Weird thing happened on my Fender Precision (passive pups). It just died - when I tried plugging it in, there was no sound from my amp. Strangely enough, when I plug into my Boss Tuner pedal, it can read a signal and I can tune it (confirmed by ear). Is it possible for a pick-up to simply die without fading away? I haven't cracked it open yet but I would think that it wouldn't read on my tuner if there was a loose connection. Was thinking of upgrading to Nordstrand NP4 pups anyways but thought I'd bounce it off the board before taking action.