SMART ENTRY AND START SYSTEM


  1. FUNCTION OF MAIN COMPONENTS


    1. The main components for the start function have the following functions:

      Component Function

      Engine Switch


      • Transponder Key Amplifier

      • Transmits the engine switch signal to the certification ECU (smart key ECU assembly).

      • Receives the ID code and transmits it to the certification ECU (smart key ECU assembly) when the key battery is too weak to respond to the tuner based on the signals from the room antennas.
      Electrical Key Transmitter Sub-assembly Receives the signals from the antennas and returns the ID code to the door control receiver.

      Indoor Electrical Key Antenna


      • Front, Rear

      		 Receives a request signal from the certification ECU (smart key ECU assembly) and forms the actuation area in the vehicle.
      Door Control Receiver Receives the ID code from the electrical key transmitter sub-assembly and transmits it to the certification ECU (smart key ECU assembly).
      Certification ECU (Smart Key ECU Assembly)

      • Certifies the ID code received from the door control receiver and transmits the certification results to the steering lock ECU (steering lock actuator assembly).

      • Transmits the steering wheel lock/unlock signals.

      • Transmits the engine immobiliser set/unset request signals.

      • Switches the power source ("engine switch") among 4 modes (off, on (ACC), on (IG), start) in accordance with the shift position and the brake pedal signal.

      • Controls the smart entry and start system in accordance with the signals received from the switches and each ECU.

      • Turns on the ST relay, and starts the engine when the engine switch is pushed once with the brake pedal depressed.
      Stop Light Switch Assembly Outputs the state of the brake pedal to the certification ECU (smart key ECU assembly).
      Steering Lock ECU (Steering Lock Actuator Assembly) Receives the steering wheel unlock/lock request signal from the certification ECU (smart key ECU assembly), and activates the steering lock motor.
      Combination Meter Assembly Buzzer Sounds to inform the driver of malfunctions in the smart entry and start system.
      Multi-information Display

      The following warning messages appear to alert the driver.


      • Key not detected

        Check key location

      • Shift to P position to Start

      • Depress brake and then start engine

      • Depress Brake and Then Touch Key to Engine Switch

      • Key Battery Low

      • Turn Off Vehicle

      • Check Entry & Start System

      • Steering Lock active

      • Power Turned Off to Save Battery

    2. The main components for the entry function have the following functions:

      Component Function
      Electrical Key Transmitter Sub-assembly

      • Outputs information such as the key ID and vehicle ID when request signals that are output by the room and door antennas are received.

      • Outputs a request signal when the lock, unlock, panic, or luggage compartment door open button on the electrical key transmitter sub-assembly is pushed.

      • Outputs information such as the key ID and vehicle ID when the radio wave signal that is output by the transponder key amplifier in the engine switch is received.

      • Has an integrated mechanical key that can be used to unlock the doors when the key battery is weak.
      Main Body ECU (Multiplex Network Body ECU)

      • Receives a request signal from the certification ECU (smart key ECU assembly) and actuates the door lock motors to unlock or lock all the doors and luggage compartment door.

      • Transmits the condition of each door and the luggage compartment door to the certification ECU (smart key ECU assembly).
      Certification ECU (Smart Key ECU Assembly)

      • Certifies the ID code received from the door control receiver and transmits the certification results to the steering lock ECU (steering lock actuator assembly).

      • Controls the antennas and touch sensors.

      • Transmits the door lock/unlock request signals during the entry function.
      Outside Door Handle Door Electrical Key Antenna Receives a request signal from the certification ECU (smart key ECU assembly), and creates an actuation area around the front and rear doors.
      Lock Sensor Transmits door lock request signals to the certification ECU (smart key ECU assembly).
      Unlock Sensor Detects when a person touches the inside of an outside door handle.
      Outside Electrical Key Antenna (Luggage Compartment Door) Receives a request signal from the certification ECU (smart key ECU assembly) and forms an actuation area around the luggage compartment door.

      Indoor Electrical Key Antenna


      • Front, Rear, Luggage Compartment

      		 Receives a request signal from the certification ECU (smart key ECU assembly) and forms an actuation area in the vehicle.
      Door Control Receiver Receives the ID code from the electrical key transmitter sub-assembly and transmits it to the certification ECU (smart key ECU assembly).
      Luggage Compartment Door Open Switch Transmits a luggage compartment door open request signal to the certification ECU (smart key ECU assembly).
      Combination Meter Assembly Buzzer Sounds to inform the driver of malfunctions in the smart entry and start system.
      Multi-information Display

      The following warning messages appear to alert the driver.


      • Key not detected

        Check key location

      • Key Battery Low

      • Shift to P Before Exiting Vehicle

      • Turn Off Vehicle

      • Check Entry & Start System
      Wireless Door Lock Buzzer

      • Sounds as an answer back for entry lock/unlock and wireless lock/unlock to inform the driver.

      • Sounds to inform the driver of malfunctions in the smart entry and start system.

  2. OPERATION


    1. The special functions of the smart entry and start system only work when the electrical key transmitter sub-assembly is in the actuation area formed by the antennas.

    2. The indoor electrical key antenna (front), indoor electrical key antenna (rear), and indoor electrical key antenna (luggage compartment) form the interior actuation area.

    3. The door electrical key antennas and outside electrical key antenna (luggage compartment door) form the exterior actuation area.

