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Home >> Infiniti >> 2021 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (1 Of 5) >> Engine (ECM) >> DTC P0125: ECT Sensor >> Confirmation Procedure
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Confirmation Procedure

FOR USA AND CANADA 

  1. PRECONDITIONING 
    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 2.

  2. CHECK ENGINE COOLANT TEMPERATURE SENSOR 1 FUNCTION 

    SYMBOL WITH CONSULT

    1. Turn ignition switch ON.
    2. Select "DATA MONITOR" mode with CONSULT.
    3. Check that "COOLAN TEMP/S" is above -10 deg.C (14 deg.F).

    SYMBOL WITH GST

    Follow the procedure "With CONSULT" above.

    Is the temperature above -10 deg.C (14 deg.F)?

    YES

    INSPECTION END

    NO

    GO TO 3.

  3. PERFORM DTC CONFIRMATION PROCEDURE 

    SYMBOL WITH CONSULT

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

      If "COOLAN TEMP/S" increases to more than -10 deg.C (14 deg.F) within 65 minutes, stop engine because the test result will be OK.

      CAUTION: Never overheat engine.
    2. Check 1st trip DTC.

    SYMBOL WITH GST

    Follow the procedure "With CONSULT" above.

    Is 1st trip DTC detected?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    INSPECTION END

EXCEPT FOR USA AND CANADA 

  1. PRECONDITIONING 
    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 2.

  2. CHECK ENGINE COOLANT TEMPERATURE SENSOR 1 FUNCTION 

    SYMBOL WITH CONSULT

    1. Turn ignition switch ON.
    2. Select "DATA MONITOR" mode with 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 the temperature above 10 deg.C (50 deg.F)?

    YES

    INSPECTION END

    NO

    GO TO 3.

  3. PERFORM DTC CONFIRMATION PROCEDURE 

    SYMBOL WITH CONSULT

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

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

      CAUTION: Never overheat engine.
    2. Check 1st trip DTC.

    SYMBOL WITH GST

    Follow the procedure "With CONSULT" above.

    Is 1st trip DTC detected?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    INSPECTION END