I need help narrowing down the problem. Here is what happened. My wife's CRV needed a jump so we used my Son's 2008 Honda Fit to jump the car. When connecting to the Negative terminal of the Fit I noticed that the battery cable was loose. After starting my wife's car and getting home we tightened the negative battery cable. During the process of tightening the connector it slipped off which reset everything. After tightening we tried to start the car and nothing happened. Headlights are bright, all dash-lights work, power windows work. When the key is turned there is no crank, no click. The only sound I hear is a hum that lasts for 3-4 seconds and then stops.

Could it be a fuse? Not sure where to start. Did the jump screw something up? We also tried to jump start the Fit and still no crank, no click.