First Cheack the fuses!!! located under the dash board and check the fuse for the HORN.
http://wiki.answers.com/Q/You_cut_the_horn_on_your_2000_honda_civic_how_do_you_fix_it"
To fix a ratio on a 2000 Honda Civic transmission, follow the procedure stipulated in the users manual.
The only thing you can do to them is change them.
To fix the radio on a Honda Civic it would be best to take the vehicle to a mechanic or someone with experience in fixing this type of radio if the owner does not have the experience. This will insure that the radio will get fixed correctly as it is a rather difficult task.
You will need to change the brakes and rotors on the Honda Civic to see if that fixes them. If not, take the car to a mechanic and have them fix the problem.
2004 Honda civic not giving good gas mpg
new gaS CAP
If all connections to the horn are fine and the fuse in okay, then you might want to check the horn relay or the actual switch at the steering wheel.AnswerYou will have to check the horn unit to determine if it is broken. This can be done by cutting apart the wiring harness, and connecting wires from your horn to your battery. If it doesn't make noise, your horn is shot. You'll have to take the bumper off the car to get at the horn, another testament of great engineering on the part of Honda :)
You don't fix it, you just replace it. After replacing it get an alinement.
How do you fix trouble code po1362 and the Honda odssey 2000
Replace the fuse.
i think there's a recall