1.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.
3. Turn ignition switch ON.
4. Check the voltage between intake valve timing (IVT) control solenoid valve harness connector and ground.

   DTC | IVT control solenoid valve | Ground | Voltage
   Bank | Connector | Terminal
   P0075 | 1 | F33 | 2 | Ground | Battery voltage
   P0081 | 2 | F32 | 2

Is the inspection result normal?
YES>>GO TO 3.
NO>>GO TO 2.
2.DETECT MALFUNCTIONING PART
Check the following.

- Harness connectors E3, F1
- Harness for open or short between intake valve timing control solenoid valve and IPDM E/R

>>Repair open circuit, short to ground or short to power in harness or connectors.
3.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 the continuity between intake valve timing (IVT) control solenoid valve harness connector and ECM harness connector.

   DTC | IVT control solenoid valve | ECM | Continuity
   Bank | Connector | Terminal | Connector | Terminal
   P0075 | 1 | F33 | 1 | F101 | 52 | Existed
   P0081 | 2 | F32 | 1 | 51

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

Is the inspection result normal?
YES>>GO TO 4.
NO>>Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to Component Inspection (GT-R certified NISSAN dealer).
Is the inspection result normal?
YES>>GO TO 5.
NO>>Replace malfunctioning intake valve timing control solenoid valve.
5.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END