| Main Action |
- Monitor downstream HO2S signal (Sensor signal voltage is too low)
|
- Poor connection or damaged harness
- Rear HO2S
|
| Prerequisite Condition |
- Fuel cut off is not activated
- No full load condition with 90% or lower of accelerator pedal value
- Catalyst overheating prevention is not activated
- Battery voltage is between 10V and 16V
|
| Threshold Value |
- Downstream HO2S signal voltage is lower than 0.75V when lambda set point equals to 0.8
|
| Diagnostic Time |
- 7 seconds after lambda set point is shifted to corresponding side
|
| MIL On Condition |
|