      A01VYLYN02
      Text in Illustration
      *1 Indoor Electrical Key Antenna (Front) *2 Front Door Electrical Key Antenna LH
      *3 Front Door Electrical Key Antenna RH *4 Indoor Electrical Key Antenna (Rear)
      *5 Rear Door Electrical Key Antenna LH *6 Rear Door Electrical Key Antenna RH
      *7 Indoor Electrical Key Antenna (Luggage Compartment) *8 Outside Electrical Key Antenna (Luggage Compartment Door)
      *9 Electrical Key Transmitter Sub-assembly - -
      *a Approximately 0.7 to 1.0 m (2.3 to 3.3 ft.) - -
      A01VYVJ Interior Actuation Area A01VYVL Exterior Actuation Area
      Actuation Area Detail
      Interior The interior actuation area of the indoor electrical key antennas (front, rear) is formed when the driver door is opened or closed, when the engine switch is pushed, when a warning is activated, or when a lock sensor is on.
      Exterior The exterior actuation area formed by the front and rear door electrical key antennas (LH, RH) and outside electrical key antenna (luggage compartment door) is approximately 0.7 to 1.0 m (2.3 to 3.3 ft.) from the outside door handle or the center of the rear bumper.
      Around Front Doors and Rear Doors The exterior actuation area of the door electrical key antennas is formed by transmitting a request signal every 0.25 seconds while the engine switch is off and each door is locked. In this way it detects the presence of an electrical key transmitter sub-assembly. When locking the door using the lock sensor on the outside door handle, the actuation area is formed when the lock sensor is touched.
      Around Luggage Compartment Door The exterior actuation area of the outside electrical key antenna (luggage compartment door) is formed when the luggage compartment door open switch is on.

  3. SYSTEM CONTROL


    1. Start Function


      1. The start function has different power source change patterns to suit the brake pedal state and shift lever position.

        Pattern Brake Pedal Shift Lever Position Power Source Change Pattern
        A Depressed P or N

        When the engine switch is pushed once.


        • Off → on (IG) (after the engine is started)
        B Not Depressed P

        Each time the engine switch is pushed.


        • Off → on (ACC) → on (IG) → off
        C Except P

        Each time the engine switch is pushed.


        • Off → on (ACC) → on (IG) → on (ACC)
        D - P

        When the engine switch is pushed in the on (IG) condition.


        • On (IG) (engine is started or not started) → off
        E - Except P

        When the engine switch is pushed in the on (IG) condition.


        • On (IG) (engine is started or not started) → on (ACC)
        A01VYYYE03

        Note


        • Normally, the operation of the engine switch is disabled while the vehicle is being driven. However, in an emergency, by pushing the engine switch for approximately 2 seconds or more or pushing the engine switch 3 times or more in a row, the driver can stop the engine while the vehicle is in motion.

        • If no signals are transmitted to the certification ECU (smart key ECU assembly) due to malfunctions in the stop light switch or park/neutral position switch assembly, the engine may not start when the engine switch is pushed with the brake pedal depressed. In such cases, performing the following procedure may enable the engine to start: 1) push the engine switch to turn the power source from off to on (ACC), and 2) push the engine switch again and hold it for 15 seconds or more.

        • The above 2 operations must be applied only in emergency situations. Under normal conditions, the engine must not be stopped by pushing the engine switch while driving. Also, it should not be started without depressing the brake pedal or when the shift lever is in any position other than P or N.

    2. Cranking Hold Function


      1. Once the engine switch is pressed, this function operates the starter until the engine starts, provided that the brake pedal is depressed. This prevents application of the starter for an inadequate length of time and it also prevents the engine from being cranked after it has started. For details see page for 2GR-FE, see page for 2AR-FE, Click here for 6AR-FSE.

    3. Entry Unlock


      1. While the user carries the electrical key transmitter sub-assembly in the exterior actuation area, and any of the outside door handle is held (the back side of the handle is touched), the door unlock sensor built into the handle detects it and the doors are unlocked.

      2. When the doors are unlocked, the hazard warning lights flash twice as an answer back.

        A01VYN7N02
        Text in Illustration
        *1 Unlock Sensor - -

    4. Entry Lock


      1. When the user gets out of the vehicle while carrying the electrical key transmitter sub-assembly and touches the lock sensor of the door outside handle within the exterior actuation area with all the doors closed, the doors are locked.

        A01VZ18N02
        Text in Illustration
        *1 Lock Sensor - -

    5. Luggage Compartment Door Open


      1. The luggage compartment door is opened when the luggage compartment door opener switch is pressed within the luggage compartment door exterior actuation area while the user is carrying the electrical key transmitter sub-assembly.

        A01VYNCN02
        Text in Illustration
        *1 Luggage Compartment Door Opener Switch - -
        *a Approximately 0.7 m (2.30 ft.) - -

    6. Warning


      1. When any of the situations below occur, the smart entry and start system sounds the wireless door lock buzzer, sounds a buzzer in the combination meter assembly, displays a message on the multi-information display in order to alert the driver.

        Situation Condition
        A The engine is left running and the shift lever is in a position other than P when the driver gets out of the vehicle.
        B The key reminder sounds.
        C The engine is left running and the shift lever is in P when the driver gets out of the vehicle.
        D The engine is left running when a passenger gets out of the vehicle while holding the electrical key transmitter sub-assembly.
        E The electrical key transmitter sub-assembly is not within the actuation areas.
        F The vehicle is driven without an electrical key transmitter sub-assembly.
        G The electrical key transmitter sub-assembly is left in the vehicle.
        H A door is ajar.
        I The vehicle has started off with an electrical key transmitter in the luggage compartment.
        J The key battery is weak.
        K Steering lock does not release.
        L A malfunction has been detected in a circuit, vehicle speed signal, etc.
        M The engine cannot be started (system error).
        N The engine cannot be started (driver error).
        O An attempt has been made to turn off the vehicle with the shift lever in a position other than P or N.
        P Auto power off operation occurs.
        Q Immobiliser system certification confirmation occurs.

      2. Situation A


        • There are 2 patterns for situation A.


          • Pattern 1:

            When the shift lever is in a position other than P, the engine switch is in a mode other than off, 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 movement, Vehicle theft, Vehicle roll-away
            Warning Active Condition

            The warning is activated when all of the following conditions are met:


            • The engine switch is in a mode other than off.

