Nissan Murano. Manual - part 1041

MWI-44

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

COMBINATION METER

COMBINATION METER : Diagnosis Procedure

INFOID:0000000009721280

1.

CHECK FUSE

Check for blown fuses.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Be sure to eliminate cause of malfunction before installing new fuse.

2.

CHECK POWER SUPPLY CIRCUIT

Check voltage between combination meter harness connector terminals and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness between combination meter and fuse.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect combination meter connector.

3.

Check continuity between combination meter harness connector terminals and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure

INFOID:0000000010113694

1.

CHECK FUSES AND FUSIBLE LINK

Check that the following IPDM E/R fuses or fusible links are not blown.

Power source

Fuse No.

Battery

11

Ignition switch ON or START 

4

Terminals

Ignition switch po-

sition

Voltage

(Approx.)

(+)

(-)

Combination meter

Ground

Connector

Terminal

M34

1

OFF

Battery voltage

2

ON

Terminals

Continuity

(+)

(-)

Combination meter

Ground

Connector

Terminal

M34

3

Existed

23

MWI

POWER SUPPLY AND GROUND CIRCUIT

MWI-45

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect IPDM E/R connector.

3.

Check voltage between IPDM E/R harness connector and the ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair the harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between IPDM E/R harness connectors and the ground.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair the harness or connector.

Signal name

Fuses and fusible link No.

Battery power supply

E

50

51

Terminals

Voltage

(Approx.)

(+)

(

−

)

IPDM E/R

Connector

Terminal

Ground

E9

1

Battery voltage

IPDM E/R

Ground

Continuity

Connector

Terminal

E10

12

Existed

E11

41

MWI-46

< DTC/CIRCUIT DIAGNOSIS >

FUEL LEVEL SENSOR SIGNAL CIRCUIT

FUEL LEVEL SENSOR SIGNAL CIRCUIT

Description

INFOID:0000000009721282

The fuel level sensor unit and fuel pump (fuel level sensor) and the fuel level sensor unit (sub) detect the fuel
level in the fuel tank and transmit the fuel gauge signal to the combination meter.

Component Function Check

INFOID:0000000009721283

1.

PERFORM COMPONENT FUNCTION CHECK (1)

1.

Turn ignition switch OFF.

2.

Disconnect fuel level sensor unit and fuel pump (fuel level sensor) connector.

3.

Connect variable resistor between harness connector terminals located on the vehicle side of the fuel
level sensor unit and fuel pump (fuel level sensor). 

4.

Set variable resistor according to the resistance value shown in the following table and turn ignition switch
ON.

*: Reference resistance values used when the combination meter judges the indication position of the fuel
gauge.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Refer to 

MWI-46, "Diagnosis Procedure"

.

2.

PERFORM COMPONENT FUNCTION CHECK (2)

Check the fuel level sensor unit and fuel pump (fuel level sensor) and/or fuel level sensor (sub). Refer to 

MWI-

47, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the fuel level sensor unit and fuel pump (fuel level sensor) and/or fuel level sensor unit

(sub). Refer to 

FL-6, "Removal and Installation"

.

Diagnosis Procedure

INFOID:0000000009721284

1.

CHECK FUEL LEVEL SENSOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect combination meter connector and fuel level sensor unit and fuel pump (fuel level sensor) con-
nector.

3.

Check continuity between combination meter harness connector terminal and fuel level sensor unit and
fuel pump (fuel level sensor) harness connector terminal.

Fuel level sensor unit and fuel pump (fuel level sensor)

Connector

Terminals

B40

2

5

Resistance (

Ω

)

*

(Approx.)

Fuel gauge indication position

(Approx.)

Less than 6.0

Full

22.8

3/4

44.6

2/4

65.6

1/4

More than 80.0

Empty

MWI

FUEL LEVEL SENSOR SIGNAL CIRCUIT

MWI-47

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

4.

Check continuity between combination meter harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK FUEL LEVEL SENSOR GROUND CIRCUIT

1.

Check continuity between fuel level sensor unit and fuel pump (fuel level sensor) harness connector ter-
minal and combination meter harness connector terminal.

2.

Check continuity between fuel level sensor unit and fuel pump (fuel level sensor) harness connector ter-
minal and ground.

Is the inspection result normal?

YES

>> Replace combination meter. Refer to 

MWI-105, "Removal and Installation"

.

NO

>> Repair the harnesses or connectors.

Component Inspection

INFOID:0000000009721285

1.

CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP (FUEL LEVEL SENSOR)

1.

Remove the fuel level sensor unit and fuel pump (fuel level sensor). Refer to 

FL-6, "Removal and Installa-

tion"

. 

2.

Check the resistance between fuel level sensor unit and fuel pump (fuel level sensor).

Terminals

Continuity

(+)

(-)

Combination meter

Fuel level sensor unit and fuel 

pump (fuel level sensor)

Connector

Terminal

Connector

Terminal

M34

34

B40

2

Existed

Terminals

Continuity

(+)

(-)

Combination meter

Ground

Connector

Terminal

M34

34

Not existed

Terminals

Continuity

(+)

(-)

Fuel level sensor unit and fuel 

pump (fuel level sensor)

Combination meter

Connector

Terminal

Connector

Terminal

B40

5

M34

24

Existed

Terminals

Continuity

(+)

(-)

Fuel level sensor unit and fuel 

pump (fuel level sensor)

Ground

Connector

Terminal

B40

5

Not existed