| DTC Strategy |
|
- Poor connection
- Open or short in signal circuit
- B1/S1
|
| General Enable Condition |
- Fuel feed back control active
- Battery voltage is higher than 10.7V
- Upstream O2S Heater control On
|
| Case 1 |
Enable Condition |
- S2 voltage is higher than 0.55V
|
| Threshold Value |
- S1 sensor voltage is between 0.06V and 0.4V
|
| Diagnostic Time |
|
| Case 2 |
Enable Condition |
- Downstream O2S voltage is lower than 0.15V
|
| Threshold Value |
- S1 sensor voltage is between 0.6V and 1.08V
|
| Diagnostic Time |
|
| Case 3 |
Enable Condition |
- Time after dew point end detected is higher than 10 sec
|
| Threshold Value |
- The number of that the absolute value of Δusvk is greater than 2V during 0.04 sec after turning on and off a heater is more than or equal to 5 times.
|
| MIL On Condition |
|