            • The shift lever is in any position except P.

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

            • The driver door is opened.
            Warning Method Combination Meter Assembly Buzzer Sounds continuously
            Multi-information Display

            The following warning message is displayed:


            • Shift to P Before Exiting Vehicle
            Wireless Door Lock Buzzer* -
            Warning Stop Condition

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


            • The engine switch is turned off.

            • The shift lever is moved to P.

            • The vehicle speed is above 5 km/h (3 mph).

            • The driver door is closed.

            *: Except models for China

          • 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-off, Vehicle theft, Vehicle roll-away
            Warning Active Condition

            The warning is activated when all of the following conditions are met:


            • The shift lever is in any position except P.

            • The engine switch is in a mode other than off.

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

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

            • The driver door is opened → closed.
            Warning Method Combination Meter Assembly Buzzer Sounds continuously
            Multi-information Display

            The following warning messages are alternately displayed:


            • Shift to P Before Exiting Vehicle

            • Key not detected

              Check key location
            Wireless Door Lock Buzzer* Sounds continuously
            Warning Stop Condition The warning is stopped when one of the following conditions is met:
            Combination Meter Assembly Buzzer

            • The engine switch is turned off.

            • The shift lever is moved to P.

            • The vehicle speed is above 5 km/h (3 mph).

            • The electrical key transmitter sub-assembly is detected in the vehicle.
            Wireless Door Lock Buzzer*
            Combination Meter Assembly Multi-information Display ("Key not detected Check key location" message displayed)

            • The engine switch is turned off.

            • The electrical key transmitter sub-assembly is detected in the vehicle.
            Multi-information Display ("Shift to P Before Exiting Vehicle" message displayed)

            • The shift lever is moved to P.

            • The vehicle speed is above 5 km/h (3 mph).

            *: Except models for China

      3. Situation B


        • There are 2 patterns for situation B.


          • Pattern 1:

            The engine switch is on (ACC), the driver door is opened and the driver attempts to leave the vehicle.

          • Pattern 2:

            When the driver door is open, the engine switch is turned from on (IG) to off, the steering remains unlocked and the driver attempts to leave the vehicle.

            In these situations, the following control is performed:

        Possible Effects without Warning Vehicle theft
        Warning Active Condition

        Pattern 1

        The warning is activated when both of the following conditions are met:


        • The engine switch is on (ACC).

        • The driver door is open.

        Pattern 2

        The warning is activated when all of the following conditions are met:


        • The engine switch is turned from on (IG) to off.

        • The driver door is open.

        • The steering lock remains unlocked.
        Warning Method Combination Meter Assembly Buzzer Sounds continuously at short and even intervals
        Multi-information Display -
        Wireless Door Lock Buzzer* -
        Warning Stop Condition

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


        • The engine switch is turned on (IG).

        • The driver door is closed.

        • The engine switch is turned off and the steering wheel lock control is performed.

        *: Except models for China

      4. Situation C


        • There are 2 patterns for situation C.


          • Pattern 1:

            When the shift lever is in P and the engine switch is in a mode other than off, the driver closes the driver 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 Vehicle theft, Engine cannot be restarted, Discharged battery
            Warning Active Condition

            The warning is activated when all of the following conditions are met:


            • The shift lever is in P.

            • The engine switch is in a mode other than off.

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

            • The driver door is opened → closed.

            • The vehicle speed is 5 km/h (3 mph) or lower.
            Warning Method Combination Meter Assembly Buzzer Sounds once
            Multi-information Display

            The following warning message is displayed:


            • Key not detected

              Check key location
            Wireless Door Lock Buzzer* Sounds 3 times
            Warning Stop Condition

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


            • The engine switch is turned off.

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

            *: Except models for China

          • Pattern 2:

            Under the situation of pattern 1, the driver touches the lock sensor on the door outside handle.

            In this situation, the following control is performed:

            Possible Effects without Warning Vehicle theft, Discharged battery
            Warning Active Condition

            The warning is activated when all of the following conditions are met:


            • The engine switch is in a mode other than off.

            • The shift lever is in P.

            • The lock sensor on the outer door handle is on (touched).

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

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

            • The electrical key transmitter sub-assembly is detected in an outside detection area.
            Warning Method Combination Meter Assembly Buzzer Sounds once
            Multi-information Display

            The following warning messages are alternately displayed:


            • Turn Off Vehicle

            • Key not detected

              Check key location
            Wireless Door Lock Buzzer* Sounds for 5 seconds
            Warning Stop Condition The warning is stopped when one of the following conditions is met:
            Combination Meter Assembly Multi-information Display ("Turn Off Vehicle" message displayed)

            • 60 seconds elapse.

            • The engine switch is turned off.

            • The shift lever is moved to any position except P.

            • The vehicle speed is above 5 km/h (3 mph).
            Multi-information Display ("Key not detected Check key location" message displayed)

            • The engine switch is turned off.

            • The electrical key transmitter sub-assembly is detected in the vehicle.
            Wireless Door Lock Buzzer*

            • Any door is opened or closed.

            • The engine switch is turned off.

            • The shift lever is moved to any position except P.

            • The vehicle speed is above 5 km/h (3 mph).

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

            *: Except models for China

      5. Situation D


        • When the engine is left running, a passenger leaves the vehicle while holding the electrical key transmitter sub-assembly.

          In this situation, the following control is performed:

          Possible Effect without Warning Engine cannot be restarted.
          Warning Active Condition

          The warning is activated when all of the following conditions are met:


          • The engine switch is in a mode other than off.

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

          • The vehicle speed is 5 km/h (3 mph) or lower.

