| Case1 |
DTC Strategy |
|
- Poor connection
- Open or short power/ground in signal circuit
- B1/S1
|
| Enable Conditions |
- Dew point end detected
- Fuel feed back control active
- Battery voltage is higher than 10.7V
- Exhaust Gas temperature is higher than 600°C and lower than 900°C
- No upstream O2 sensor heater error.
|
| Threshold Value |
- Internal resistance is higher than 40kΩ
|
| Case2 |
DTC Strategy |
|
| Enable Conditions |
- Dew point end detected
- Fuel feed back control active
- Battery voltage is higher than 10.7V
- Exhaust gas temperature (model) is lower than 900°C (1652°F)
- No upstream O2 sensor heater error
|
| Threshold Value |
- Average of loaded voltage is higher than 2.8V
|
| Diagnostic Time |
|
| MIL ON Condition |
|