Infiniti FX35, FX50 (S51). Manual - part 1373

MWI

METER SYSTEM

MWI-11

< SYSTEM DESCRIPTION >

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METER SYSTEM : Component Description

INFOID:0000000005524552

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

Controls the following with the signals from the unified meter and A/C amp, switches and sensors.

• Speedometer

• Tachometer

• Engine coolant temperature gauge

• Fuel gauge

• Warning lamps

• Indicator lamps

• Information display

Unified meter and A/C amp.

• The combination meter receives the necessary information from various units via CAN communi-

cation line and transmits them to the unified meter and A/C amp. with the communication line that 
connects both of them.

• Transmits the fuel gauge signal from the fuel gauge unit with the communication line that connects 

the unified meter and A/C amp. and the combination meter.

• Reads the signals from the A/T shift selector and paddle shifter transmits them to TCM with CAN 

communication line.

IPDM E/R

IPDM E/R reads the ON/OFF signals of the oil pressure switch and transmits the oil pressure switch 
signal to the unified meter and A/C amp. via BCM with CAN communication line.

Fuel level sensor unit

Refer to 

MWI-61, "Description"

.

Oil pressure switch

Refer to 

MWI-68, "Description"

.

ECM

Transmits the following signals to the unified meter and A/C amp. with CAN communication line.

• Engine speed signal

• Engine coolant temperature signal

• Fuel consumption monitor signal

ABS actuator and electric unit 
(control unit)

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

BCM

• Transmits signals provided by various units to the unified meter and A/C amp. with CAN commu-

nication line.

• Transmits the security signal to the combination meter.

A/T shift selector

Transmits the following signals to the unified meter and A/C amp.

• Manual mode signal

• Non-manual mode signal

• Manual mode shift up signal

• Manual mode shift down signal

Paddle shifter

Transmits the paddle shifter up signal and paddle shifter down signal to the unified meter and A/C 
amp.

TCM

Transmits shift position signal to the unified meter and A/C amp.

Meter control switch

Refer to 

MWI-64, "Description"

.

Trip A/B reset switch

Refer to 

MWI-66, "Description"

.

Washer level switch

Transmits the washer level signal to the combination meter.

Parking brake switch

Refer to 

MWI-69, "Description"

.

MWI-12

< SYSTEM DESCRIPTION >

METER SYSTEM

SPEEDOMETER

SPEEDOMETER : System Diagram

INFOID:0000000005524553

SPEEDOMETER : System Description

INFOID:0000000005524554

• The ABS actuator and electric unit (control unit) converts the pulse signal provided by the wheel sensor to a

vehicle speed signal and transmits it to the unified meter and A/C amp. with CAN communication line.

• The unified meter and A/C amp. receives the vehicle speed signal from the ABS actuator and electric unit

(control unit) with CAN communication line and transmits it to the combination meter by means of communi-
cation line.

• The combination meter indicates the vehicle speed according to the vehicle speed signal received from the

unified meter and A/C amp. by means of communication line.

JSNIA0158GB

MWI

METER SYSTEM

MWI-13

< SYSTEM DESCRIPTION >

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SPEEDOMETER : Component Parts Location

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JPNIA1104ZZ

MWI-14

< SYSTEM DESCRIPTION >

METER SYSTEM

SPEEDOMETER : Component Description

INFOID:0000000005524556

TACHOMETER

TACHOMETER : System Diagram

INFOID:0000000005524557

TACHOMETER : System Description

INFOID:0000000005524558

• ECM converts the pulse signal provided by the crankshaft position sensor to an engine speed signal and

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

• The unified meter and A/C amp. receives the engine speed signal from ECM with CAN communication line

and transmits it to the combination meter by means of communication line.

• Combination meter converses engine speed signal to the angle signal, and commands to tachometer.

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

Unified meter and A/C amp.

Transmits the vehicle speed signal received from ABS actuator and electric unit (control unit) with 
CAN communication line to the combination meter by means of communication line.

ABS actuator and electric unit 
(control unit)

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

JSNIA0160GB