This unit is NOT working--it is for repair or parts only. I pulled it out of my Nissan Leaf and replaced it with a working unit.
The symptoms were an "open" in the ground to proximity contact (the one to the left of the ground pin when looking at the port on the car). It was open in both directions/polarities. According to discussions on the Leaf Forums this was indicative of a bad diode somewhere on the board. I don't have the time to repair it.