Infiniti FX35, FX50 (S51). Manual - part 1374

MWI

METER SYSTEM

MWI-15

< SYSTEM DESCRIPTION >

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TACHOMETER : Component Parts Location

INFOID:0000000005524559

JPNIA1104ZZ

MWI-16

< SYSTEM DESCRIPTION >

METER SYSTEM

TACHOMETER : Component Description

INFOID:0000000005524560

ENGINE COOLANT TEMPERATURE GAUGE

ENGINE COOLANT TEMPERATURE GAUGE : System Diagram

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ENGINE COOLANT TEMPERATURE GAUGE : System Description

INFOID:0000000005524562

• ECM converses a signal from engine coolant temperature sensor to engine coolant temperature signal, and

transmits to unified meter and A/C amp. with CAN communication line.

• Unified meter and A/C amp. transmits engine coolant temperature signal to combination meter with commu-

nication line.

• Combination meter converses engine coolant temperature signal to the angle signal, and commands to

engine coolant temperature gauge.

1.

Fuel level sensor unit and fuel pump 
(main)

2.

BCM

3.

IPDM E/R

4.

ECM : 

EC-589, "Component Parts 

Location"

 (VQ35HR engine models)

ECM : 

EC-589, "Component Parts 

Location"

 (VK50VE engine models)

5.

Oil pressure switch (VQ35HR engine 
models)

6.

Ambient sensor

7.

Oil pressure switch (VK50VE engine 
models)

8.

ABS actuator and electric unit (con-
trol unit)

9.

Unified meter and A/C amp.

10. Combination meter

11.

Fuel level sensor unit (sub)

A.

Rear seat (bottom)

B.

Dash side finisher (passenger side)

C.

Hoodledge cover (RH)

D.

2WD [oil pan (upper) RH side]

E.

AWD [oil filter bracket part (VQ35HR 
engine models)]

F.

Condenser (front)

G.

AWD [oil filter bracket part (VK50VE 
engine models)]

H.

Hoodledge cover (LH)

I.

Behind cluster lid C

Unit

Description

Combination meter

Indicates the engine speed according to the engine speed signal received from the unified meter 
and A/C amp. by means of communication line.

Unified meter and A/C amp.

Transmits the engine speed signal received from ECM with CAN communication line to the com-
bination meter by means of communication line.

ECM

Transmits the engine speed signal to the unified meter and A/C amp. with CAN communication 
line.

JPNIA1601GB

MWI

METER SYSTEM

MWI-17

< SYSTEM DESCRIPTION >

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ENGINE COOLANT TEMPERATURE GAUGE : Component Parts Location

INFOID:0000000005524563

JPNIA1104ZZ

MWI-18

< SYSTEM DESCRIPTION >

METER SYSTEM

ENGINE COOLANT TEMPERATURE GAUGE : Component Description

INFOID:0000000005524564

FUEL GAUGE

FUEL GAUGE : System Diagram

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FUEL GAUGE : System Description

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CONTROL OUTLINE

• The unified meter and A/C amp. reads the fuel level sensor signal from the fuel gauge unit and transmits it to

the combination meter with the communication line.

• The combination meter indicates the fuel level on the fuel gauge according to the received fuel level sensor

signal.

REFUEL CONTROL

The combination meter accelerates the fuel gauge segment if the all conditions listed below are met, or the
ignition switch is ON from OFF.
• Ignition switch is ON position.
• The vehicle is not moving.
• The fuel level change by 15   (4 US gal, 3-3/10 Imp gal) or more.

1.

Fuel level sensor unit and fuel pump 
(main)

2.

BCM

3.

IPDM E/R

4.

ECM : 

EC-589, "Component Parts 

Location"

 (VQ35HR engine models)

ECM : 

EC-589, "Component Parts 

Location"

 (VK50VE engine models)

5.

Oil pressure switch (VQ35HR engine 
models)

6.

Ambient sensor

7.

Oil pressure switch (VK50VE engine 
models)

8.

ABS actuator and electric unit (con-
trol unit)

9.

Unified meter and A/C amp.

10. Combination meter

11.

Fuel level sensor unit (sub)

A.

Rear seat (bottom)

B.

Dash side finisher (passenger side)

C.

Hoodledge cover (RH)

D.

2WD [oil pan (upper) RH side]

E.

AWD [oil filter bracket part (VQ35HR 
engine models)]

F.

Condenser (front)

G.

AWD [oil filter bracket part (VK50VE 
engine models)]

H.

Hoodledge cover (LH)

I.

Behind cluster lid C

Unit

Description

Combination meter

Indicates the engine coolant temperature gauge according to the engine coolant temperature sig-
nal received from the unified meter and A/C amp. by means of communication line.

Unified meter and A/C amp.

Transmits the engine coolant temperature signal received from ECM with CAN communication 
line to the combination meter by means of communication line.

ECM

Transmits the engine coolant temperature signal to the unified meter and A/C amp. with CAN 
communication line.

JSNIA0534GB