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Home >> Hyundai >> 2004 >> Accent Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) >> DTC Troubleshooting Procedures >> DTC P0137: O2 Sensor Circuit Low Input (Bank1/SESN0R2) >> DTC Detecting Condition >> 1.5 SOHC
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1.5 SOHC

1.5 SOHC DETECTING CONDITION

Item Detecting Condition Possible cause
Monitoring Strategy
  • Signal check, low
  • Short to ground in control circuit (pin 55 to 35)
  • Faulty HO2S
  • Faulty PCM
Threshold value
  • Sensor voltage: < 0.04V
Enable Conditions
  • Short circuit
Diagnostic Time
  • 5 sec
Fail Safe
  • None
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