LeftieBiker wrote: ↑Sat Sep 03, 2022 10:56 am
Isolation errors are essentially internal short circuits, and they are the kind of errors that cause the system in which they appear to shut down.
Agreed, except that isolation failure could be leakage, not a hard short. For example, it could be due to road salt getting near the CHAdeMO high voltage wires or pins, causing a leakage to chassis when the salt absorbs moisture. If the leakage was after the quick charge contactors, this would not affect driving or AC charging, only quick charging.
Leakage is also the kind of phenomenon whereby the application of high voltage can slowly cause current to increase over many seconds, explaining the ~20 second delay before charging shuts down. If that's the case, cleaning the back of the CHAdeMO connector with alcohol might
fix it. I would pull the high voltage disconnect before attempting this, or leave it to the techs to do that. Though it seems unlikely to me that the fault fixing procedure would include something so simple and practical.
2012 Leaf with new battery May 2019. New to me June 2019.