Diagnostic Procedure

CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
  Refer to "GROUND INSPECTION ".
  
  Fig 1: Checking Ground Connections
  Courtesy of NISSAN NORTH AMERICA, INC.
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 harness connector.
  
  Fig 2: Applying Battery Voltage Between Terminals Of EVAP Canister Vent Control Valve
  Courtesy of NISSAN NORTH AMERICA, INC.
2. Check sensor harness connector for water.
  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 "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

For wiring diagram, refer to "WIRING DIAGRAM ".

INSPECTION END