Infiniti Q45. Manual - part 639

IVMS (LAN)

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Component Parts and Harness Connector Location

NKS001G6

Sleep/Wake-Up Control

NKS001G7

SLEEP CONTROL

“Sleep control” prevents unnecessary power consumption. After the following conditions are met, the BCM
suspends the communication between itself and all LCUs. The whole IVMS is set in the “sleep” mode.

●

Ignition switch “OFF”

●

All electrical loads (in the IVMS) “OFF”

●

Timer “OFF”

CKIM0010E

SEL465TA

LAN-6

[LAN]

IVMS (LAN)

WAKE-UP CONTROL

As shown above, when the BCM detects a “wake-up” signal, it wakes up the whole system and starts commu-
nicating again. When the “sleep” mode of all LCUs is canceled, the BCM returns to the normal control mode.
When any one of the following switches are turned ON, the “sleep” mode is canceled:

●

All switches combined or connected with BCM.

●

All switches combined or connected with LCU.

Fail-Safe System

NKS001G8

Fail-safe system operates when the signal from LCU is judged to be malfunctioning by BCM. If LCU sends no
signal or an irregular signal to BCM a certain number of times in succession, the IVMS is set in a fail-safe con-
dition. In the fail-safe condition, the electrical loads controlled by the switch on the questionable LCU will be
operated at fail-safe mode.

CONSULT-II Function (IVMS)

NKS001G9

CONSULT-II executes the following functions by combining data reception and command transmission via the
communication line from BCM: IVMS communication inspection, work support, self-diagnosis, data monitor
and active test display.

DIAGNOSTIC ITEMS DESCRIPTION

DIAGNOSTIC ITEMS APPLICATION 

SEL466T

IVMS diagnosis 

position

 Diagnosis mode

Description

IVMS-
comm check

IVMS-
COMM DIAGNOSIS

Diagnoses continuity in the communication line(s), and of the function of the IVMS-com-
munication interface between the body control module and the local control units, 
accomplished by transmitting a signal from the body control module to the local control 
units.

WAKE-UP DIAGNOSIS

Diagnose the “wake-up” function of local control units by having a technician input the 
switch data into the local control unit that is in the temporary “sleep” condition.

Each system 
inspection

WORK SUPPORT

Changes the setting for each function.

SELF-DIAGNOSTIC 
RESULTS

Carries out self-diagnosis.

DATA MONITOR

Displays data relative to the body control module (BCM) input signals and various con-
trol related data for each system.

ACTIVE TEST

Turns on/off actuators, relay and according to the commands transmitted by the CON-
SULT-II unit.

BCM PART NUMBER

Displays BCM part No.

Test item

Diagnosed system

Diagnosis mode

IVMS 

COMM 

DIAGNO-

SIS

WAKE-UP 

DIAGNO-

SIS

WORK 

SUPPORT

SELF 

DIAGNOS-

TIC 

RESULTS

DATA 

MONITOR

ACTIVE 

TEST

IVMS-COMM CHECK 

IVMS communication 
and wake-up function

×

×

DOOR LOCK

Power door lock system

×

×

×

IVMS (LAN)

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X: Applicable
For diagnostic item in each control system, read the CONSULT-ll Operation Manual.

On Board Diagnosis

NKS001GA

ON BOARD DIAGNOSTIC RESULTS INDICATOR LAMP

Front map lamps and step lamps (all seats) act as the indicators for the on board diagnosis.

DIAGNOSTIC ITEM 

AUTO DRIVE
POSITIONER

●

Automatic drive posi-
tioner

●

Reverse interlock 
door mirror system

×

×

×

×

WIPER

Front wiper and washer 
system

×

×

REAR DEFOGGER

Rear window defogger

×

×

IGN KEY WARN ALM

Warning chime

×

×

LIGHT WARN ALM

Warning chime

×

×

SEAT BELT TIMER

Warning chime

×

×

THEFT WARNING
SYSTEM

Vehicle security
(Theft warning) system

×

×

×

STEP LAMP

Step lamps

×

×

MULTI-REMOTE
CONTSYS

Remote keyless entry 
system

×

×

×

INTERIOR
ILLUMINATION

Interior room lamp

×

×

×

SUNROOF RELAY

Sunroof

×

×

TRUNK OPEN

Trunk lid opener 

×

×

DOOR OPEN WARNING

Warning lamps

×

×

AUTO LIGHT SYSTEM

Headlamp

×

×

×

Test item

Diagnosed system

Diagnosis mode

IVMS 

COMM 

DIAGNO-

SIS

WAKE-UP 

DIAGNO-

SIS

WORK 

SUPPORT

SELF 

DIAGNOS-

TIC 

RESULTS

DATA 

MONITOR

ACTIVE 

TEST

Diagnosis item

Description

IVMS communication diagnosis

Diagnoses any error or inability of communication between BCM and LCUs.

Switch monitor

Monitors conditions of switches connected to BCM, LCUs and door control units.

Power door lock system self-diagnosis

Diagnoses malfunctions in each door lock actuator system.

Auto drive positioner self-diagnosis

Diagnoses malfunctions in each motor and sensor in the electrical load parts of the 
driver power seat system (sliding, reclining, and lifter [front/rear]), of the steering wheel 
system (tilt, telescoping) and of door mirror.

LAN-8

[LAN]

IVMS (LAN)

Removal and Installation of BCM

NKS002KA

REMOVAL

CAUTION:

Before servicing, disconnect the battery cable from the negative terminal.

1.

Remove dash side finisher.

2.

Remove SMJ harness connector mounting screw (A).

3.

Remove harness clip (B) and disconnect BCM connector.

4.

Remove BCM mounting screw (C) and remove BCM (1) from
the vehicle.

INSTALLATION

Installation is the reverse order of removal.

Removal and Installation of LCU

NKS002KB

●

Driver door control unit (LCU01): Refer to 

EI-40, "FRONT DOOR TRIM (DRIVER SIDE)"

 .

●

Driver seat control unit (LCU02): Refer to 

SE-182, "DRIVER SIDE POWER SEAT"

 .

●

Driver side door mirror control unit (LCU03): Refer to 

GW-83, "Component Parts and Harness Connector

Location"

 .

●

Passenger side door mirror control unit (LCU04): Refer to 

GW-83, "Component Parts and Harness Con-

nector Location"

 .

SKIB7611E