Hacking the Saturn Cruise Control ...

[cfg83]

Rick -

Originally Posted by Rick Rae

This goes back to my earlier confusion. For the CCM I was visualizing a little computer/control circuit that was doing all the cruise control management -- that's why I said the lines seemed reversed to me.

But if it's basically just a motor driver with safety interlocks and the PCM is doing all the thinking, then the lines make sense as shown. In that case, my original guess could very well be right on the mark.

I agree.

If you were down this way I'd invite you over. I'm a full-fledged geek and have an oscilloscope, logic analyzer, protocol analyzer, several DMMs... most anything you'd need for the electronics side.

But I think the most valuable thing for your test will be a second set of eyes to watch what happens while you drive down the road and fiddle with the cruise control.

Rick

I'm a nerd with all the wrong skillz for this stuff. I really wish I had taken a auto repair and electronics course in community college. But, my multi-meter skillz are improving.

Ooooooooh, I just remembered that I will be close to "Signal Electronics" tomorrow. If I am lucky, I will find "the perfect connectors" for the job.

CarloSW2