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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 >> P0125 ECT Sensor >> 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 P0125 is displayed with P0116, P0117 or P0118, first perform the trouble diagnosis for DTC P0116, P0117 or P0118.

    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.

    GO TO 3.

  3. CHECK ENGINE COOLANT TEMPERATURE SENSOR FUNCTION 

    SYMBOL With CONSULT

    1. Turn ignition switch ON.
    2. Select "DATA MONITOR" mode of "ENGINE" using CONSULT.
    3. Check that "COOLAN TEMP/S" is above 10 deg. C (50 deg. F).

    SYMBOL With GST

    Follow the procedure "With CONSULT" above.

    Is it above 5 deg. C (41 deg. F)?

    YES

    INSPECTION END

    NO

    GO TO 4.

  4. PERFORM DTC CONFIRMATION PROCEDURE 

    SYMBOL With CONSULT

    1. Start engine and run it for 65 minutes at idle speed.
    2. Check 1st tip DTC.

    If "COOLAN TEMP/S" indication increases to more than 10 deg. C (50 deg. F) within 65 minutes, stop engine because the test result will be OK.

    CAUTION: Be careful not to overheat engine.

    SYMBOL With GST

    Follow the procedure "With CONSULT" above.

    Is 1st trip DTC detected?

    YES

    Proceed to DTC Diagnosis Procedure 

    NO

    INSPECTION END

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