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Auto Theft » Engine Immobiliser
An engine immobiliser
is an electronic device that acts to isolate the ignition
system, the fuel system, the starter engine, or a
combination of these three systems. As most new vehicles
control these systems via the engine management system,
immobilisers on newer vehicles tend to interface with
this component. The immobiliser will not allow the
vehicle to be started without first receiving the
correct signal from the person starting the vehicle.
This signal can be communicated to the immobiliser
unit in a number of ways:
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- Transponder: an electronic proximity
device that converts electronically coded signals
into radio signals. Requires no action by owner
to set or unset. Usually built in to original
keys.
- Remote Key: usually a hand-held
device which, when activated, transmits a radio
or infrared frequency to control the immobiliser.
- Electronic Key: a coded key,
which enables the engine to start.
- Coded Keypad: requires a code
or PIN to be entered to disable the immobiliser.
- Key Switch: a switching method
to disable the immobiliser.
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