Horn not working need locate the fuse box

USA SPEC CAR ? (MEANS SOLD THERE FIRST) OR VIN TELLS THIS.
I read the SM, service manual to you, horn schematics.
on 2009 cars, best is check all fuse just in case network errors are cause.
ok no BCM here.
so yes the relay clicks , and closes and honks the horn
shows 2 horns but using ground a23 and a24, got rust there>?
the fuse drives a fuse called HORN
10amp
if you do a 2 mean test, and gay1 honks, and guy2 listens to horn really and you hear it click , that tells you 2 things, horn button good
and CLOCK spring, horn pin not broken
and like magic if it did click, now you found it using EARS.

the book says
engine room R/B and J/B (horn relay)
engine bay fuse box has the relays. not cab.
again USA car left hand drive, not UK or other RHD cars.world wide

Both the Horn fuse and Relay are located in the Engine Bay fuse box,check the underside of the fuse box cover for the exact fuse number and the location of the relay

There is a wire somewhere between the fuse box and the horn that is touching metal and grounding out the circut.Follow the wires from the horn to the fuse box carefully you should find your problem.

The Fuse Box Location IS On the driver side close to the floor all the way to the left.

horn fuse should be under the dash. you may also want to check relays under the hood. They are in a block box labeled relays. Check under the dash first. There should be a diagram for the fuses in the owners manual or located near the fuse panel. The fuse block should be up above the brake

Your truck has 2 fuse centers, the horn fuse is located under the hood in the fuse/relay box on the drivers side just next to the brake booster/master cylinder. The Horn fuse is marked #10 in the box and is a 15 AMP blue fuse. This fuse supplies power to the horn relay which is marked #7 in the same box. If you do not hear this relay click and the fuse is ok then you have either a burned out horn or a defective rotating contact under the steering wheel that connects the horn button to the circuit, it is called the "Clock-spring" contact.

The horn relay is located in the power distribution box under the hood. Also, fuse cavity 21 and 4 are fused to the horn circuit as well as the clockspring mechanism in the steering wheel. Best case scenario would be a defective horn or blown fuse in the horn circuit, worst case scenario would be the clockspring in the steering well is defective and will need to be replaced. Before replacing any parts, check the connections first.

open the hood and locate the horn.., it will have 2 wires connected.., disconnect any one of them and horn will stop working.... this is just a work around.., u can also locate the fuse box and remove the fuse for the horn., and that will do.

The horn is located in the front bump on the drivers side. You'll need the remove the side cap to access the horn itself. As for the fuse, check under your dash on the drivers side. You will see the fuse box. Printed in white type up-bove each slot, should indicate which one the fuse watches, there should be one for horn. If you can't find it, then one by one remove the fuses and check to see if any have blown.

There are two fuse boxes on this car.
The first is located inside the car, it is in a pocket compartment located near to the driver side door.
The other one is under the hood on the driver's side, it is a black box with a removable cover.