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Home >> Nissan-Datsun >> 2017 >> Maxima SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (2 Of 4) >> DTC/Circuit Diagnosis >> DTC P0125: ECT Sensor >> DTC Description >> DTC Confirmation Procedure

DTC Confirmation Procedure

  1. CHECK DTC PRIORITY

    If DTC P00125 is displayed with DTC P0116, P0117 or P0118, first perform the trouble diagnosis for DTC P0116, P0117 or P0118.

    Is applicable DTC detected?

    YES 

    Perform diagnosis of applicable.

    NO 

    GO TO STEP 2  .

  2. PRECONDITIONING

    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.

    GO TO STEP 3. 

  3. CHECK ENGINE COOLANT TEMPERATURE SENSOR FUNCTION

    G-20With CONSULT 

    1. Turn ignition switch ON.
    2. Select "DATA MONITOR" mode with CONSULT.
    3. Check that "COOLANT TEMP/S" is above - 7°C (19.4°F).

    NSM020With GST 

    Follow the procedure "With CONSULT" above.

    Is the temperature above 10°C (50°F)?

    YES 

    INSPECTION END

    NO 

    GO TO STEP 4. 

  4. PERFORM DTC CONFIRMATION PROCEDURE

    G-20With CONSULT 

    1. Start engine and run it for 65 minutes at idle speed.

      If "COOLANT TEMP/S" increases to more than - 7°C (19.4°F) within 65 minutes, stop engine because the test result will be OK. 

      CAUTION:

      Never overheat engine.

    2. Check 1st trip DTC.

    NSM020With GST 

    Follow the procedure "With CONSULT" above.

    Is 1st trip DTC detected?

    YES 

    DIAGNOSIS PROCEDURE 

    NO - 1 

    To check malfunction symptom before repair: Refer to INTERMITTENT INCIDENT .

    NO - 2 

    Confirmation after repair: INSPECTION END