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9B-4
Immobilizer System
The Immobilizer System provides an additional theft deterrent to the vehicle in which it is installed and prevents it from
being started by unauthorized persons.
When the ignition key with integrated transponder is turned to the ON position, ECU (Engine Control Unit) checks the
crypto code of key and, if correct, allow the vehicle to start the engine. Only valid ignition keys can be used to start the
engine. The immobilizer system isolates fuel injection control system in ECU (electric control unit) when invalid keys are
used.
Transponder code
The 2 keys have respectively coded transponders.
When lost the keys
When lost the keys, the transponder key have to be erased from the engine control unit.
When the transponder has damaged
When the transponder has damaged, replace it with new one and register new code on engine control unit at our
authorized service network. Otherwise, the engine cannot be started.
Notice
• In any cases, the immobilizer system can not be removed from the vehicle.
If you attempt to remove it and damage the system, starting will be impossible, so never attempt to remove,
damage or modify it.
• Do not drop or shock to the transponder in the key, or it could be damaged.
• If the transponder has damaged, replace the key and register the code to the engine control unit to be started.
• When replacing the engine control unit, replace all transponders at the same time.
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
The ignition key with immobilizer system has a key illumina-
tion lamp. It will help to find the door lock when dark.
Notice
• In any cases, the immobilizer system can not be removed
from the vehicle.
If you attempt to remove it and damage the system,
starting will be impossible, so never attempt to remove,
damage or modify it.
• Do not drop or shock to the transponder in the key, or it
could be damaged.
Y220_09B048
ELECTRIC SYSTEM
REXTON SM - 2004.4
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