Home >> BMW >> 2014 >> 650i 2D Convertible >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes - Bank 1 (N63TU) >> Fault Code Tests >> DTC P0161: BMW DTC 12B801; DME -- O2 Sensor Heater Circuit (Bank 2 Sensor 2) >> Fault effect and breakdown warning