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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) (PHEV) >> DTC P0037-00: HO2S Heater Circuit Low (Bank 1/Sensor 2) >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Electrical Monitoring
  1. Poor Connector Connection
  2. Short to ground
  3. Faulty Downstream O2 Sensor
Enable Conditions
  • Engine speed greater than 32 RPM
  • Battery voltage higher than 10V and lower than 16V
Threshold Value
  • Short to ground
Diagnostic Time
  • Continuous
MIL ON Condition
  • 2 Driving Cycles
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