[KensAuto]

Appears to be on the bottom of the injection pump:

 

[KensAuto]

That is good to know.

I wasn't sure if your truck had been modded or not, and almost posted up a tsb for 2015s (only) that have an issue with a harness rubbing the egr gasket, which will throw that code.....I bet it would be safe to bet that you probably don't have an egr anymore either. lol