fault codes for f50 2011?

[capitan fobias]

Hi everybodyˇ
I just got a f50. I´ve installated in my boat and when i started, the 6Y8 Tach showed a engine trouble warning with the 28 code. Someone has the fault codes list for the f50 2011? Also, the tach doesn´t show the right trim angle, always shows the maximum angle.

[boats.net]

Code 28 is incorrect neutral switch signal.
Check the "Trim Set" function in Tach to reset trim gauge.