BMW fault code 0009
Entrance aid, passenger
In the entrance aid, passenger, code 0009 means different things depending on the version of the module in the car. Find your car below; the app shows the right one for yours.
Hall sensor seat rail, short circuit to ground
Module versions: Passenger seat memory (B_SM46_3), Passenger seat memory (B_SM46_4)
Which BMWs have these versions depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
SMB: Hall sensor, seat carriage, short circuit to ground
Module versions: Entrance aid, passenger (BSM46C_4), Entrance aid, passenger (BSM46C_5)
In: 3 Series (E46) 1998–2006
SMB: Hall sens, seat carriage, short circ. to neg
Module version: Entrance aid, passenger (EASY_E_B)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
Reading and clearing it
Fault code 0009 is a BMW code, stored in the car's entrance aid, 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 entrance aid, passenger is on: 3 Series (E46)
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