Diagnostic Procedure

1. Turn ignition switch OFF.
2. Loosen and retighten two ground screws on the body. Refer to , "GROUND INSPECTION ".

Fig 1: Checking Ground Connections

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

OK or NG 

OK: GO TO  2.

NG: Repair or replace ground connections.

1. Disconnect EVAP control system pressure sensor (3) harness connector.
   • Illustration shows the view from under the vehicle.
   • <-: Vehicle front
   • EVAP canister vent control valve (1)
   • EVAP canister (2)
2. Check sensor harness connector for water.

   Water should not exist. 

OK or NG 

OK: GO TO  3.

NG: Repair or replace harness connector.

Fig 2: Identifying EVAP Canister Vent Control Valve

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

Refer to , "COMPONENT INSPECTION ".

OK or NG 

OK: GO TO  4.

NG: Replace EVAP control system pressure sensor.

Refer to , "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

For Wiring Diagram, refer to , "WIRING DIAGRAM ".

: INSPECTION END