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Home >> Infiniti >> 2012 >> EX35 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 Through P0128 >> DTC P0128: Thermostat Function >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK ENGINE COOLANT TEMPERATURE SENSOR

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Replace engine coolant temperature sensor.

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