What this usually means
Even on new EVs, many apparent dead-car problems start with the 12V auxiliary system. Check 12V voltage, DC-DC charging behaviour, and fault history before assuming high-voltage battery failure.
What to ask the workshop before approving repair
- • Show the diagnostic fault codes.
- • Show photo/video proof of the failed part.
- • Give an itemised quote for parts and labour.
- • Explain why cheaper common fixes were ruled out.
- • Use/confirm: EV diagnostic scanner
- • Use/confirm: 12V battery load tester
This is not a final diagnosis. It is a money-saving checklist before you go workshop.