The car won't charge if cell voltages are fluctuating as indicated..At the moment the car not charge because the charge sotps in few minutes without energy transfer (100W in the last charge by public charger) . I want to try if possible to use an EVSE settled with 6 Amps of charging current,
You can tow it with all 4 wheels on the ground, key to position 'ACC' and gear in anything but P (ignore the waring in the manual)but i must move the car for reach a 230V power outlet...
The data you see has already been processed by the BMU and is re-transmitted on the OBD bus. The data transfer on the internal BAT CAN between the BMU & CMU boards is faster, but not accessible without a CAN bridge.yesturday i make some other test and had captured some data using CarScanner and CanIon.
Canion show all cells in a single screen but has a refresh time too much slow for see what happen when the error triggers
That is a typical CMU fault, a reported 2.1V actually means no data received..
But I noticed that sometime, a single refresh cycle shows one or two cell with 2.1V (in yellow) an then the value returns immediatly at 3.8V.
Typical symptom of a CMU issue.And sometime the level gauge on the dashboard of the car has level bars flashing, they sometimes disappears and reappear again. I was make a video , but in the time of record the gauge was regular....
The most useful information is which cells voltages are fluctuating.Now i want to make some graphs with data captured and chek if there are some useful information.
Not ideal, if the car isn't in READY, all power is supplied by the 12V battery only, (low voltage can affect CMU boards).But the new 12V battery is coming and think to have in my hand only tomorrow, so i made last test with the poor battery with in parallel a good battery with cables. So not in an optimal environment.