With GST

Check air passage continuity and operation delay time under the following conditions.

VIAS CONTROL SOLENOID VALVE AIR PASSAGE CONTINUITY

Condition VIAS SOL VALVE	Air passage continuity between A and B	Air passage continuity between A and C
12V direct current supply between terminals 1 and 2	Yes	No
No supply	No	Yes

Operation takes less than 1 second.

Fig 1: Checking VIAS Control Solenoid Valve Air Passage Continuity

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