Home >> BMW >> 2011 >> 760Li >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - N74 - Diagnostic Trouble Codes - DTC P10C4 (BMW DTC 11B201) Through DTC P12D6 (BMW DTC 12CE01) >> DTC P0161; BMW DTC 12B801: Oxygen-sensor heater after catalytic converter 2, function: internal resistance too high >> Action in service