Home › BMW › 2007 › M Coupe › Repair and Diagnosis › Engine Performance › System › Diagnostic Trouble Codes (S54) › MSS70 Engine Operating System DTCS › DTC P112C, BMW Hex Code 0x2C3D, BMW Code 11325: O2 Sensor Negative Current or Positive Current Control Circuit/Open (Bank 1 Sensor 1) (SIG) › System test