Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Nissan-Datsun >> 2012 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0159 (Qr25DE) >> DTC P0128: Thermostat Function >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK ENGINE COOLANT TEMPERATURE SENSOR

    Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK: GO TO 2.

    NG: Replace engine coolant temperature sensor. Refer to , "COMPONENT ".

  2. CHECK THERMOSTAT

    Refer to , "REMOVAL AND INSTALLATION ".

    OK or NG 

    OK: INSPECTION END 

    NG: Replace thermostat. Refer to , "REMOVAL AND INSTALLATION ".

scientia non olet · About Mike's Workshop Manuals