Not to denegrate Brian K's fine work as i was not aware he was doing them, so i recently had MITA of Japan rebuild my unit. It is done by Honda techs and they have a test module to test every function. This "tester" was a Honda tool part at one time so perhaps Brian has one or made his own. Mita turned it around in about a week. Nothing was wrong with my cluster by the way, i had a non-cluster wiring issue.