels the push-button start when certain operations are performed.
    Immobiliser function Allows the hybrid control system to be started only using registered keys to prevent an unauthorized hybrid control system start.
    Automatic power off function

    • With park (P) selected and the power switch on (ACC) (the hybrid control system is not started and the vehicle is not moving), the power automatically turns off when the vehicle is left as is for 20 minutes or more.

    • With park (P) selected and the power switch on (IG) (the hybrid control system is not started and the vehicle is not moving), the power automatically turns off when the vehicle is left as is for 60 minutes or more.

  2. DETECTION AREA

    Note


    • Depending on the vehicle body shape, the electrical key transmitter sub-assembly may not operate in certain locations.

    • Even if the electrical key transmitter sub-assembly is in the vehicle exterior key detection area, the electrical key transmitter sub-assembly may not be properly detected if the electrical key transmitter sub-assembly is near a window, a door handle or the center of the rear bumper.

    • Even if the electrical key transmitter sub-assembly is in the vehicle interior key detection area, the electrical key transmitter sub-assembly may not be properly detected if the electrical key transmitter sub-assembly is on the instrument panel, in the glove box or on the floor.

    • Depending on the way the electrical key transmitter sub-assembly is held, the electrical key transmitter sub-assembly may not operate properly.

    • The key detection area may reduce in size or the electrical key transmitter sub-assembly may not be properly detected under the following conditions:


      • The transmitter battery is depleted.

      • There are TV towers, electric power plants, broadcasting stations, gas stations or other facilities that generate strong radio waves or electrical noise nearby.

      • Electronic devices such as cell phones, etc. are carried with the electrical key transmitter sub-assembly.

      • The electrical key transmitter sub-assembly is covered by or in contact with a metal object.

      • A radio wave type keyless entry system or wireless remote is operated nearby.

      • The electrical key transmitter sub-assembly is placed near high-voltage equipment or equipment that emits electrical noise.


    1. The request signal sent from the certification ECU (smart key ECU assembly) is transmitted from each electrical key antenna (outside) to form the smart key detection area. The detection area formed by each electrical key antenna (outside) has a detection range of 0.7 to 1 m (2.30 to 3.28 ft.) from the door handles and rear bumper (electrical key antenna [outside luggage]).

    2. The detection area inside the vehicle is formed and the electrical key transmitter sub-assembly is detected when any of the following conditions are met: 1) The driver door is opened and closed, 2) the brake pedal is depressed, 3) the power switch is operated, 4) the conditions required for various warnings are met.

    3. The detection area inside the vehicle when starting the hybrid control system can be customized through the customize function.

      Click here

  3. MULTI CHANNEL FUNCTION


    1. The electrical key transmitter sub-assembly and door control receiver can operate on two different RF channels. When an electrical key transmitter sub-assembly is brought within an interior detection area, key verification begins. If key verification fails due to wave interference, the channel will be switched and key verification will be performed again.

      The multi channel system begins verification using the channel on which the last verification was successfully performed. When verification fails, the system switches to the other channel.

      A01KRNFC05
      *a Interior detection areas are created using LF waves (emitted from the vehicle at intervals of 0.25 seconds) to receive a response from the electrical key transmitter. *b When the electrical key transmitter is brought into an interior detection area, it receives LF waves from the vehicle. Using RF waves, the electrical key transmitter responds to the vehicle.
      *c Upon receiving the response from the electrical key transmitter, the certification ECU (smart key ECU assembly) activates the electrical key antennas (outside) one by one. Using LF waves, the certification ECU (smart key ECU assembly) determines which interior detection area the electrical key transmitter is in. *d The electrical key transmitter receives the LF waves from the vehicle and responds using RF waves. (The certification ECU (smart key ECU assembly) recognizes which interior detection area the electrical key transmitter is in.)
      *e The certification ECU (smart key ECU assembly) sends registered key ID information to the electrical key transmitter using LF waves. (Up to 7 key IDs can be registered.) *f The electrical key transmitter sends the key ID information using RF waves. When the certification ECU (smart key ECU assembly) receives it, verification completes.
      *g Wave interference (Channel switching) - -

      The multi channel system changes the channels when the RF band (*b, *d and *f) is interrupted by wave interference. Refer to the table below to confirm when the system changes the channels.

      *b or *d is NG *f is NG
      Condition RF waves cannot be received RF waves cannot be received properly RF waves cannot be received RF waves cannot be received properly
      Channel switching The channels will not be switched. The channels will be switched. The channels will not be switched. The channels will be switched*.

      • *: The channels are not switched during vehicle interior verification after a push switch operation is performed.

