With GST

Disconnect hose from water separator.
Disconnect EVAP canister vent control valve harness connector.

Fig 1: Identifying EVAP Canister Vent Control Valve
Courtesy of NISSAN MOTOR CO., U.S.A.
Verify the following.

Fig 2: Inspecting Conditions Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Manually Activating EVAP Canister Vent Control Valve
Courtesy of NISSAN MOTOR CO., U.S.A.

If the result is NG, go to Diagnostic Procedure .

If the result is OK, go to "Diagnostic Procedure" for DTC P0442, see DIAGNOSTIC PROCEDURE .