          • The electrical key transmitter sub-assembly is not detected in the vehicle.
          Warning Method Combination Meter Assembly Buzzer Sounds once
          Multi-information Display

          The following warning message is displayed:


          • Key not detected

            Check key location
          Wireless Door Lock Buzzer* Sounds 3 times
          Warning Stop Condition

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


          • The engine switch is turned off.

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

          *: Except models for China

      6. Situation E


        • When the electrical key transmitter sub-assembly is not in the vehicle or the key battery is dead, the driver attempts to start the engine or turn the engine switch on (IG).

          In this situation, the following control is performed:

          Possible Effect without Warning User becomes confused
          Warning Active Condition

          The warning is activated when all of the following conditions are met:


          • A door has not been unlocked using the mechanical key.

          • The engine switch is pressed.

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

          • The immobiliser system is set.
          Warning Method Combination Meter Assembly Buzzer Sounds once
          Multi-information Display

          The following warning message is displayed for 15 seconds (and then automatically turned off).


          • Key not detected

            Check key location
          Wireless Door Lock Buzzer* -
          Warning Stop Condition The electrical key transmitter sub-assembly is detected again or returned to the vehicle.

          *: Except models for China

      7. Situation F


        • A warning message appears on the multi-information display*1 when the vehicle starts moving without a registered electrical key transmitter sub-assembly in the vehicle.

          In this situation, the following control is performed:

          Possible Effect without Warning Engine cannot be restarted.
          Warning Active Condition

          • When vehicle speed is detected for the first time after the electrical key transmitter sub-assembly is removed from the vehicle, the warning is activated.

          • The vehicle speed is above 5 km/h (3 mph).
          Warning Method Combination Meter Assembly Buzzer Sounds nine times
          Multi-information Display

          The following warning message is displayed:


          • Key not detected

            Check key location
          Wireless Door Lock Buzzer* -
          Warning Stop Condition

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


          • The engine switch is turned off.

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

          *: Except models for China

      8. Situation G


        • There are 2 patterns for situation G.


          • Pattern 1:

            The lock sensor on a door outside handle is touched to perform entry lock with the electrical key transmitter sub-assembly left in the vehicle.

            In this situation, the following control is performed:

            Possible Effect without Warning Vehicle theft
            Warning Active Condition

            The warning is activated when all of the following conditions are met:


            • The engine switch is off.

            • All doors are closed.

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

            • Any door is unlocked.

            • The lock sensor on the outer door handle is on (touched).

            • The vehicle speed is 0 km/h (0 mph).
            Warning Method Combination Meter Assembly Buzzer -
            Multi-information Display

            The following warning message is displayed for 60 seconds (and then automatically turned off).


            • Key Left inside Vehicle
            Wireless Door Lock Buzzer* Sounds for 5 seconds
            Warning Stop Condition The warning is stopped when any of the following conditions is met:
            Combination Meter Assembly Multi-information Display

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

            • The vehicle speed is above 5 km/h (3 mph).

            • Lock operation is detected.
            Wireless Door Lock Buzzer*

            • Any door is opened.

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

            • The vehicle speed is above 5 km/h (3 mph).

            • Lock operation is detected.

            *: Except models for China

          • Pattern 2:

            The door is locked using the lock knob in the inside door handle with the electrical key transmitter sub-assembly left in the vehicle.

            In this situation, the following control is performed:

            Possible Effect without Warning Vehicle theft
            Warning Active Condition

            The warning is activated when all of the following conditions are met:


            • The door is locked using the lock knob on the inside door handle.

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

            • The vehicle speed is 0 km/h (0 mph).
            Warning Method Combination Meter Assembly Buzzer Sounds once
            Multi-information Display

            The following warning message is displayed for 60 seconds (and then automatically turned off).


            • Key Left inside Vehicle
            Wireless Door Lock Buzzer* Sounds for 5 seconds
            Warning Stop Condition The electrical key transmitter sub-assembly is removed from the vehicle and the lock sensor is on.
            Combination Meter Assembly Multi-information Display

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

            • The vehicle speed is above 5 km/h (3 mph).

            • Lock operation is detected.
            Wireless Door Lock Buzzer*

            • Any door is opened.

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

            • The vehicle speed is above 5 km/h (3 mph).

            • Lock operation is detected.

            *: Except models for China

      9. Situation H


        • The lock sensor on the door outside handle is pushed to perform entry lock, however, a door is open.

          In this situation, the following control is performed:

          Possible Effects without Warning Vehicle theft
          Warning Active Condition

          The warning is activated when all of the following conditions are met:


          • The engine switch is off.

          • Any door is open other than the door where the entry lock operation is performed.

          • The lock sensor on the outer door handle is on (touched).

          • The electrical key transmitter sub-assembly is in an outside detection area.
          Warning Method Combination Meter Assembly Buzzer -
          Multi-information Display -
          Wireless Door Lock Buzzer* Sounds for 5 seconds
          Warning Stop Condition

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


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

          • All doors are closed.

          • An unlock operation is performed using the wireless door lock remote function.

          • The touch sensor on the inside of an outer door handle is used to perform entry unlock.

          *: Except models for China

      10. Situation I


        • The luggage compartment door is closed with the electrical key transmitter sub-assembly left in the luggage compartment.

          In this situation, the following control is performed:

          Possible Effect without Warning Vehicle theft
          Warning Active Condition

          The warning is activated when all of the following conditions are met:


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

          • Entry luggage compartment open function is available.

          • All doors are closed and locked, or after unlock, before a door is opened.

          • The luggage compartment door is opened → closed.

          • The electrical key transmitter sub-assembly is in the luggage compartment.
          Warning Method Combination Meter Assembly Buzzer -
          Multi-information Display -
          Wireless Door Lock Buzzer* Sounds continuously for 5 seconds.
          Warning Stop Condition

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


          • The vehicle speed is above 5 km/h (3 mph).

