BMW fault code 012721

Hybrid-transmission control

TCM: Electronic pressure-control valve 4, open circuit or short circuit to positive

Module version: Hybrid-transmission control (TCM_72)

In: X6 (E72) 2009–2011

Reading and clearing it

Fault code 012721 is a BMW code, stored in the car's hybrid-transmission control, 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-transmission control is on: X6 (E72)

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