My horn is not working ,and I want to check the fuse, please tell me where it is located

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

Fuse box

fuse for horn on a 2001 malibu is located under the hood.
there is a fuse (15 amp) in slot #43
and there is a relay in slot #21
if you remove the relay and put it back in wrong the horn will not work.

this really depends what car it is but the horn is usualy mounted behind the front bumper area, please check the fuse i n the fuse box.. if the horn is good and the fuse is as well then check the horn push

as with all elect. fails check all fuses
in this case the 15 amp fuse marked, HORN
can i presume all else works good> car drives.?
all answers, USA spec car. nobody ever tells location, so..... if not USA< all answers wrong. the usa car has just 1 horn.....
got voltage to horn? 12v
Yes or no.?
if yes horn bad.
got voltage from horn relay
yes, bad wires.from, relay to horn
no, got voltage 12v to horn relay coil,
yes, good, no bad fuse.
got 0v to other relay coil (all tests honking)
yes, bad relay.
no, bad horns switch.

if you want me to guess. sure.
1: bad wires ../connections, end to end.
2 bad horn
3: bad relay
4: bad horn switch.

Open the hood. Find the horn. Put one hand on the horn.
Have someone else blow the horn. If you DO NOT feel a click or hum then no power is getting to the horn. Get the owners manual out and find the fuse for the horn. Check or replace that fuse. See if the horn works. If not working go to auto parts store and ask them to look up horn relay for your car. Ask them to show you where the relay is located. See if you can replace that relay yourself. good luck

Its usually in the front of the vehicle,mounted off the frame or grill on the passenger side.

check the horn relay # 25 ; located underhood in the fuse and relay box.

it may be your clock spring. if your fuses aren't blown try the clock spring. you can get the directions online and buy the part from the dealership. it takes maybe thirty minutes but saves you lots of money. another easy way to tell if it is the clock spring.....does your cruise control work? if not the clock spring is bad.

WHAT I WOULD DO IS PUT 12 VOLTS TO THE HORN WIH A BATTERY CHARGER AND SEE IF THE HORN ITSEF IS BAD. IF IT WORKS I WOULD CHECK THE FUSES THERE ISNT A RELAY BUT THERE IS FUSES YOU SOULD BE ABLE TO LOCATE THE HORN FUSE IN YOUR OWNERS MANUAL IF NOT CHECK EVERY FUSE