Nissan Sentra Service Manual: P0462, P0463 Fuel level sensor

Nissan Sentra Service Manual / Engine / Engine control system / Dtc/circuit diagnosis / P0462, P0463 Fuel level sensor

DTC Logic

DTC DETECTION LOGIC

NOTE:

If DTC P0462 or P0463 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
If DTC P0462 or P0463 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer to EC-350, "DTC Logic".

This diagnosis indicates the former, to detect open or short circuit malfunction.

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detecting condition	Possible cause
P0462	FUEL LEVL SEN/CIRC (Fuel level sensor ″A″ circuit low)	An excessively low voltage from the sensor is sent to ECM.	Harness or connectors (The CAN communication line is open or shorted) Harness or connectors (The sensor circuit is open or shorted) Combination meter Fuel level sensor
P0463	FUEL LEVL SEN/CIRC (Fuel level sensor ″A″ circuit high)	An excessively high voltage from the sensor is sent to ECM.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is between 11 V and 16 V at ignition switch ON.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

Turn ignition switch ON and wait at least 5 seconds.
Check 1st trip DTC.

Is 1st trip DTC detected? YES >> Proceed to EC-329, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK COMBINATION METER FUNCTION

Refer to MWI-17, "CONSULT Function (METER/M&A)".

Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".

NO >> Proceed to MWI-58, "Component Function Check".

P0461 Fuel level sensor

DTC Logic DTC DETECTION LOGIC NOTE: If DTC P0461 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX. If DTC P0461 is displayed with DTC P0607, first perform the ...

P0500 VSS

EXCEPT FOR M/T MODELS EXCEPT FOR M/T MODELS : Description ECM receives vehicle speed signals from two different paths via CAN communication line: One is from the ABS actuator and electric unit (c ...

Other materials:

Manual transmission (if so equipped)
WARNING Do not downshift abruptly on slippery roads. This may cause a loss of control. Do not over-rev the engine when shifting to a lower gear. This may cause a loss of control or engine damage. Do not shift to the N (Neutral) position while driving. Doing so may ...

Heater operation
This mode is used to direct heated air to the foot outlets. Some air also flows from the defrost outlets and the side vent outlets. Press the button to the OFF position for normal heating. Press the air flow control button. Turn the fan control dial to the desired position. Tur ...

Combination switch
Exploded view Combination switch Combination switch harness connector Front NOTE: Shown with the steering wheel removed for clarity only. Removal and installation REMOVAL CAUTION: Before servicing, turn the ignition switch OFF, disconnect both battery terminals and wait at l ...