"Sme fc 21F284 ""high-voltage battery unit, cell supervision circuit: safety circuit activated"".
BMW technical service bulletin B612216 for 2014-2017 BMW I3.
- Bulletin number
- B612216
- Component
- Electrical system
- Summary
- "SME FC 21F284 ""HIGH-VOLTAGE BATTERY UNIT, CELL SUPERVISION CIRCUIT: SAFETY CIRCUIT ACTIVATED"". Vehicle is not able to be put in a driving readiness state. Possible power reduction with ""Drivetrain Malfunction"" message while driving. Fault code (FC) ""21F284 -:""High-voltage battery unit, cell supervision circuit: Safety circuit activated"" is entered in the fault memory (FM) of the battery management electronics (SME) A fault in one or more of the following components: cell supervision circuit (CSC) CSC wiring harness cell module temperature sensor 12 volt connector of cell module"
Owners of these vehicles have filed 25 complaints in the electrical category.
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