          • The luggage compartment door is opened.

          *: Except models for China

      11. Situation J


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

          In this situation, the following control is performed:

          Possible Effect without Warning Smart entry and start system does not function
          Warning Active Condition

          Condition 1: The warning is activated when all of the following conditions are met:


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

          • The key 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 warning is activated when all of the following conditions are met:


          • Condition 1 described above is met.

          • The engine has been started.
          Warning Method Combination Meter Assembly Buzzer Sounds once
          Multi-information Display

          The following warning message is displayed for 15 seconds (and then automatically turned off).


          • Key Battery Low
          Wireless Door Lock Buzzer* -
          Warning Stop Condition

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


          • The key battery is replaced with a new one.

          • The vehicle speed is above 5 km/h (3 mph).

          *: Except models for China

      12. Situation K


        • The steering lock cannot be released.

          In this situation, the following control is performed:

          Possible Effect without Warning Steering usability function, the engine cannot be started.
          Warning Active Condition The steering lock cannot be released.
          Warning Method Combination Meter Assembly Buzzer Sounds once
          Multi-information Display

          The following warning message is displayed for 15 seconds (and then automatically turned off).


          • Steering Lock active
          Wireless Door Lock Buzzer* -
          Warning Stop Condition The engine switch is pushed while the steering wheel is turned left and right, and the steering lock successfully disengages.

          *: Except models for China

      13. Situation L


        • An IC circuit malfunction, vehicle speed signal malfunction or malfunction that interferes with steering lock ECU (steering lock actuator assembly) operation, has been detected.

          In this situation, the following control is performed:

          Possible Effect without Warning Usability function
          Warning Active Condition

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


          • The steering lock ECU (steering lock actuator assembly), driver of the certification ECU (smart key ECU assembly) or lock/unlock position switch is malfunctioning.

          • An IG relay output circuit malfunction occurs three times or more consecutively.

          • The vehicle speed is judged as abnormal or vehicle speed signal communication is malfunctioning.
          Warning Method Combination Meter Assembly Buzzer Sounds once
          Multi-information Display

          The following warning message is displayed for 15 seconds (and then automatically turned off).


          • Check Entry & Start System
          Wireless Door Lock Buzzer* -
          Warning Stop Condition The system returns to normal.

          *: Except models for China

      14. Situation M


        • There are 2 patterns for situation M.


          • Pattern 1:

            When the engine switch is pushed, the electrical key transmitter sub-assembly cannot be detected in the vehicle 2 times in a row.

            In this situation, the following control is performed:

            Possible Effect without Warning Usability function (user cannot start vehicle)
            Warning Active Condition

            The warning is activated when all of the following conditions are met:


            • The immobiliser system is set.

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

            • When the engine switch is pressed, a certification error occurs 2 times in a row.
            Warning Method Combination Meter Assembly Buzzer Sounds once
            Multi-information Display

            The following warning message is displayed for 60 seconds (and then automatically turned off).


            • Depress Brake and Then Touch Key to Engine Switch
            Wireless Door Lock Buzzer* -
            Warning Stop Condition

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


            • The immobiliser system certification result is OK.

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

            • Key certification in the vehicle has stopped either because 60 seconds have passed since any of the doors was opened and closed, or because the brake pedal is depressed.

            *: Except models for China

        • Pattern 2:

          The driver attempts to start the engine after unlocking the driver door using the mechanical key.

          In this situation, the following control is performed:

          Possible Effect without Warning Usability function (user cannot start vehicle)
          Warning Active Condition

          The warning is activated when all of the following conditions are met:


          • The driver door is unlocked using the mechanical key.

          • The immobiliser system is set.

          • The engine switch is pushed.

          • The electrical key transmitter sub-assembly is not detected in the vehicle.
          Warning Method Combination Meter Assembly Buzzer Sounds once
          Multi-information Display

          The following warning message is displayed for 60 seconds (and then automatically turned off).


          • Depress Brake and Then Touch Key to Engine Switch
          Wireless Door Lock Buzzer* -
          Warning Stop Condition

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


          • The immobiliser system certification result is OK.

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

          • Key certification in the vehicle has stopped either because 60 seconds have passed since any of the doors was opened and closed, or because the brake pedal is depressed.

          *: Except models for China

      15. Situation N


        • There are 2 patterns for situation N.


          • 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 Effect without Warning Usability function (user cannot start vehicle)
            Warning Active Condition

            The warning is activated when all of the following conditions are met:


            • The engine switch is off.*1

            • Driver door is closed → opened.*1

            • The engine switch is turned from off to on (ACC) more than twice with the engine off and the brake pedal not depressed.
            Warning Method Combination Meter Assembly Buzzer Sounds once
            Multi-information Display

            The following warning message is displayed for 10 seconds (and then automatically turned off).


            • Depress brake and then start engine
            Wireless Door Lock Buzzer*2 -
            Warning Stop Condition The engine switch is turned off or on (IG).

            *1: Precondition

            *2: Models for China

        • Pattern 2:

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

          In this situation, the following control is performed:

          Possible Effect without Warning Usability function (user cannot start vehicle)
          Warning Active Condition

          The warning is activated when all of the following conditions are met:


          • The engine is stopped.

          • The shift lever is not in P or N.

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

          • More than 0.5 seconds have elapsed since the engine switch was turned on (IG).

          • The starter is not operating.
          Warning Method Combination Meter Assembly Buzzer Sounds once
          Multi-information Display

          The following warning message is displayed:


          • Shift to P position to Start
          Wireless Door Lock Buzzer* -
          Warning Stop Condition

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


          • The shift lever is moved to P or N.

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

          • The engine switch is turned off or on (ACC).

          • The engine is started.

          *: Except models for China

      16. Situation O


        • There are 2 patterns for situation O.


