Simple, inexpensive vehicle immobilizer 2011-08-26

This vehicle immobilizer circuit is quite possibly the smallest, simplest, cheapest and easiest to make, install and operate.

Thoroughly field tested, robust and weather resistant design of vehicle immobilizer which can prevent vehicle theft even if thief has keys!

Here's the fancy, animated schematic:

These are all the...

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schmitt trigger said:

If the startesr solenoid is energized continously with this circuit, how will it prevent theft?

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Sceadwian said:

Calling it the G-spot is nearly the worst thing ever.

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HarveyH42 said:

Think that's bad... Few months ago we took on a new customer at work, called "BJ's". It's a wholesale club, like Sam's. And they are very particular about their cigarette orders, which is part of my department. Every Wednesday, we fill their orders, check and recheck everything, which makes it necessary to repeat their name, numerous times. Fortunately, I'm on good terms with the female employees, but sometimes wonder if there could be some misinterpretation, or perhaps I deliberately phrase things suggestively.

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