On Board Diagnosis Logic
DTC DETECTING CONDITION AND POSSIBLE CAUSE
| DTC No. | Trouble diagnosis name | DTC detecting condition | Possible cause |
|---|---|---|---|
| P0405 0405 |
EGR temperature sensor circuit low input | An excessively low voltage from the EGR temperature sensor is sent to ECM even when engine coolant temperature is low. |
|
| P0406 0406 |
EGR temperature sensor circuit high input | An excessively high voltage from the EGR temperature sensor is sent to ECM even when engine coolant temperature is high. |
|