BMW fault code 0001
Multifunction steering wheel
Data line interruption signal line to MFL
Module version: Multifunction steering wheel E38 (MFL)
In: 5 Series (E39) 1995–2003, 7 Series (E38) 1994–2001
Reading and clearing it
Fault code 0001 is a BMW code, stored in the car's multifunction steering wheel, not a generic OBD2 code (P0xxx): a generic OBD2 reader only reaches the engine's emissions faults, so it won't show it. AutoLingo for BMW reads it with BMW's own diagnostic protocols, in plain English, with the details the module stored about it, and clears it after a repair. If a fault comes right back after it's cleared, the problem is still there.
The multifunction steering wheel is on: 7 Series (E38), 5 Series (E39)
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