BMW fault code 0004
Seat memory, front passenger
SMB: Hall sensor, seat height: open circuit
Module version: Seat memory, front passenger (BFS_64)
In: 6 Series (E63) 2003–2010, 6 Series (E64) 2004–2010
Reading and clearing it
Fault code 0004 is a BMW code, stored in the car's seat memory, front passenger, 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 seat memory, front passenger is on: 6 Series (E63), 6 Series (E64)
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