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Home >> Nissan-Datsun >> 2004 >> Maxima SL, RE4F04B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC >> DTC P0125: ECT Sensor >> Diagnostic Procedure >> 2. Check Thermostat Operation

2. Check Thermostat Operation

When the engine is cold [lower than 70°C (158°F)] condition, grasp lower radiator hose and confirm the engine coolant does not flow.

OK or NG 

  1. OK: GO TO 3.
  2. NG: Repair or replace thermostat. Refer to THERMOSTAT AND THERMOSTAT HOUSING .
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