Most probably an error message. Resolder the CCM, mainly R60, R61 and R62.
Here is a German instruction with 16 pages. Do not worry about the language, the pics say it all. Bad solderings are the issue. The items mentioned before are clearly marked in the pics.
http://www.e34-welt.de/tips_tricks/R...0e34%20e32.pdf
Good Luck