Diagnostic Procedure

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect intake valve timing control solenoid valve harness connector.
  
  Fig 1: Disconnecting 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.
  
  Fig 2: Checking Voltage Between Intake Valve Timing Control Solenoid Valve Terminal 2 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  - Voltage: Battery voltage
OK or NG
- OK: GO TO 3.
- NG: GO TO 2.
DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors E5, F14
- Harness connectors F44, F101
- IPDM E/R harness connector E122
- 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.
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 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.
DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors F44, F101
- Harness for open and short between intake valve timing control solenoid valve and ECM
- : Repair open circuit or short to ground or short to power in harness or connectors.
CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to "COMPONENT INSPECTION ".

OK or NG
- OK: GO TO 6.
- NG: Replace intake valve timing control solenoid valve.
CHECK INTERMITTENT INCIDENT
Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".
- : INSPECTION END