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System Description
System DescriptionThe vehicle is equipped with a type IV immobilizer system that will disable the vehicle unless a programmed ignition key is used.
This system consists of a transponder located in the ignition key, an immobilizer control unit-receiver, an indicator, and the PCM.
When the key is inserted in the ignition switch and turned to the (II) position, the immobilizer control unit-receiver sends power to the transponder in the ignition key. The transponder then sends a coded signal back through the immobilizer control unit-receiver to the PCM. The code is a rolling type embedded in the receiver instead of the PCM. A handshake is required at PCM repair and replacement, and all keys are required at control unit-receiver repair and replacement.
- If a programmed key has been used, the immobilizer indicator will come on for about 2 seconds, then go off. When the ignition switch is turned OFF, the indicator will blink for about 5 seconds to signal that the unit has been set correctly, then the indicator will go off.
- If the wrong key has been used whose coda was not received or recognized by the unit, the indicator will come on for about 2 seconds, then it will blink until the ignition switch is turned OFF.