The Passive Anti-Theft System (Pats) - Aston Martin DB AR1 Owner's Manual

The Passive Anti-Theft System (PATs)

The PATs system is a fully automatic engine immobiliser. The system consists
of a transponder inside the head of each ignition key and, around the
ignition lock, a transceiver aerial which communicates signals to the PATs
electronic control unit. The PATs control unit communicates with the engine
management controller to immobilise the engine until a valid code signal is
received from the ignition key.
Starting the Engine
When the alarm system is disarmed and the vehicle key is turned in the
ignition lock, the PATs controller sends a signal to the ignition key. The
ignition key must respond with a valid code before engine start will be
enabled. If a valid code is received, the ignition system will operate
normally.
If the key code is not received, or is invalid, engine start remains disabled.
Caution: To ensure a trouble-free signal exchange between the key and the vehicle,
do not cover the key head with any metal object (e.g. another key).
Two coded keys are provided with the vehicle. These
keys fit both the door locks, the boot lock and the ignition
lock.
In the event of loss of one of the keys, duplicate keys can
be created and programmed from the other key by your
Aston Martin dealer.
E - Security Systems
1-E-7