You probably should have the dealer look at the bike. With all due respect it does not appear you are well versed with batteries and these new Can-bus bikes are a different animal. Could be as simple as a shorted out battery or something else. Better to have the dealer look at it so further damage does not occur. Good Luck!

 

And delete this thread to remove evidence.

 

I did the same thing to my bike (reversed polarity) horn blew.... what did the damage end up being???

 

I reversed polarity and the horn blew same as yours.... what was your outcome... what was damaged??