3 DTCs with no check engine light!

[Shane150]

I was calibrating my speedometer through Forscan when I noticed I have 3 DTCs! I have no check engine light and truck seems to be running fine! P2601, U0422 and U0565. I want to have as much knowledge as possible before taking it to the dealership. I reset all of them but they keep coming back.

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[fordtruckman2003]

It's history data on the coolant one not something active that you can reset. Unless CEL comes on I wouldn't worry about it. Will probably fall off eventually if the issue doesn't return.

Communication issues are common on these trucks at random. If everything seems to be working correctly I wouldn't worry about those either. Lots of examples on this when Rugedraw is looking up VIN numbers in the VIN thread.