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Home >> Infiniti >> 2010 >> M45 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0171 To P0456 >> DTC P0456 EVAP Control System >> DTC Confirmation Procedure
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DTC Confirmation Procedure

NOTE:
  • If DTC P0456 is displayed with P0442, first perform the 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 perform the following procedure before conducting the next test.
  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION: 

WITH CONSULT-III

  1. Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT-III.
  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 "EVAP V/S LEAK P0456/P1456" of "EVAPORATIVE SYSTEM" in "DTC WORK SUPPORT" mode with CONSULT-III.

    Follow the instructions displayed.

  6. Check that "OK" is displayed.

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

NOTE:
  • If the engine speed cannot be maintained within the range displayed on CONSULT-III screen, go to "BASIC INSPECTION ".
  • Check that EVAP hoses are connected to EVAP canister purge volume control solenoid valve properly.