          • Pattern 1:

            A warning message appears on the multi-information display when the driver attempts to turn the engine switch off with the shift lever in a position other than P or N.

            In this situation, the following control is performed:

            Possible Effect without Warning Usability function (user becomes confused)
            Warning Active Condition

            The warning is activated when all of the following conditions are met:


            • The shift lever is in any position other than P or N.

            • The engine switch is turned from on (IG) to on (ACC)*1.

            • Even though the engine switch is pressed, the power source mode does not change to off (excluding emergency stop operation).
            Warning Method Combination Meter Assembly Buzzer Sounds once
            Multi-information Display

            The following warning message is displayed for 10 seconds (and then automatically turned off).


            • Shift to P Before Exiting Vehicle
            Wireless Door Lock Buzzer*2 -
            Warning Stop Condition

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


            • The shift lever is moved to P.

            • The engine switch is in a mode other than on (ACC).

            *1: The driver has attempted to turn the engine switch off, but the system has selected on (ACC) due to the shift lever position. Situation A may follow this if the driver does not correct the problem.

            *2: Models for China

        • Pattern 2:

          Under the situation of pattern 1, the shift lever is moved to P.

          In this situation, the following control is performed:

          Possible Effect without Warning Discharged battery, Vehicle roll-away
          Warning Active Condition After the engine switch is turned off with the shift lever in any position other than P, the shift lever is moved to P.
          Warning Method Combination Meter Assembly Buzzer Sounds once
          Multi-information Display

          The following warning message is displayed:


          • Turn Off Vehicle
          Wireless Door Lock Buzzer* -
          Warning Stop Condition

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


          • The shift lever is moved to a position other than P.

          • The engine switch is turned to a mode other than on (ACC).

          *: Except models for China

      17. Situation P


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

          In this situation, the following control is performed:

          Possible Effect without Warning Vehicle battery discharges
          Warning Active Condition

          The warning is activated when all of the following conditions are met:


          • The shift lever is in P*1.

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

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

          • The engine is stopped.

          • The power source is turned off by the automatic power off function.
          Warning Method Combination Meter Assembly Buzzer -
          Multi-information Display

          The following warning message is displayed for 10 seconds (and then automatically turned off).


          • Power Turned Off to Save Battery
          Wireless Door Lock Buzzer*2 -
          Warning Stop Condition The engine switch is turned to a mode other than off.

          *1: Precondition

          *2: Models for China

      18. Situation Q


        • A warning message appears on the multi-information display and a buzzer in the combination meter assembly sounds when an electrical key transmitter sub-assembly with a depleted battery is touched to the engine switch while depressing the brake.

          In this situation, the following control is performed:

          Possible Effect without Warning Malfunction detection
          Warning Active Condition Key certification result is OK*1.
          Warning Method Combination Meter Assembly Buzzer Sounds once
          Multi-information Display

          The following warning message is displayed for 10 seconds (and then automatically turned off).


          • Depress brake and then start engine
          Wireless Door Lock Buzzer*2 -
          Warning Stop Condition

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


          • The engine is started.

          • The engine is running at 500 rpm or more.

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

          • The immobiliser system is set and interior certification stopped or key certification fails.

          *1: This situation occurs following Situation M.

          *2: Models for China

    7. Battery Saving


      1. Battery saving preserves the vehicle and key batteries. It is activated when the vehicle remains parked for a long time and when the electrical key transmitter sub-assembly is left in the exterior actuation area.

        Condition Control Reinstatement Condition
        When the vehicle remains parked for a long time.

        • Control 1:

          No response from electrical key transmitter sub-assembly for more than 5 days


          • Door electrical key antennas and electrical key antenna stop emitting signals for creating the actuation area.

        		 When the engine switch is turned on (IG), the control is canceled and the system is returned to normal.

        • Control 2:

          No response from electrical key transmitter sub-assembly for more than 14 days


          • Door electrical key antennas and electrical key antenna stop emitting signals for creating the actuation area.

          • Front passenger door lock sensor and unlock sensor are disabled.

        • When the engine switch is turned on (IG), the control is canceled and the system is returned to normal.

          When one of the following conditions is met, the control is returned to control 1:


          • The doors are locked or unlocked using wireless remote control.

          • The doors are locked or unlocked by touching the lock/unlock sensor on the driver door.

          • A door is locked or unlocked using the mechanical key.

          • Door is opened → closed.
        When the electrical key transmitter sub-assembly is left in the exterior detection area.

        • This state continues longer than 10 minutes


          • Electrical key antenna that is detecting the electrical key transmitter sub-assembly stops emitting signals for creating the actuation area.

        • The control is stopped when one of the following conditions is met:


          • The doors are locked or unlocked using wireless remote control.

          • The doors are locked or unlocked by touching the lock/unlock sensor on the front or rear door.

          • A door is locked or unlocked using the mechanical key.

      2. In addition to the above functions, the auto power off function helps to reduce drain on the vehicle auxiliary battery by turning the power source mode to off when approximately 60 minutes have elapsed since (a) the shift lever was moved to P with the power source on (ACC), or (b) the engine was turned off with the shift lever in P, the power source on (IG) and the vehicle stationary.

    8. Battery Saving Function of Electrical Key Transmitter Sub-assembly


      1. This function cancels the signal reception waiting state of the electrical key transmitter sub-assembly, reducing the consumption of current from its battery.

      2. The electrical key transmitter sub-assembly can be placed into and taken out of battery saving mode. When the electrical key transmitter sub-assembly is in battery saving mode, the smart entry and start system will not be able to detect the transmitter, as the transmitter will not respond to signals from the vehicle. The smart entry and start system function will not operate if the electrical key transmitter sub-assembly is in battery saving mode.

