Found this:
Attachment 85175
Wow, I just got a reminder of why it is so painful to use this forum. Took me about 10x longer to make that image (probably unreadable by now) uploadable to the site, vs. to find it on the google machine.
The original URL is at
https://www.flexihub.com/oobd2-pinout/
That is a great feature of the Foxwell NT710.
I have the Foxwell NT520Pro, and have a related story of the OBD2 port going kind of dead for a couple of years ...
I used to use the Foxwell and the INPA (I think) regularly with no problems, got the car perfect. Then did not use either for a while and coming back, the INPA was completely non-functional. The Foxwell kind of worked: would not auto-read the VIN, and would read about half of the modules when doing an auto scan. For the things it could read, it seemed perfectly functional. I read the forum, trouble-shooted, checked connectors, pins, soldered the INPA connector, loaded to a new laptop, etc., and then gave up.
Car ran perfectly during all this.
Couple of years later, my daughter was driving the car down in SoCal and called me to let me know she had just hit a huge pothole that slammed the car and made every light in the instrument panel come on and it looked like a Christmas tree. She had the Foxwell in the car, plugged it in, did a quick erase, and everything went away ... AND THE OBD2 PROBLEM WAS NOW FIXED.
Not the greatest repair method, but maybe it will help those who troubleshoot the hell out of their system know that it just might be near-impossible short of a pothole to fix it.