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 VIAS CONTROL SOLENOID VALVE 1 POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect VIAS control solenoid valve 1 harness connector.
Turn ignition switch ON.

Check the voltage between VIAS control solenoid valve 1 harness connector and ground.

VOLTAGE SPECIFICATION

VIAS control solenoid valve 1		Ground	Voltage
Connector	Terminal
F63	1	Ground	Battery voltage

Fig 1: Checking Voltage Between EOT Sensor 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 VIAS CONTROL SOLENOID VALVE 1 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

Turn ignition switch OFF.
Disconnect ECM harness connector.

Check the continuity between VIAS control solenoid valve 1 harness connector and ECM harness connector.

CONTINUITY CHART

VIAS control solenoid valve 1		ECM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
F63	2	F14	27	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 VIAS CONTROL SOLENOID VALVE 1
Refer to "COMPONENT INSPECTION ".

Is the inspection result normal?

YES: GO TO 4.

NO: Replace VIAS control solenoid valve 1.
CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".

: INSPECTION END