[JP Noonan]

In my 914 with a 901 it did the same thing, I bought a new pin and fixed it. I think the pin was $5 from Pelican. I'm guessing the pin wears down with age? Or when your tranny was serviced the shims were changed and the old pin can't mate with whatever it is that activates it. So if you don't get continuity with the switch on the trans I'd say put in a new pin.

I also wouldn't rule out that the switch circuit isn't connected to the ground plane, I was chasing down rear turn signal problems for months. turned out to be a bad ground in the FRONT turn signal houseing. My starter circuit was completely dead when the engine was hot, turned out to be the 14 pin connection on the relay panel was dirty/corroded.

And make sure the wires go through a grommet in the tinware, and didn't get caught between the tin and the body.