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Home >> Infiniti >> 2004 >> G35 x >> Repair and Diagnosis >> Engine Performance >> System >> 2004 - Engine Control System - Sedan >> Trouble Diagnosis >> DTC P0455: EVAP Control System >> DTC Confirmation Procedure >> Testing Condition:
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Testing Condition:

With CONSULT-II 

  1. Tighten fuel filler cap securely until reattaching sound is heard.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.
  4. Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT-II.
  5. Make sure that the following conditions are met.

    COOLAN TEMP/S: 0 - 70°C (32 - 158°F) 

    INT/A TEMP SE: 0 - 60°C (32 - 140°F) 

  6. Select "EVAP SML LEAK P0442/P1442" of "EVAPORATIVE SYSTEM" in "DTC WORK SUPPORT" mode with CONSULT-II.

    Follow the instruction displayed.

    Fig 1: CONSULT-II Testing Sequence Screen Display
    G00732479Courtesy of NISSAN MOTOR CO., U.S.A.
    NOTE: If the engine speed cannot be maintained within the range displayed on the CONSULT-II screen, go to Basic Inspection .
  7. Make sure that "OK" is displayed.

    If "NG" is displayed, select "SELF-DIAG RESULTS" mode and make sure that "EVAP GROSS LEAK [P0455]" is displayed. If it is displayed, Refer to Diagnostic Procedure .

    If P0442 is displayed, perform "Diagnostic Procedure" for DTC P0442 Diagnostic Procedure .

Fig 2: CONSULT-II OK Screen Display
G00732480Courtesy of NISSAN MOTOR CO., U.S.A.

WITH GST 

NOTE: Be sure to read the explanation of Driving Pattern  before driving vehicle.
  1. Start engine.
  2. Drive vehicle according to Driving Pattern .
  3. Stop vehicle.
  4. Select "MODE 1" with GST.
    • If SRT of EVAP system is not set yet, go to the following step.
    • If SRT of EVAP system is set, the result will be OK.
  5. Turn ignition switch OFF and wait at least 10 seconds.
  6. Start engine.

    It is not necessary to cool engine down before driving. 

  7. Drive vehicle again according to Driving Pattern .
  8. Stop vehicle.
  9. Select "MODE 3" with GST.
    • If P0455 is displayed on the screen, go to Diagnostic Procedure .
    • If P0442 is displayed on the screen, go to Diagnostic Procedure, for DTC P0442, Diagnostic Procedure .
    • If P0441 is displayed on the screen, go to Diagnostic Procedure for DTC P0441, Diagnostic Procedure .
    • If P0455, P0441, P0442 are not displayed on the screen, go to the following step.
  10. Select "MODE 1" with GST.
    • If SRT of EVAP system is set, the result will be OK.
    • If SRT of EVAP system is not set, go to step  6.