Low voltage does some very strange things to these cars.
What really threw me a curve when we were diagnosing my service AH light was there were no DTC's stored. I even had the scanner on when the light came on and it showed nothing.
It has happened on one other occasion but it was after the car had set for awhile. Once the voltage stabilized from the alternator charging, I checked it and it was around 12.2 volts. Right were it was when I had the message before.
