Infiniti FX35, FX50 (S51). Manual - part 1386

 

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Infiniti FX35, FX50 (S51). Manual - part 1386

 

 

MWI

FUEL LEVEL SENSOR SIGNAL CIRCUIT

MWI-63

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

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

Standard float position

*: When float rod is contact with stopper.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace fuel level sensor unit and fuel pump (main).

3.

CHECK FUEL LEVEL SENSOR UNIT (SUB)

Inspect the resistance of fuel level sensor unit (sub).

Standard float position

*: When float rod is contact with stopper.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace fuel level sensor unit (sub).

Fuel level sensor unit and fuel pump 

(main)

Condition

Resistance

(Approx.)

Terminal

2

5

Full (A)

Empty (B)

80 

JPNIA1110ZZ

Standard float position [mm (in)]

*

Full (A)

Approx. 223.8 (8.81)

Empty (B)

Approx. 29.4 (1.16)

Fuel level sensor unit (sub)

Condition

Resistance

(Approx.)

Terminal

1

2

Full (A)

Empty (B)

40 

JPNIA1111ZZ

Standard float position [mm (in)]

*

Full (A)

Approx. 4.7 (0.19)

Empty (B)

Approx. 202.4 (7.97)

MWI-64

< DTC/CIRCUIT DIAGNOSIS >

METER CONTROL SWITCH SIGNAL CIRCUIT

METER CONTROL SWITCH SIGNAL CIRCUIT

Description

INFOID:0000000005524628

Transmits the following signals to the combination meter.

Diagnosis Procedure

INFOID:0000000005524629

1.

CHECK METER CONTROL SWITCH INPUT SIGNAL

1.

Turn the ignition switch ON.

2.

Check voltage between the following terminals of the combination meter.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK METER CONTROL SWITCH SIGNAL CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the combination meter and meter control switch connectors.

3.

Check continuity between combination meter harness connector and meter control switch harness con-
nector.

4.

Check continuity between combination meter harness connector and ground.

 (Illumination control) switch signal (+)

 (Illumination control) switch signal (–)

 (select) switch signal

 (enter) switch signal

Combination meter

Condition

Voltage

Connector

Terminal

(+)

(-)

M53

36

16

When 

 (select) switch is pressed

0 V

Other than the above

5 V

37

16

When 

 (enter) switch is pressed

0 V

Other than the above

5 V

39

16

When 

 (illumination control) switch is 

pressed

0 V

Other than the above

5 V

40

16

When 

 (illumination control) switch is 

pressed

0 V

Other than the above

5 V

Combination meter

Meter control switch

Continuity

Connector

Terminal

Connector

Terminal

M53

16

M54

2

Existed

36

6

Existed

37

7

Existed

39

3

Existed

40

1

Existed

MWI

METER CONTROL SWITCH SIGNAL CIRCUIT

MWI-65

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Component Inspection

INFOID:0000000005524630

1.

CHECK METER CONTROL SWITCH UNIT

1.

Turn the ignition switch OFF.

2.

Disconnect the meter control switch connector.

3.

Check continuity between the following terminals of the meter control switch.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the meter control switch.

Combination meter

Ground

Continuity

Connector

Terminal

M53

16

Not existed

36

Not existed

37

Not existed

39

Not existed

40

Not existed

Combination meter

Operation and status

Continuity

Connector

Terminal

M54

6

2

Press 

 (select) switch

Existed

Other than the above

Not existed

7

2

Press 

 (enter) switch

Existed

Other than the above

Not existed

3

2

Press 

 (illumination control) switch

Existed

Other than the above

Not existed

1

2

Press 

 (illumination control) switch

Existed

Other than the above

Not existed

MWI-66

< DTC/CIRCUIT DIAGNOSIS >

TRIP A/B RESET SWITCH SIGNAL CIRCUIT

TRIP A/B RESET SWITCH SIGNAL CIRCUIT

Description

INFOID:0000000005524631

Transmits the trip A/B reset switch signals to the combination meter.

Diagnosis Procedure

INFOID:0000000005524632

1.

CHECK TRIP A/B RESET SWITCH INPUT SIGNAL

1.

Turn the ignition switch ON. 

2.

Check voltage between the combination meter harness connector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK TRIP A/B RESET SWITCH SIGNAL CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the combination meter and meter control switch connectors.

3.

Check continuity between combination meter harness connector and trip A/B reset switch harness con-
nector.

4.

Check continuity between combination meter harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Component Inspection

INFOID:0000000005524633

1.

CHECK TRIP A/B RESET SWITCH UNIT

1.

Turn the ignition switch OFF.

2.

Disconnect the trip A/B reset switch connector.

3.

Check continuity between the trip A/B reset switch connector terminals.

Combination meter

Condition

Voltage

Connec-

tor

Terminal

(+)

(-)

M53

38

16

When trip A/B reset switch is pressed

0 V

Other than the above

5 V

Combination meter

Trip A/B reset switch

Continuity

Connector

Terminal

Connector

Terminal

M53

38

M56

1

Existed

16

2

Existed

Combination meter

Ground

Continuity

Connector

Terminal

M53

38

Not existed

16

Not existed

Combination meter

Operation and status

Continuity

Connector

Terminal

M56

1

2

Press trip A/B reset switch

Existed

Other than the above

Not existed

 

 

 

 

 

 

 

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