No spark
I've been putting together a troubleshooting guide specifically for this.
How Chrysler electronic ignitions work, and what to check if they don'
I see you have power at the coil positive terminal, that's a start. Can you run through the remaining voltage checks and let me know what you find?
This is pretty good, but a couple of suggestions
It might be helpful to explain that in when the key is in "start," the run circuit (IGN1) goes dead, and that the only ignition system source is the coil bypass circuit, normally brown, (IGN2).
It might help to explain than with the key in run, you expect LESS than full battery voltage at the coil, because the coil should be drawing current through the ballast, and dropping the full battery voltage. But in "start" the coil + should show whatever the cranking voltage is, and should be at least 10V or more
Maybe I missed it but another helpful test is the pickup "tap" test, where, with key in "run," you separate the pickup connector, and tap the bare terminal of the harness end to ground. This should generate a spark each time. If so, you may have distributor pickup problems, OR the connector itself can be faulty.