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Immobilizer Function (D20DT, D27DT, D27DTP, G32D)
The immobilizer system prevents the vehicle theft by allowing only the authorized key to start the engine.
The transponder inside the key communicates with the immobilizer installed in the key box, and the
system permits the engine to start after confirming the encrypted coding from the engine ECU.
Transponder
(for DI engine)
The transponder sends an encrypted signal
to the unit as a response.
In the following cases, a driver may be unable to start the vehicle with the immobilizer.
-
When two or more immobilizer keys come into contact with (each) other(s).
-
When the key is close to any device sending or receiving electromagnetic fields or waves.
-
When the key is close to any electronic or electric devices such as lightening equipment, security keys
or security cards.
-
When the key is close to a magnetic or metal object or a battery.
The immobilizer unit transmits the encrypted
code to the transponder.
Transponder for
gasoline engine
Immobilizer Unit
The transmitted code is changed to an
encrypted signal in the unit.
The system compares the signal from
transponder and the encrypted signal in
immobilizer unit.
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