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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 >> P0137 Ho2S2 >> DTC Description >> PR25DD engine >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: This page is about a different variant/trim than selected.
  1. INSPECTION START 

    Do you have CONSULT?

    Do you have CONSULT?

    YES

    GO TO 2.

    NO

    GO TO 5.

  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:

    For better results, perform "DTC WORK SUPPORT" at a temperature of 0 to 30 deg. C (32 to 86 deg. F).

    GO TO 3.

  3. PERFORM DTC CONFIRMATION PROCEDURE 

    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 normal operating temperature.
    3. Turn ignition switch OFF and wait at least 10 seconds.
    4. Start engine and keep the engine speed between 3, 500 and 4, 000 rpm for at least 1 minute under no load.
    5. Let engine idle for 1 minute.
    6. Make sure that "COOLAN TEMP/S" indicates more than 70 deg. C (158 deg. F).

      If not, warm up engine and go to next step when "COOLAN TEMP/S" indication reaches 70 deg. C (158 deg. F).

    7. Open engine hood.
    8. Select "HO2S2 (B1) P1147" of "HO2S2" in "DTC WORK SUPPORT" mode of "ENGINE" using CONSULT.
    9. Follow the instruction of CONSULT.
      NOTE: It will take at most 10 minutes until "COMPLETED" is displayed.
    10. Touch "SELF-DIAG RESULT".

    Which is displayed on CONSULT screen?

    OK

    INSPECTION END

    NG

    Refer to DTC Diagnosis Procedure .

    CAN NOT BE DIAGNOSED

    GO TO 4.

  4. PERFORM DTC CONFIRMATION PROCEDURE AGAIN 
    1. Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle).
    2. Perform DTC CONFIRMATION PROCEDURE again.

    GO TO 3.

  5. PERFORM COMPONENT FUNCTION CHECK 

    Perform component function check. Refer to Component Function Check .

    NOTE: Use component function check to check the overall function of the heated oxygen sensor 2 circuit. During this check, a 1st trip DTC might not be confirmed.

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Refer to DTC Diagnosis Procedure .