Weird horn and hi-beams issue

[bhartwell59]

First off, I always drive with my headlights on.

However, after driving 45+ miles (doing 70) on a 95 degree, humid day I found that my horn did not work, and when pressed, the hi-beams would click on.

The next morning everything was back to normal... horn worked correctly and the hi-beams worked via the steering column stalk.

I believe it's the turn signal switch. The heat did something (heat expansion led to a short, etc).

I'm all ears tho!
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'74 Zambezi green Ghia vert, autostick, 101k
'87 Jeep Wrangler, 4.2, 330k