I don’t have an f14, but had a similar issue with my SOF.

My first guess would be it’s one of the solenoids that kicks out during the MB (F14 has like three diff ones doesn’t it?)

Check the schematic, see what solenoids or flashers are on that fuse. Get a multimeter, measure the resistances of those solenoids and bulbs, you’ll probably find one that’s too low or not continuous (manual should include what values should be), if so, replace it.

Are you using incandescent GI and insert bulbs? What about the flashers? My sys 11 was resetting during the light show jackpot freak out until I swapped out the GI and inserts for LEDs. Kept the incandescent flashers tho because I think Sys11s require modification for LED flashers. If you’re feeling lost I’d try to find someone in your area who knows system 11s and ply them with booze; I’m sure there are plenty of techs in Seattle area who can help you.

Yes, you are certainly correct on that, but in my case it solved a problem I think was related to an aftermarket power board (but who knows? All stuff currently checks out with DMM fingers crossed).