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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Control System (DTC/Circuit Diagnosis) (Pr25DD) (1 Of 4)) >> DTC/Circuit Diagnosis >> P0014 EVT Control >> DTC Description >> PR25DD engine >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK DTC PRIORITY 

    If DTC P0014 is displayed with DTC P0078, first perform the trouble diagnosis for DTC P0078.

    Is applicable DTC detected?

    YES

    Perform diagnosis of applicable. Refer to DTC Index .

    NO

    GO TO 2.

  2. PRECONDITIONING 

    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:

    Before performing the following procedure, confirm that battery voltage is between 10 V and 16 V at idle.

    GO TO 3.

  3. PERFORM DTC CONFIRMATION PROCEDURE-1 

    SYMBOL With CONSULT

    1. Turn ignition switch ON and select "DATA MONITOR" mode of "ENGINE" using CONSULT.
    2. Start engine and warm it up to the normal operating temperature.
    3. Maintain the following conditions for at least 6 consecutive seconds. Hold the accelerator pedal as steady as possible.

      ENG SPEED

      1, 200 - 2, 000 rpm (A constant rotation is maintained.)

      COOLAN TEMP/S

      More than 60 deg. C (140 deg. F)

      Selector lever

      P or N position

    4. Let engine idle for 10 seconds.
    5. Check 1st trip DTC.

    SYMBOL With GST

    Follow the procedure "With CONSULT" above.

    Is 1st trip DTC detected?

    YES

    Proceed to DTC Diagnosis Procedure .

    NO

    GO TO 4.

  4. PERFORM DTC CONFIRMATION PROCEDURE-2 

    SYMBOL With CONSULT

    1. Select "DATA MONITOR" mode of "ENGINE" using CONSULT.
    2. Maintain the following conditions for at least 20 consecutive seconds.

      ENG SPEED

      1, 700 - 2, 950 rpm (A constant rotation is maintained.)

      COOLAN TEMP/S

      More than 70 deg. C (158 deg. F)

      Selector lever

      D position

      Driving location uphill

      Driving vehicle uphill

      (Increased engine load will help maintain the driving conditions required for this test.)

      CAUTION: Always drive at a safe speed.
    3. Check 1st trip DTC.

    SYMBOL With GST

    Follow the procedure "With CONSULT" above.

    Is 1st trip DTC detected?

    YES

    Proceed to DTC Diagnosis Procedure .

    NO

    INSPECTION END