Diagnostic Procedure

CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground three screws on the body.
  
  Fig 1: Locating Ground Screws
  Courtesy of NISSAN MOTOR CO., U.S.A.
Refer to Ground Inspection .

OK or NG
1. OK >> GO TO 2.
2. NG >> Repair or replace ground connections.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR FOR WATER
1. Disconnect EVAP control system pressure sensor harness connector.
  
  Fig 2: Locating EVAP Control System Pressure Sensor
  Courtesy of NISSAN MOTOR CO., U.S.A.
2. Check sensor harness connector for water.
  1. Water should not exist.
OK or NG
1. OK >> GO TO 3.
2. NG >> Repair or replace harness connector.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to Component Inspection .

OK or NG
1. OK >> GO TO 4.
2. NG >> Replace EVAP control system pressure sensor.
CHECK INTERMITTENT INCIDENT
Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT .

For wiring diagram, refer to Wiring Diagram .
1. >>INSPECTION END