Infiniti QX56 (Z62). Manual - part 940

 

  Index      Infiniti     Infiniti QX56 (Z62) - service repair manual 2011 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  938  939  940  941   ..

 

 

Infiniti QX56 (Z62). Manual - part 940

 

 

MWI-14

< SYSTEM DESCRIPTION >

SYSTEM

TACHOMETER : System Diagram

INFOID:0000000006221698

TACHOMETER : System Description

INFOID:0000000006221699

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

transmits it to the combination meter via CAN communication.

• The combination meter indicates the engine speed to the tachometer according to the engine speed signal

received via CAN communication. 

ENGINE COOLANT TEMPERATURE GAUGE

ENGINE COOLANT TEMPERATURE GAUGE : System Diagram

INFOID:0000000006221700

ENGINE COOLANT TEMPERATURE GAUGE : System Description

INFOID:0000000006221701

• ECM reads the engine coolant temperature signal from the engine coolant temperature sensor and transmits

the signal to the combination meter via CAN communication. 

• The combination meter indicates the engine coolant temperature to the engine coolant temperature gauge

according to the engine coolant temperature signal received via CAN communication. 

FUEL GAUGE

FUEL GAUGE : System Diagram

INFOID:0000000006221702

FUEL GAUGE : System Description

INFOID:0000000006221703

CONTROL OUTLINE

The combination meter reads the fuel level sensor signal from the fuel level sensor unit and indicates the fuel
level to the fuel gauge. 

JSNIA2462GB

JSNIA3015GB

JSNIA3000GB

MWI

SYSTEM

MWI-15

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

REFUEL CONTROL

The combination meter accelerates the fuel gauge 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, 3-1/4 Imp gal) or more.

ENGINE OIL PRESSURE GAUGE

ENGINE OIL PRESSURE GAUGE : System Diagram

INFOID:0000000006221704

ENGINE OIL PRESSURE GAUGE : System Description

INFOID:0000000006221705

• IPDM E/R reads the ON/OFF signals from the oil pressure switch and transmits the oil pressure switch sig-

nal to the combination meter via BCM with the CAN communication.

• The combination meter indicates engine oil pressure (Normal/Low) on the engine oil pressure gauge, based

on an oil pressure switch signal received via CAN communication.

VOLTMETER

VOLTMETER : System Diagram

INFOID:0000000006221706

VOLTMETER : System Description

INFOID:0000000006221707

The combination meter reads the voltage of an ignition signal and indicates the voltage on the voltmeter when
the ignition switch is in ON or START position.

OIL PRESSURE WARNING LAMP

OIL PRESSURE WARNING LAMP : System Diagram

INFOID:0000000006221708

JSNIA2998GB

JSNIA2996GB

JSNIA2464GB

MWI-16

< SYSTEM DESCRIPTION >

SYSTEM

OIL PRESSURE WARNING LAMP : System Description

INFOID:0000000006221709

• IPDM E/R reads the ON/OFF signals from the oil pressure switch and transmits the oil pressure switch sig-

nal to the combination meter via BCM with the CAN communication. 

• The combination meter turns the oil pressure warning lamp ON (at the time of a reduction in hydraulic pres-

sure)/OFF (except at the time of a reduction in hydraulic pressure) according to the oil pressure switch signal
received via CAN communication. 

MASTER WARNING LAMP

MASTER WARNING LAMP : System Diagram

INFOID:0000000006221710

MASTER WARNING LAMP : System Description

INFOID:0000000006221711

When receiving a signal from each unit, switch, or sensor, the combination meter turns ON/OFF the master
warning lamp in synchronization with the following warnings on the information display:
• Door open warning
• Parking brake release warning
• Low fuel warning
• Low washer fluid warning
• NO KEY warning
NOTE:
For details on warnings displayed on the vehicle information display, refer to 

MWI-20, "INFORMATION DIS-

PLAY : System Description"

.

METER ILLUMINATION CONTROL

METER ILLUMINATION CONTROL : System Diagram

INFOID:0000000006221712

METER ILLUMINATION CONTROL : System Description

INFOID:0000000006221713

METER ILLUMINATION ON/OFF CONTROL FUNCTION

• Combination meter turns ON meter illumination when the following condition is satisfied:
- Ignition switch ON
• Combination meter turns OFF meter illumination when any of the following condition is satisfied:

JSNIA3098GB

JSNIA3235GB

MWI

SYSTEM

MWI-17

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

- During a crank with vehicle speed less than 1 km/h (0.6 MPH)
- Ignition switch OFF or ACC
• The combination meter receives the following signals to control meter illumination.

METER ILLUMINATION CONTROL FUNCTION

• The combination meter controls meter illumination, based on the following signal.
- Dimmer signal
• The combination meter switches mode between Daytime mode and Nighttime mode, according to the fol-

lowing conditions.

*: For further information, refer to 

INL-11, "AUTO LIGHT ADJUSTMENT SYSTEM : System Description"

.

• The operation of the illumination control switch allows the brightness adjustment of meter illumination.

METER EFFECT FUNCTION

METER EFFECT FUNCTION : System Diagram

INFOID:0000000006221714

METER EFFECT FUNCTION : System Description

INFOID:0000000006221715

ENGINE-START EFFECT FUNCTION

Signal name

Signal path

Ignition signal

Engine status signal

ECM 

 Combination meter

Vehicle speed signal

ABS actuator and control unit (control unit) 

 Combination meter

Starter relay status signal

BCM 

 Combination meter

Condition

Meter illumination

Combination switch
(lighting switch)

1ST or 2ND position

Outdoor: Bright*

Daytime mode

Outdoor: Dark*

Nighttime mode

AUTO POSITION

Outdoor: Bright*

Daytime mode

Outdoor: Dark*

Nighttime mode

Off

Daytime mode

Meter illumination

The number of adjustable steps

Daytime

22 steps

Nighttime

22 steps

JSNIA3058GB

 

 

 

 

 

 

 

Content   ..  938  939  940  941   ..