Electrical again, no one can figure out help!

I've got an 05' columbia with a BXS C-15 Cat 500HP 690K all factory settings with an 18spd. Last week while driving up the highway empty it suddenly lost power like it shut down, the fan clutch cycled and the engine came right back. This all happened very fast within a second or two. I drove the truck another 300 miles that day no issues. The next day I drive 60 miles to delivery it does it twice while sitting at the dock. I head back to the shop and does it again about a mile away from the shop. I take it to Caterpillar we rule out the battery box, and any cat wiring harness. Cat guy is stumped and with out the Freightliner wiring schematics it would be a waste of my time to stay. I go to freight liner thinking the ECM is losing power, they have had it two costly days now they say the ECM is not losing power, and the mechanic says everything checks out he's just as confused as everyone else. The truck has died on him two times and just "faded" once. Anyone have this issue with theirs? Any help would be greatly appreciated.

 

Been there, done that. Even replaced four of them.

 

We have checked the battery box several times, and everything is where is should be.

 

Found a 10 fuse with discolored prongs that powers the ECM. It was not blown, but hopefully it was failing causing the ECM to flash. We shale see...

 

Thanks, I'm at a dead end if this does not work. Wiring issues are like an open check book at a shop, makes my belly hurt! It's been running all morning with out a hick up so I don't know.