lorenfb said:Like most problems that arise from careless mechanics, it's very difficult requiring emphasizing;
1. The vehicle had no battery drain before 24 kWh battery replacement.
2. The BCM is integral to the functioning of the 24 kWh battery, e.g. it has physical wiring connections too it.
3. The Nissan repair manual's procedure for replacing the 24 kWh battery and each step needs to be reviewed as related to the BCM.
lorenfb;
A very interesting proposition that you are making as so many of us (Leaf owners) have had "battery drain" issues that seem to be highly specific to EVs. Being an ICE guy for decades, most "battery issues" related to a bad wire, a bad battery cell (usually) and very infrequently - a bad vehicle design related to new features not properly vetted (my Father-in-laws Lexus that required new batteries regularly even though he maintained "trickle" charging).
Is there a way to tell from LeafSpy data, DTCs, or any other analytics available to us ordinary folks that would help identify that a mechanic damaged such a critical electronic part after repair work? Just wondering.