Hi,
I plugged in my Nanocom a couple of weeks ago and while diagnosing the becm I heard a series of fast relay clicks from the odometer and from unter the right seat, for a few seconds But nothing else. One click is normal when starting and ending the diagnose with the becm, but this was a lot more.
Then one morning my usually german display said "Market not set" and was back to english. Also the becm settings were resetted. Changed that back to german with the nano and has stayed like that since.
What could that mean....?? Power loss at the becm ? Ground ? But doesn´t the becm save its settings when there is no power...??
greetings,
Max.
Link Photo
(Just posted the Photo to try out the new Picture hosting method via ImgBB - is it also possible to see the pic directly in the post or as thumbnail?)

That's an odd one, never seen that before, as you say, the BeCM retains its settings when teh battery is disconnected. The only possibility I can think is you had an iffy connection at the OBD port which might explain the rapid relay operation as it connected then reconnected.

If you want the picture to appear in the post, click on the Image icon at the top of the box you are typing in (the one that looks like a picture frame) and a box will pop up asking for the picture hyperlink, paste the photo link in that box (making sure the https/:: already in the box is overwritten) and it will appear in the post. Like this.....

I keep the Nanocom plugged in all the time since I blew up my old one connecting it the wrong way too many times. But I also have an extension cable on it now so I could unplug it at the connection, not having to crawl into the footwell every time. Maybe that extension cable is also not quite up to par....

Thanks for the advice about posting pictures !

Not sure what current the Nanocom draws in the standby state, but would be worth checking.

I would suspect intermittent power of ground to the BECM is your likely cause ? Remember power needs both 12V & Ground for any current to flow.