DTC Information And Inspection: DTC Detecting Condition

Item	Detecting Condition	Possible Cause
DTC Strategy	Electrical monitoring	Poor connector connection Air leak in Intake or Exhaust System Faulty injector Faulty fuel pressure Faulty HO2S
Enable Condition	Vehicle speed more than 12.43 MPH (20 km/h) Atmospheric pressure more than 75 kPa Temperature above 1328°F (720°C) of front oxygen sensor tip for more than 70 seconds of front oxygen sensor heating time Temperature above 1175°F (635°C) of rear oxygen sensor tip for more than 80 seconds of rear oxygen sensor heating time Difference between the lambda setting value and the actual value is less than 0.25 Temperature above 122°F (50°C) of ECT Rear oxygen sensor voltage more than 0.6V Engine torque is between 10 to 20 Nm and 100 to 200 Nm (depending on engine speed) Catalyst model temperature 878 to 1706°F (470 to 930°C) Engine speed is between 832 and 3168 RPM Engine load s between 9 to 11% and 35 to 42% Driving condition Difference between the actual engine speed and the filtered engine speed is less than 320 RPM Difference between the actual intake air volume and the filtered intake air volume is less than 130 mg/stroke Difference between the actual lambda value and the filtered lambda value is less than 7% Intake air value is more than 2g Lambda control activated
Threshold Value	When the ratio between actual oxygen sensor value and model value is greater than 1
Diagnostic Time	25 seconds
MIL ON Condition	2 driving cycles