BMW fault code 0091
Instrument cluster
In the instrument cluster, code 0091 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.
Gong_2
Module version: Instrument cluster (IKE)
In: 5 Series (E39) 1995–2003, 7 Series (E38) 1994–2001, X5 (E53) 1999–2006
IKE: Gong tone (T2)
Module version: Instrument cluster (IKI)
In: 5 Series (E39) 1995–2003, 7 Series (E38) 1998–2001, X5 (E53) 1999–2006
Reading and clearing it
Fault code 0091 is a BMW code, stored in the car's instrument cluster, 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 instrument cluster is on: 8 Series (E31), 5 Series (E34), 3 Series (E36), Z3 (E36/7), 7 Series (E38), 5 Series (E39), 3 Series (E46), Z8 (E52), X5 (E53), X3 (E83), Z4 (E85), Z4 (E86)
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