Anti-theft car protection system

摘要

The system has a first control unit 1 capable of storing a first ID code and a second control unit 11 capable of storing a second ID code, connected through an interactive communication line 12. A first means issues an ON signal when an ignition key cylinder is turned from OFF position to ON position. Upon receiving the ON signal, a second means compares the first and second ID codes and issues a disagreement signal when they disagree with a given combination. A third means suppresses engine starting when receiving the disagreement signal. A fourth means renews the given combination after starting of the engine.