| DTC Strategy |
|
- Poor connector connection
- HO2S (Bank 1, Sensor 2)
- HOS2 (Bank 1, Sensor 2) circuit
|
| Enable Condition |
- Battery voltage is greater than 10.7V
- Target lambda is 0.75
- Lambda control activated
- Engine speed is between 1000 and 6500 RPM
- Rear HO2S exhaust temperature greater than 500°C (932°F)
- Catalyst model temperature 350 to 900°C (662 to 1652°F)
- Rear HO2S heat voltage greater than 0.25V
|
| Threshold Value |
- Oxygen sensor voltage is below 0.75V
|
| Diagnostic Time |
- Target air fuel ratio 2 times
|
| MIL ON Condition |
|