[svxistentialist]

Originally Posted by ItsPeteReally

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 .

Pete.

Magic Pete.

Thanks for that.

Just in case the dropping off after 10 seconds is peculiar to the USA tranny computer, it will make sense for me to just try the solid 5v feed first. If it remains stable, then Bingo, problem solved.

If it drops off after X, we won't even ask Y, we'll 555 it.

Ta

Joe