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-866, "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-848, "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 MWI-46, "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
met ...
Other materials:
Compass display (if so equipped)
This unit measures terrestrial magnetism and indicates
the direction of the vehicle’s heading.
With the ignition switch placed in the ON position,
press the button as described in
the
chart below to activate various features of the
automatic anti-glare rearview mirror.
For information ...
Door speaker (coupe)
Description
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker
amp. amplifies the audio
signals before sending them to the door speakers using the audio signal
circuits.
Diagnosis Procedure
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connector B121 and suspec ...
Three-way catalyst
The three-way catalyst is an emission control
device installed in the exhaust system. Exhaust
gases in the three-way catalyst are burned at
high temperatures to help reduce pollutants.
WARNING
● The exhaust gas and the exhaust system
are very hot. Keep people, animals
or flammable mater ...