Nissan Cube. Manual - part 679

MWI-40

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

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.

IPDM E/R (WITHOUT INTELLIGENT KEY SYSTEM)

IPDM E/R (WITHOUT INTELLIGENT KEY SYSTEM) : Diagnosis Procedure

INFOID:0000000009945709

1.

CHECK FUSES AND FUSIBLE LINK

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

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.

Signal name

Fuses and fusible link No.

Battery power supply

C

D

J

Terminals

Voltage

(Approx.)

(+)

(

−

)

IPDM E/R

Connector

Terminal

Ground

E9

1

Battery voltage

2

E10

8

IPDM E/R

Ground

Continuity

Connector

Terminal

E11

9

Existed

E12

19

Signal name

Fuses and fusible link No.

Battery power supply

C

D

J

MWI

POWER SUPPLY AND GROUND CIRCUIT

MWI-41

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

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 IGNITION POWER SUPPLY CIRCUIT

1.

Turn the ignition switch ON.

2.

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

Is the measurement value normal?

YES

>> GO TO 4.

NO

>> Repair the harness or connector.

4.

CHECK GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

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

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair the harness or connector.

Terminals

Voltage

(Approx.)

(+)

(

−

)

IPDM E/R

Connector

Terminal

Ground

E9

1

Battery voltage

2

E10

8

Terminals

Voltage

(Approx.)

(+)

(

−

)

IPDM E/R

Ground

Connector

Terminal

E12

18

Battery voltage

IPDM E/R

Ground

Continuity

Connector

Terminal

E11

9

Existed

E12

19

MWI-42

< DTC/CIRCUIT DIAGNOSIS >

FUEL LEVEL SENSOR SIGNAL CIRCUIT

FUEL LEVEL SENSOR SIGNAL CIRCUIT

Description

INFOID:0000000009945710

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

Component Function Check

INFOID:0000000009945711

1.

PERFORM COMPONENT FUNCTION CHECK (1)

1.

Turn ignition switch OFF.

2.

Disconnect fuel level sensor unit and fuel pump connector.

3.

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

4.

Set variable resistor according to the resistance value shown in the following table and turn ignition switch
ON.
NOTE:
For information on the relationship between the number of lighting segments of fuel gauge and resistance
of fuel level sensor signal circuit, refer to 

MWI-24, "INFORMATION DISPLAY : System Description"

.

*: Reference resistance values used when the combination meter judges the number of lighting segments
of the fuel gauge.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Refer to 

MWI-43, "Diagnosis Procedure"

.

2.

PERFORM COMPONENT FUNCTION CHECK (2)

Check the fuel level sensor unit and fuel pump. Refer to 

MWI-43, "Component Inspection"

.

Does monitor value match fuel gauge reading?

Fuel level sensor unit and fuel pump

Connector

Terminals

B40

2

5

Resistance (

Ω

)

*

(Approx.)

Fuel gauge indication position

Less than 6.0

16/16

8.8

15/16

12.5

14/16

15.0

13/16

17.5

12/16

21.0

11/16

24.5

10/16

28.5

9/16

32.5

8/16

37.5

7/16

42.5

6/16

48.8

5/16

55.0

4/16

61.8

3/16

68.5

2/16

More than 75.0

1/16

MWI

FUEL LEVEL SENSOR SIGNAL CIRCUIT

MWI-43

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

YES

>> INSPECTION END

NO

>> Replace combination meter. Refer to 

MWI-93, "Removal and Installation"

.

Diagnosis Procedure

INFOID:0000000009945712

1.

CHECK FUEL LEVEL SENSOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect combination meter connector and fuel level sensor unit and fuel pump connector.

3.

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

4.

Check continuity between combination meter harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK FUEL LEVEL SENSOR GROUND CIRCUIT

Check continuity between fuel level sensor unit and fuel pump harness connector and combination meter har-
ness connector.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace combination meter. Refer to 

MWI-93, "Removal and Installation"

.

Component Inspection

INFOID:0000000009945713

1.

REMOVE FUEL LEVEL SENSOR UNIT

Remove the fuel level sensor unit. Refer to 

FL-5, "Removal and Installation"

. 

>> GO TO 2.

2.

CHECK FUEL LEVEL SENSOR UNIT

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

Combination meter

Fuel level sensor unit and fuel 

pump

Continuity

Connector

Terminal

Connector

Terminal

M34

6

B40

2

Existed

Combination meter

Ground

Continuity

Connector

Terminal

M34

6

Not existed

Fuel level sensor unit and fuel 

pump

Combination meter

Continuity

Connector

Terminal

Connector

Terminal

B40

5

M34

24

Existed

Terminals

Condition

Resistance (

Ω

)

(Approx.)

Height [mm (in)]

Fuel level sensor unit

2

5

Full

*

 (A)

5.0

165.7 (6.5)

Empty

*

 (B)

81.5

21.1 (0.83)