Hey Adam
I assume nothing and im not typing with any attitude or pissing contest and im happy you know more than one thing and probably more than me about locomotives.
i speak from experience when i say Lap top Trouble shooting and diagnostics is not all its cracked up to be.
In the End the human experience decides whats spurious and whats not.
If the locomotive throws a code awhile in operation, it uploads the problem back to the factory via satelite and all data from the prior 300 hours. Dying sensors can be diagnosed and flagged for replacement at the closest depot at end of the line.
The system is be evaluated for the Armys repair depot.
Old news
The aviation industry has been using ACARS since 89.
http://en.wikipedia.org/wiki/ACARS
Cheers and thanks for doing the job you do.
Jim