Nissan Murano. Manual - part 556

EC-334

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P0462, P0463 FUEL LEVEL SENSOR

P0462, P0463 FUEL LEVEL SENSOR

Description

INFOID:0000000009720058

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 combina-
tion meter sends the fuel level sensor signal to the ECM via the CAN communication line.
It consists of two parts, one is mechanical float and the other is variable resistor. Fuel level sensor output volt-
age changes depending on the movement of the fuel mechanical float.

DTC Logic

INFOID:0000000009720059

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-351, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V 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-334, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009720060

1.

CHECK COMBINATION METER FUNCTION

Refer to 

MWI-35, "CONSULT Function (METER/M&A)"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Go to 

MWI-46, "Diagnosis Procedure"

.

2.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0462

Fuel level sensor circuit 
low input

An excessively low voltage from the sensor is 
sent to ECM.

• Harness or connectors

(The CAN communication line is open or 
shorted)

• Harness or connectors

(The sensor circuit is open or shorted)

• Combination meter
• Fuel level sensor

P0463

Fuel level sensor circuit 
high input

An excessively high voltage from the sensor is 
sent to ECM.

P0462, P0463 FUEL LEVEL SENSOR

EC-335

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

>> INSPECTION END

EC-336

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P0500 VSS

P0500 VSS

Description

INFOID:0000000009720061

ECM receives vehicle speed signals from two different paths via CAN communication line: One is from the
ABS actuator and electric unit (control unit) via the combination unit and the other is from TCM.

DTC Logic

INFOID:0000000009720062

DTC DETECTION LOGIC

NOTE:
• If DTC P0500 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
• If DTC P0500 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer to 

EC-

351, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following proce-
dure before conducting the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 10 V or more at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start engine.

2.

Shift the selector lever to D range and wait at least for 2 seconds.

3.

Drive the vehicle at least 5 seconds at 20 km/h (13 MPH) or more.

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a
road test is expected to be easier, it is unnecessary to lift the vehicle.

4.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to 

EC-336, "Diagnosis Procedure"

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009720063

1.

CHECK DTC WITH TCM

Check DTC with TCM. Refer to 

TM-38, "CONSULT Function"

.

Is the inspection result normal?

YES

>> GO TO 2.

DTC No.

Trouble diagnosis

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0500

VEH SPEED SEN/CIRC
(Vehicle speed sensor)

At 20 km/h (13 MPH), ECM detects the fol-
lowing status continuously for 5 seconds or 
more: The difference between a vehicle 
speed calculated by a secondary speed sen-
sor transmitted from TCM to ECM via CAN 
communication and the vehicle speed indi-
cated on the combination meter exceeds 
15km/h (10 MPH).

• Harness or connector

(The CAN communication line is open 
or shorted.) 

• Combination meter
• ABS actuator and electric unit (control 

unit)

• Wheel sensor
• TCM
• Secondary speed sensor

P0500 VSS

EC-337

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

NO

>> Perform trouble shooting relevant to DTC indicated.

2.

CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Check DTC with ABS actuator and electric unit (control unit). Refer to 

BRC-28, "CONSULT Function"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Perform trouble shooting relevant to DTC indicated.

3.

CHECK DTC WITH COMBINATION METER

Check DTC with combination meter. Refer to 

MWI-35, "CONSULT Function (METER/M&A)"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Perform trouble shooting relevant to DTC indicated.

4.

CHECK SECONDARY SPEED SENSOR

Check secondary speed sensor. Refer to 

TM-60, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace or replace error-detected parts.

5.

CHECK WHEEL SENSOR

Check wheel sensor. Refer to 

BRC-50, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

NO

>> Replace or replace error-detected parts.