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Home >> Ford >> 2015 >> Explorer Limited, 3.5L Eng VIN 8, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> Diagnostic Trouble Code (DTC) Charts and Descriptions >> P0137 - O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) - DTC Chart

P0137 - O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) - DTC Chart

P0137 - O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 1 SENSOR 2) - DTC CHART

Description:  This DTC sets when a concern is detected with one of the circuits used to determine the oxygen content in the exhaust gas.
Possible Causes: 
  • HO2S12 circuit open
  • HO2S12 circuit short to ground
  • Damaged heated oxygen sensor bank 1, sensor 2 (HO2S12)
Diagnostic Aids: 
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test DW .