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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Control System (DTC/Circuit Diagnosis) (Pr25DD) (4 Of 4)) >> DTC/Circuit Diagnosis >> P219A Air Fuel Ratio >> 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 P219A is displayed with other DTC, first perform the trouble diagnosis for the other DTC.

    Is applicable DTC detected?

    YES

    Perform diagnosis of applicable. Refer to DTC Index .

    NO

    GO TO 2.

  2. PRECONDITIONING-1 

    If DTC Confirmation Procedure has been previously conducted, always perform the following 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.
    NOTE: Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.

    GO TO 3.

  3. PRECONDITIONING-2 
    1. Turn ignition switch ON.
    2. Clear the mixture ratio self-learning value. Refer to Work Procedure .

    Will CONSULT be used?

    YES

    GO TO 4.

    NO

    GO TO 7.

  4. PERFORM DTC CONFIRMATION PROCEDURE-1 
    1. Turn ignition switch ON.
    2. Select "COOLAN TEMP/S" in "DATA MONITOR" mode of "ENGINE" using CONSULT.
    3. Start engine.
    4. Make sure that "COOLAN TEMP/S" indicates more than 80 deg. C (176 deg. F).

    GO TO 5.

  5. PERFORM DTC CONFIRMATION PROCEDURE-2 

    SYMBOL With CONSULT

    1. Select "SYSTEM 1 DIAGNOSIS B B1" and "SYSTEM 1 DIAGNOSIS A B1" in "DATA MONITOR" mode of "ENGINE" using CONSULT.
    2. Drive vehicle under the following conditions for at least 5 consecutive seconds.
      CAUTION:
      • Always drive vehicle at a safe speed.

      ENG SPEED

      1, 000 - 1, 250rpm

      COOLAN TEMP/S

      More than 80 deg. C (176 deg. F)

      B/FUEL SCHDL

      4 - 7 ms

      Selector lever

      D position

      SYSTEM 1 DIAGNOSIS B B1

      PRSENT
      NOTE:
      • Drive the vehicle at approximately 88 km/h (55MPH) allows easy diagnosis.
      • Keep the accelerator pedal as possible during cruising.
    3. Check "SYSTEM 1 DIAGNOSIS A B1" indication.

    Is "CMPLT" displayed?

    YES

    GO TO 6.

    NO

    GO TO 3.

  6. PERFORM DTC CONFIRMATION PROCEDURE-3 

    Check 1st trip DTC.

    Is 1st trip DTC detected?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    INSPECTION END

  7. PERFORM DTC CONFIRMATION PROCEDURE-4 

    SYMBOL Without CONSULT

    1. Start the engine and warm it up to normal operating temperature.
    2. Drive vehicle under the following conditions for at least 5 consecutive seconds.
      CAUTION:
      • Always drive vehicle at a safe speed.

      Engine speed

      1, 000 - 1, 250 rpm

      Calculated load value

      26 - 35 %

      Selector lever

      D position
      NOTE:
      • Drive the vehicle at approximately 88 km/h (55MPH) allows easy diagnosis.
      • Keep the accelerator pedal as possible during cruising.
    3. Check 1st trip DTC.

    Is 1st trip DTC detected?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    INSPECTION END

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