This read-only enumerated value reports the outcome of the most recently run Common Controller diagnostic test, as inprogress, success, failure, or invalidState. It tells an administrator whether the self-test invoked via hcxCcDiagTestAction actually passed, guiding the decision to return the card to service or replace it. For example, a result of failure after running the test would confirm to the technician that the CC card hardware itself is at fault.