2021 Infiniti Q60 Luxe, AWDFACTORY OEM SERVICE PROCEDURE

Confirmation Procedure

  1. CHECK DTC PRIORITY 

    If DTC P0125 is displayed with DTC P0117 or P0118, first perform the confirmation procedure (trouble diagnosis) for DTC P0117 or P0118.

    Is DTC P0117 or P0118 detected?

    YES

    Perform diagnosis of applicable.

    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. On CONSULT screen, select "ENGINE">>"Data Monitor".
    3. Check that "COOLAN TEMP/S" is above -10 deg.C (14 deg.F).

    Is the temperature above -10 deg.C (14 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.

      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: Be careful not to overheat engine.
    2. Check 1st trip DTC.

    Is DTC P0125 detected?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    To check malfunction symptom before repair: Refer to Inspection .

    NO

    Confirmation after repair: INSPECTION END

Chapter Navigation
Return to Chapter: DTC P0125: ECT Sensor
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.