| DTC Strategy |
|
- Poor connector connection
- Faulty downstream O2 sensor circuit
- Faulty downstream O2 sensor
|
| Enable Condition |
- Vehicle speed more than 20 km/h (12.43MPH)
- Atmospheric pressure more than 75 kPa
- Temperature above 720°C (1328°F) of front oxygen sensor tip for more than 70 seconds of front oxygen sensor heating time
- Temperature above 635°C (1175°F) 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 50°C (122°F) 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 470 to 930°C (878 to 1706°F)
- 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 8g
- Intake air value is more than 2g
- Lambda control activated
|
| Threshold Value |
- Downstream O2 sensor voltage is less than 0.82V
|
| Diagnostic Time |
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| MIL ON Condition |
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