General Information: DTC Detecting Condition
DTC DETECTING CONDITION CHART
| Item |
Detecting Condition |
Possible Cause |
| DTC Strategy |
- Check catalyst oxygen storage capacity by evaluating downstream O2 sensor fluctuations
|
- Exhaust gas leaks
- Faulty rear HO2S
- Faulty three way catalyst converter
|
| Enable Conditions |
- Coolant temperature >73°C (163°F)
- 550°C (1022°F) < Modeled catalyst temp<850°C (1562°F)
- Vehicle speed >3mph
- 1300 < Engine speed <3200
- 0.3g/rev. < MAF < 0.8g/rev.
- Ambient pressure > 70kPa (700hPa)
- Canister load < 0.5
- Lambda control active & Stable driving condition
- Downstream O2 sensor operative readiness
- No opening/closing of Canister Purge Valve
- No relevant failure
- 11V < Battery voltage < 16V
|
| Threshold Value |
- Average malfunction index > 1
|
| Diagnostic Time |
- 50 Lambda Controller Cycles
|
| MIL On Condition |
|