Had some intermittent issues with an 09 d8 last year with the guages going blank at times, mostly after a quick wot and completely letting off. I thought I had fixed the problem at the beginning of the year by kicking up the idle about 200 rpms. Last trip out guage was acting up, blank screen then resetting for the first ten miles of the ride, then has been blank ever since. Sled runs fine otherwise. Thought most likely a voltage reg problem, swapped with another unit, no change. Checked connections at the harnesses leading to the guages, and also under the clutch cover, no luck. Does anybody have a wiring diagram so that I can ck powers/grounds etc. before I take it in to the local dealer? Last time I took it in for the update flash It didn't get addressed. Also is there a way to flash or get codes off of these things without the digital wrench tool??