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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • No signal activity
  1. Poor connection or damaged harness
  2. Open or Short to ground in harness
  3. HO2S(S2)
  4. ECM/PCM
Enable Conditions
  • Battery voltage is higher than 10.7V
  • Lambda is than 0.8 for 8 sec
Threshold value
  • Downstream O2S voltage is lower than 0.65V.
Diagnosis Time
  • 10 sec
MIL On Condition
  • 2 Driving Cycles
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