424282db_ft_error_codes_troubleshooting__Notes
[Unit] ECU [Error dec/hex] 83 [Parameter dec/hex] 53 [BMW Model] Engine M73 (750i/750iL E38 1994-2001, L7 E38 1996-2001, 850Ci E31 1994-1999) [Year] 1999 [What is it] M73LEVMY99 only: EKAT-Status 11: plausibility check of temperature sensor in battery [How to solve] Electrical heated catalyst check [Notes] 
Error description found in internet
BMW | P.A. Soft error codes troubleshooting
Notes