      3. Pressing the unlock switch of the electrical key transmitter sub-assembly twice while pressing the lock switch (the indicator light of the electrical key transmitter sub-assembly blinks 4 times) selects battery saving mode for the electrical key transmitter sub-assembly.

      4. Battery saving mode can be canceled by pressing any switch on the electrical key transmitter sub-assembly.

    9. Key Cancel


      1. The following system functions can be deactivated by using the key cancel procedure.


        • Entry Lock

        • Entry Unlock

        • Prevention of Key Confinement

        • Warning

      2. The system functions can be deactivated by using the following key cancel procedure when the engine switch is off and the driver door is closed and unlocked.

        Key Cancel Procedure

        • The procedure is as follows:


          • Press the unlock button of the electrical key transmitter sub-assembly once.

          • Within 5 seconds of the step above, open the driver door (Driver Door: Close→Open).

          • Within 5 seconds of the step above, press the unlock button of the electrical key transmitter sub-assembly twice.

          • Repeat close → open for the driver door twice* (Driver Door: Open → Close → Open → Close → Open).

          • Press the unlock button of the electrical key transmitter sub-assembly twice.*

          • Repeat close → open for the driver door once* (Driver Door: Open → Close → Open).

          • Within 5 seconds of the step above, close the driver door.

        When the cancel procedure is complete, the buzzer sounds twice. Meanwhile, when the procedure is performed again to resume the system, the buzzer sounds once.

        *: Perform all these 3 steps within 30 seconds of the previous step.

    10. Key Code Registration Function


      1. The table below shows the 4 special ID code registration function modes through which up to 7 different transmitter recognition codes can be registered. The codes are electronically registered (written to and stored) in the EEPROM. For details, refer to the Repair Manual.

        Mode Function
        Rewrite Clears all previously registered codes and registers only the newly received codes. This mode is used whenever a transmitter or the certification ECU (smart key ECU assembly) is replaced.
        Add Adds a newly received code while preserving previously registered codes. This mode is used when adding a new transmitter. If the number of codes exceeds 7, the oldest registered code is cleared first.
        Confirm Confirms how many codes are currently registered. When adding a new code, this mode is used to check how many codes already exist.
        Prohibit To clear all the registered codes and to prohibit the wireless door lock function. This mode is used when an electrical key transmitter sub-assembly is lost.

  4. FUNCTION


    1. Entry Function


      1. The entry function consists of the following functions:

        Function Outline
        Wireless Door Lock Control This function is a convenient system for locking and unlocking all the doors and luggage compartment door at a distance. The operation of this function is the same as that in the wireless door lock control system.
        Entry Illumination When an electrical key transmitter sub-assembly enters the exterior actuation area of the door electrical key antennas, the interior light illuminates.
        Entry Unlock

        When an electrical key transmitter sub-assembly is located in the exterior actuation area of any door electrical key antenna, the door will unlock after the inner part of an outside door handle is touched.


        • The driver outside door handle unlocks the driver door.

        • The passenger outside door handle unlocks all doors.
        Entry Unlock Mode Switching

        Allows switching between 2 modes that can be operated with the entry unlock function.


        • Driver Door Mode (Default Setting)

        • All Door Mode
        Entry Lock When an electrical key transmitter sub-assembly is located in the exterior actuation area of an electrical key antenna and the engine switch is off, all doors can be locked by simply touching the lock sensor.
        Luggage Compartment Door Open When an electrical key transmitter sub-assembly is in the exterior actuation area of the outside electrical key antenna (luggage compartment door), the luggage compartment door opens manually by simply pushing the luggage compartment door open switch.
        Prevention of Key Confinement The key confinement prevention function prevents the vehicle from being locked with an electrical key transmitter sub-assembly left inside it. This function operates in 2 different situations: when the lock knob is used (keyless lock) and when an outside door handle lock sensor is used (lock sensor).
        Warning

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


        • An exit warning is activated if the shift lever is in any position other than P.

        • An exit warning is activated if the shift lever is in P and the engine switch is in a mode other than off.

        • A warning is activated if the occupant leaves with the electrical key transmitter sub-assembly in inappropriate circumstances.

        • A warning is activated if the engine switch is operated while the electrical key transmitter sub-assembly is outside the actuation area.

        • A warning is activated if the lock button is operated while the electrical key transmitter sub-assembly is inside the vehicle.

        • A warning is activated if the key battery is weak.
        Battery Saving If the electrical key transmitter sub-assembly remains within the exterior actuation area of any electrical key antenna (driver, front passenger, or luggage compartment door), the system maintains periodic communication with the electrical key transmitter sub-assembly. Therefore, if the vehicle remains parked in that state for a long time, the key battery and the vehicle battery could be drained.
        Key Cancel

        The following key functions can be canceled by following the specified procedure.


        • Entry unlock/lock

        • Luggage door open

        • Prevention of key confinement

        • Warning
        Key Code Registration A total of 7 electrical key transmitter sub-assemblies can be registered. Key registration enables the registering (writing and storing) of transmitter recognition codes in the EEPROM that is contained in the certification ECU (smart key ECU assembly).

      2. The wireless door lock control system has the following functions:

        Function Outline
        All Doors Lock Pressing the lock button of the electrical key transmitter sub-assembly locks all doors.
        All Doors Unlock (2-step Unlock) Pressing the unlock button of the electrical key transmitter sub-assembly twice within 5 seconds unlocks all doors after it first unlocks the driver's door.
        All Doors Unlock (1-step Unlock) Pressing the unlock button of the electrical key transmitter sub-assembly once unlocks all doors.
        Luggage Compartment Door Open Keeping the luggage compartment door button of the electrical key transmitter sub-assembly pushed longer than about 0.8 seconds opens the luggage compartment door.
        Answer Back When the doors are being locked or unlocked using the electrical key transmitter sub-assembly, the wireless door lock buzzer sounds and the hazard warning lights blink once while locking and twice while unlocking. Also, the answer back function operates when the doors are locked by the automatic relock function.
        Panic Alarm*

        Keeping the panic button of the electrical key transmitter sub-assembly pushed longer than about 0.8 seconds causes the following to activate as an alarm:


        • The horn is sounded.

