THEFT DETERRENT SYSTEM > SYSTEM DESCRIPTION |
| OUTLINE OF THEFT DETERRENT SYSTEM |
Disarmed state:
Arming preparation state:
Armed state:
Alarm sounding state:
| Alarm Method | Hazard Warning Lights | Blinking |
| Vehicle Horns | Sounding (approx. 0.4 second cycles) | |
| Theft Warning Siren | Sounding | |
| Alarm Time | Approx. 27.5 seconds | |
| FUNCTION OF MAIN COMPONENTS |
| Component | Function |
| Security indicator light | Informs driver of theft deterrent system status. |
| Theft warning siren | Sounds when attempted break-in or theft is detected. |
| Hazard warning lights | Blink when attempted break-in or theft is detected. |
| Vehicle horns | Sound when attempted break-in or theft is detected. |
| Door courtesy light switch | Detects door status (open or closed). |
| Door unlock detection switch | Detects door status (locked or unlocked). |
| Security courtesy switch | Detects engine hood status (open or closed). |
| Back door courtesy switch | Detects back door status (open or closed). |
| Intrusion sensor (theft warning ultrasonic sensor) | Sends a signal to the main body ECU (multiplex network body ECU) to sound the alarm when detecting an intrusion. |
| Tilt sensor (yaw rate and acceleration sensor)* | Sends a signal to the main body ECU (multiplex network body ECU) to sound the alarm when detecting pitch angle of vehicle inclination. |
| Glass breakage sensor (back door glass)* | Sends a signal to the main body ECU (multiplex network body ECU) to sound the alarm when detecting breakage of back door glass. |
| ACTIVE ARMING MODE |
Active arming mode:
This system operates as described in the diagram below when one of the items for each condition is met.

| Condition | Item |
| Condition [1] | In the disarmed state 1, when the power switch is off, the system state is switched if the following condition is met:
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| Condition [2] |
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| Condition [3] |
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| Condition [4] |
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| Condition [5] |
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| Condition [6] |
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| Condition [7] |
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| Condition [8] |
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| Condition [9] | In the disarmed state 1, when the power switch is off, the system state is switched if the following condition is met:
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| Condition [10] |
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| FORCED DOOR LOCK CONTROL |
The forced door lock control prevents the vehicle from being tampered with. Immediately after a door is unlocked (alarm starts), all doors are forced to lock by a forced door lock signal.
Conditions that force the doors to lock:
| PANIC ALARM CONTROL (w/ Panic Switch) |
The panic alarm control makes it possible to voluntarily set off the panic alarm by pressing the panic switch on the wireless transmitter.
Conditions that cause the panic alarm control to set off the panic alarm:
The panic switch on the wireless transmitter is pressed under the following conditions:
Conditions that cause the panic alarm control to shut off the alarm:
Any of the following conditions is met during panic alarm operation:
| GLASS BREAKAGE SENSOR (w/ Combination Meter Assembly with mph Units) |
The main body ECU (multiplex network body ECU) detects breakage of the glass breakage sensor (back door glass). If the main body ECU (multiplex network body ECU) detects breakage of the glass breakage sensor (back door glass) while the theft deterrent system is functioning, it swill sound the alarm for 27.5 seconds.
| OPERATION OF INTRUSION SENSOR |
An intrusion sensor is provided in the map light assembly located in the front of the vehicle interior.
The main body ECU (multiplex network body ECU) activates the intrusion sensor when the system changes from the disarmed state to the armed preparation state. If an intrusion detection signal is input from the intrusion sensor during the armed state, the main body ECU (multiplex network body ECU) changes to the alarm state in order to output an alarm.
When the system is in the disarmed state, the function of the intrusion sensor can be disabled by pressing the intrusion sensor cancel switch.
The intrusion sensor may erroneously detect intrusion in the following states:
Persons or pets are in the vehicle.
The vehicle is parked in a place where extreme vibrations or noises occur, such as in a parking garage.
Ice or snow is removed from the vehicle, causing the vehicle to receive repeated impacts or vibrations.
The wind or something similar causes an externally mounted reflectively coated windshield cover to move.
The intrusion sensor may react to a hanger or other objects hanging in the cabin when they drop or swing.
The system changes to the armed state even when any of the windows or sunroof is open. The intrusion sensor may react to objects moving outside the vehicle when any of the windows or sunroof is open.
The vehicle is inside an automatic or high-pressure car wash.
The vehicle experiences impacts, such as hail, lightning strikes and other kinds of repeated impacts or vibrations.
| OPERATION OF TILT SENSOR (w/ Combination Meter Assembly with mph Units) |
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 a warning signal is received from the tilt sensor when in the armed state, the main body ECU (multiplex network body 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 the entry and start system, and is reinstated when the tilt senor is on.
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, an alarm may occur accidentally. To avoid accidental alarm activation, turn the tilt sensor off using the intrusion sensor cancel switch.
| THEFT WARNING (SELF-POWER) SIREN |
The theft warning siren has an internal battery. If power to the theft warning siren is interrupted or any of the communication lines are open, the theft warning siren detects it and sounds the alarm using the internal battery.
The theft warning siren has the following alarm controls: normal alarm control and open circuit alarm control. Under normal alarm control, the alarm sounds based on instructions from the main body ECU (multiplex network body ECU) assembly whereas under open circuit alarm control, the theft warning siren judges current security conditions and sounds the alarm by itself.
Normal alarm control
The theft warning siren sounds when the theft deterrent system is in the alarm sounding state and does not sound when the system is not in the alarm sounding state.
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Open circuit alarm control
The theft warning siren changes between the disarmed state and armed state in accordance with the theft deterrent system change between the disarmed state and armed state. If +B, GND or the communication line is open while the theft warning siren is in the armed state, the theft warning siren sounds.
During the open circuit alarm sounding state, the theft warning siren sounds intermittently for 27.5 seconds and then stops for 5 seconds and this pattern repeats a maximum of 9 times.
The intermittent sound will stop when either condition is met:
1. The theft warning siren changes to the disarmed state.
2. The open circuit is returned to normal.
| SECURITY INDICATOR OUTPUT |
The main body ECU (multiplex network body ECU) outputs a signal to turn on the security indicator light, according to the state of the theft deterrent system. However, some of the actual lighting conditions of the security indicator light are different from the output signals of the main body ECU (multiplex network body ECU).
| State of Theft Deterrent System | Security Indicator | |
| Output Signal from Main Body ECU (Multiplex Network Body ECU) | Actual Lighting Condition | |
| Disarmed state (1), (2) | 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 |
| Time | Security Indicator |
| 0.125 sec. | ON |
| 1.875 sec. | OFF |