FUNCTION
The theft deterrent system has the following functions:
| Function | Outline |
|---|---|
| Alarm | When the theft deterrent system switches to the alarm state, the warning items are operated and the alarm sounds for approximately 27.5 seconds. |
| Alarm Indicator | When the theft deterrent system switches to the armed preparation state or alarm state, the security indicator light is illuminated to inform the user. This indicator is also the engine immobiliser indicator, which blinks when the engine immobiliser is in the set state. |
| Forced Door Lock | The main body ECU (multiplex network body ECU) transmits a door lock signal to all the doors when all the following conditions are met:
The function stops when one of the following conditions is met:
|
| Panic Control* | When the PANIC button of the key is pressed, the main body ECU (multiplex network body ECU) operates the alarm function. |
*: Models except for Europe
CONSTRUCTION
Self-power Siren
During a normal operation, self-power siren sounds an alarm in accordance with the operation signal from the main body ECU (multiplex network body ECU). Because this siren has an internal battery, it can independently sound an alarm even if the vehicle battery terminals are disconnected or if the wiring harnesses that are related to the system are cut.
Intrusion Sensor (Theft Warning Ultrasonic Sensor)
An intrusion sensor is provided in the map light assembly.
If the intrusion sensor detects an inappropriate entry into the vehicle interior by an intruder (including intrusions made by breaking window glass), a warning signal is sent to the main body ECU.
This sensor transmits ultrasonic waves in the vehicle interior. When an intruding object moves, it disrupts the reflection of the ultrasonic waves, and the sensor detects the resulting changes in the phase of the ultrasonic waves.
The intrusion sensor, which is linked to the auto alarm system, sets automatically when the system transfers to the armed state (and the setting of the auto alarm is completed).
When the intrusion sensor detects a moving object in the vehicle interior, the system transfers to the alarm state. Then, the system sounds the horn intermittently and blinks the hazard warning light for approximately 27.5 seconds and performs a forced locking operation.
Tech Tips
Ultrasonic waves are used to detect intrusion. Ultrasonic waves do not penetrate steel or glass. When any of the side windows or sliding roof is left open, ultrasonic waves may escape. This may result in the detection of people in the surroundings, leaves or insects entering the vehicle, strong wind or other ultrasonic wave sources in the environment when the vehicle is parked with the side windows or sliding roof open.
When parking the vehicle with the side windows or the sliding roof open for ventilation, turn off the intrusion sensor using the off switch.
Intrusion Sensor Cancel Switch
An intrusion sensor cancel switch is provided in the map light assembly.
When the system is in the disarmed state, pressing the intrusion sensor cancel switch can disable the function of the intrusion sensor and tilt sensor*.
*: Destination package for United Kingdom
Tilt Sensor (Yawrate Sensor) (Destination package for United Kingdom)
The tilt sensor is incorporated in the yawrate sensor located inside the front floor console.
The tilt sensor detects pitch angle of vehicle inclination using the 2 deceleration sensors. When the tilt sensor detects a change in the pitch angle of vehicle inclination, such as a thief attempting to tow the vehicle, it transmits the warning signal to the main body ECU (multiplex network body ECU).
The main body ECU (multiplex network body ECU) activates the tilt sensor when the system changes from the armed preparation state to the armed state. If warning signal is input from the tilt sensor during the armed state, the ECU changes to the alarm state in order to sound the alarm.
When the system is in the disarmed state, pressing the intrusion sensor cancel switch can disable the function of the tilt sensor. If the system changes to the armed state, the tilt sensor will not activate. This function is canceled each time all doors are unlocked with a entry and start system, and is reinstated when the tilt senor is on.
Note
Under the following conditions, if the vehicle tilts or the acceleration of gravity in the vertical and horizontal directions of the vehicle is detected by the tilt sensor, the alarm may sound accidentally. To avoid accidental alarm activation, turn the tilt sensor off using the intrusion sensor cancel switch.
The vehicle is transported by ferry, trailer or train.
The vehicle is parked in multi-story parking facilities.
The vehicle is washed by a conveyor type car washing machine.
A tire blew out.
The vehicle is jacked up for a tire or wheel change.
An earthquake occurs or road subsides.
Goods such as skis or snowboards are loaded or unloaded.
Glass Print Pattern Type Glass Breakage Sensor (Destination package for United Kingdom)
The main body ECU (multiplex network body ECU), print patterns on the rear door quarter window glass and rear window defogger are connected in series, and when the main body ECU (multiplex network body ECU) detects an open circuit, it determines that one of the windows has been broken.
When the main body ECU (multiplex network body ECU) receives an open circuit signal from the print pattern or rear window defogger for approximately 0.4 seconds while in the armed state, it determines that one of the windows has been broken and changes the system to the alarm state in order to activate an alarm.
OPERATION
The states of the theft deterrent system are as follows:
| State | Description | Theft Detection |
|---|---|---|
| Disarmed State | The theft deterrent system has not been set by the user. | Not possible |
| Armed Preparation State | This is the preparation state before the theft deterrent system becomes active (enters the armed state) when the system has been set by the user. | Not possible |
| Armed State | The theft deterrent system is active. (Theft can be detected.) | Possible |
| Alarm State | A theft attempt has been detected and the warning operation activates. | Possible |
| *a | Disarmed State |
| *b | Armed Preparation State |
| *c | Armed State |
| *d | Alarm State |
The theft deterrent system activates as shown in the diagram above when one of items in the table occurs in order to cause the system to enter the respective state.
| Condition | Item |
|---|---|
| (1) | When one of the following conditions is met while the power source is off and the key is not in the actuation area:
|
| (2) | The system switches to the armed state when the doors, engine hood and back door are closed and locked, and 30 seconds have elapsed. |
| (3) | The system switches to the disarmed state when one of the following conditions is met:
|
| (4) | The system switches to the alarm state when one of the following conditions is met:
|
| (5) | The system switches to the disarmed state when one of the following conditions is met:
|
| (6) | The system reverts to the armed state after the alarm time elapses. |
*1: Models with tilt sensor (yawrate sensor)
*2: Models with glass breakage sensor