Diagnosis Procedure

CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten two ground screws on the body. Refer to "GROUND INSPECTION ".
  
  Fig 1: Identifying Air Cleaner Resonator And Body Ground Screws
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK : GO TO 2.

NG : Repair or replace ground connections.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR FOR WATER
1. Disconnect EVAP control system pressure sensor (2) harness connector.
  - EVAP canister vent control valve (1)
  - Drain filter (3)
  - EVAP canister (4)
  - <=: Vehicle front
2. Check sensor harness connector for water.
  
  Fig 2: Identifying EVAP Control System Pressure Sensor, Drain Filter And EVAP Canister
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Water should not exist .
OK or NG

OK : GO TO 3.

NG : Repair or replace harness connector.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to "COMPONENT INSPECTION ".

OK or NG

OK : GO TO 4.

NG : Replace EVAP control system pressure sensor.
CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".

INSPECTION END