THEFT DETERRENT SYSTEM SYSTEM DESCRIPTION


  1. THEFT DETERRENT SYSTEM DESCRIPTION


    1. The theft deterrent system is designed to deter vehicle break-ins and theft. If an attempted break-in or theft is detected, the vehicle horns and theft warning siren (self power siren) will sound and the hazard warning lights will flash. The system detects an attempted break-in or theft when any of the following occurs: 1) the vehicle is forcibly entered; 2) the engine hood is forcibly opened; 3) the doors are unlocked without the use of a key; or 4) the cable from the negative (-) battery terminal is disconnected and reconnected.

      If the system enters the alarm sounding state, any unlocked doors will automatically lock.

    2. The system has an active arming mode (refer to "Active Arming Mode").

    3. Active arming mode has 4 states: disarmed state, arming preparation state, armed state and alarm sounding state.


      1. Disarmed state:


        • The alarm function is not operating.

        • The theft deterrent system is not operating.

      2. Arming preparation state:

        The theft deterrent system is not operating.

      3. Armed state:

        The theft deterrent system is operating.

      4. Alarm sounding state:

        The alarm function is operating (30 +/-5 seconds).

        Alarm Method and Time
        Alarm Method Hazard Warning Light Blinking (cycle of flasher relay)
        Vehicle Horn Sounding (cycle of 0.4 seconds)
        Theft Warning Siren (Self Power Siren) Sounding (sweep)
        Security Indicator Illuminating
        Alarm Time 30 +/-5 seconds

        Tech Tips

        If during the alarm sounding state, one of the doors is unlocked without using a proper key, a forced door lock signal will be output (refer to "Forced Door Lock Control").

  2. FUNCTION OF MAIN COMPONENT

    Function Outline
    Security indicator Informs the driver of the theft deterrent system status.
    Theft warning siren (Self power siren) Sounds when an attempted break-in or theft is detected.
    Hazard warning light Begins flashing when an attempted break-in or theft is detected.
    Low pitched horn Sound when an attempted break-in or theft is detected.
    Intrusion sensor*1 If an intrusion is detected, the alarm is activated.
    Glass breakage sensor*2 Sounds alarm when the back door glass is broken.
    Door courtesy light switch Detects the door open status (open or closed).
    Door lock position switch Detects the door lock status (locked or unlocked).
    Engine hood courtesy switch Detects the engine hood open status (open or closed).
    Back door courtesy light switch Detects the back door open status (open or closed).
    Main body ECU Detects the ignition switch condition (off, ACC, or ON).

    • *1: w/ Intrusion Sensor

    • *2: w/ Glass Breakage Sensor

  3. ACTIVE ARMING MODE

    Tech Tips

    Active arming mode starts the alarm control immediately after the doors are locked.

    System State State Switching Condition Transfer to
    1. Disarmed state

    Perform one of following and system will go on to "Arming preparation state":


    1. With all doors and engine hood closed, lock all doors by entry lock operation*1 or wireless operation.

    2. With engine hood open, lock all doors and close engine hood.

    		 2. Arming preparation state
    2. Arming preparation state

    Perform one of following and system will go on to "Disarmed state":


    1. Unlock all doors by entry unlock operation*1 or wireless operation.

    2. Unlock all doors using key operation.

    3. Unlock door.

    4. Open engine hood.

    5. Turn the ignition switch to ON or ACC.

    6. Reconnect battery.

    		 1. Disarmed state

    Perform one of following and system will go on to "Armed state":


    1. Allow 30 (+/-1.5) seconds to elapse.

    		 3. Armed state
    3. Armed State

    Perform one of following and system will go on to "Disarmed state":


    1. Unlock all doors by entry unlock operation*1 or wireless operation.

    2. Unlock all doors using key operation.

    3. Turn the ignition switch to ON or ACC.

    		 1. Disarmed state

    Perform one of following and system will go on to "Alarm sounding state":


    1. Open engine hood.

    2. Open door.

    3. Unlock all doors without entry unlock operation*1 or wireless operation.

    4. Unlock door without using key operation.

    5. Disconnect and reconnect battery negative (-) cable.

    6. Force engine ignition system to turn on without proper engine start method.

    7. Intrusion sensor detects movement within vehicle.*2

    8. A glass window is broken.*3

    		 4. Alarm sounding state
    4. Alarm sounding state

    Perform one of following and system will go on to "Disarmed state":


    1. Unlock all doors by entry unlock operation*1 or wireless operation.

    2. Unlock all doors using key operation.

    3. Turn the ignition switch to ON or ACC.

    		 1. Disarmed state

    Perform one of following and system will go on to "Armed state":


    1. Allow 30 (+/-5) seconds to elapse.

    		 3. Armed state (alarm stops sounding)

    • *1: w/ Entry and Start System

    • *2: w/ Intrusion Sensor

    • *3: w/ Glass Breakage Sensor

  4. FORCED DOOR LOCK CONTROL


    1. The forced door lock control also helps to prevent the vehicle from being tampered with. When a door is unlocked and the alarm starts, the door is forced to lock by a forced door lock signal.


      1. Conditions that force the doors to lock:


        • 0.4 seconds have elapsed after the previous output of a forced door lock signal.

        • The theft deterrent system is in the alarm sounding state.

        • A door is unlocked.

  5. SECURITY INDICATOR OUTPUT


    1. The security indicator turns on and off based on output signals from the main body ECU (instrument panel junction block assembly). However, in some cases, the actual status of the security indicator is different from the output signals of the main body ECU (instrument panel junction block assembly).

      Output
      State of Theft Deterrent System Security Indicator
      Output Signals from ECU Actual Lighting Condition
      Disarmed state Off

      Off (Immobiliser system not set)

      Blinking (Immobiliser system set)
      Arming preparation state On On
      Armed state Off Blinking
      Alarm sounding state On On
      Blinking Cycle
      Time Security Indicator
      0.2 seconds On
      1.8 seconds Off

      Tech Tips

      When the engine immobiliser system is set, the security indicator blinks during the disarmed state and the armed state due to the output signals from the engine immobiliser system.