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Looking at the GM prints its a normally open contack that closes on temp rise.
it ohm out at 0.3 meg ohm. That is preety much an open circut and the ECM most likey sees faint voltage to tell if its hook up. On temp rise it closes to tell the ECM the system in working, So a 12 volt relay,hi value resitor should do the trick.
I want to see if it kicks a code out anyway.
What do I do for a living, Automation, PLC's and robots
What's the best solfware to get to look at and change the ECM ?
I want to get more into that
thanks for the help everybody
I'm using Tuner Pro RT and it works well. You'll need the burner, data logging cable, flash chip and chip adapter for your ECM. I added a ribbon cable with chip extender socket so I could remotely locate the chip. That makes things a lot easier when making multiple burns. All are available on Moates web site.