usually the last active code shows up on the display.
the only reason to look in the service menu is to pull a history out of the error log.
a serial number from the truck will go a long way in helping diagnose this problem.
But first thing i would check are the fuses and wiring associated with the injector.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.