Quote:
Originally Posted by FoundedSine14
Have you checked the grounds? Use a multimeter to verify continuity from this part of the horn to the frame
![](https://i.imgur.com/M3CXlpE.png)
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YES. I had a no horn work problem on my Matrix, pulled the ground fastener and it was corroded, but looked ok, replaced it with a fresh fastener and bingo, horn worked.