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post #2 of (permalink) Old 07-06-2009, 12:00 AM
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Join Date: Sep 1999
Location: Pottstown, PA
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There should be a relay in the PDC (the little black box under the hood). If you're lucky, it's just corroded a path to energize itself. Pull it and look. Swap it will another (there should be a few identical to it) and see if the condition disappears with the horn ..and emerges somewhere else.

If you're not that lucky, then it's a hunting mission. I'd be suspecting that water got into the horn switch with some dirt and is bridging out the contacts in the steering wheel. That's a bit more complicated with the air bag and clock spring. I've never had it off, personally.

I'd probably be playing like a chimp with a whiffle ball bat to avoid taking it apart (leaving the wheel inverted or other various angles - disconnecting the battery and spraying plastic safe volatiles in there - banging the horn area of the wheel ..etc..etc) ..but I'm lazy

Gary L. Allan, Sr.
Pottstown, PA

If it ain't broke ..fix it 'til it is
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