As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEG FLIGHT 2347 ON CLIMB-OUT AIRCRAFT WOULD NOT PRESSURIZE IN AUTO OR MANUAL MODE. DIVERTED TO GEG FOR MAINTENANCE. MAINTENANCE INTEROGATED CDS NOTED CP CONTROLLER FAIL AND CPC/ADU ARINC FAIL. REPLACED CPC. GROUND RUN OPS CHECKS GOOD, AIRCRAFT RETURNED TO SERVICE.