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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Control System (DTC/Circuit Diagnosis) (Pr25DD) (3 Of 4)) >> DTC/Circuit Diagnosis >> P054B Camshaft Position Bank 1 >> DTC Diagnosis Procedure >> PR25DD engine

PR25DD engine

WARNING: This page is about a different variant/trim than selected.
  1. INSPECTION START 

    With CONSULT

    GO TO 2.

    Without CONSULT

    GO TO 3.

  2. CHECK VTC POSITION 

    SYMBOL With CONSULT

    1. Turn ignition switch ON.
    2. On the CONSULT screen, select "ENGINE" >> "DATA MONITOR" >> "COOLAN TEMP/S".
    3. Check that the "COOLAN TEMP/S" indication value is between -5 deg. C (23 deg. F) and 45 deg. C (113 deg. F).
    4. Start engine and wait at least 5 seconds.
    5. On the CONSULT screen, select "ENGINE" >> "DATA MONITOR" >> "EXH/V TIM B1".
    6. Check that the data monitor item indicates as follows:

      Item

      Value (deg. CA)

      EXH/V TIM B1

      10 +/- 2

    Is the inspection result normal?

    YES

    Check intermittent incident. Refer to Inspection .

    NO

    GO TO 3.

  3. CHECK OIL PRESSURE WARNING LAMP 
    1. Start engine.
    2. Check that oil pressure warning lamp is not illuminated.
      G04073790Courtesy of NISSAN NORTH AMERICA, INC.

    Is oil pressure warning lamp illuminated?

    YES

    Refer to ENGINE OIL : Inspection .

    NO

    GO TO 4.

  4. CHECK EXHAUST VALVE TIMING INTERMEDIATE LOCK CONTROL SOLENOID VALVE 

    Perform Component Inspection of the exhaust valve timing intermediate lock control solenoid valve. Refer to Component Inspection .

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    Repair or replace error-detected parts.

  5. CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE 

    Perform Component Inspection of the exhaust valve timing control solenoid valve. Refer to Component Inspection .

    Is the inspection result normal?

    YES

    GO TO 6.

    NO

    Repair or replace error-detected parts.

  6. CHECK CRANKSHAFT POSITION SENSOR 

    Perform Component Inspection of the crankshaft position sensor. Refer to Component Inspection .

    Is the inspection result normal?

    YES

    GO TO 7.

    NO

    Repair or replace error-detected parts.

  7. CHECK EXHAUST CAMSHAFT POSITION SENSOR 

    Perform Component Inspection of the exhaust camshaft position sensor. Refer to Component Inspection .

    Is the inspection result normal?

    YES

    GO TO 8.

    NO

    Repair or replace error-detected parts.

  8. CHECK CAMSHAFT (EXHAUST) 

    Check the following.

    1. Accumulation of debris on the signal plate of camshaft front end
      GNSJSBIB1246Z-246Courtesy of NISSAN NORTH AMERICA, INC.
    2. Chipping signal plate of camshaft front end

    Is the inspection result normal?

    YES

    GO TO 9.

    NO

    Remove debris and clean the signal plate of camshaft front end or replace camshaft. Refer to CAMSHAFT : Removal & Installation .

  9. CHECK TIMING CHAIN INSTALLATION 

    Check service records for any recent repairs that may cause timing chain misalignment.

    Are there any service records that may cause timing chain misalignment?

    YES

    Check timing chain installation. Refer to TIMING CHAIN : Removal & Installation .

    NO

    GO TO 10.

  10. CHECK LUBRICATION CIRCUIT 

    Perform "Inspection of Camshaft Sprocket (EXHAUST) Oil Groove". Refer to CAMSHAFT : Inspection .

    Is the inspection result normal?

    YES

    Check intermittent incident. Refer to Inspection .

    NO

    Clean lubrication line.