Home >> BMW >> 2012 >> 335xi Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - N55 - Diagnostic Trouble Codes - DTC P0617 (BMW DTC 1F1B40) Through DTC U1128 (BMW DTC CDC304) >> DTC P3223; BMW DTC 210601: Alternator, mechanical: malfunction >> Fault code