Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes - DTC P0010-P1236 (N62) >> BMW Me9.2.3 (DTC P0010-P1236) >> DTC P0140, BMW Hex Code 0x2C71, BMW Code 11377: O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2) (SIG) >> System test