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Home >> Infiniti >> 2010 >> M45 x >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0460 To P1421 >> DTC P0550 PSP Sensor >> On Board Diagnosis Logic
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On Board Diagnosis Logic

The MIL will not illuminate for this diagnosis  .

NOTE: If DTC P0550 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to "DTC CONFIRMATION PROCEDURE ".
DTC DETECTING CONDITION CHART

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.
  • Harness or connectors

    (The sensor circuit is open or shorted)

  • Power steering pressure sensor