Assume that I do not want to replace a factory Engine Control Unit (ECU) with a custom ECU.
What are the other possible intercept points that I can use to allow/prevent a car from starting up? I only want to allow/prevent starting up.
I can think of possibly connecting the car battery through a relay and turning the relay on/off. Any other good ways to do it?
Best Answer
There are many ways to achieve this. Some are better than others in certain situations, and some only work on certain cars. I'll try to describe a few.
There are other ways but pretty much all of them would fall under these categories if you want to be able to control it electronically. Don't forget that the car can always just be towed. Once again, I'm assuming you are thinking of theft prevention.