As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJC - FLIGHT 2502, UNABLE TO PRESSURIZE CABIN IN AUTO OR MANUAL MODE AFTER DEPARTURE FROM SJC. DIVERTED TO SMF AND ACCOMPLISHED A UNEVENTFUL LANDING. MAINTENANCE FOUND THE AFT CARGO DOOR NOT CLOSED PROPERLY. CHECKED THE DOOR, NO DEFECTS FOUND. DOOR OPERATES NORMALLY. OPERATIONAL CHECK OF PRESSURIZATION GOOD. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.