Diesel Data: Automotive Repair

Theft Deterrent System















THEFT DETERRENT SYSTEM:

SYSTEM DIAGRAM





SYSTEM DESCRIPTION

1. OUTLINE OF THEFT DETERRENT SYSTEM
(a) When the theft deterrent system detects that the vehicle is being tampered with, the vehicle horn and security horn will sound; interior lights will illuminates; and hazard warning lights, taillights and headlights will flash continuously.
(b) he system has 2 modes: active arming mode (see ACTIVE ARMING MODE) and passive arming mode (see PASSIVE ARMING MODE). Passive arming mode can be turned ON and OFF (see METHOD FOR CHANGING OF PASSIVE MODE).
(c) Each 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 nor operating.

(2) Arming preparation state:

- The theft deterrent system is not operating.

(3) Armed state:

- The theft deterrent system is operating.

Alarm time:
60 ± 5 seconds
(4) Alarm sounding state:

- The alarm function is operating.

Refer to table below for alarm method and time:





HINT: If, during the alarm sounding state, a door is unlocked and no key is in the ignition key cylinder, a forced door lock signal will be output (see FORCED DOOR LOCK CONTROL).

2. ACTIVE ARMING MODE

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





3. PASSIVE ARMING MODE

HINT:
- Passive arming mode can be turned on and off (see METHOD FOR CHANGING OF PASSIVE MODE).
- The vehicle's initial alarm setting is active arming mode.
- During passive arming mode, the theft deterrent system enters the armed state even if the doors are not locked.
- Passive arming mode starts the alarm control after the doors are closed.
- Detecting that the doors are unlocked does not set off the alarm during passive arming mode.
- A forced door lock signal is not output during passive arming mode (see FORCED DOOR LOCK CONTROL).
- When the theft deterrent system detects that the doors are opened during passive arming mode, the alarm is not set off immediately depending on the entry delay time setting.
- If any of the following conditions is fulfilled during passive arming mode, the theft deterrent system will switch to active arming mode.

- With all doors and engine hood closed, lock all doors by key operation.
- With all doors and engine hood closed, lock all doors by wireless operation.
- With any door or engine hood open, lock all doors and close all doors and engine hood.





HINT:
- *1: Disarmed state (1) is the normal disarmed state.
- *2: Disarmed state (2) is set from either the disarmed state (1) or the arming preparation.
- *3: When a door is opened while all doors are closed during passive arming mode, the entry delay time starts. If the state switching condition (from armed state to disarmed state (1) or (2)) is fulfilled, during the entry delay time, the theft deterrent system will return to disarmed state (1) or (2). However, if the state transfer condition is not fulfilled, the theft deterrent system will assume that a break-in or theft is occurring and sound the alarm.
The entry delay time can be customized to 0, 14 or 30 seconds.

4. METHOD FOR CHANGING OF PASSIVE MODE (ON OR OFF)









HINT:
- Initial mode is PASSIVE MODE OFF.
- If the ignition switch is turned ON, change will be cancelled.
- * Entry delay time.

5. FORCED DOOR LOCK CONTROL
(a) 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:

- No key is in the ignition key cylinder.
- 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 of active arming mode.
- A door is unlocked.

6. PANIC ALARM CONTROL
(a) The panic alarm control activates the panic alarm when the wireless transmitter PANIC switch is pressed. The panic alarm control operates independently from the theft deterrent system's alarm control's change from the armed state to the alarm sounding state.
(1) Conditions that cause the panic alarm control to set off the panic alarm:
The panic alarm control sets off the panic alarm when the PANIC switch on the wireless transmitter is pressed for over 2.4 seconds under the following conditions.

- The engine switch is OFF.
- The theft deterrent system is not in the alarm sounding state. (This condition is common both to active arming mode and to passive arming mode.)
- The panic alarm control is not operating (the alarm is not set off).

(2) Conditions that cause the panic alarm control to shut off the alarm:
The panic alarm control shuts off the panic alarm when any of the following conditions is fulfilled during panic alarm operation.

- The engine switch is turned ON.
- The wireless transmitter LOCK/UNLOCK switch is pressed.
- 60 ± 5 seconds have passed and the panic alarm has ended.
- The theft deterrent system switches to the alarm sounding state. (This condition is common both to active arming mode and to passive arming mode.) However, the alarm is still sounding, because the theft deterrent system has switched to the alarm sounding state.
Conditions for canceling the panic alarm are the same as the alarm control.

HINT: For more information about the active arming mode, see ACTIVE ARMING MODE. For more information about the passive arming mode, see PASSIVE ARMING MODE.

7. ALARM MEMORY FUNCTION
(a) If the alarm is set off (tampering is detected )while the theft deterrent system is in the armed state, the alarm memory function will record it. Whenever the theft deterrent system is cancelled, the alarm memory function causes the taillights to illuminate for 2 seconds in order to inform you that the alarm has been set off.
(1) Conditions of the alarm memory function that cause the taillights to illuminate:
When the theft deterrent system has entered into the alarm sounding state (tampering has been detected )even once, the taillights will illuminate for 2 seconds if any of the following conditions is fulfilled.

- Switched to the disarmed state from the armed state during active arming mode.
- Switched to the disarmed state (1) from the armed state during passive arming mode.

HINT: For more information about the active arming mode, see ACTIVE ARMING MODE. For more information about the passive arming mode, see PASSIVE ARMING MODE.

8. SECURITY INDICATOR OUTPUT
(a) The security indicator turn on and off based on output signals from the multiplex network body ECU. However, in some cases the actual status of the security indicator is different from the output signals of the multiplex network body ECU.

Output:





Blinking cycle:





HINT:
- The above condition is common both to active arming mode and to passive arming mode.
- When the immobilizer system is set, the security indicator blinks during the disarmed state and the armed state due to the output signals from the immobilizer system.