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).

        Table 1. 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
        Tip:

        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

    Tip:

    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).

      Table 2. 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
      Table 3. Blinking Cycle

      Time

      Security Indicator

      0.2 seconds

      On

      1.8 seconds

      Off
      Tip:

      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.