| DTC Strategy |
|
- Poor connector connection
- Short/open in downstream O2 Sensor signal circuit
- Defected downstream O2 Sensor
|
| Enable Condition |
Case 1 |
- Battery voltage is higher than 10.7V
- Exhaust gas temperature (model) is higher than 1292°F (700°C)
- O2 sensor voltage is higher than 9.2V
|
| Case 2 |
- Battery voltage is higher than 10.7V
- 10 sec. after dew point end detected
|
| Threshold Value |
Case 1 |
- Downstream O2 sensor voltage is at between 0.4V and 0.5V
|
| Case 2 |
- 0.04 sec. for absolute value of Δusvk is higher than 2V during 5 times of heater ON and OFF condition
|
| Diagnostic Time |
Case 1 |
|
| Case 2 |
|
| MIL ON Condition |
|