Diagnosis Procedure

1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.

   Refer to "GROUND INSPECTION ".

   Fig 1: Identifying Ground Screws On Body

   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 harness connector.
   Fig 2: Identifying EVAP Canister Vent Control Valve And EVAP Control System Pressure Sensor

   Courtesy of NISSAN MOTOR CO., U.S.A.
2. Check sensor harness connector for water.

   Water should not exist. 

   OK or NG 

   OK: GO TO 3.

   NG: Repair or replace harness connector.

Refer to "COMPONENT INSPECTION ".

OK or NG 

OK: GO TO 4.

NG: Replace EVAP control system pressure sensor.

Refer to "HOW TO CHECK TERMINAL " and "INTERMITTENT INCIDENT ".

For wiring diagram, refer to "DIAGNOSIS PROCEDURE ".

INSPECTION END