Reads a bit under 12v running.
don't think the batt is fried.
* It takes and holds a charge just fine with a charger
* truck cranks right up, something it would not do on a weak batt, not to mention a dead one
* I've driven a few miles on just batt power

I'll try the pos cable thing tomorrow, thanks - And yeah FB, belt is on.
Would be nice if it was a dumb error like that.