A loose wire would cause the horn to stop working on your Dodge Avenger 2.4L engine.
what can cause my speed odometer to stop working, it would work awhile, than stop, now not at all
what would cause my navigation system to quit
what can cause the interior fan to stop waorking in a car is it stop working when your fuse blew
issue with common ground.
The normal cause is a blown fuse.
Check fuses
failed backlight is most common.
Faulty light bulbs, damaged engine.
It could be that the window motor has stopped working.
Need to know what it is not doing, post more info.
A loose wire or a blown fuse would.