Theft Deterrent System System Description

Vehicle Interior. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Theft Deterrent Keyless Entry. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

  1. THEFT DETERRENT SYSTEM DESCRIPTION

  1. FUNCTION OF MAIN COMPONENT

  1. ACTIVE ARMING MODE

  1. FORCED DOOR LOCK CONTROL

  1. SECURITY INDICATOR LIGHT OUTPUT

  1. ALARM MEMORY FUNCTION

Theft Deterrent System -- System Description



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 alarm sound and the hazard warning lights and side turn signal lights 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 is disconnected from the negative (-) battery terminal and then reconnected. If the system enters the alarm sounding state, any unlocked doors 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:

      1. The alarm function is not operating.
      2. 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
      		Alarm Time
      Vehicle horns
      		Security horn assembly
      		Hazard warning lights and side turn signal lights
      Sounding (cycle of 0.4 seconds)
      		Sounding (cycle of 0.4 seconds)
      		Blinking (cycle of flasher relay)
      		30 +/-5 seconds

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

FUNCTION OF MAIN COMPONENT

Function
Outline
Security indicator light assembly
Informs the driver of the theft deterrent system status.
Hazard warning lights
Side turn signal lights
Begins blinking when an attempted break-in or theft is detected.
Vehicle horns (low pitched horn assembly, high pitched horn assembly)
Sounds when an attempted break-in or theft is detected.
Security horn assembly
Sounds when an attempted break-in or theft is detected.
Front door courtesy light switch assembly LH/RH
Rear door courtesy light switch assembly LH/RH*
  1. Located on each door.
  2. Turns on when the door is open and off when the door is closed. Outputs the door status (open or closed) to the theft warning ECU assembly.
Hood lock assembly
  1. Built-in a security courtesy switch..
  2. Turns on when the engine hood is open and off when the engine hood is closed. Outputs the engine hood open status (open or closed) to theft warning ECU assembly.
  1. *: for Double Cab

ACTIVE ARMING MODE
HINT:
Active arming mode starts alarm control immediately after the doors are locked.

System State
State Switching Condition
Transfer to
1. Disarmed state
Perform one of following and system changes to "Arming preparation state":
  1. With all doors and engine hood closed, lock all doors by 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 changes to "Disarmed state":
  1. Unlock all doors by wireless operation
  2. Unlock door
  3. Open engine hood
  4. Turn ignition switch to ON or ACC
  5. Reconnect battery
1. Disarmed state
Perform one of following and system changes to "Disarmed state":
  1. Allow 30 (+/-1.5) seconds to elapse*1
  2. Allow 10 (+/-1.5) seconds to elapse*2
3. Armed state
3. Armed State
Perform one of following and system changes to "Disarmed state":
  1. Unlock all doors by wireless operation
  2. Turn ignition switch to ON or ACC
1. Disarmed state
Perform one of following and system changes to "Alarm sounding state":
  1. Open engine hood
  2. Open door
  3. Unlock all doors without wireless operation
  4. Disconnect and reconnect cable to negative (-) battery terminal
  5. Force engine ignition system to turn on without proper engine start method
4. Alarm sounding state
4. Alarm sounding state
Perform one of following and system changes to "Disarmed state":
  1. Unlock all doors by wireless operation
  2. Turn ignition switch to ON or ACC
1. Disarmed state
Perform one of following and system changes to "Armed state":
  1. Allow 30 (+/-5) seconds to elapse
3. Armed state (alarm stops sounding)
  1. *1: for Arming Preparation State 30 Seconds
  2. *2: for Arming Preparation State 10 Seconds

FORCED DOOR LOCK CONTROL

  1. 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:

      1. 0.4 seconds have elapsed after the previous output of a forced door lock signal.
      2. The theft deterrent system is in the alarm sounding state.
      3. A door is unlocked.

SECURITY INDICATOR LIGHT OUTPUT

  1. The security indicator light assembly turns on and off based on output signals from the theft warning ECU assembly. However, in some cases, the actual status of the security indicator light is different from the output signals from the theft warning ECU assembly.

    Output
    State of Theft Deterrent System
    		Security Indicator Light Assembly
    Output Signals from ECU
    		Actual Lighting Condition
    Disarmed state
    		Off
    		Off (engine immobiliser system unset)
    Blinking (engine 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

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

ALARM MEMORY FUNCTION

  1. The alarm memory function informs the user if the theft deterrent system entered the alarm sounding state while the user was away.

    1. After the theft deterrent system is set, if the system enters the alarm sounding state and the alarm sounding state ends before the theft deterrent system is canceled by the user, the alarm memory function will operate. When the theft deterrent system is canceled by the user, the alarm memory function will flash the hazard warning lights 3 times at 0.35 seconds intervals.