Shutdowns due to 'crankcase sensor too high'

top one is oil psi, bottom is crankcase. with twist lock connectors, you should not be able to turn them clockwise if they're all the way fastened.

although, you say the gauge is reading zero with engine running and you have no fault codes? may need to do a gauge test.

 

Where is that J1939 link located? High crankcase pressure fault came with a bunch other codes associated with J1939 link communication

 

Do you know what is the part number for 2001 ved12 oil pressure sensor? Thanks

 

What year is the truck?
Can be the instrument cluster