its in the fuse box under the dash, it controls the horn, the interior light and the glove compartment box. test them all to find it.
it in the fuse box
cavalier the older ones the fuse for the cigarette lighter is the same as the horn fuse.
Check the fuse?
the fuse
My horn unit was rusty and had to be replaced.
Make sure the 1989 Chevrolet Cavalier horn fuse is in working condition. Make sure the positive and ground wires on the horn are tight and free of corrosion.
under the hood in a fuse box. probably on left inner fender.
the relay or fuse is under the dash board in the drivers side. you will need a flash light but it should be marked on the fuse box. on some of the cavaliers it is not the relay but the positive connection to the horn it self could be coroding. use sandpaper and reconnect.
The horn is located behind the front bumper fascia
The horn is located behind the front bumper fascia
The horn is located behind the front bumper fascia
in the fuse panel drivers side behind the door marked HORN