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- Disconnect the two wire connectors from the horn.
- Connect a test lamp across these two wires.
- Switch on the ignition, and press the horn button.
- If the lamp glows while pressing the horn button, replace the horn.
If the lamp does not glow:
- Check the fuse.
- Wiring.
- Steering wheel assembly.
First go to horn, its in the right side (passenger side) very front behind bumper. Turn wheel to the right, remove inner fender well, locate horn. Check to see if you have 12V there when the horn is activated to ensure its not just a horn. If there is 12V and ground and horn doesn't sound, you'll need a new horn. If voltage is good then back track to the horn relay, it should be under the hood electrical center (some earlier models were under the dash below steering wheel. If you press on the horn in the steering wheel, you should hear it click to locate. If not check the black wire going up the steering column, when jumpered to ground and horn sounds then the problem is inside the steering wheel, horn ring or contacts on the pad are faulty.
This problem is caused by the rotating ribbon circuit contact under the steering wheel having a broken filament, the part is known as a clock spring contact, u will need to properly disarm the airbag and remove the steering wheel to access the part. WARNING: Failure to disarm the airbag system can result in an unexpected Airbag deployment and possible serious personnel injury disconnect the battery 30 minutes prior to start of work.
first off the center cover needs to be removed from the steerin wheel. some can be pulled off and some have screws on the back side you remove then the cover will come off. once you determine that be careful the covers have control wires that are attached to it that go into the column. gently push in on the connector and turn counter clock wise and the wire will come out with the cover.you can usually rent a steerin whell puller from your local parts store and and use it to remove the steerin wheel after you have removed the nut holdin the steerin wheel on. if you dont have the puller, you can back the nut off to where its flush with the steerin shaft, then turn counter clock wise approximately another quarter turn and take a hammer and strike the nut and this usually breaks the steering wheel lose from the shaft. let me know.
does your horn work when you press on the horn on the steering wheel?if not your horn is bad,,,does your remote still lock the doors?if so you dont need a battery,one battery does it all,,
I would think that the problem is more likely to be on the hot side of the horn operation, than on the earthing.....Power is fed to the horn and is grounded, completing the circuit, when you press the button....Check first on the horn relay and follow it from there.....I don't believe the problem will be behind the steering wheel, unless the horn sounds all the time....
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