Nissan Pathfinder. Instruction - part 873

MWI-64

< DTC/CIRCUIT DIAGNOSIS >

TRIP RESET SWITCH SIGNAL CIRCUIT

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace trip reset switch. Refer to 

MWI-83, "Removal and Installation"

.

3

4

When trip reset switch is pressed

Yes

Other than the above

No

MWI

FUEL LEVEL SENSOR SIGNAL CIRCUIT

MWI-65

< DTC/CIRCUIT DIAGNOSIS >

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FUEL LEVEL SENSOR SIGNAL CIRCUIT

Description

INFOID:0000000009174269

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:0000000009174270

1.

COMBINATION METER INPUT SIGNAL

1. Select METER/M&A on CONSULT.

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

of combination meter.

Does the data monitor value approximately match the fuel gauge indication?

YES

>> Inspection End.

NO

>> Replace combination meter. Refer to 

MWI-82, "Removal and Installation"

.

Diagnosis Procedure

INFOID:0000000009174271

Regarding Wiring Diagram information, refer to 

MWI-31, "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 harness connector B72.

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

pump harness connector B72.

3. Check continuity between fuel level sensor unit and fuel pump harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

Fuel gauge pointer

Fuel tank volume [L]

(Approx.)

Full

70.6

3/4

54.1

1/2

36.4

1/4

20

Empty

0

Fuel level sensor unit and fuel pump

Combination meter

Continuity

Connector

Terminal

Connector

Terminal

B72

5

M24

27

Yes

Connector

Terminal

Ground

Continuity

B72

5

No

MWI-66

< DTC/CIRCUIT DIAGNOSIS >

FUEL LEVEL SENSOR SIGNAL CIRCUIT

NO

>> Repair or replace harness or connectors.

3.

CHECK FUEL LEVEL SENSOR UNIT GROUND CIRCUIT

1. Check continuity between combination meter harness connector M24 and fuel level sensor unit and fuel

pump harness connector B72.

2. Check continuity between fuel level sensor unit and fuel pump harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness or connectors.

4.

CHECK INSTALLATION CONDITION

Check fuel level sensor unit installation, and check whether the float arm interferes or binds with any of the

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

YES

>> Inspection End.

NO

>> Install the fuel level sensor unit properly. Refer to  

FL-6, "Removal and Installation"

.

Component Inspection

INFOID:0000000009174272

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 AND FUEL PUMP

Check the resistance between terminals 2 and 5.

*1 and *2: When float arm 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

B72

2

M24

26

Yes

Connector

Terminal

Ground

Continuity

B72

2

No

Terminal

Float position

mm (in)

Resistance value

(Approx.)

2

5

*1

Empty

15.7 (0.6)

283

Ω 

*2

Full

133 (5.2)

51

Ω 

AWNIA2549ZZ

MWI

WASHER FLUID LEVEL SWITCH CIRCUIT

MWI-67

< DTC/CIRCUIT DIAGNOSIS >

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WASHER FLUID LEVEL SWITCH CIRCUIT

Description

INFOID:0000000009174273

Transmits the washer fluid level switch signal to the combination meter.

Diagnosis Procedure

INFOID:0000000009174274

Regarding Wiring Diagram information, refer to 

MWI-31, "Wiring Diagram"

.

1.

CHECK WASHER FLUID LEVEL SWITCH SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect combination meter harness connector M24 and washer fluid level switch harness connector

E208.

3. Check continuity between combination meter harness connector M24 and washer fluid level switch har-

ness connector E208.

4. Check continuity between combination meter harness connector and ground.

Is the inspection result normal? 

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK WASHER FLUID LEVEL SWITCH GROUND CIRCUIT

Check continuity between washer fluid level switch connector and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

Component Inspection

INFOID:0000000009174275

1.

CHECK WASHER FLUID LEVEL SWITCH

1. Turn ignition switch OFF.

2. Disconnect washer fluid level switch connector. 

3. Check washer fluid level switch.

Is the inspection result normal?

Combination meter

Washer fluid level switch

Continuity

Connector

Terminal

Connector

Terminal

M24

49

E208

1

Yes

Combination meter

Ground

Continuity

Connector

Terminal

M24

49

No

Washer fluid level switch

Ground

Continuity

Connector

Terminal

E208

2

Yes

Washer fluid level switch

Condition

Continuity

Terminals

1

2

Washer fluid level switch ON

Yes

Washer fluid level switch OFF

No