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DTC P0140 - O2 Sensor Circuit No Activity Detected (Bank Sensor 2)

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DTC DESCRIPTION P0140 - O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK SENSOR 2)

Description:  The nitrogen oxides bank 1, sensor 2 (NOx12) module monitors the NOx12 sensor oxygen (O2) signal for a lack of movement concern. This DTC sets when the actual O2 signal value does not change from the default O2 signal value.
Possible Causes: 
  • Corrosion
  • Incorrect connections
  • Radio frequency interference or electromagnetic interference
  • Contaminated NOx12 sensor
  • Damaged NOx12 sensor
Diagnostic Aids:   
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST RD .