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Method and apparatus for enhanced vehicle protection

  • US 5,684,339 A
  • Filed: 01/09/1997
  • Issued: 11/04/1997
  • Est. Priority Date: 01/16/1996
  • Status: Expired due to Term
First Claim
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1. A method for operating a security system for an automotive vehicle having an engine including engine running electrical components and an electronic engine controller, said security system including a theft control module, a lock switch having a selected position providing power to the engine running electrical components, and a key for operating said lock switch and carrying an electronic circuit storing a first security code, wherein said electronic engine controller maintains an attempted start count corresponding to the number of attempts of starting said engine, and wherein said theft control module has a memory storing a second security code, said method comprising the steps of:

  • placing said key in said lock switch in said selected position;

    comparing said attempted start count to a predetermined number;

    disabling said engine from starting if said attempted start count exceeds said predetermined number;

    starting said engine if said attempted start count does not exceed said predetermined number;

    thereafter, comparing said first security code with said second security code; and

    if said first security code does not equal said second security code, disconnecting power to said engine running electrical components thereby stopping said engine.

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