Question about 1986 Chevrolet Corvette
1986 corvette horn not working. checked fuse, ok. checked relay, ok.put positive wire directly to each horn, work ok. checked horn pad, wire and pad is ok.
I have a 1999 corvette and the horn will not blow when pushing on the horn pad. It beeps when locking the car and security system.how do I locate the problem. Thanks Bob
Posted on May 13, 2013
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Posted on Jan 02, 2017
start at the horn to see if it the wire is connected, then i would remove that wire and use a jumper wire from a positive(battery) to the horn itself and see if you get any sound. If the horn beeps then the horn itself is not the issue. check your horn fuse and relay. if you are getting power at the fuse and relay it is somewhere in the steering column. possible the horn pad itself or the horn cam. If you have have this in for repairs in the past dealing with the steering column it might not have been hooked back up properly. but then again how often do you use your horn it might have been not working for quite awhile. hope this helps.
Posted on Feb 12, 2010
Diagram should be on the inside of the fuse box or relay cluster lid/cover. If Test light has 1 wire and a sharp tip? Yes, but only if you push the horn button too ;-)
My guess is that the horn lost its ground, but you can check this with the light. The horn only beeps when both GROUND and Pos 12v are present. The horn button gives the relay 12v to close, and the relay gives the horn 12v to operate. The ground is always connected.
Connect tester clipwire to 12v source (battery, headlight (has to be on) and touch its tip to metal of car. Does it light? Good. the tester is working and the 12v is a good source.
Touch one of the 2 horn connection or wires (poke it thru the plastic - why tip is sharp). Does it light? Touch the other, does it?
If both light, (1 will be brighter) we can assume the horn coil is good and it is getting a good ground and I was wrong (it happens... but not often). The side that is BRIGHTER is the ground wire side.
Now have someone mash the horn button. Do you hear a tiny click? That is the horn relay. If not, look for the horn relay fuse and replace it. If you DID hear the click, the relay coil is good and is trying to switch 12v to drive the horn.
Now is time to locate and replace the horn fuse or the relay may have bad contacts. Look at the other relay part numbers in the cluster and see if there is a match for the horn one. Swap it out and try the horn.
Hope this all helps. To 'test' the horn, touch the dim side again anf listen for a scratching sound. That is the 12v going thru the tiny bulb in the tester (a resistance) and trying to drive the horn.
Posted on Mar 27, 2009
SOURCE: No power for AC compressor
try removing the plug off the low pressure switch on the accumalator plug a paper clip into the plug and turn ac on if it comes on then your low pressure switch is bad or your low on refigerant.
Posted on May 28, 2009
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