The pinouts are correct, and I do get change in displayed adval as the flaps move. So although electrical damage to the POS is possible, I'm more inclined to think that there might be some actual physical damage or misalignment done to the sensor attachment orientation that occurred while I had the flap motor enclosure open to run the AOA tubing and ADAHRS wiring down the center tunnel. That was not something I was paying attention to while I was wrestling with that particular task. I'll have to reopen that enclosure and see what I might have done.