Overview – Alarm
- Make
- Aston Martin
- Model
- DB9 Factory Workshop Manual
- Year
- Issue 2, 2005
- Section
- Active Anti-Theft System › Overview – Alarm
Overview – Alarm
The Vehicle Alarm System (VAS) will generate an audible and visual warning if the vehicle doors, bonnet or boot are opened without first disarming the system using an authorised remote transmitter key.
There are two types of alarm system:
- Standard
- High Specification (optional). Includes an interior movement sensor and tilt sensor
The interior movement sensor offers further protection of the ignition barrel and steering wheel lock, the tilt sensor will detect unauthorised angular movement of the vehicle.
A Battery Backup sounder (BBS) is used to protect the sounder from disconnection. The BBS will sound if any attempt is made to disconnect it from the rest of the alarm system when the vehicle is armed.
General setting
The system will be armed on the first press of the remote transmitter ‘Lock’ button. The alarm system will arm and deadlock 25 seconds after receiving the arm request.
Door open
If the alarm system is set when any door, bonnet or boot are left open, then the alarm will be armed on all closed doors only, 25 seconds after the alarm set command has been requested. The open door, bonnet or boot will not be armed. 5 seconds after the open door, bonnet or boot have been closed, the alarm will Arm on that door, bonnet or boot.
Disable the Alarm
The alarm will be disabled following the unlock or boot open commands from the remote transmitter key or by turning the ignition key in the ignition barrel.
Reduced guard mode
When the vehicle is in reduced guard mode the mass movement and tilt sensors are disabled. This allows people or animals to be left in the vehicle.
With doors, boot and bonnet closed, ignition key in position ‘0’ or ‘I’ or within 60 sec after removing the keys the reduced guard button can be activated.
The ignition key must have been in position ‘II’ first.
When the alarm is set, the vehicle will enter reduced guard mode. To deactivate reduced guard mode simply insert and turn the ignition key to position ‘II’.
If the alarm is deactivated and then activated without turning the ignition key to position ‘II’ first, then the reduced guard mode will remain active.
Alarm Cycle
When the alarm has been activated there will be two outputs, these are listed below:
Audible output device (Siren)
The audible alarm signal is generated by the battery backed sounder. Duration of one alarm cycle is 25 seconds. The maximum number of cycles is ten.
Visible output device DI’s
The turn indicators are activated during and alarm cycle. The alarm signal is given by flashing all direction indicators for 5 minutes. Following an alarm cycle the vehicle alarm will remain set.
Panic Alarm
The Panic Alarm is to be used in emergency situations for attracting attention while in or outside the vehicle.
Activate Panic Alarm
The Panic Alarm can be activated using the Panic Alarm button on the remote transmitter, there are two ways to initiate the feature:
- Press the Panic Alarm button for a minimum time of 3 seconds.
- Press the Panic Alarm button twice, the second press must be made within 3 seconds from the first press.
Deactivate Panic Alarm
The panic alarm cannot be deactivated for the first 5 seconds of operation following its activation. Following the first 5 seconds of the panic alarm cycle, it can then be deactivated in following ways:
- Pressing the panic button on the remote transmitter.
- The activation time has exceeded (25 seconds).
Panic alarm cycle
When active, the DI’s will flash and the vehicle horn will sound for 25 seconds.
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