Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect intake valve timing control solenoid valve harness connector.
Turn ignition switch ON.
Check the voltage between intake valve timing (IVT) control solenoid valve harness connector and ground with CONSULT-III or tester.

TERMINAL CONNECTOR REFERENCE CHART

DTC	IVT control solenoid valve			Ground	Voltage
	Bank	Connector	Terminal
P0075	1	F67	2	Ground	Battery voltage
P0081	2	F66	2

Fig 1: Checking Voltage Between Intake Valve Timing (IVT) Control Solenoid Valve Harness Connector And Ground

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

Is the inspection result normal?

YES: GO TO 2.

NO: Repair open circuit, short to ground or short to power in harness or connectors.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

Turn ignition switch OFF.
Disconnect ECM harness connector.

Check the continuity between intake valve timing control solenoid valve harness connector and ECM harness connector.

TERMINAL CONNECTOR REFERENCE CHART

DTC	IVT control solenoid valve			ECM		Continuity
DTC	Bank	Connector	Terminal	Connector	Terminal	Continuity
P0075	1	F67	1	F13	78	Existed
P0081	2	F66	1	F13	75	Existed

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

Is the inspection result normal?

YES: GO TO 3.

NO: Repair open circuit, short to ground or short to power in harness or connectors.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to "COMPONENT INSPECTION ".

Is the inspection result normal?

YES: GO TO 4.

NO: Replace malfunctioning intake valve timing control solenoid valve.
CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".

: INSPECTION END