Nissan Altima 2007-2012 Service Manual: P0460 fuel level sensor

Description

The fuel level sensor is mounted in the fuel level sensor unit.

The sensor detects a fuel level in the fuel tank and transmits a signal to the combination meter. The combination meter sends the fuel level sensor signal to the ECM through CAN communication line.

It consists of two parts, one is mechanical float and the other is variable resistor. Fuel level sensor output voltage changes depending on the movement of the fuel mechanical float.

DTC Logic

DTC DETECTION LOGIC

NOTE: • If DTC P0460 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.

• If DTC P0460 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer to EC-361, "DTC Logic".

When the vehicle is parked, naturally the fuel level in the fuel tank is stable. It means that output signal of the fuel level sensor does not change. If ECM senses sloshing signal from the sensor, fuel level sensor malfunction is detected.

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.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

1. Start engine and wait maximum of 2 consecutive minutes.

2. Check 1st trip DTC.

Is 1st trip DTC detected? YES >> Go to EC-343, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK COMBINATION METER FUNCTION

Refer to MWI-46, "Component Function Check".

Is the inspection result normal? YES >> GO TO 2.

NO >> Go to EC-343, "Diagnosis Procedure".

2.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident".

>> INSPECTION END

    P0456 evap control system
    DTC Logic DTC DETECTION LOGIC This diagnosis detects very small leaks in the EVAP line between fuel tank and EVAP canister purge volume control solenoid valve, using the intake manifold vacuum in ...

    P0461 fuel level sensor
    Description The fuel level sensor is mounted in the fuel level sensor unit. The sensor detects a fuel level in the fuel tank and transmits a signal to the combination meter. The combination me ...

    Other materials:

    Power steering oil pump
    QR25DE : Disassembly and Assembly The power steering oil pump and pulley is not serviceable and should be replaced as an assembly. For front and rear bracket removal, refer to ST-19, "QR25DE : Removal and Installation". VQ35DE : Disassembly and Assembly The power steering oil pump an ...

    Mixture ratio self-learning value clear
    Description This describes how to erase the mixture ratio self-learning value. For the actual procedure, follow the instructions in “Diagnosis Procedure”. Special Repair Requirement 1.START 1. Start engine and warm it up to normal operating temperature. 2. Select “SELF-LEARNING CO ...

    P0840 transmission fluid pressure sensor A (sec pressure sensor)
    Description The transmission fluid pressure sensor A (secondary pressure sensor) detects secondary pressure of CVT and sends TCM the signal. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE NOTE: If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ign ...