BMW fault code A4B0
Rear-compartment display
FD2: Fault, PCB temperature sensor
Module version: Rear-cabin display 2 (FOMO2_70)
In: 5 Series (E60) 2003–2010
Reading and clearing it
Fault code A4B0 is a BMW code, stored in the car's rear-compartment display, 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 display is on: 5 Series (E60)
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