  4. WARNING FUNCTION


    1. Warning


      1. When any of the situations below occur, the push-button start causes the certification ECU (smart key ECU assembly) to sound the wireless door lock buzzer and a buzzer in the combination meter assembly and display a message on the multi-information display in order to alert the driver.

      2. Situation: The hybrid control system is on and a shift state other than park (P) has been selected when the driver gets out of the vehicle.


        • There are 2 patterns for this situation.


          • Pattern 1:

            When the hybrid control system is on and a shift state other than park (P) has been selected, the driver opens the door and attempts to get out of the vehicle.

            In this situation, the following control is performed:

            Possible effects without warning Sudden vehicle start, vehicle theft, vehicle roll-away

            Warning Start Condition

            (All conditions are met)

            • The power switch is on (ACC) or on (IG).

            • A shift state other than park (P) has been selected.

            • The driver door is opened.

            • The vehicle speed is 0 km/h (0 mph).
            Warning description

            • The buzzer in the combination meter assembly sounds continuously.

            • "SHIFT TO P POSITION" is displayed on the multi-information display in the combination meter assembly.

            Warning Stop Condition

            (One condition is met)

            • The power switch is turned off.

            • The P position switch (transmission shift main switch) is pushed.

            • The driver door is closed.

            • The vehicle speed is 5 km/h (3.11 mph) or more.

          • Pattern 2:

            Under the situation of pattern 1, the driver closes the door and attempts to leave the vehicle while holding the electrical key transmitter sub-assembly.

            In this situation, the following control is performed:

            Possible effects without warning Sudden vehicle start, vehicle theft, vehicle roll-away

            Warning Start Condition

            (All conditions are met)

            • The power switch is on (ACC) or on (IG).

            • A shift state other than park (P) has been selected.

            • The driver door is opened → closed.

            • The electrical key transmitter sub-assembly is not in the vehicle.

            • The vehicle speed is 0 km/h (0 mph).
            Warning description

            • The buzzer in the combination meter assembly sounds continuously.

            • The wireless buzzer sounds continuously.

            • "SHIFT TO P POSITION" is displayed on the multi-information display in the combination meter assembly for 60 seconds.[A]

            • "KEY NOT DETECTED" is displayed on the multi-information display in the combination meter assembly.[B]

            Warning Stop Condition

            (One condition is met)

            • The power switch is turned off ([A] continues to be displayed).

            • The electrical key transmitter sub-assembly is returned to the vehicle ([A] continues to be displayed).

            • The vehicle speed is 5 km/h (3.11 mph) or more ([B] continues to be displayed).

            • The P position switch (transmission shift main switch) is pushed ([B] continues to be displayed).

      3. Situation: The key reminder sounds.


        • When the driver door is open, the driver turns the power switch on (ACC) and attempts to leave the vehicle.

          Possible effects without warning Vehicle theft

          Warning Start Condition

          (Either Condition 1 or 2 is met)

          Condition 1


          • Park (P) has been selected.

          • The power switch is on (ACC).

          • The driver door is opened.

          Condition 2 (Approval for one second or more)


          • Park (P) has been selected.

          • The power switch is off.

          • The gearshift control is unlocked.

          • The driver door is opened.
          Warning description

          • The buzzer in the combination meter assembly sounds continuously at short and even intervals.

          Warning Stop Condition

          (One of conditions is met)

          The warning is stopped when one of the following conditions is met:


          • The power switch is turned on (IG).

          • The driver door is closed.

          • The power switch is turned off and the gearshift control is locked.

      4. Situation: The hybrid control system is on with park (P) selected when the driver gets out of the vehicle.


        • When the hybrid control system is on with park (P) selected, the driver closes the driver door and attempts to leave the vehicle while carrying the electrical key transmitter sub-assembly.

          In this situation, the following control is performed:

          Possible effects without warning Vehicle theft

          Warning Start Condition

          (All conditions are met)

          • The power switch is on (ACC) or on (IG).

          • Park (P) has been selected.

          • The driver door is opened → closed.

          • The electrical key transmitter sub-assembly is not in the vehicle.

          • The vehicle speed is 0 km/h (0 mph).
          Warning description

          • The buzzer in the combination meter assembly sounds once.

          • The wireless buzzer sounds 3 times.

          • "KEY NOT DETECTED" is displayed on the multi-information display in the combination meter assembly.

          Warning Stop Condition

          (Either condition is met)

          • The power switch is turned off.

          • The electrical key transmitter sub-assembly is returned to the vehicle.

      5. Situation: The hybrid control system is on when a passenger gets out of the vehicle while carrying the electrical key transmitter sub-assembly.


        • When the hybrid control system is on, a passenger leaves the vehicle while carrying the electrical key transmitter sub-assembly.

