07hch fuse #1 blown
 

Hello, used 07 civic hybrid, quit running, someone else found that the #1 fuse (100/70amp) in upper rt engine comp blew. found that if the cable on the front left of the fuse box was disconnected from the #1 fuse, the car would run a little. I am trying to trouble shoot this car for my Grandson. Can anyone please help me figure what this cable connects to.
If I try to hook the cable up it starts to short out the #1 fuse