DTC Information: DTC Detecting Condition
| Item |
Detecting Condition |
Possible Cause |
| DTC Strategy |
- Check Catalyst oxygen storage capacity
|
- Exhaust system
- Downstream oxygen sensor
- Catalyst converter
- Out of range ECT sensor
- Exhaust manifold
- High fuel pressure
- Incorrect connection
- Misfire
- Injector
- EGR system
|
| Enable Conditions |
- Engine speed between 1320 ~ 3000rpm
- Engine load between 20 ~ 75%
- Catalyst temperature (model) between 600 ~ 850°C (1112 ~1562°F)
- Fuel system status: Closed loop
- Time after engine start greater than 260 seconds
- Delta temperature of catalyst less than 40°C (104°F)
|
| Threshold Value |
- Ratio of Actual OSC to Model OSC less than 1.0
|
| Diagnostic Time |
- 4 Cycles of Lambda Setpoint steps(Rich to Lean)
|
| MIL On Condition |
|
* S1: upstream oxygen sensor/S2: downstream oxygen sensor