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Fuses and relays are two completely different things. Relays don't normally have a fuse built into them. Is this the horn fuse or the horn relay your referring to?
If it is the Relay, (a Small, square, black plastic block), take it to a good auto parts store and they be able to give you the correct one. The car will run normally without it.
If it is the fuse, ( a flat, coloured piece of Plastic with two metal 'ears'), they are usually marked with the amp rating as a number and the letter A. They are also usually colour coded having certain Amp ratings as certain colour. It is often a 15A fuse, possibly a blue one.
Fuse # 27 15 amp. under hood fuse box. If the fuse isn't blown check the horn relay , located in the same under hood fuse box . Relay is J center top . Do you know what a relay is and how it works ? VEHICLE RELAYS Operation Diagnosis
The horn system consists of a single horn, a horn relay located in the underhood fuse block, and driver controlled horn switch in the steering wheel. The horn system is designed to provide the driver with an audible warning to signal pedestrians, other drivers, etc.
Operation
Voltage is supplied to the horn relay coil and contacts at all times through a 10 amp HORN fuse, located in the underhood fuse block. When the driver pushes the horn pad, driver air bag module, the circuit completes and energizes the horn relay coil. This causes the horn relay contact to close. When the contact closes, current travels to the horn and the horn emits an audible warning.
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.
Check to make sure that horn is connected at the steering wheel. Remove the portion of the wheel that you push to activate the horn and reconnect the wire. If that doesn't work check connections at the horn(s).
The horn fuse is a blue 15 amp fuse under the hood near the battery.
It is the first fuse next to the two 80 amp main fuses. The horn relay is also in this area. It is the small black relay between blue and brown relays.
Start by having someone press the horn while you feel the relay with your finger. If the relay clicks when the horn is pressed then the switch is working properly and your problem is between the relay and horn assembly.
This wold indicate that you have a shorted horn circuit. Generally, the horn circuit has a negative contact at the steering wheel, meaning when you push the button, it grounds (-) the sysem causing the relay out in the engine compartment area to provide 12V (+) directly to the horn. If nothing else causes the fuse to blow, the pwr window/sunroof., then either the relay itself is shorting out or a wire to the horn is grounding, or you have a bad horn. (spend a few fuses & save time, unplug the relay, replace the fuse & press the horn button & see if the fuse blows. Next, plug in the relay & do the same for the horn)
Generally it won't be the wire from the horn button or the horn would be working continually. Your owners manual should tell you where the relay is & you could see if you notice any unusual appearance to the case, as well as following the wiring from there to the horn, to see if any damage is apparent. IE: if the horn is located in the front grill area or near a opening in the fenderwell, does it appear a rock or something has hit it or any wiring causing damage. With a vehicle as new as yours, if it isn't obvious damage, I would suspect the relay. good luck
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