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Home >> Hyundai >> 2017 >> Azera Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0037: HO2S Heater Control Circuit Low (Bank 1/Sensor 2) >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Detects a short to ground or open
  1. Poor Connection
  2. Open in Power Circuit
  3. Open or short to ground in control circuit
  4. HO2S(B1/S2)
  5. PCM
Enable Conditions
  • No disabling Faults
  • Engine Running
  • 11V ≤ Battery Voltage ≤ 16V
Threshold value
  • Short to ground or open circuit
Diagnosis Time
  • Continuous (More than 5 seconds failure for every 10 seconds test)
MIL On Condition
  • 2 Drive Cycles
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