Hi,
I have a module with several FC343, described as "Engine Control Module Warning internal hardware failure - Bad intelligent device or component", I've looking for more information without success. Anybody has experience with this kind of fault, I found it's common in Celect, and CM570.
Test in bech seems to be fine for sensors and actuators and no fault in the bench but in the truck is active after a few minutes. The fault is not active with other ECM.
Thanks