The OD light is off I should have pulled the complete valve body i guess when I saw that one in the accumulator I just got my hopes up. I can't read codes right now my scanner won't read diesels and my scan gauge is not working. Hope to get Auto Engenuity on the 15th. But to answer your question it has never flashed just that jumping speedo makes me wonder if that had something to do with it. Thanks for the re: I guess I'm not getting email alerts yet. Check user control panel maybe I didn't turn it on.