2013 DEF problems?

[Kimon]

Last year the boss bought two '13 Dodge cab and chassis trucks.  I ended up with one of them and the boss has the other.  My truck has been trouble free so far, but his has been to the dealership twice so far for def problems.  Both times it has been due to the wiring harness being ripped out,  https://speedtest.vet/ https://vidmate.bid/ if you see the country we drive in you would understand.  Is there any fix to the def problem on a 2013 truck?  They are both stock, base models, 4X4, manual trans, even hand crank windows.  He will not want to add power, he just wants to not go into limp mode 100 miles from town.  Other than stop being so abusive to the truck, any advice.  Thank you.

Edited April 27, 2020 by Kimon

[Me78569]

Are you able to see wires when you get under the truck and look up?   

 

i'd be putting some sort of skid plate in place.