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General Information: DTC Detecting Condition

DTC DETECTING CONDITION

Item Detecting Condition Possible cause
DTC Strategy
  • Electrical check - check symptoms related to Lambda sensor open circuit
  1. Poor connection or damaged harness
  2. Open in HO2S control circuit
  3. Front HO2S
Enable Conditions
  • 11V < Battery voltage < 16V
Threshold value
  • 1.9V < Signal < 2.1V for 5sec during internal test
  • Reference ground circuit open (VG)
Diagnosis Time
  • Within 15sec. after related symptom detected
MIL On Condition
  • 2 Drive Cycles
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