I've seen posts where folks discovered their CEL bulb was missing. Seriously! Appeared the previous owner would remove it to hide the fact that the CEL was on. Yeah, I know, shady. If I remember right, a missing bulb produces a DTC. I wonder if a burned out bulb will also produce a DTC? You should check for codes to be sure.
Also, many threads on this forum about the horn honking over bumps. Can't remember the exact nature of the problem, but remember a few o-rings fixed the problem. Or even a replacement of the airbag or steering wheel mount, I think? I really can't recall right now. Give the ole' search function a try and you'll find your answers.
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