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Home >> Infiniti >> 2005 >> G35 x >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Control System - Coupe) >> DTC P0128: Thermostat Function >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK ENGINE COOLANT TEMPERATURE SENSOR 

    Refer to Component Inspection .

    OK or NG 

    1. OK: INSPECTION END 
    2. NG: Replace engine coolant temperature sensor.
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