The horn on my '90 240 wagon has quit. (It did this once before and recovered on its own.) If I ground the black wire at the horn, the horn works. So, I think the problem is the horn switch. The problem is that the car has airbags. My Haynes book shows what to do only for models without airbags. I have seen some earlier postings on this. Am I going to have to remove the airbag? Any way to try to repair the switch without doign that?
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