Nissan Altima (L32) 2007-2012 Service Manual: P0462, P0463 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 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-361, "DTC Logic".
This diagnosis indicates the former, to detect open or short circuit malfunction.
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 11V and 16V at ignition switch ON.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 5 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Go to EC-346, "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
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 ...P0500 VSS
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P2127, P2128 APP Sensor
Description
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelerator
position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometer which tran ...
Warning chime system
System Diagram
System Description
COMBINATION METER
• The buzzer (1) for warning chime system is installed in the combination
meter.
• The buzzer sounds when the combination meter receives a buzzer
output signal from each unit.
BCM
BCM receives signals from various units and transm ...
Speedometer and odometer
This vehicle is equipped with a speedometer
and odometer. The speedometer is
located on the right side of the meter
cluster. The odometer is located within the
vehicle information display.
5 inch (13 cm) Type A (if so equipped)
Speedometer
The speedometer indicates vehicle speed.
7 inch (18 cm) Ty ...