You have a Horn Relay in power distribution box.
Remove horn relay, connect jumper from terminal 85 to ground, connect one end of second jumper from terminal 86, connect one lead of a ohmmeter to terminal 30 and other lead of ohmmeter to terminal 87-should be resistance, now connect loose end of jumper from terminal 86to battery +, should now read zero ohms on meter...relay should also "click" oterwise it is bad.
Another thing that goes bad is the "horn blow switch", it usually reads like 5 ohms approx.
The horn relay is located in the fuse box of the 1996 Lumina. The fuse box is located under the hood of the car.
its in the engine compartment fuse box, unscrew the top, and on the inside of the fuse box is a diagram of which fuses are where. my horn fuse is in the top left.
on the drivers side, look where the pedals come into the car, that is where the location of the 1 fuse box is that has the horn fuse in it
Check the fuse!
under the hood
check you fuse and grounding on horn.
fuse gone: check fuse box, if not wire loose at horn, or at switch button
Check the horn fuse first, followed by the horn relay. If both of these are ok then the horn button or the horn are bad.
It could be the horn relay, a defective fuse or a shorted wiring. Need to check the wiring first, then the fuse and lastly the horn relay.
In the front fuse Box near the Air filter
1996 Pontiac sunfire horn fuseIt would be named cig and will be the color blue on the fuse box.
On a 1996 Dodge Caravan, the horn relay will be in one of two spots. It may be in the fuse panel located under the dash, or in the fuse block located under the hood.