Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - THEFT DETERRENT / KEYLESS ENTRY
THEFT DETERRENT SYSTEM (w/ Entry and Start System) - SYSTEM DESCRIPTION
| THEFT DETERRENT SYSTEM DESCRIPTION |
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 security horn*1 or theft warning siren*2 will sound, the room light will illuminate, and the headlights*3, taillights*3 and 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.
The system has 4 states: disarmed state, arming preparation state, armed and alarm sounding state.
- HINT:
| FUNCTION OF MAIN COMPONENT |
| Function | Outline |
| Security indicator | Informs driver of the theft deterrent system status. |
| Security horn*1 | Sounds when an attempted break-in or theft is detected. Located in the engine compartment. |
| Theft warning siren*2 | Sounds when an attempted break-in or theft is detected. Located on the quarter inner LH. |
| Taillight*3 | Flashes when an attempted break-in or theft is detected. |
| Map light and rear map light | Illuminates when an attempted break-in or theft is detected. The map light has intrusion sensor cancel switch. For vehicles equipped with a tilt sensor, the intrusion sensor cancel switch also functions as tilt sensor OFF switch. |
| Headlight*3 | Begins flashing when an attempted break-in or theft is detected. |
| Hazard warning light | Begins flashing when an attempted break-in or theft is detected. |
| Vehicle horns | Sounds when an attempted break-in or theft is detected. |
| 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 switch | Detects the back door open status (open or closed). |
| Main body ECU | Detects the engine switch condition (off, on (ACC), or on (IG)). |
| Intrusion sensor*4 | If an intrusion is detected, the alarm is activated. |
| Yaw rate sensor*4 | After the theft deterrent system is set, detects vehicle tilt. If vehicle tilt changes, the certification ECU (smart key ECU assembly) determines there was theft. |
| Glass breakage sensor*5 | Sounds alarm when the left or right quarter window glass or back door glass is broken, or when there is short in the wire harness. |
- HINT:
- *1: w/ Security Horn
- *2: w/ Theft Warning Siren
- *3: For vehicles with a theft warning siren, this part is not related to the theft deterrent system.
- *4: w/ Intrusion Sensor
- *5: w/ Glass Breakage Sensor
| SYSTEM FUNCTION |
Disarmed state:
Arming preparation state:
Armed state:
Alarm sounding state:
| OPERATION OF INTRUSION SENSOR |
- NOTICE:
- Ultrasonic waves are used to detect intrusion. Ultrasonic waves do not penetrate steel or glass. When any of the door glasses 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 door glasses or sliding roof open. When parking the vehicle with the door glasses or the sliding roof open for ventilation, turn off the intrusion sensor using the intrusion sensor cancel switch.
An intrusion sensor is provided in the map light assembly located in the front of the vehicle interior.
The certification ECU (smart key ECU assembly) 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 certification ECU (smart key ECU assembly) 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.