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Re: I have a 1985 corvette that the horn has no power to...
There is an inline fuse,and relay for the horn behind the center instrument panel.If the fuse is good then follow the dark green wire from the relay to the horns.You can ohm the wire to see if there is an open circuit from the relay to the horns.Hope this helps.Good luck.
Have you tried replacing the horns themselves? Have you checked all the fuses relating to the horns? Relay? Maybe its the horn button itself? Hope this helps.
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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
The horn gets it's power from the horn fuse which is live all the time.Power goes from it to the switch and then out of the switch to the horn.Test the wire to the horn with a test light or a multi-meter and if there is no power you likely need the horn button replaced,if there is power you may need to remove the horns and clean the rust from their mounting points to get a better ground or turn the adjusting bolt on the horn until it will blow,if neither of these work you will need to buy a new horn.
Have you tried replacing the horns themselves? Have you checked all the fuses relating to the horns? Relay? Maybe its the horn button itself? Hope this helps.
Probably the switch in the steering wheel, or fuse, but usually horn fuse works other things too such as cig lighter or radio. If everything else is working fine, then to troubleshoot you'll need a testlight. I would start with the wiring harness where the steering collumn plugs in and decipher which wire is the horn wire. Put the test light clip on +power, then check the wires on the collumn side one by one, pushing the horn button on each one. The horn switch is the wire that makes the light blink when you push the button. If you try all the wires and none make the light blink, then its probably a problem with the horn switch in the s. wheel. Does it have an after market steering wheel? Because aftermarket wheels often have crappy horn switches in them. Also could be a horn relay if it has one. If you listen carfully while pushing the horn, you should hear the relay faint clicking. If you hear this, then the switch is working, but the relay might not be. Follow the sound to find it if you hear it. Test all sides of the relay with your light. Should get power constant on one term, and the other two should light when the horn button is pushed. Hope this helps. Cheers.
There's probably a relay that may control the fuel pump and the rst of the fuel system. I'd go to the local auto parts store and purchase a service manual, i believe it's only about twenty dollars. Good luck.
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