my cobolt has no power at the relay or fuse what could case this
what fuse and what relay ?
A break in the connection from the battery to the relay or a break in the battery to the ground could cause this.
some fuses and relays wont show power unless the ignition is on
Unless your Cobalt has only one relay and one fuse (highly unlikely… 
) you are going to have to provide a few molecules of information.