1. Check VIAS Control Solenoid Valve Power Supply Circuit

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

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

Fig 1: Disconnect VIAS Control Solenoid Valve Harness Connector
Courtesy of NISSAN MOTOR CO., U.S.A.
Check voltage between terminal 1 and ground with CONSULT-II or tester.
1. Voltage: Battery voltage

OK or NG

OK: GO TO 3 .
NG: GO TO 2.

Fig 2: Check Voltage

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