Yeah, I'm with you. I'd be a bit surprised if Crown couldn't make a simple pin switch. Seems like it would be easy to test on a bench as well.
I'm actually surprised by this as well.
I understand the more sophisticated sensors such as the Camshaft Position Sensor for instance, but I believe this transfer case switch is vacuum (or fluid?) operated. In which case, it would seem pretty hard to mess that up... but I suppose I wouldn't put it past Crown.
Does anyone know for certain how that switch is actuated? Is it vacuum or fluid?