| DTC Strategy |
- Monitoring the faulty of the catalyst Performance by comparing the front and rear HO2Ss
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- Faulty catalyst
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| Enable Conditions |
- Engine coolant temperature above 55.5°C (131.9°F)
- Catalyst temperature above 486.9°C (908.42°F) and below 930°C (1, 706°F)
- Vehicle speed higher than 5km/h (3.10mph)
- Engine speed higher than 992RPM and lower than 3392RPM
- Air flow more than 0.36g/rev and less than 1.8g/rev
- Ambient higher than 75 kPa (750 hPa)
- Added value of canister lower than 0.65
- Control of the air-fuel ratio
- Stable operating condition
- Detect the ready for HO2S operating
- Canister valve closed
- Battery voltage higher than 11V and lower than 16V
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| Threshold Value |
- Deterioration index is greater than 1
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| Diagnostic Time |
- 30 cycle of air fuel ratio control
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| MIL ON Condition |
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