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P1137 - Lack Of Ho2S12 Switches - Sensor Indicates Lean

DTC DESCRIPTION P1137 - LACK OF HO2S12 SWITCHES - SENSOR INDICATES LEAN

Description:  The heated oxygen sensor bank 1, sensor 2 (HO2S12) is forced rich and lean and monitored by the PCM. This DTC sets when the PCM does not detect the output of the HO2S12 in a calibrated amount of time.
Possible Causes: 
  • Pinched, shorted, and corroded wiring and pins
  • Crossed HO2S12 wires
  • Exhaust leaks
  • Contaminated HO2S12
  • Damaged HO2S12
Diagnostic Aids:   
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test H.
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