Start the car after a couple of days idle and get these warnings ABS, HDC, EBA, gearbox fault, check engine, EPB, fuel low, no special programs, speedo not working fuel gauge not working, system error, battery fault, limp mode etc etc

Cleared the faults but IID Tool would not always connect or clear faults (update failed). After a few goes, everything cleared and all is back to normal - until the next time no doubt

The fault list is comms errors and some random B and P codes which seem to change each time except for the BMS error

B11DB-87 (2A) Battery monitoring module - Bus signal/message failure - missing a message
B00D2-87 (AE) Restraint system malfunction indicator 1 - Bus signal/message failure - missing a message

I have a new battery and changed the brake switch and reset the BMS but I still get this and it is completely random - could be after five miles or five feet