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Home >> Kia >> 2019 >> Forte FE, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 6) >> DTC P0037-00: HO2S Heater Control Circuit Low (Bank 1/Sensor 2) >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Circuit check
  • Fuse blown or missing
  • Open or short to ground in power supply or control harness
  • Poor connection or damaged harness
  • Faulty downstream HO2S
Enable Conditions
  • Battery voltage between 11 - 16V
  • O2 sensor heater control duty between 3.5 - 96.5%
  • No relevant failure
Threshold Value
  • Short circuit to Ground (ECU power stage diagnosis)
Diagnostic Time
  • 10s
MIL ON Condition
  • 2 driving cycles
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