          In this situation, the following control is performed:

          Possible effects without warning Hybrid control system cannot be restarted

          Warning Start Condition

          (All conditions are met)

          • The power switch is on (ACC) or on (IG).

          • A door other than the driver door is opened → closed.

          • The electrical key transmitter sub-assembly is not in the vehicle.

          • The vehicle speed is 0 km/h (0 mph).
          Warning description

          • The buzzer in the combination meter assembly sounds once.

          • The wireless buzzer sounds 3 times.

          • "KEY NOT DETECTED" is displayed on the multi-information display in the combination meter assembly.

          Warning Stop Condition

          (Either condition is met)

          • The power switch is turned off.

          • The electrical key transmitter sub-assembly is returned to the vehicle.

      6. Situation: The electrical key transmitter sub-assembly is not in the interior or exterior detection areas.


        • When the electrical key transmitter sub-assembly is not in the vehicle or the transmitter battery is depleted, the driver attempts to start the hybrid control system or turn the power switch on (IG).

          In this situation, the following control is performed:

          Possible effects without warning Confuses the user

          Warning Start Condition

          (All conditions are met)

          • A door is not unlocked using the mechanical key and the power switch is pressed.

          • The electrical key transmitter sub-assembly is not in the vehicle or the transmitter battery is depleted.

          • The immobiliser system is set.
          Warning description

          • The buzzer in the combination meter assembly sounds once.

          • "KEY NOT DETECTED" is displayed on the multi-information display in the combination meter assembly for 15 seconds.

          Warning Stop Condition

          (Either condition is met)

          • The electrical key transmitter sub-assembly is returned to the vehicle.

          • 30 seconds have elapsed after the door is opened

      7. Situation: The vehicle is driven without a registered electrical key transmitter sub-assembly.


        • In this situation, the following control is performed:

          Possible effects without warning Hybrid control system cannot be restarted

          Warning Start Condition

          (All conditions are met)

          • The power switch is on (IG).

          • Warning indicating that the electrical key transmitter sub-assembly is being brought out of vehicle is output.

          • The vehicle speed is 5 km/h (3.11 mph) or more.

          • The electrical key transmitter sub-assembly is not in the vehicle.
          Warning description

          • Buzzer in the combination meter assembly sounds nine times.

          • "KEY NOT DETECTED" is displayed on the multi-information display in the combination meter assembly.

          Warning Stop Condition

          (Either condition is met)

          • The power switch is turned off.

          • The electrical key transmitter sub-assembly is returned to the vehicle.

      8. Situation: The electrical key transmitter sub-assembly is locked inside the vehicle.

        With a door open and the electrical key transmitter sub-assembly in the vehicle, the lock knob is locked and then the door is closed with the door handle being pulled.

        In this situation, the following control is performed:

        Possible effects without warning Vehicle theft

        Warning Start Condition

        (Either Condition 1 or 2 is met)

          Condition 1:

        • With a door open, the lock knob is locked and then the door is closed with the door handle being pulled.

        • The electrical key transmitter sub-assembly is in the vehicle.

        • The vehicle speed is 0 km/h (0 mph).


          Condition 2*:

        • Power switch is off

        • All doors are closed and locked

        • Electrical key transmitter sub-assembly is inside vehicle (matching code is detected in vehicle interior)
        Warning description

        • The buzzer in the combination meter assembly sounds once.

        • The wireless buzzer sounds continuously for 5 seconds.

        • "KEY DETECTED IN VEHICLE" is displayed on the multi-information display in the combination meter assembly for 60 seconds.

        Warning Stop Condition

        (One condition is met)

        • The power switch is turned to a mode other than off.

        • Any door is opened (only wireless buzzer stops).

        • Lock operation is detected.

        • The vehicle speed is 5 km/h (3.11 mph) or more.

        *: w/ Double Locking System

      9. Situation: The transmitter battery is weak.


        • The vehicle is driven using an electrical key transmitter sub-assembly that has a low transmitter battery.

          In this situation, the following control is performed:

          Possible effects without warning Depleted transmitter battery, hybrid control system cannot be restarted

          Warning Start Condition

          (Either Condition 1 or 2 is met)

          Condition 1


          • The power switch is turned off after being left on (IG) for more than 20 minutes.

          • The transmitter battery voltage is low.

          • The electrical key transmitter sub-assembly is in the vehicle.

          • The vehicle speed is 0 km/h (0 mph).

          Condition 2


          • The hybrid control system is off → the hybrid control system is started.

          • The transmitter battery voltage is low.

          • The electrical key transmitter sub-assembly is in the vehicle.

          • The vehicle speed is 0 km/h (0 mph).

          • Condition 1 has been met. (past)
          Warning description

          • The buzzer in the combination meter assembly sounds once.

