Interior Lights on all the time

I too have a 1996 Grand Cherokee and the overhead lights will not turn off so I've removed the 40amp fuse in the fusebox but that's left me without the electronic display on the dash in front of the gear lever (not too important to me) and the turn indicators which is a heck important! My wife said she went over a bump and the overhead lights came on from the jolt. Does anyone have any idea about what's happened?