Construction Diagram

CONSTRUCTION DIAGRAM
1. When the ignition switch is turned to "ON" position, the ECM or PCM sends a requirement for the encrypted code to the immobilizer-ECU (at this time, the engine is remobilized).
2. When the immobilizer-ECU receives the requirement from the ECM or PCM, the immobilizer-ECU supplies power to the transponder inside the ignition key via the antenna. The energized transponder sends the encrypted code back to the immobilizer-ECU via the antenna.
3. The immobilizer-ECU judges the encrypted code with its code logic in itself. If they are identical, the immobilizer-ECU sends the encrypted code to the ECM or PCM.
4. If the ECM or PCM can not receive the encrypted code, the engine will be immobilized.