| 摘要 |
A vehicle anti-theft system, which can prevent a vehicle from being unjustly moved and can prevent a password code for anti-theft from being stolen. This system includes: detecting whether a main relay has been turned on for a predetermined time after an ignition switch if turned off; increasing a number in a counter to detect that the main relay has not been operating for the predetermined time and cutting off engine fuel injection and ignition control to prohibit the engine from operating when the counter contents is equal to or more than a predetermined number. Therefore, the operation of the engine and potential password code theft by communication can be prohibited.
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