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Home >> Mercury >> 2009 >> Sable Premier, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1255 (Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid)) >> DTC Diagnosis >> DTC P0041: - Oxygen Sensor Signals Swapped Bank 1 Sensor 2/Bank 2 Sensor 2

DTC P0041: - Oxygen Sensor Signals Swapped Bank 1 Sensor 2/Bank 2 Sensor 2

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DTC P0041: - OXYGEN SENSOR SIGNALS SWAPPED BANK 1 SENSOR 2/BANK 2 SENSOR 2

Description:  The heated oxygen sensor (HO2S) monitor determines if the HO2S signal response for a fuel shift corresponds to the correct engine bank. The test fails when there is no response from the HO2S being tested.
Possible Causes: 
  • Crossed HO2S harness connectors
  • Crossed HO2S wiring at the harness connectors
  • Crossed HO2S wiring at the PCM connectors
Diagnostic Aids:  Connect the HO2S connector to the correct bank.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - GO to Pinpoint Test DW . -