This is my first post here.
My I-miev from 2011 will not charge more than for about a minute or so.
It started with interrupted charging now and then, but now it is almost impossible to charge.
I get error P1A81 from the BMU, and the yellow light comes on.
When I checked the voltages from CMU12 one cell was jumping all around, from 0V up to 4.05V (the same value as the other cells) very fast.
The car runs just fine, so the cell must be working OK.
I guess that this means that the CMU is faulty.
Is this a common fault that can easily be fixed or is it better to just get a new CMU?
If I get a new CMU it needs to be programmed with the right identity, can I do it from Diagbox or is it more complicated?
Perhaps I just can move the EEPROM from the old board to the new?
Lots of questions, but I'm a fast learner.