Comprehensive Diagnostics Mode Explanation?

Hey folks, great website! I have scoured the internet and cannot find a comprehensive explanation of EACH of the items found in Diagnostic Mode on the iPod Classics, Model A1238.

Most people seem to pay attention to the hard drive reallocations and pending reallocations and that is great but what about everything else in Diagnostic Mode that isn't as obvious as clickwheel or headphone detect?

Is there a complete line by line list of everything in Diagonstic Mode and how to interpret them somewhere?

Thanks!