DTC DETECTION LOGIC

NOTE:
If DTC P0125 is displayed with P0117 or P0118, first perform the trouble diagnosis for DTC P0117, P0118. Refer to DTC Logic (GT-R certified NISSAN dealer).

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

 
 DTC CONFIRMATION PROCEDURE

 
 1.PRECONDITIONING
 
 2.CHECK ENGINE COOLANT TEMPERATURE SENSOR FUNCTION
 
 3.PERFORM DTC CONFIRMATION PROCEDURE