As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS FLT 944 HNL-SNA - APU AUTO SHUT DOWN WITH OVER SPEED INDICATION. CREW RETURNED TO HNL WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND FCU CANNON PLUG PIN 1 TO 10 RESISTANCE MORE THAN 100K OHMS AND PIN 10 TO 12 UNDER 30 OHMS. REPLACED APU FUEL CONTROL UNIT PER AMM 49-31-11-000-801. FOUND OPS AND LEAK CHECK OKAY. AIRCRAFT RETURNED TO SERVICE.