Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CHECK ENGINE OIL PRESSURE CONTROL SOLENOID VALVE POWER SUPPLY

Turn ignition switch OFF.
Disconnect engine oil pressure control solenoid valve harness connector.
Turn ignition switch ON.

Check the voltage between engine oil pressure control solenoid valve harness connector and ground.

+		-	Voltage
Engine oil pressure control solenoid valve
Connector	Terminal
F90	1	Ground	Battery voltage

Is the inspection result normal?

YES

GO TO 2.

Perform the trouble diagnosis for power supply circuit.

CHECK ENGINE OIL PRESSURE CONTROL SOLENOID VALVE INPUT SIGNAL CIRCUIT

Turn ignition switch OFF.
Disconnect ECM harness connector.

Check the continuity between engine oil pressure control solenoid valve harness connector and ECM harness connector.

Engine oil pressure control solenoid valve		ECM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
F90	2	F79	142	Existed

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

Is the inspection result normal?

YES

GO TO 3.

Repair or replace error-detected parts.

CHECK ENGINE OIL PRESSURE CONTROL SOLENOID VALVE
Check the engine oil pressure control solenoid valve. Refer to Component Inspection (Engine Oil Pressure Control Solenoid Valve) .

Is the inspection result normal?

YES

INSPECTION END

NO

Replace engine oil pressure control solenoid valve. Refer to Exploded View .