Which specific model? They all vary.
The 1997 Honda Civic Horn relay is found under the drive side dash panel. The relay is mounted next to the starter relay on the right side of the fuse box.
How do you repair 1999 Honda Civic Horn?
The 1991 Honda Accord horn relay switch can be found mounted to the radiator. The horn relay switch will be on the right hand side of the radiator housing.
The relay just plugs into the fuse/relay box, installing it means reading the owners manual to determine the correct location and plugging it in.
The horn relay on a 1994 Honda Del Sol is located in the engine compartment. It will be behind the fuse box.
The 1998 Honda horn relay switch can be found on the inside front quarter panel. The relay switch will be on the drivers side door panel.
On the Steering...
The horn relay in a 1995 Honda Accord is located in the interior of the car. Underneath the radio on the driver's side there should be a small rectangle with wires attached to it. The wires are white/yellow, blue/red, light green/blue, and black.
the a/c relay location in a 1996 Honda accord
Pull the fuse or the relay.
Two separate items there. There is a horn fuse and a horn relay. Location can be found in the owners manual.
There is no horn relay on a 1988 Honda CRX Si. The horn is wired to a negative terminal and sounds when the contact touch. There is no need for a relay using this type of set up.