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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
Main Action
  • Plausibility check during fuel cut-off phase
  1. Poor connection or damaged harness
  2. Front HO2S
Prerequisite Condition
  • Fuel cut-off is activated for longer than 3 seconds.
  • Upstream O2 sensor operative readiness is detected.
  • Battery voltage is between 11V and 16V
Threshold Value
  • Upstream O2 sensor current is greater than 12 mA or less than 1 mA
Diagnosis Time
  • 2 Seconds
MIL On Condition
  • 3 driving cycles
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