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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 40 (Engine Control System (DTC/Circuit Diagnosis) (VQ35DE) (Except Hybrid) (1 Of 3)) >> DTC/Circuit Diagnosis >> DTC P0125: ECT Sensor >> DTC Logic >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

  1. 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 2. 

  2. 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 10°C (50°F).

    NSM020With GST 

    Follow the procedure "With CONSULT" above.

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

    YES 

    INSPECTION END

    NO 

    GO TO STEP 3. 

  3. 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 10°C (50°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 

    INSPECTION END

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