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Home >> Infiniti >> 2014 >> Q50 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P015D (Except Hybrid) >> DTC P0125: ECT Sensor >> DTC Description >> DTC Confirmation Procedure

DTC Confirmation Procedure

  1. CHECK DTC PRIORITY 

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

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

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

      YES: INSPECTION END

      NO: GO TO 4.

  4. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Start engine and run it for 65 minutes at idle speed.

      If "COOLAN TEMP/S" increases to more than -10°C (14°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 1st trip DTC detected? 

      YES: "DIAGNOSIS PROCEDURE "

      NO: INSPECTION END