BMW fault code A809
Reversing camera
RFK: Internal control-module fault (EOL checksum)
Module version: Reversing camera (RFK_70)
In: X5 (E70) 2006–2013, X6 (E71) 2008–2014, X6 (E72) 2009–2011
Reading and clearing it
Fault code A809 is a BMW code, stored in the car's reversing camera, 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 reversing camera is on: X5 (E70), X6 (E71), X6 (E72)
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