The horns themselves failed a lot in these cars. The horn is behind the right front headlight. You can get to the horn by pulling the headlamp lens out. Then check for power and ground there, and push the horn and listen for the relay to click also. But the horns themselves went bad a lot on these cars.
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.
check horn relay.
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
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.
Left front up under the bumper.
the horn is behind the w/w reservior! Remove the windshield washer reservior, diconnect the wire and remove the horn
Swap it with the one next to it of the same part number.
what do no bus mean
When your alarm system is malfunctioning the horn will be when the engine is off. You will need to reset your antitheft system.
Under the passenger side headlight assembly, you have to remove the entire assembly to get to it.