| Case 1 |
DTC Strategy |
- Monitor the reversal time of HO2S (down) during the fuel cut operation (rich -> lean)
|
- Poor Connector Connection
- HO2S (Bank2/sensor2)
- ECM
|
| Enable Conditions |
- Detects the operational readiness of the O2 (down) sensor
- Internal resistance of HO2S (down) is lower than 3000Ω
- Catalyst temperature (value of model) is higher than 400°C
- O2 (down) sensor voltage is higher than 0.6V (Fuel cut mode entry)
- Battery voltage higher than 11V and lower than 16V
|
| Threshold Value |
- Response time of HO2S (down) is lower than 1500mv/s during the fuel cut operation
|
| Diagnostic Time |
- 3 times or more detected during the fuel cut operation
|
| Case 2 |
DTC Strategy |
- Monitor the reversal time of HO2S (down) during the fuel cut operation (lean -> rich)
|
| Enable Conditions |
- Detects the operational readiness of the O2 (down) sensor
- Intake air is more than 100g after the fuel cut operation
- Intake air is more than 10g and less than 250g
- Catalyst temperature (value of model) is higher than 400°C and lower than 1774.5°C
- The exhaust gas temperature (value of model) of sensor location is higher than 400°C
- Internal resistance of HO2S (down) is lower than 3000Ω
- Battery voltage higher than 11V and lower than 16V
|
| Threshold Value |
- Response time of HO2S (down) is lower than 1500mv/s during the fuel cut operation
|
| Diagnostic Time |
- 3times or more detected during the fuel cut operation
|
| MIL ON Condition |
|