The other day I went to use my trx4220 fi and it would not shift. I had rode the quad 3 hours before and had been going through areas that had wet snow and 3-4 inches of water. Now when I go to use my quad sometimes it shifts and sometimes it doesn't, there doesn't seen to be a pattern of when it does and doesn't work, it is completely random. There is a code flashing which I believe to be 4 fast flashes followed by three slow flashes. Any help would be appreciated.