On Board Diagnosis Logic
WARNING: This page is about a different car, the 2008 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
The MIL will not light up for this diagnosis.
NOTE:
If DTC P0550 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to
"DTC P0643 SENSOR POWER SUPPLY ".
DTC DETECTING CONDITION AND POSSIBLE CAUSE
| DTC No. | Trouble diagnosis name | DTC detecting condition | Possible cause |
|---|---|---|---|
| P0550 0550 |
Power steering pressure sensor circuit | An excessively low or high voltage from the sensor is sent to ECM. |
|