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HOMESERVICE MANUALSNISSAN-DATSUN2012SENTRA SE-RREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM - DTCS P0171 TO P0507 (QR25DE)DTC P0456: EVAP CONTROL SYSTEMDTC CONFIRMATION PROCEDURE
2012 Nissan-Datsun Sentra SE-R

DTC Confirmation Procedure

2012 Nissan-Datsun Sentra SE-RSECTION DTC Confirmation Procedure
NOTE:
  • If DTC P0456 is displayed with P0442, first perform trouble diagnosis for DTC P0456.
  • After repair, check that the hoses and clips are installed properly.
  • If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

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  .
    • Fuel filler cap is removed  .
    • Refilled or drained the fuel  .
    • EVAP component parts is/are removed  .
  • Before performing the following procedure, confirm that battery voltage is more than 11 V at idle  .

WITH CONSULT

  1. Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT.
  2. Check that the following conditions are met.

    FUEL LEVEL SE: 0.25 - 1.4 V 

    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 refill/drain fuel until the output voltage 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.

    Follow the instruction displayed.

  6. Check that "OK" is displayed.

If "NG" is displayed, refer to "DIAGNOSIS PROCEDURE ".

NOTE: If the engine speed cannot be maintained within the range displayed on CONSULT screen, go to "BASIC INSPECTION ".
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.