General Information: DTC Detecting Condition
DTC DETECTING CONDITION CHART
| Item | Detecting Condition | Possible Cause | |
|---|---|---|---|
| DTC Strategy | Rationality check | ||
| General Enable Conditions | Dew point end detected Required lambda = 1 Battery voltage > 10.7V Exhaust gas temperature (model) < 800°C (1472°F) Heater control enabled |
Poor connection Open or short power/ground in signal circuit B1S1 ECM |
|
| Case1 | Enable Conditions | B1S2 sensor voltage > 0.5V | |
| Threshold Value | B1S1 sensor voltage : 0.06 ~ 0.4V | ||
| Diagnostic Time | 10 sec | ||
| Case2 | Enable Conditions | B1S2 sensor voltage < 0.1V | |
| Threshold Value | B1S1 sensor voltage : 0.6 ~ 1.08V | ||
| Diagnostic Time | 10 sec | ||
| Case3 | Enable Conditions | Time after dew point end detected > 10s | |
| Threshold Value | Counter of l Δusvk > 2V during 0.04 sec after heater on→off l > 5 times | ||
| MIL ON Condition | 2 driving cycle | ||
* B1S1 : upstream oxygen sensor/B1S2 : downstream oxygen sensor