DTC DETECTION LOGIC

NOTE:
If DTC P0550 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to DTC Logic (GT-R certified NISSAN dealer).

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
    [Power steering pressure sensor circuit is shorted.]
    [CKP sensor (POS) circuit is open or shorted.]
    [CMP sensor (PHASE) (bank 2) circuit is shorted.]
    (Manifold absolute pressure sensor circuit is shorted.)
    (APP sensor 2 circuit is shorted.)
    (Refrigerant pressure sensor circuit is shorted.)
  • Power steering pressure sensor
  • Crankshaft position sensor (POS)
  • Camshaft position sensor (PHASE) (bank 2)
  • Manifold absolute pressure sensor
  • Accelerator pedal position sensor
  • Refrigerant pressure sensor

 
 DTC CONFIRMATION PROCEDURE

 
 1.PRECONDITIONING
 
 2.PERFORM DTC CONFIRMATION PROCEDURE