BMW fault code DDD1
Digital tuner US
Long and/or frequent unlocks (Error_Unlock_Long)
Module version: Digital tuner US (IBOC60)
In: 7 Series (E65) 2001–2008, 7 Series (E66) 2002–2008
Reading and clearing it
Fault code DDD1 is a BMW code, stored in the car's digital tuner us, 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 digital tuner us is on: 5 Series (E60), 5 Series (E61), 6 Series (E63), 6 Series (E64), 7 Series (E65), 7 Series (E66), 7 Series (E67), X5 (E70), X6 (E71), X6 (E72), 1 Series (E81), 1 Series (E82), X1 (E84), 1 Series (E87), 1 Series (E88), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)
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