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Home >> Nissan-Datsun >> 2017 >> Maxima SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (2 Of 4) >> DTC/Circuit Diagnosis >> DTC P0125: ECT Sensor >> DTC Description >> DTC Detection Logic

DTC Detection Logic

  1. Voltage sent to ECM from the sensor is not practical, even when some time has passed after starting the engine.
  2. Engine coolant temperature is insufficient for closed loop fuel control.
DTC CONSULT screen terms
(Trouble diagnosis content)		 DTC detection condition
P0125 ECT SENSOR
(Insufficient coolant temperature for closed loop fuel control)		 1 Diagnosis condition -
Signal (terminal) Voltage signal transmitted from engine coolant temperature sensor to ECM
Threshold Voltage sent to ECM from the sensor is not practical, even when some time has passed after starting the engine
Diagnosis delay time -
2 Diagnosis condition -
Signal (terminal) Voltage signal transmitted from engine coolant temperature sensor to ECM
Threshold Engine coolant temperature is insufficient for closed loop fuel control
Diagnosis delay time -
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