2006 Saturn Ion horn want blow

The horn fuse should be in the under hood fuse box drivers side.Do you have a multi meter to do some testing?

yes i have a multi meter.

Check the fuse first then under the left head light find the horn.The black wire at the horn should be a constant ground.The dark green wire should have power when pressing the horn.

I check the fuse it is good and i check for power on the dark green wire when pressing the horn there is no power, what i check next.

Did you have a good ground on the black wire?

I don't know, what i did do i took a test light and connect one end to the dark green wire and the other end to a bolt and press the horn.

Now hook up the alligator clip from the test light to the positive battery post at the under hood fuse box.Then touch the test light the black ground wire at the horn did the test light light up?

I hook the alligator clip from the test light to the positive battery post at the under hood fuse box and then touch the test light the black ground wire at the horn and the test light did light up. so what i do next.

Is there power to both sides of the horn fuse?Also look at the top of the horn relay you will see terminal diagram on it.Remove the relay from the fuse box and match the terminals to the fuse box.Now on the fuse box where the relay went in terminal N5 should have a ground when pressing the horn button.M7 should have power and terminal N7 should have power.