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Home >> Infiniti >> 2011 >> FX35 RWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (VQ35HR) - FX35 - DTC U0101, U0164, U1001, & P0011 Through P0133 / P0153 >> DTC P0128: Thermostat Function >> Diagnosis Procedure

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. Refer to "EXPLODED VIEW ".