Testing Condition:

• Open engine hood before conducting following procedure. 
• If any of following conditions are met just before the DTC confirmation procedure, leave the vehicle for more than 1 hour. 
  1. Fuel filler cap is removed. 
  2. Refilled or drained the fuel. 
  3. EVAP component parts is/are removed. 
• Before performing the following procedure, confirm that battery voltage is more than 11V at idle. 

With CONSULT-II 

1. Turn ignition switch ON and select DATA MONITOR mode with CONSULT-II.
2. Make sure the following conditions are met.

   FUEL LEVEL SE: 1.08 - 0.2V 

   COOLAN TEMP/S: 0 - 32° C (32 - 90° F) 

   FUEL T/TMP SE: 0 - 35° C (32 - 95° F) 

   INT A/TEMP SE: More than 0° C (32° F) 

   If NG, turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle) or refilling/draining fuel until the output voltage condition of the FUEL LEVEL SE meets within the range above and leave the vehicle for more than 1 hour. Then start from step 1).

3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
5. Select EVP V/S LEAK P0456/P1456 of EVAPORATIVE SYSTEM in DTC WORK SUPPORT mode with CONSULT-II.
   Fig 1: Displaying CONSULT-II EVAP V/S LEAK P0456/P1456 Screen

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

   Follow the instruction displayed.

   Fig 2: Displaying CONSULT-II EVAP V/S LEAK P0456/P1456 Maintain Screen

   Courtesy of NISSAN MOTOR CO., U.S.A.
6. Make sure that OK is displayed.
   Fig 3: Displaying CONSULT-II EVAP V/S LEAK P0456/P1456 OK Screen

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

   If NG is displayed, refer to DIAGNOSTIC PROCEDURE  .

   NOTE:

   • If the engine speed cannot be maintained within the range displayed on CONSULT-II screen, go to BASIC INSPECTION  .
   • Make sure that EVAP hoses are connected to EVAP canister purge volume control solenoid valve properly.
   Fig 4: Checking Overall Function Of EVAP Very Small Leak Function

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