As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - INFLIGHT NRT-DFW. CREW REPORTED MESSAGES FOR LEFT HIGH PRESSURE SHUT-OFF VALVE AND RIGHT PACK ILLUMINATED ON EICAS. IN ADDITION THE CABIN PRESS CONTROL LIGHT ILLUMINATED. FLIGHT DIVERTED LAX LANDED WITHOUT INCIDENT. REPLACED AIR SUPPLY CABIN PRESSURE CONTROLLER. SYSTEM, GROUND CHECK NORMAL OPERATION.