        • The hazard warning lights are flashed.
        Automatic Relock If none of the doors are opened within 30 seconds after they are unlocked using the wireless door lock remote control, all the doors will be locked again automatically.
        Repeat If a door is not locked in response to the locking operation of the electrical key transmitter sub-assembly, the main body ECU (multiplex network body ECU) will output a lock signal again after 1 second elapses.
        Security Sends a door lock/unlock operation request signal as a rolling code.
        Door Ajar Warning If any door is open or ajar, pushing the lock button of the electrical key transmitter sub-assembly will cause the wireless door lock buzzer to sound for about 5 seconds as a warning.

        *: Models with Panic Switch

  5. CONSTRUCTION


    1. Electrical Key Transmitter Sub-assembly


      1. The electrical key transmitter sub-assembly consists of a mechanical key, transmitter for the wireless door lock control, transceiver for the entry function, and transponder chip for the engine immobiliser function.

      2. This mechanical key operates the driver door lock cylinder, luggage compartment door lock cylinder and glove box lock cylinder, but cannot be used to start the engine.

      3. The transmitter for the wireless door lock control has a lock switch, unlock switch, panic switch*, and luggage compartment door open switch.

        *: Models with Panic Switch

      4. The transceiver in the electrical key transmitter sub-assembly receives the signals from the antennas and returns the ID code of the electrical key transmitter sub-assembly to the door control receiver.

      5. The transponder chip for the engine immobiliser function returns a signal to the engine switch as a response to the radio wave signals received from the engine switch.

        A01VYW0N01
        Text in Illustration
        *A Models with Panic Switch - -
        *1 Mechanical Key *2 Lock Switch
        *3 Unlock Switch *4 Luggage Compartment Door Open Switch
        *5 Panic Switch - -

    2. Engine Switch


      1. The engine switch consists of a momentary type switch, illumination, antenna coil, and transponder key amplifier.

        A01VYNOE03

    3. Combination Meter Assembly


      1. When the certification ECU (smart key ECU assembly) detects an abnormality with the smart entry and start system, a message appears on a multi-information display. If the engine is stopped in this state, it might not be possible to restart it.

        A01VYV3N04
        Text in Illustration
        *a POWER ON *b Engine Start Ready State
        Power Source Condition Multi-information Display
        Brake pedal not depressed Brake pedal depressed with shift lever in P or N
        Off (LOCK) OFF OFF
        On (ACC), On (IG) POWER ON Engine Start Ready State
        Engine Running OFF Engine Start Ready State

    4. Certification ECU (Smart Key ECU Assembly)


      1. The certification ECU (smart key ECU assembly) includes the IG1 relay and IG2 relay actuation circuits, CPU, and hold circuit.

      2. The hold circuit is provided to prevent the power supply to the relays from being cut off when an abnormality occurs in the IG1 relay and/or IG2 relay actuation circuits while driving.

        A01VZ02E22

        Tech Tips

        The certification ECU (smart key ECU assembly) constantly stores the present power source mode in its memory. Therefore, if the power to the certification ECU (smart key ECU assembly) is interrupted due to the removal of the battery, the certification ECU (smart key ECU assembly) restores the power source after the battery is reconnected.

        For this reason, if the battery is removed when the power source is in a mode other than off, the power will be restored to the vehicle at the same time the power is restored to the certification ECU (smart key ECU assembly) by reconnecting the battery.

        Therefore, before removing the battery, be sure to turn the power source off.

    5. Door Control Receiver (Multi-channel)


      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 exterior detection area, key verification begins. If key verification fails due to radio 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.

        A01VYLSE11
        Text in Illustration
        *a Exterior 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 sub-assembly.
        *b When the electrical key transmitter sub-assembly is brought into an exterior detection area, it receives LF waves from the vehicle. Using RF waves, the electrical key transmitter sub-assembly responds to the vehicle.
        *c Upon receiving the response from the electrical key transmitter sub-assembly, 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 exterior detection area the electrical key transmitter sub-assembly is in.
        *d The electrical key transmitter sub-assembly receives the LF waves from the vehicle and responds using RF waves. (The certification ECU (smart key ECU assembly) recognizes which exterior detection area the electrical key transmitter sub-assembly is in.)
        *e The certification ECU (smart key ECU assembly) sends registered key ID information to the electrical key transmitter sub-assembly using LF waves. (Up to 7 key IDs can be registered.)
        *f The electrical key transmitter sub-assembly sends the key ID information using RF waves. When the certification ECU (smart key ECU assembly) receives it, verification completes.
        *g Radio wave interference (Channel switching)

        The multi-channel system changes channels when communication on the RF band (*b, *d and *f) is interrupted by radio wave interference.

        Refer to the table below to confirm when the system changes 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 Channels will not be switched. Channels will be switched. Channels will be switched. Channels will be switched.

  6. DIAGNOSIS


    1. Start Function


      1. The certification ECU (smart key ECU assembly) can detect malfunctions in the smart entry and start system when the power source is on (IG).

      2. When the ECU detects a malfunction, a message is displayed on the multi-information display to warn the driver. At the same time, the ECU stores a 5-digit Diagnostic Trouble Code (DTC) in its memory.

      3. The indicator light warning continues for 15 seconds even after the engine switch is turned off.

      4. The 5-digit DTCs can be read after connecting the Global TechStream (GTS) to the DLC3.

      5. The smart entry and start system may not operate successfully if a malfunction occurs.