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Home >> Infiniti >> 2013 >> M56 x >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0183 >> DTC P0125: ECT Sensor >> Diagnosis Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Diagnosis Procedure

  1. CHECK ENGINE COOLANT TEMPERATURE SENSOR 

    Refer to "COMPONENT INSPECTION (ENGINE COOLANT TEMPERATURE SENSOR) ".

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Replace engine coolant temperature sensor. Refer to "EXPLODED VIEW ".

  2. CHECK THERMOSTAT OPERATION 

    When the engine is cold [lower than 70°C (158°F)] condition, grasp lower radiator hose and confirm that the engine coolant does not flow.

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: Repair or replace thermostat. Refer to "REMOVAL AND INSTALLATION ".

  3. CHECK INTERMITTENT INCIDENT 

    Refer to "INTERMITTENT INCIDENT ".

    : INSPECTION END

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