Nissan Altima 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
Description
The vehicle speed signal is sent to the combination meter from the “ABS
actuator and electric unit (control
unit)” by CAN communication line. The combination meter then sends a si ...
Other materials:
Intelligent key system/engine start function symptoms
Symptom Table
Engine cannot be started with all Intelligent Keys.
CAUTION:
• Follow Trouble Diagnosis Flowchart referring to “SEC-10, "Work Flow"”.
Determine malfunctioning
condition before performing this diagnosis.
• Check that vehicle is under the condition shown in “ ...
P0850 PNP Switch
Description
When the selector lever position is P or N, park/neutral position (PNP)
signal from the TCM is sent to ECM
(CVT models).
When the selector lever position is Neutral position, park/neutral position
(PNP) switch is ON. ECM detects the
position because the continuity of the line ( ...
Basic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
DETAILED FLOW
1.COLLECT THE INFORMATION FROM THE CUSTOMER
It is also important to clarify customer complaints before inspection. First
of all, reproduce symptoms, and
understand them fully. Ask customer about his/her complaints carefully. In some
case ...