Even though my Grand Lizard has a remote battery holder, I was stupid and changed the batteries anyway. Now I get the Adjust Failure message. Was having difficulty getting the old batteries out so probably bumped something. Tested the red wire at the board and it's getting 5.18 volts with the power off so the wiring and new batteries seem ok. Wires feel solidly connected to the board.
Is there something wrong with this set up? Why didn't I just leave it alone?