yelow (or orange) brakes light is blinking, at startup key, about
30seconds

¿do you know why?

¿low level fluid?  the bottle is over full at stop engine

¿exces level fluid? the bottle is mor than minimum and less taht
maximum

four ferodes is ok, not new, but ok

thanks in advance

sorry for my poor english, i can read it better that write
(i'm spanish)