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Home >> Nissan-Datsun >> 2003 >> Frontier Base, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0125: Engine Coolant Temperature Sensor >> Possible Causes

Possible Causes

Malfunction is detected when voltage sent to ECM from ECT sensor is not practical, even when some time has passed since starting engine; or engine coolant temperature is insufficient for closed loop fuel control. Possible causes are:

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