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DTC Information and Inspection: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Electrical Monitoring
  1. Poor Connector Connection
  2. Open in Downstream O2 Sensor Signal Circuit
  3. Open in Downstream O2 Sensor Ground Circuit
  4. Faulty Downstream O2 Sensor
Enable Condition
  • Downstream O2 Sensor operative readiness detected (sensor element resistance < 1kΩ or heater max heating or normal heating for > 75 sec.)
  • Battery voltage higher than 10 V and lower than 16 V
  • No relevant DTC present
Threshold Value
  • Downstream O2 Sensor Element resistance more than 24 kΩ
Diagnostic Time
  • 2 sec.
MIL ON Condition
  • 2 driving cycles