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Home >> Infiniti >> 2004 >> FX45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P0128 Thermostat Function >> Diagnostic Procedure

Diagnostic Procedure

  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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