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It may be helpful to know that my '94 Buick Lesabre(& other GM vehicles) horn will honk on its own... Started on fridgid nights (0-10 degrees F. last winter. Now , (Nov.'05) it is doing it on nights when temp is only in 40's F.
In all cases, Tapping the horn button (pad) stops it; but it recurs within hours. I've removed the large (60 amp fuse) under hood, on firewall behind Power Steering pump , under a long plastic cover shield. But that also disables signals & power locks, so it is a temp fix (to get some sleep)
Explanations I've seen on some forums is that temp variations are distorting the horn pad and making the contacts connect. That probably is true, since I do have very sensitive horn switch pad.
I'd like to know a more convenient work-around, if possible. Cheers, & Thanks in advance.
Electric connectors are known for sometimes expanding and contracting. Your problem sure sounds like it is behind the steering wheel horn pad. For an emergency you could disconnect your current horn switch and make an external horn switch until you fix it.
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