Lexus IS250 IS220d GSE20 ALE20 - THEFT DETERRENT
THEFT DETERRENT SYSTEM (w/ Intrusion Sensor) - ON-VEHICLE INSPECTION
| 1. OUTLINE OF THEFT DETERRENT SYSTEM |
When the theft deterrent system detects that the vehicle is being tampered with, the system sets off the alarm, causing the horns or siren to sound and the lights to light up or blink in order to alert people around the vehicle to the theft.
Each mode has 4 states; a disarmed state, an arming preparation state, an armed state and an alarm sounding state.
Disarmed state:
Arming preparation state:
Armed state:
Alarm sounding state:
- Alarm time:
- Approx. 30 sec.
| Alarm Method | Headlight*1 | Blinking |
| Taillight*1 | Blinking | |
| Hazard Warning Light | Blinking | |
| Interior Light | Illuminating | |
| Vehicle Horn | Sounding (approx. 0.4 second cycles) | |
| Security Horn*1 | Sounding (approx. 0.4 second cycles) | |
| Theft Warning Siren*2 | Sounding | |
| Alarm Time | Approx. 30 sec. (Maximum 10 times) | |
- HINT:
| 2. ACTIVE ARMING MODE |
- HINT:
Active arming mode
| Condition | Item |
| Condition (1) | In the disarmed state, when the key is not in the actual area, the system state is switched if the following conditions is met. With all doors, engine hood and luggage compartment door closed, lock all doors by wireless operation. |
| Condition (2) | Allow approx. 30 sec. to elapse. |
| Condition (3) | Unlock all doors by wireless operation. Unlock any door. Open any door. Open engine hood. Open luggage compartment door. Reconnect battery. Turn the engine switch from off to on (IG). |
| Condition (4) | Open engine hood. Open luggage compartment door. Reconnect battery. Open any door. Unlock any door. Intrusion sensor detects movement within vehicle. |
| Condition (5) | Unlock all doors by wireless operation. Turn the engine switch on (IG) and run the engine approx. 2 seconds. |
| Condition (6) | After approx. 30 sec., alarm stops and system returns to armed state. |
| 3. FORCED DOOR LOCK CONTROL |
The forced door lock control prevents the vehicle from being tampered with. Immediately after a door is unlocked (alarm starts), the door is forced to lock by a forced door lock signal.
Conditions that force the doors to lock:
When the key is not in the actuation area and both of the following conditions are met.
| 4. PANIC ALARM CONTROL (AUSTRALIA, NEW ZEALAND) |
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 alarm control sets off the panic alarm by pressing the PANIC switch on the wireless transmitter under the following conditions:
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 met during panic alarm operation:
- HINT:
- Active arming mode: See ACTIVE ARMING MODE.
- Passive arming mode: See PASSIVE ARMING MODE.
| 5. OPERATION OF INTRUSION SENSOR |
An intrusion sensor is provided in the front interior light located in the front of the vehicle interior.
The main body ECU RH 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 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 satellite switch .
The intrusion sensor may erroneously detect intrusion in the following states:
The intrusion sensor may react to abnormal vibrations caused in cases such as parking in a multilevel parking tower, or by heavy rain or snowfall.
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 of the vehicle when any of the windows or sunroof is open.
The intrusion sensor may react to a hanger or other objects hanging in the cabin when they drop or swing.
| 6. THEFT WARNING (SELF-POWER) SIREN (EUROPE) |
The theft warning siren has an internal battery. If any of the vehicle's battery or communication lines are opened, the theft warning siren detects it by itself and sounds. Although the theft warning siren usually sounds by receiving a signal from the main body ECU RH.
The main body ECU RH sends an arming signal to the theft warning siren while switching to the armed state, as well as sending a disarming signal to the siren while switching to the disarmed state. Additionally, the main body ECU RH can sound the theft warning siren by sending an alarm signal in the alarm sounding state.
| 7. SECURITY INDICATOR OUTPUT |
The main body ECU RH outputs a signal to light up the security indicator, according to the state of the theft deterrent system. However, some of the actual lighting conditions of the security indicator are different from the output signals of the main body ECU RH.
| State of Theft Deterrent System* | Security Indicator | |
| Output Signals from Main Body ECU RH | Actual Lighting Condition | |
| Disarmed state 1, 2 | OFF | OFF (Immobiliser system unset) BLINKING (Immobiliser system set) |
| Arming preparation state | ON | ON |
| Armed state | OFF | BLINKING |
| Alarm sounding state | ON | ON |
| Time | Security Indicator |
| 0.2 sec. | ON |
| 1.8 sec. | OFF |
- HINT: