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Service Mode

1 article(s) on «Service Mode». Sorted by severity — most severe first.

Tesla battery errors (BMS): Service Mode codes decoded, what they mean & repair cost (2026)

Full breakdown of the scary Tesla battery codes from Service Mode: BMS_a066/a064/a079 (imbalance), BMS_f107 (sense tabs), BMS_a035/a037 (moisture), BMS_f038 (contactor). What each error means, who it affects (model/year/chemistry) and what the repair costs in Belarus — with links to detailed articles.

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