check horn relay.
If it's just the horn itself...$20 buck for the new horn. install it yourself with the Haynes repair manual, Dodge Neon 2000 thru 2003. Book #30036. The horn is under the passenger headlamp.
The 1999 Dodge Neon horn is located in the front of the engine compartment. The horn will be on the right hand side of the radiator.
it is behind the passenger side headlight assembly. you will have to remove the headlight assembly to replace it.
Haynes repair manual, Dodge Neon 2000 thru 2003. Book #30036 The horn module is located in the fuse box that is located on the left side of the engine compartment. The underside of the cover is marked so that it is easy to find.
Front bumper passenger side .Look up inside and it's located near headlamp
Under the hood in the fuse block
the horn relay for the 2002 Neon is located under the hood. It is inside of the relay box, the lid should tell you which relay is for the horn.
The switch and fuse housing in front of the battery
How do I disconnect the horn on my 2000 Dodge Stratus? Everytime I turn the wheel, as of last evening, it goes off!
the horn on your 2000 dodge is located on the passenger side of the car, behind the front bumper. you might have to remove the wheel well splash guard to get to it. it has a single bolt holding it to a bracket close to the back of the headlight casing. there should be a small wire harness that can be pulled off and pushed onto a new horn.
Left front up under the bumper.