Nissan Sentra Service Manual: 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. |
|
| 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:
System description
DESCRIPTION
Engine Cooling System Schematic
CVT Models
Radiator
Water inlet
Reservoir tank
Thermostat
Engine oil cooler
Thermostat housing
Water pump
Cylinder head
Cylinder block
Water control valve
Water outlet
Heater
Electric throttle control actuator
CVT oil wa ...
Moonroof switch
Description
Transmits switch operation signal to moonroof motor assembly.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to RF-13, "Wiring Diagram".
1.Check moonroof switch input signal
Turn ignition switch on.
Check voltage between moonroof motor assembly harne ...
Parking brake switch signal circuit
Component function check
1.Check parking brake switch operation
Check that brake warning lamp in combination meter turns on/off when parking
brake is actuated.
Is the inspection result normal?
Yes >> inspection end.
No >> proceed to diagnosis procedure. Refer to mwi-60, " ...