          • "KEY BATTERY LOW" is displayed on the multi-information display in the combination meter assembly for 15 seconds.

          Warning Stop Condition

          (Either condition is met)

          • The vehicle speed is 5 km/h (3.11 mph) or more.

          • The transmitter battery is replaced with a new one.

      10. Situation: The hybrid control system does not start. (Situation A)


        • When the power switch is pressed, the electrical key transmitter sub-assembly cannot be detected in the vehicle two times in a row or the driver attempts to start the hybrid control system after unlocking the driver door using the mechanical key.

          In this situation, the following control is performed:

          Possible effects without warning Hybrid control system cannot be restarted

          Warning Start Condition

          (One condition is met)

          • The immobiliser system is set.

          • The electrical key transmitter sub-assembly is not in the vehicle.

          • Key code verification error occurs when the power switch is pressed twice or the driver door key linked unlock operation is performed.
          Warning description

          • The buzzer in the combination meter assembly sounds once.

          • "DEPRESS BRAKE PEDAL, TOUCH POWER SWITCH WITH KEY" is displayed on the multi-information display in the combination meter assembly for 60 seconds.

          Warning Stop Condition

          (Either condition is met)

          • The electrical key transmitter sub-assembly is returned to the vehicle.

          • 30 seconds have elapsed after the door is opened

      11. Situation: The hybrid control system does not start. (Situation B)


        • There are two patterns for this situation.


          • Pattern 1:

            A warning message appears on the multi-information display when the driver does not follow the proper procedure to start the vehicle.

            In this situation, the following control is performed:

            Possible effects without warning Hybrid control system cannot be restarted

            Warning Start Condition

            (All conditions are met)

            • The power switch is off.

            • Driver door is closed → opened.

            • The power switch is turned from off to on (ACC) more than twice with the hybrid control system off and the brake pedal not depressed.
            Warning description

            • The buzzer in the combination meter assembly sounds once.

            • "DEPRESS BRAKE PEDAL AND PUSH POWER SWITCH TO START" is displayed on the multi-information display in the combination meter assembly for 10 seconds.

            Warning Stop Condition

            (Either condition is met)

            • The power switch is turned off.

            • The power switch is turned on (IG).

          • Pattern 2:

            A message indicating how to start the hybrid control system appears on the multi-information display when the shift lever is in a position in which the hybrid control system cannot be started.

            In this situation, the following control is performed:

            Possible effects without warning Hybrid control system cannot be restarted

            Warning Start Condition

            (All conditions are met)

            • The hybrid control system is stopped.

            • The vehicle speed is 0 km/h (0 mph).

            • More than 0.5 seconds have elapsed after the power switch is turned on (IG).

            • A shift state other than park (P) has been selected.
            Warning description

            • The buzzer in the combination meter assembly sounds once.

            • "SHIFT TO P POSITION TO START" is displayed on the multi-information display in the combination meter assembly.

            Warning Stop Condition

            (One condition is met)

            • The P position switch (transmission shift main switch) is pushed.

            • The vehicle speed is 5 km/h (3.11 mph) or more.

            • The power source mode is changed to any mode other than on (IG).

            • The hybrid control system is started.

      12. Situation: Auto power off operation occurs.


        • A warning message appears on the multi-information display when automatic power off operation occurs.

          In this situation, the following control is performed:

          Possible effects without warning Discharged vehicle auxiliary battery

          Warning Start Condition

          (All conditions are met)

          • Park (P) has been selected.

          • The power switch is on (ACC) or on (IG).

          • The vehicle speed is 0 km/h (0 mph).

          • The hybrid control system is stopped.

          • The power source control system is turned off by automatic power off function.
          Warning description

          • "AUTO POWER OFF TO CONSERVE BATTERY" is displayed on the multi-information display in the combination meter assembly for 10 seconds.
          Warning Stop Condition

          • The power switch is turned on (ACC) or on (IG).

      13. Situation: Immobiliser system certification completion occurs.


        • When an electrical key transmitter sub-assembly with a depleted transmitter battery is held near the power switch while depressing the brake.

          In this situation, the following control is performed:

          Possible effects without warning Malfunction cannot be detected
          Warning Start Condition

          • Electrical key transmitter sub-assembly certification result is OK.
          Warning description

          • The buzzer in the combination meter assembly sounds once.

          • "DEPRESS BRAKE PEDAL AND PUSH POWER SWITCH TO START" is displayed on the multi-information display in the combination meter assembly for 10 seconds.

          Warning Stop Condition

          (One condition is met)

          • The electrical key transmitter sub-assembly is detected by the vehicle.

          • The hybrid control system is started.

          • The immobiliser system is set and key recognition is stopped or the key cannot be recognized.