I was just getting ready to reply to your last post and I saw you snuck another post in.
There are a lot of tests for the "Electronic Control Unit "that start on page 3-7 of the ZN Manual.
The air temperature sensor test is on page 3-15.
One thing I advise members to do frequently when they have trouble with electrical issues is to copy the wiring diagram pages from the electronic manual onto a thumb drive, then take the thumb drive to your local print shop and have them blow up the pages to a 11" x 17" format, print off the pages and then have them laminate the pages. That way you can see the diagrams easier and if you want, you can mark up the diagrams with a dry erase marker as you work through your tests and after finishing your work, just wipe off the drawings for the next time.
