Diagnosis Procedure

1. Start engine.
2. Check oil pressure warning lamp and confirm it is not illuminated.

OK or NG 

OK: GO TO 2.

NG: Go to "INSPECTION ".

Fig 1: Identifying Oil Pressure Warning Lamp

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1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body.

Refer to "GROUND INSPECTION ".

Fig 2: Checking Ground Connections

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OK or NG 

OK: GO TO 3.

NG: Repair or replace ground connections.

1. Disconnect intake valve timing control position sensor harness connector.
   Fig 3: Identifying Intake Valve Timing Control Position Sensor Harness Connector

   Courtesy of NISSAN NORTH AMERICA, INC.
2. Turn ignition switch ON.
3. Check voltage between intake valve timing control position sensor terminal 3 and ground with CONSULT or tester.

   Voltage: Battery voltage 

   Fig 4: Checking Voltage Between Exhaust Valve Timing Control Position Sensor Terminal 3 And Ground Using Tester

   Courtesy of NISSAN NORTH AMERICA, INC.

   OK or NG 

   OK: GO TO  5.

   NG: GO TO 4.

4. DETECT MALFUNCTIONING PART

   Check the following.

   • Harness connectors E2, F32
   • IPDM E/R harness connector E119
   • Harness for open or short between intake valve timing control position sensor and ECM
   • Harness for open or short between intake valve timing control position sensor and IPDM E/R

   Repair open circuit or short to ground or short to power in harness or connectors.

5. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
   1. Turn ignition switch OFF.
   2. Check harness continuity between intake valve timing control position sensor terminal 1 and ground. Refer to WIRING DIAGRAM .

      Continuity should exist  .

   3. Also check harness for short to power.

   OK or NG 

   OK: GO TO  7.

   NG: GO TO 6.

6. DETECT MALFUNCTIONING PART

   Check the following.

   • Harness connectors E2, F32
   • Harness for open or short between intake valve timing control position sensor and ground

   Repair open circuit or short to power in harness or connectors.

7. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
   1. Disconnect ECM harness connector.
   2. Check harness continuity between the following;

      ECM terminal 72 and intake valve timing control position sensor (bank 1) terminal 2 or ECM terminal 53 and intake valve timing control position sensor (bank 2) terminal 2.

      Refer to WIRING DIAGRAM .

      Continuity should exist  .

   3. Also check harness for short to ground and short to power.

   OK or NG 

   OK: GO TO 8.

   NG: Repair open circuit or short to ground or short to power in harness or connectors.

8. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR

   Refer to "COMPONENT INSPECTION ".

   OK or NG 

   OK: GO TO 9.

   NG: Replace malfunctioning intake valve timing control position sensor. Refer to TIMING CHAIN .

9. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
   1. Reconnect ECM harness connector.
   2. Disconnect intake valve timing control solenoid valve harness connector.
      Fig 5: Identifying Intake Valve Timing Control Solenoid Valve Harness Connector

      Courtesy of NISSAN NORTH AMERICA, INC.
   3. Turn ignition switch ON.
   4. Check voltage between intake valve timing control solenoid valve terminal 2 and ground with CONSULT or tester.

   Voltage: Battery voltage 

   Fig 6: Checking Voltage Between Intake Valve Timing Control Solenoid Valve Terminal 2 And Ground Using Tester

   Courtesy of NISSAN NORTH AMERICA, INC.

   OK or NG 

   OK: GO TO  11.

   NG: GO TO 10.

10. DETECT MALFUNCTIONING PART

    Check the following.

    • Harness connectors E2, F32
    • IPDM E/R harness connector E119
    • Harness for open or short between intake valve timing control solenoid valve and IPDM E/R.

    Repair open circuit or short to ground or short to power in harness or connectors.

11. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check harness continuity between the following;

       ECM terminal 10 and intake valve timing control solenoid valve (bank 1) terminal 1 or ECM terminal 11 and intake valve timing control solenoid valve (bank 2) terminal 1.

       Refer to WIRING DIAGRAM .

       Continuity should exist  .

    4. Also check harness for short to ground and short to power.

    OK or NG 

    OK: GO TO 12.

    NG: Repair open circuit or short to ground or short to power in harness or connectors.

12. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE

    Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK: GO TO 13.

    NG: Replace malfunctioning intake valve timing control solenoid valve. Refer to TIMING CHAIN .

13. CHECK CRANKSHAFT POSITION SENSOR (POS)

    Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK: GO TO 14.

    NG: Replace crankshaft position sensor (POS). Refer to UNIT DISASSEMBLY AND ASSEMBLY .

14. CHECK CAMSHAFT POSITION SENSOR (PHASE)

    Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK: GO TO 15.

    NG: Replace malfunctioning camshaft position sensor (PHASE). Refer to TIMING CHAIN .

15. CHECK CAMSHAFT SPROCKET

    Check accumulation of debris or the signal pick-up portion of the camshaft sprocket. Refer to "REMOVAL AND INSTALLATION ".

    OK or NG 

    OK: GO TO 16.

    NG: Remove debris and clean the signal pick-up cutout of camshaft sprocket.

16. CHECK TIMING CHAIN INSTALLATION

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

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

    Yes or No 

    Yes: Check timing chain installation. Refer to "REMOVAL AND INSTALLATION ".

    No: GO TO 17.

17. CHECK LUBRICATION CIRCUIT

    Refer to "LUBRICATION CIRCUIT ".

    OK or NG 

    OK: GO TO 18.

    NG: Clean lubrication line.

18. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    >> INSPECTION END