I have a stock M100 with all cables and a cradle. I use a cable that has 9 pin on one end and our harness plug PLUGS INTO IT and then into the car and have 3 of these cables I have tried so its not that cable for sure. Its wired to pins 1, 12 and looped back from 12 to 10. When I volt meter test I use pins 1 and 12 and get a code every time as the CEL will come on when the car cuts out code 14. My ECU had no leaking Caps but I replaced them anyway. I made friends with a local electrician supply store down the street from my work and they have taught me so much about soldering and circuit testing and much more. I bought all types of soldering stuff and I re-soldered everything on my ECU and they and I both tested everything on that board and it is perfect. So I am 100% sure its not the ECU. Its my Palm or the Palm cable but I took the cradle out there to the garage and still no response no datalogger. Like I SAID It SUCKS!the logging cable does not plug right into the palm, it plugs into a 'serial sync cable'
what kind of serial sync cable do you have? The 2-headed ones never worked for me (the ones that are both serial and usb)