BMW fault code A66B

Roof function center

FZD: Lighting for make-up mirror

Module version: Roof function center (FZD_70)

In: X5 (E70) 2006–2013, X6 (E71) 2008–2014, X6 (E72) 2009–2011

Reading and clearing it

Fault code A66B is a BMW code, stored in the car's roof function center, 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 roof function center is on: X5 (E70), X6 (E71), X6 (E72), 1 Series (E81), 1 Series (E82), X1 (E84), 1 Series (E87), 1 Series (E88), Z4 (E89), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)

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