Nissan Versa Note. Manual - part 592

MWI

POWER SUPPLY AND GROUND CIRCUIT

MWI-43

< DTC/CIRCUIT DIAGNOSIS >

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Procedure

INFOID:0000000009693741

Regarding Wiring Diagram information, refer to 

BCS-51, "Wiring Diagram"

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1.

CHECK FUSES AND FUSIBLE LINK

Check that the following fuses and fusible link are not blown.

Is the fuse blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1. Disconnect BCM connector M99.

2. Check voltage between BCM connector M99 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM connector M99 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair harness or connector.

BCM (BODY CONTROL SYSTEM) (WITHOUT INTELLIGENT KEY SYSTEM)
BCM (BODY CONTROL SYSTEM) (WITHOUT INTELLIGENT KEY SYSTEM) : Diag-
nosis Procedure

INFOID:0000000009693742

Regarding Wiring Diagram information, refer to 

BCS-111, "Wiring Diagram"

.

1.

CHECK FUSES AND FUSIBLE LINK

Check that the following fuses and fusible link are not blown.

Terminal No.

Signal name

Fuses and fusible link No.

57

Battery power supply

12 (10A)

70

G (40A)

BCM

Ground

Voltage

Connector

Terminal

M99

57

—

Battery voltage

70

BCM

Ground

Continuity

Connector

Terminal

M99

67

—

Yes

MWI-44

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

Is the fuse blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM connectors.

3. Check voltage between BCM connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM connector and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair harness or connector.

Terminal No.

Signal name

Fuses and fusible link No.

37

Battery power supply

8 (10A)

42

12 (10A)

50

G (40A)

11

Ignition switch ACC or ON

18 (10A)

38

Ignition switch ON or START

2 (10A)

BCM

Ground

Ignition switch position

Connector

Terminal

—

OFF

ACC

ON

M18

11

0 V

Battery voltage

Battery voltage

37

Battery voltage

38

0 V

0 V

M19

42

Battery voltage

Battery voltage

50

BCM

Ground

Continuity

Connector

Terminal

M19

55

—

Yes

MWI

FUEL LEVEL SENSOR SIGNAL CIRCUIT

MWI-45

< DTC/CIRCUIT DIAGNOSIS >

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FUEL LEVEL SENSOR SIGNAL CIRCUIT

Description

INFOID:0000000009654125

The fuel level sensor unit and fuel pump detects the approximate fuel level in the fuel tank and transmits the

fuel level signal to the combination meter.

Component Function Check

INFOID:0000000009654126

1.

COMBINATION METER INPUT SIGNAL

1. Select METER/M&A on CONSULT.

2. Using FUEL METER of DATA MONITOR, compare the DATA MONITOR value with the fuel gauge posi-

tion.

Does monitor value match fuel gauge reading?

YES

>> Inspection End.

NO

>> Replace combination meter. Refer to 

MWI-54, "Removal and Installation"

.

Diagnosis Procedure

INFOID:0000000009654127

Regarding Wiring Diagram information, refer to 

MWI-23, "Wiring Diagram"

.

1.

CHECK HARNESS CONNECTOR

1. Turn ignition switch OFF.

2. Check combination meter and fuel level sensor unit terminals (meter-side and harness-side) for poor con-

nection.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace terminals or connectors.

2.

CHECK FUEL LEVEL SENSOR UNIT CIRCUIT

1. Disconnect combination meter harness connector M24 and fuel level sensor unit and fuel pump harness

connector B44.

2. Check continuity between combination meter harness connector M24 terminal 6 and fuel level sensor unit

and fuel pump harness connector B44 terminal 2.

3. Check continuity between fuel level sensor unit and fuel pump harness connector B44 terminal 2 and

ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

Fuel gauge indication position

Reference value of data monitor [L]

1

Approx.  39.8

3/4

Approx. 31.2

1/2

Approx. 20.8

1/4

Approx. 10.8

0

Approx.  2.9

Connector

Terminal

Connector

Terminal

Continuity

M24

6

B44

2

Yes

Connector

Terminal

Ground

Continuity

B44

2

No

MWI-46

< DTC/CIRCUIT DIAGNOSIS >

FUEL LEVEL SENSOR SIGNAL CIRCUIT

3.

CHECK FUEL LEVEL SENSOR GROUND CIRCUIT

1. Disconnect ECM connector F11.

2. Check continuity between combination meter harness connector M24 terminal 24 and fuel level sensor

unit and fuel pump harness connector B44 terminal 5.

3. Check continuity between fuel level sensor unit and fuel pump harness connector B44 terminal 5 and

ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair harness or connector.

4.

CHECK INSTALLATION CONDITION

Check fuel level sensor unit installation, and verify the float arm does not interfere or bind with the internal

components in the fuel tank.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> Install the fuel level sensor unit properly.

Component Inspection

INFOID:0000000009654128

1.

REMOVE FUEL LEVEL SENSOR UNIT

Remove the fuel level sensor unit. Refer to 

FL-6, "Removal and Installation"

.

>> GO TO 2.

2.

CHECK FUEL LEVEL SENSOR UNIT

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

*: When float rod is in contact with stopper.

Is inspection result OK?

YES

>> Inspection End.

NO

>> Replace fuel level sensor unit and fuel pump. Refer to

FL-6, "Removal and Installation"

.

Connector

Terminal

Connector

Terminal

Continuity

M24

24

B44

5

Yes

Connector

Terminal

Ground

Continuity

B44

5

No

Terminals

Condition

Resistance (

Ω)

(Approx.)

Height [mm (in)]

Fuel level sensor unit

2

5

Full

*

 (A)

51

171.4 (6.75)

Empty

*

 (B)

283

18.5 (0.73)

JPNIA0841ZZ