BMW fault code 003A
Central body electronics
Overcurrent counter fuse relay I, excessive current at MFFA, MFFZ, MFFHA, MFFHZ, MER, MVR, MZS, 3OESL
Module version: Central body electronics (ZKE2)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
Reading and clearing it
Fault code 003A is a BMW code, stored in the car's central body electronics, 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 central body electronics is on: 8 Series (E31)
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