enigine codes any ideas

hey i jump in my mki and i look at the cluster and i have three codes first one is for the cooling fans it appears only one is running is this anything to be really concerned about can it go maybe a month or so before it is fixed?...the second is the ohh so famous e brake light how can i correct this problem hate to be a pain but i have no idea how to..and last is the charge light which im pretty much set on the fact that i need a new alternator considering when i take the neg terminal off while the car is running is dies on me any ideas for the other two codes brake and coooling fan??