Quote:
Originally Posted by svxistentialist
In addition I will put an interruptor in the line, so the TPS pin is reading 0-5v rather than a steady 5v. This will ensure Power mode is permanently on. I am not sure what Mike means by a "555 timer", but if it is simple and easily installed, that is what I will use. Something like what breaks the circuit for the indicators or the hazard lights would do nicely, but of course no way I would accept the clicking. An inaudible device would have to be found.
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A good place to look at 555 circuits is
http://www.uoguelph.ca/~antoon/gadgets/555/555.html - look at figure 9b on the page. I'm still not convinced that you need a pulsed input to the TCU, but then I'm an idiot
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Pete.