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Home >> Infiniti >> 2017 >> QX70 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (2 Of 4) >> DTC/Circuit Diagnosis >> DTC P0125: ECT Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE:

If DTC P0125 is displayed with P0117 or P0118, first perform the trouble diagnosis for DTC P0117 or P0118. Refer to  DTC LOGIC  . 

DTC No. Trouble Diagnosis Name DTC Detecting Condition Possible Cause
P0125 Insufficient Engine Coolant Temperature for closed loop fuel control
  • Voltage sent to ECM from the Sensor is not practical, even when some time has passed after starting the engine.
  • Engine Coolant Temperature is insufficient for closed loop fuel control.
  • Harness or connectors

    (High resistance in the Circuit)

  • Engine Coolant Temperature Sensor
  • Thermostat