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Horn will not work

Tiny
ANONYMOUS
  • MEMBER
  • 2005 NISSAN SENTRA
  • 52,000 MILES
One night I slammed on the horn button to avoid an accident, since then the horn will not work.
Tuesday, December 25th, 2012 AT 12:31 AM

15 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The horn pad may be damaged. It most likely needs to be replaced.

It may be part of the air bag. Call the dealer and ask them if it can be purchased separately

Roy
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Tuesday, December 25th, 2012 AT 12:44 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Check the fuse and horn first.
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Tuesday, December 25th, 2012 AT 2:08 AM
Tiny
MICHAELKSMITH1970
  • MEMBER
  • 2 POSTS
  • 2002 NISSAN SENTRA
  • 1.8L
  • 4 CYL
  • AUTOMATIC
  • 120,000 MILES
Horn does not work. Twelve volt system with good battery. When ignition is on there is only 6.8 volts and one and five on the horn relay. Have no idea why.
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Monday, May 11th, 2020 AT 11:47 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,722 POSTS
Hello,

Here is a wiring diagram (below) for the horn and a couple of guides to help you do some testing. Unplug the horns while testing it sounds like it might be shorted out.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please let us know what happens, we are interested to see what it is.

Cheers, Ken
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Monday, May 11th, 2020 AT 11:47 AM (Merged)
Tiny
MICHAELKSMITH1970
  • MEMBER
  • 2 POSTS
This doesnt help. I am a mechanic and an electrician so I know how to troubleshoot and have already taken those steps. What I need help understanding is why the relay block is only receiving 6 volts when there is NO short in the system.
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Monday, May 11th, 2020 AT 11:47 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,722 POSTS
How many volts does the battery have? There is a main feed into the fuse block if you have 12 volts there then the fuse block is bad and needs replacement or repair. I would check the power coming off of the ignition switch and accessory relay as well.

Here are more wiring diagrams (below)

Please let us know what happens.
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Monday, May 11th, 2020 AT 11:47 AM (Merged)
Tiny
ZELLDOG93
  • MEMBER
  • 111 POSTS
  • 2002 NISSAN SENTRA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 100,600 MILES
Why wont my horn work in my 2002 nissan sentra gxe? I have replaced the relay the horn its self and the fuse that is meant for the horn.
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Monday, May 11th, 2020 AT 11:47 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Sounds like you need to open it up and check the horn button switch
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Monday, May 11th, 2020 AT 11:47 AM (Merged)
Tiny
ZELLDOG93
  • MEMBER
  • 111 POSTS
So you mean that I have to take apart my steering wheel? I havent done that yet would you be able to explain how to do it safely? Or send me a link that explains?
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Monday, May 11th, 2020 AT 11:47 AM (Merged)
Tiny
NONDRIVER
  • MEMBER
  • 1 POST
  • 2000 NISSAN SENTRA
Engine light stays on and horn doesn't work. If it is a fuse how do I know which fuse goes to what?
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Monday, May 11th, 2020 AT 11:47 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,772 POSTS
The owner's manual should show which fuse is for the horn. However, that has nothing to do with the check engine light. You need to have the computer scanned to determine what trouble code/s are stored in the car's computer. Most parts stores will do it for free.
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Monday, May 11th, 2020 AT 11:47 AM (Merged)
Tiny
88COOLJ
  • MEMBER
  • 6 POSTS
  • 2000 NISSAN SENTRA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 164,000 MILES
The horn does not work. I have checked all the fuses and all ok. I have check the horn itself it works. Is there any other fuses or relays under the hood that I can check or replace.
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Monday, May 11th, 2020 AT 11:47 AM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Check horn relay, it is located on the fuse block (behind left side of dash)..


https://www.2carpros.com/forum/automotive_pictures/261618_Graphic_269.jpg

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Monday, May 11th, 2020 AT 11:47 AM (Merged)
Tiny
LAB
  • MEMBER
  • 1 POST
  • 1997 NISSAN SENTRA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 53,000 MILES
Suddently the horn on this car is not working. As you can see with the mileage it has not been driven much because it is owned by a senior citizen who rarely drives.

Can you advise on repair, can we do this ourselves for her? Thanks
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Monday, May 11th, 2020 AT 11:47 AM (Merged)
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
B14 Sentra horn has a tendency to just quit working. I advise that you replace it with an aftermarket one from any auto parts store. Should cost around $15.
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Monday, May 11th, 2020 AT 11:47 AM (Merged)

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