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Home >> Infiniti >> 2015 >> Q60 IPL >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Diagnostic Trouble Codes (DTCS) P0447-P2123) (Convertible) >> DTC/Circuit Diagnosis >> DTC P0550: PSP Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE:

If DTC P0550 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to  DTC LOGIC  . 

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0550 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