Lexus IS250 IS220d GSE20 ALE20 - THEFT DETERRENT

THEFT DETERRENT SYSTEM (w/ Intrusion Sensor) - SYSTEM DESCRIPTION

THEFT DETERRENT SYSTEM

The theft deterrent system will operate when somebody attempts to forcibly enter the vehicle, unlock any door or luggage compartment door or open the engine hood or the luggage compartment door without using the key. This system causes the lights to light up and the horns or siren to sound in order to deter break-in and theft.

The security indicator comes on or blinks to inform the driver that the alarm is set or not set.

The system locks all doors if any door is unlocked during the time that the alarm is activated.

The main body ECU RH controls this system.

FUNCTION OF MAIN COMPONENT

Component	Function
Security indicator	Informs driver of theft deterrent system status.
Security horn^*1	Sounds when attempted brake-in or theft is detected.
Theft warning siren^*2	Sounds when attempted break-in or theft is detected.
Headlights^*1	Blink when attempted break-in or theft is detected.
Taillights^*1	Blink when attempted break-in or theft is detected.
Hazard warning lights	Blinking when attempted break-in or theft is detected.
Interior light	Blinks when attempted break-in or theft is detected.
Vehicle horns	Sounds when attempted break-in or theft is detected.
Door courtesy light switch	Detects door status (open or closed).
Door lock position switch	Detects door status (locked or unlocked).
Engine hood courtesy switch	Detects engine hood status (open or closed).
Luggage compartment door courtesy switch	Detects luggage compartment door status (open or closed).
Power source ECU	Detects engine switch status (off or on (IG)).
Intrusion sensor	Sends a signal to the main body ECU RH to sound the alarm when detecting an intrusion.

HINT:

How to determine if the vehicle is equipped with the intrusion sensor:
Check if "INTRUSION SENSOR ON/OFF" item can be selected by operating the satellite switch.
If "INTRUSION SENSOR ON/OFF" item can be selected, the intrusion sensor is installed, and if not, the sensor is not installed. If the vehicle is not equipped with the intrusion sensor, proceed to "THEFT DETERRENT SYSTEM (w/o Intrusion Sensor)".

*1: Australia, New Zealand

*2: Europe

SYSTEM FUNCTION

Disarmed state:

The alarm function is not operating.

The theft deterrent system is not operating.

Arming preparation state:

The time until the system goes into the armed state.

The theft deterrent system is not operating.

Armed state:

The theft deterrent system is operating.

Alarm sounding state: