I'm trying to fix my 93 civic horn and can't find a free manual to help. Any suggestions

Horn Test:

1. Remove front bumper.
2. Disconnect 2-P connector from horn.
3. Remove horn.
4. Test horn by connecting battery power to one terminal and grounding the other. The horn should sound.
5. Replace horn if it fails to sound.

Corossion on horn terminals and pin connector are likely the problem. Pretty straight-forward.