Nissan GT-R. Manual - part 220

MWI

DIAGNOSIS SYSTEM (METER)

MWI-39

< SYSTEM DESCRIPTION >

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7.

When the trip A/B reset switch is pressed, (while the trip A/B reset switch is pressed) each meter oper-
ates.

NOTE:
If any meter does not operate, replace the combination meter.
The figure is reference.

JPNIA1266ZZ

MWI-40

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

COMBINATION METER

COMBINATION METER : Diagnosis Procedure

INFOID:0000000009189335

1.

CHECK FUSES

Check that the following fuses are not blown:

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the fuse with a new one after repairing the applicable circuit.

2.

CHECK POWER SUPPLY CIRCUIT

Check the voltage between the combination meter harness connector terminals and the ground. 

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the harness between the fuse and the combination meter. 

3.

CHECK GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the combination meter connector.

3.

Check for continuity between the combination meter harness connector terminals and the ground. 

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair the harnesses or connectors.

Power source

Fuse No.

Battery

11

Ignition switch ON or START

4

Terminal No.

Signal name

Ignition switch

Voltage

1

Battery power supply

OFF

Battery voltage

2

Ignition signal

ON

Battery voltage

Combination meter

Ground

Continuity

Connector

Terminal

M53

3

Existed

5

MWI

FUEL LEVEL SENSOR SIGNAL CIRCUIT

MWI-41

< DTC/CIRCUIT DIAGNOSIS >

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FUEL LEVEL SENSOR SIGNAL CIRCUIT

Description

INFOID:0000000009189336

Detects the fuel level in fuel tank using the fuel level sensor unit, and transmits the fuel level sensor signal to
the combination meter.

Diagnosis Procedure

INFOID:0000000009189337

1.

CHECK FUEL LEVEL SENSOR UNIT (SUB) CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the connectors of combination meter and fuel level sensor unit (sub).

3.

Check for continuity between the combination meter harness connector and the fuel level sensor unit
(sub) harness connector. 

4.

Check for continuity between the combination meter harness connector and the ground. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the harnesses or connectors.

2.

CHECK FUEL LEVEL SENSOR UNIT (MAIN-SUB) CIRCUIT

1.

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

2.

Check for continuity between the fuel level sensor unit (sub) harness connector and the fuel level sensor
unit and fuel pump (main) harness connector. 

3.

Check for continuity between the fuel level sensor unit (sub) harness connector and the ground. 

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the harnesses or connectors.

3.

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

1.

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

Combination meter

Fuel level sensor unit (sub)

Continuity

Connector

Terminal

Connector

Terminal

M53

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B27

1

Existed

Combination meter

Ground

Continuity

Connector

Terminal

M53

38

Not existed

Fuel level sensor unit (sub)

Fuel level sensor unit and fuel pump 

(main)

Continuity

Connector

Terminal

Connector

Terminal

B27

2

B225

2

Existed

Fuel level sensor unit (sub)

Ground

Continuity

Connector

Terminal

B27

2

Not existed

Fuel level sensor unit and fuel pump 

(main)

Combination meter

Continuity

Connector

Terminal

Connector

Terminal

B225

3

M53

18

Existed

MWI-42

< DTC/CIRCUIT DIAGNOSIS >

FUEL LEVEL SENSOR SIGNAL CIRCUIT

2.

Check for continuity between the fuel level sensor unit and fuel pump (main) harness connector and the
ground. 

Is the inspection result normal?

YES

>> Replace combination meter. Refer to 

MWI-68, "Removal and Installation"

.

NO

>> Repair the harnesses or connectors.

Fuel level sensor unit and fuel pump 

(main)

Ground

Continuity

Connector

Terminal

B225

3

Not existed