BMW fault code A9CF
Electric A/C compressor
Electric A/C compressor: fault detected at sensor system for current measurement
Module version: Electric A/C compressor (EKK_72)
In: X6 (E72) 2009–2011
Reading and clearing it
Fault code A9CF is a BMW code, stored in the car's electric a/c compressor, 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 electric a/c compressor is on: X6 (E72)
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