7

Automobile security circuits

Modern automobiles virtually bristle with various ‘security’ devices and gadgets, which are designed to enhance the vehicle’s safety, reliability, mechanical efficiency, and immunity to theft. If you own a reasonably modern (post 1994) automobile, it is probably already so well equipped with good security devices that you will not need to add any more. If, on the other hand, your vehicle dates back well beyond 1989, you may be able to gain by fitting one or more of the simple security circuits that are described in this chapter, or by using one or more of the various commercial ‘add-on’ vehicle security units that are widely available.

To help illustrate some of the advances that have taken place in automobile ...

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