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General Information: DTC Detecting Condition

DTC DETECTING CONDITION REFERENCE CHART

Item Detecting Condition Possible Cause
Case 1 DTC Strategy
  • Open circuit
  1. Poor connection
  2. Open or short in signal circuit
  3. B1S2
Enable Conditions
  • Battery voltage > 10.7V
  • Exhaust gas temperature (model): 600°C ~ 900°C
  • After enough heated
Threshold Value
  • Internal resistance > 40kΩ
Case 2 DTC Strategy
  • Feedback check
Enable Conditions
  • Battery voltage > 10.7V
  • Exhaust gas temperature (model) < 900C
  • After enough heated
Threshold Value
  • 0.40V < Downstream O2S voltage < 0.50V
Diagnostic Time
  • 600 sec
MIL ON Condition
  • 2 driving cycle
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