Infiniti QX56 (Z62). Manual - part 938

MWI-6

< SYSTEM DESCRIPTION >

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

METER SYSTEM

METER SYSTEM : Component Parts Location

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1.

IPDM E/R
Refer to 

PCS-4, "Component Parts 

Location"

.

2.

ECM
Refer to 

EC-16, "Component Parts 

Location"

.

3.

Washer level switch

4.

Oil pressure switch
Refer to 

EM-57, "Exploded View"

.

5.

Ambient sensor

6.

A/C auto amp. 
Refer to 

HAC-6, "FRONT AUTO-

MATIC AIR CONDITIONING SYS-
TEM : Component Parts Location"

.

7.

TCM
Refer to 

TM-10, "A/T CONTROL 

SYSTEM : Component Parts Loca-
tion"

.

8.

ABS actuator and electric unit (con-
trol unit)
Refer to 

BRC-10, "Component Parts 

Location"

.

9.

BCM
Refer to 

BCS-4, "BODY CONTROL 

SYSTEM : Component Parts Loca-
tion"

.

10. Fuel level sensor unit

11.

Trip computer switch

12. Combination meter

13.

Trip reset and illumination control 
switch

14. Parking brake switch

A.

Under of left side second seat

JSNIA3157ZZ

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COMPONENT PARTS

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METER SYSTEM : Component Description

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Unit

Description

Combination meter

Controls the following with the signals received from each unit via CAN communication and the sig-
nals from switches and sensors.
• Speedometer
• Tachometer
• Engine coolant temperature gauge
• Fuel gauge
• Engine oil pressure gauge
• Voltmeter
• Warning lamps
• Indicator lamps
• Meter illumination control
• Meter effect function
• Information display

Trip computer switch

Transmits the following signals to the combination meter.
• Enter switch signal
• Select switch signal

Trip reset and illumination con-
trol switch

Transmits the following signals to the combination meter.
• Trip reset switch signal
• Illumination control switch signal (+)
• Illumination control switch signal (

−

)

ECM

Transmits the following signals to the combination meter via CAN communication.
• Engine speed signal
• Engine coolant temperature signal
• Engine status signal
• Fuel consumption monitor signal

ABS actuator and electric unit 
(control unit)

Transmits the vehicle speed signal to the combination meter via CAN communication.

IPDM E/R

Transmits the oil pressure switch signal to the BCM via CAN communication.

BCM

Transmits the following signals to the combination meter via CAN communication.
• Oil pressure switch signal
• Position light request signal
• Dimmer signal
• Door switch signal
• Meter ring illumination request signal
• Starter relay status signal

TCM

Transmits the shift position signal to the combination meter via CAN communication.

A/T shift selector

Transmits the following signals to the combination meter.
• Manual mode signal
• Non-manual mode signal
• Manual mode shift up signal
• Manual mode shift down signal

Fuel level sensor unit

Transmits the fuel level sensor signal to the combination meter.

Oil pressure switch

Transmits the oil pressure switch signal to the IPDM E/R.

Ambient sensor

Transmits the ambient sensor signal to the combination meter.

A/C auto amp.

Transmits the A/C auto amp. connection recognition signal to the combination meter.

Parking brake switch

Transmits the parking brake switch signal to the combination meter.

Washer level switch

Transmits the washer level switch signal to the combination meter.

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COMPONENT PARTS

CLOCK : Component Parts Location

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:  Clock

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SYSTEM

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SYSTEM

METER SYSTEM

METER SYSTEM : System Diagram

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METER SYSTEM : System Description

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COMBINATION METER

• The combination meter receives necessary signals from each unit, switch, and sensor to control the follow-

ing functions.

- Measuring instruments
- Warning lamps
- Indicator lamps
- Meter illumination control
- Meter effect function
- Information display
• The combination meter incorporates a buzzer function that sounds an audible alarm with the integrated

buzzer device. Refer to 

WCS-5, "Combination Meter"

 for further details.

• The combination meter includes an on board diagnosis function.
• The combination meter can be diagnosed with CONSULT-III.

METER CONTROL FUNCTION LIST

JSNIA2995GB