BMW fault code A5AC
Rear compartment controller
FCON: Transport mode active
Module version: Rear compartment controller (ZBEF65)
In: 7 Series (E65) 2001–2008, 7 Series (E66) 2002–2008, 7 Series (E67) 2002–2008
Reading and clearing it
Fault code A5AC is a BMW code, stored in the car's rear compartment controller, 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 rear compartment controller is on: 7 Series (E65), 7 Series (E66), 7 Series (E67)
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