BMW fault code D054
Hybrid pressure-tank electronics
No message, receiver TFE, transmitter DME-DDE
Module version: Hybrid pressure-tank electronics (TFE1)
In: X6 (E72) 2009–2011
Reading and clearing it
Fault code D054 is a BMW code, stored in the car's hybrid pressure-tank 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 hybrid pressure-tank electronics is on: X5 (E70), X6 (E71), X6 (E72)
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