BMW fault code 0004
Cruise control
In the cruise control, code 0004 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.
Faulty checksum in VDO coding data area
Module version: Cruise control (FGR2)
In: 3 Series (E36) 1990–2000, 5 Series (E39) 1995–2003, 7 Series (E38) 1994–1998
FGR: Control-module fault, coding data (VDO)
Module version: Cruise Control (FGR2_5)
In: 3 Series (E36) 1990–2000, 3 Series (E46) 1998–2006, 5 Series (E39) 1995–2003, 7 Series (E38) 1994–1998
Control unit: internal error
Module version: Cruise control (FGR_KW)
In: 3 Series (E36) 1990–2000, 5 Series (E39) 1995–2003, 7 Series (E38) 1994–1998
Reading and clearing it
Fault code 0004 is a BMW code, stored in the car's cruise control, 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 cruise control is on: 8 Series (E31), 7 Series (E32), 5 Series (E34), 3 Series (E36), Z3 (E36/7), 7 Series (E38), 5 Series (E39), 3 Series (E46)
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