Antitheft and Alarm Systems: Description and Operation

GENERAL DESCRIPTION

Immobilizer system
The immobilizer system consists of the ignition key, the key ring antenna, the immobilizer-ECU, and the PCM. The ignition key has a built-in transponder. The key ring antenna is installed on the steering lock key cylinder. Only the registered ignition key permits the engine to start, therefore, the engine can never be started by means of a forged key or by connecting the ignition wiring directly. The system is significantly safe and reliable against theft. In addition, the driver has only to turn the ignition switch to the "ON" position to activate the immobilizer system. If the requirements for starting the engine are not satisfied, the engine will be immobilized. If the ignition key is lost or another ignition key is added, the encrypted code can be registered or erased by using scan tool. If the ignition switch is turned to the "ON" position by using the ignition key, which does not include the transponder, includes an unregistered transponder, or has an incorrect ID code, "SECURITY" indicator inside the combination meter will flash.