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Home >> Hyundai >> 2006 >> Elantra Limited >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System (G4GC-GSL 2.0) >> DTC Troubleshooting Procedures >> DTC P0030 Ho2S Heater Control Circuit (Bank 1/Sensor 1) >> DTC Detecting Condition

DTC P0030 Ho2S Heater Control Circuit (Bank 1/Sensor 1): DTC Detecting Condition

DTC DETECTING CONDITION

Item Detecting Condition Possible Cause
DTC Strategy Case 1
  • Controller Malfunction - Gain/Offset
  • Related fuse blown or missing
  • Heater control circuit open or short
  • Power supply circuit open or short
  • Contact resistance in connectors
  • Faulty HO2S
Case 2
  • Check operative readiness
Case 3
  • Evaluate O2 sensor Element Temperature via measuring Element Resistance
Enable Conditions Case 1
  • No failure on front HO2S
Case 2
  • 11 ≤ Battery voltage ≤ 16V
  • Dewpoint exceeded
Case 3
  • Heater power control active since a certain time (02 Sensor element temperature check) > 20 sec.
  • Controlled Heating (controller malfunction check and element resistance check)
Threshold Value Case 1
  • Check if measured reference offset voltages and circuit gain lie within min./max. limits > thd.
Case 2
  • Operative readiness not reached after certain time with active heating > 30~100 sec.
Case 3
  • 690°C (1,274°F) < Front HO2S element temperature < 875°C (1,607°F), 30 times during 50 monitoring cycle
Diagnostic Time Case 1
  • 24 sec.
Case 2
  • 30~100 sec.
Case 3
  • 50 sec.
Fail-Safe  
  • EVAP. emission control function is controlled in minimum operation mode