Diagnostic Procedure

1. Turn ignition switch OFF.
2. Disconnect intake valve timing control solenoid valve harness connector.
   Fig 1: Locating Intake Valve Timing Control Solenoid Valve Harness Connector

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Turn ignition switch ON.
4. Check voltage between intake valve timing control solenoid valve terminal 2 and ground with CONSULT-II or tester.
   • Voltage: Battery voltage 
   Fig 2: Checking Voltage Between Intake Valve Timing Control Solenoid Valve Connector Terminal 2 And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

• OK: GO TO  3.
• NG: GO TO 2.

Check the following.

• Harness connectors E2, F32
• Harness connectors F67, F150
• Harness for open or short between intake valve timing control solenoid valve and IPDM E/R
• Harness for open or short between intake valve timing control solenoid valve and ECM
  • Repair harness or connectors.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 11 (bank 1) or 10 (bank 2) and intake valve timing control solenoid valve 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  5.
• NG: GO TO 4.

Check the following.

• Harness connectors F150, F67
• Harness for open and short between ECM and intake valve timing control solenoid valve
  • Repair open circuit or short to ground or short to power in harness or connectors.

Refer to COMPONENT INSPECTION .

OK or NG 

• OK: GO TO 6.
• NG: Replace intake valve timing control solenoid valve.

Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT .

For wiring diagram, refer to WIRING DIAGRAM  for CKP sensor (POS), WIRING DIAGRAM  and BANK 2  for CMP sensor (PHASE).

• : INSPECTION END