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Home >> Infiniti >> 2006 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U1000 To P0159 >> DTC P0128 Thermostat Function >> Diagnostic Procedure
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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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