Code -11

Hello to all
I have a 2002 GEM E825
I was redoing the body panels on it in camo
while I was doing this I disconected ALL batteries when I was done I re conected batteries and now the red light above the little rench is lite up and I have a -11 code on the speedo
what does this mean ? I have NO book on the car
Any and ALL help would help me out

Thank You