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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

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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