BMW fault code CF2B
Transmission control
In the transmission control, code CF2B 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.
No message, receiver EGS, transmitter LDM
Module versions: Transmission control (GS1912), Transmission control (GS19B)
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.
No message from longitudinal dynamics management, receiver EGS, transmitter GWS/LDM
Module version: Transmission control (GS19D)
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.
Multiple fault message 2 (medium seriousness) for (EGS_EL, PT-CAN) from (DSC_Modul, PT-CAN)
Module version: Transmission control (GSB233)
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.
EGS: Signal, engine speed, from engine management
Module version: Transmission control (GSF21A)
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.
No message from MDrive, receiver SMG, transmitter DME-DDE
Module version: Transmission control unit (SMG_60)
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 CF2B is a BMW code, stored in the car's transmission 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 transmission control is on: X5 (E53), 5 Series (E60), 5 Series (E61), 6 Series (E63), 6 Series (E64), 7 Series (E65), 7 Series (E66), 7 Series (E67), X5 (E70), X6 (E71), X6 (E72), 1 Series (E81), 1 Series (E82), X3 (E83), X1 (E84), Z4 (E85), Z4 (E86), 1 Series (E87), 1 Series (E88), Z4 (E89), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)
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