As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED PASSENGER DOOR CAS MESSAGE, SERVICE DOOR MESSAGE AND CARGO DOOR MESSAGE ALL CAME ON AT 15,000 FEET ON CLIMBOUT. CREW RETURNED TO FIELD AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED, RESET A POPPED CIRCUIT BREAKER AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUAL. AIRCRAFT RELEASED FOR SERVICE.