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Home >> Infiniti >> 2008 >> FX35 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS U1000 Through P0153 (VQ35DE) >> DTC P0128 Thermostat Function >> Diagnostic Procedure

Diagnostic Procedure

  1. CHECK ENGINE COOLANT TEMPERATURE SENSOR 

    Refer to "COMPONENT INSPECTION "

OK or NG 

OK: INSPECTION END 

NG: Replace engine coolant temperature sensor.

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