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Home › Hyundai › 2004 › Accent Base › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (1 Of 2) › DTC Troubleshooting Procedures › DTC P0136: O2 Sensor Circuit Malfunction (Bank1/Sensor2) › DTC Detecting Condition › 1.6 DOHC

1.6 DOHC

1.6 DOHC DETECTING CONDITION

Item Detecting Condition Possible cause
Monitoring Strategy
  • Rationality check
  • Open HO2S
  • Short HO2S
  • Faulty HO2S.
  • Faulty PCM.
  • Poor connections between HO2S and ECM.
  • Misplaced, bent, loose or corroded terminals.
Threshold value
  • Counter of ushk > 1.25V during 0.05sec after heater on-> off
: > 5 times
Enable Conditions
  • No signal check high error
  • Heater on->off counter > 10 times
Diagnostic Time  
Fail Safe
  • None
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