As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRESSURIZATION AUTO FAIL LIGHT ILLUMINATED DURING LANDING. SWITCHED TO ALTERNATE MODE. ACFT GROUNDED. PERFORMED BITE TEST ON DFCPC. TEST PASSED. NO FAULTS. SWITCHED TO MANUAL AND BACK TO AUTO AND AUTO FAIL LIGHT GOES OUT. NO HISTORY 30 DAYS.