As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT ENROUTE TO PICK-UP PASSENGER RECEIVED "DPU FAIL" IN BOTH EADI/EHSI DISPLAY. PILOT DIVERTED TO KVJI AS PRECAUTION ACTION. AIRCRAFT LANDED WITHOUT ANY ISSUES. BASE MECHANIC REMOVED AND REPLACED COLLINS DPU-84 UNIT TO REPAIR THE ISSUE.