Nissan Sentra B18 (2020-2025) Service Manual: P01f0 Engine Coolant Temperature

Nissan Sentra B18 (2020-2025) Service Manual / Engine / Work Procedure (After Replacing Electric Throttle Control Actuator) / Dtc/circuit Diagnosis / P01f0 Engine Coolant Temperature

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P01F0	Coolant temperature (Coolant temperature relapsed below diagnostic monitoring temperature)	Diagnosis condition	After engine warmed up Nissan Sentra Vehicle speed is more than 60km/h (37 MPH) and no fuel cut
		Signal (terminal)	Engine coolant temperature sensor signal
		Threshold	When the engine coolant temperature is lower than threshold value, after Nissan Sentra vehicle is driven at 60km/h (37 MPH) or more for certain period. Make sure that the engine is warmed up to normal operating temperature before driving. Make sure that the engine is warmed up to normal operating temperature before driving.
		Diagnosis delay time	40 seconds or more

POSSIBLE CAUSE

Thermostat
Engine coolant temperature sensor
Leakage from sealing portion of thermostat

FAIL-SAFE

Not applicable

Confirmation Procedure

Confirmation Procedure

CHECK DTC PRIORITY

If DTC P01F0 is displayed with DTC P0116, P0117, P0118, or P0128, first perform the trouble diagnosis for DTC P0116, P0117, P0118, or P0128.

Is other DTC detected?
YES >>
Perform diagnosis of applicable. Refer to DTC Index.
NO >>
GO TO 2.
PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>>
GO TO 3.
PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT
1. Start engine and warm it up to the normal operating temperature.
2. Maintain the hold Nissan Sentra vehicle speed at more than 60 km/h (37 MPH) for at least 40 consecutive seconds.
  
  CAUTION:
  
  Always drive Nissan Sentra vehicle in safe manner according to traffic conditions and obey all traffic laws.
  
  Note:
  Keeping the accelerator pedal as steady as possible at approximately more than 1/8.
Is DTC detected?
YES >>
Refer to DTC Diagnosis Procedure.
NO-1 >>
To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2 >>
Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

CHECK DTC PRIORITY

If DTC P01F0 is displayed with DTC P0116, P0117, P0118, or P0128, first perform the trouble diagnosis for DTC P0116, P0117, P0118, or P0128.

Is other DTC detected?
YES >>
Perform diagnosis of applicable. Refer to DTC Index.
NO >>
GO TO 2.
CHECK ENGINE COOLANT TEMPERATURE SENSOR

Check the engine coolant temperature sensor. Refer to Component Inspection.

Is the inspection result normal?
YES >>
GO TO 3.
NO >>
Replace engine coolant temperature sensor. Refer to Exploded View.
CHECK THERMOSTAT

Check the thermostat. Refer to Removal and Installation.

Is the inspection result normal?
YES >>
INSPECTION END
NO >>
Replace thermostat.

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