| DTC Strategy |
|
- Poor connector connection
- Short/open in upstream O2 sensor signal circuit
- Faulty upstream O2 sensor
|
| General Enable Conditions |
- Dew point end detected
- Fuel feed back control active
- Battery voltage is greater than 11V
- Exhaust Gas temperature is 280°C to 800°C
- No injector error
- No upstream O2 sensor heater error
|
| Case 1 |
Enable Conditions |
- S2 sensor voltage is greater than 0.5V
|
| Threshold Value |
- S1 sensor voltage is 0.06V to 0.4V
|
| Diagnostic Time |
|
| Case 2 |
Enable Conditions |
- S2 sensor voltage is less than 0.1V
|
| Threshold Value |
- S1 sensor voltage is 0.06V to 0.4V
|
| Diagnostic Time |
|
| Case 3 |
Enable Conditions |
|
| Threshold Value |
- The number of that the absolute value of Δusvk is greater than 2V during 0.04s after turning on and off a heater is more than or equal to 5 times
|
| Diagnostic Time |
|
| MIL ON Condition |
|