BMW fault code CF5B
Transfer case
In the transfer case, code CF5B 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 (wheel speed, 0xCE), receiver VTG, transmitter DSC/KOMBI
Module version: Transfer box (LMV_84)
In: 3 Series (E90) 2005–2012, 3 Series (E91) 2005–2012, 3 Series (E92) 2006–2013, X1 (E84) 2009–2015, X5 (E70) 2006–2013, X6 (E71) 2008–2014, X6 (E72) 2009–2011
Message (ambient temperature relative time, 0x310) faulty, receiver VTG, transmitter KOMBI
Module version: Transfer box (VGSG70)
In: X5 (E70) 2006–2013, X6 (E71) 2008–2014, X6 (E72) 2009–2011
Message (ambient temperature/relative time, 0x310) fault, receiver VTG, transmitter DSC/KOMBI
Module version: Transfer box (VGSG90)
In: 3 Series (E90) 2005–2012, 3 Series (E91) 2005–2012, 3 Series (E92) 2006–2013, 5 Series (E60) 2003–2010, 5 Series (E61) 2004–2010, X1 (E84) 2009–2015
Reading and clearing it
Fault code CF5B is a BMW code, stored in the car's transfer case, 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 transfer case is on: X5 (E53), 5 Series (E60), 5 Series (E61), X5 (E70), X6 (E71), X6 (E72), X3 (E83), X1 (E84), 3 Series (E90), 3 Series (E91), 3 Series (E92)
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