Infiniti G35 (V35). Manual - part 615

LT-140

INTERIOR ROOM LAMP

Terminals and Reference Values for BCM

NKS002PQ

CAUTION:

●

Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.

●

Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position.
Wiper dial position can be confirmed on CONSULT-II. Refer to 

LT-17, "DATA MONITOR"

 .

Terminal

No.

Wire 

color

Signal name

Measuring condition

Reference value

Ignition 

switch

Operation or condition

1

PU

Ignition keyhole illumi-
nation signal

OFF

Door is locked. (SW OFF)

Battery voltage

Door is unlocked. (SW ON)

Approx. 0 V

12

P

Passenger side door 
switch signal

OFF

Passenger side 
door switch

ON (open)

Approx. 0 V

OFF (closed)

Battery voltage

22

Y

Power window switch 
serial link

—

—

37

B/P

Key-in detection 
switch signal

OFF

Vehicle key is removed.

Approx. 0 V

Vehicle key is inserted.

Battery voltage

38

W/L

Ignition power supply

ON

—

Battery voltage

39

L

CAN 

−

 

H

—

—

—

40

P

CAN 

−

 

L

—

—

—

41

R/B

Battery saver output 
signal

OFF

30 minutes after ignition switch is turned to 
OFF

Approx. 0 V 

ON

—

Battery voltage

42

GY

Battery power supply

OFF

—

Battery voltage

47

Y/PU

Step lamp signal

OFF

Any door is open (ON)

Approx. 0 V

All doors are closed (OFF)

Battery voltage

48

PU/R

Map lamp output sig-
nal

OFF

Map lamp switch:
DOOR position

Any 
door 
switch

ON (open)

Approx. 0 V

OFF (closed)

Battery voltage

52

B

Ground

ON

—

Approx. 0 V

55

W/R

Battery power supply

OFF

—

Battery voltage

57

R

Trunk room lamp 
switch signal 

OFF

Trunk room lamp 
switch

ON (open)

Approx. 0 V

OFF (closed)

Battery voltage

62

Y

Driver side door switch 
signal

OFF

Driver side door 
switch

ON (open)

Approx. 0 V

OFF (closed)

Battery voltage

64

R/W

Trunk room lamp sig-
nal

OFF

Trunk room lamp

ON (open)

Approx. 0 V

OFF (closed)

Battery voltage

PIIA2344J

INTERIOR ROOM LAMP

LT-141

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How to Proceed With Trouble Diagnosis

NKS002PR

1.

Confirm the symptom or customer complaint.

2.

Understand operation description and function description. Refer to 

LT-128, "System Description"

 .

3.

Perform the preliminary check. Refer to 

LT-141, "Preliminary Check"

 .

4.

Check symptom and repair or replace the malfunctioning parts.

5.

Does the interior room lamp operate normally? If YES, GO TO 6. If NO, GO TO 4.

6.

INSPECTION END

Preliminary Check

NKS002PS

CHECK POWER SUPPLY AND GROUND CIRCUIT

1. 

CHECK FUSES AND FUSIBLE LINK

Check for blown fuses and fusible link.

Refer to 

LT-134, "Wiring Diagram — ROOM/L —"

 .

OK or NG

OK

>> GO TO 2.

NG

>> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse

or fusible link. Refer to 

PG-3, "POWER SUPPLY ROUTING CIRCUIT"

 .

2. 

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector.

3.

Check voltage between BCM harness connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3. 

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

OK or NG

OK

>> INSPECTION END

NG

>> Repair harness or connector.

Unit

Power source

Fuse and fusible link No.

BCM

Battery

F

18

21

Ignition switch ON or START position

1

(+)

(

−

)

Ignition switch position

OFF

ON

BCM

connector

Terminal 

M1

38

Ground

Approx. 0 V

Battery voltage

M2

42

Battery voltage

Battery voltage

55

Battery voltage

Battery voltage

PKIA4951E

BCM

connector

Terminal

Ground

Continuity

M2

52

Yes

PKIA6256E

LT-142

INTERIOR ROOM LAMP

CONSULT-II Functions (BCM)

NKS002PT

CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.

CONSULT-II BASIC OPERATION

Refer to 

GI-37, "CONSULT-II Start Procedure"

 .

WORK SUPPORT (INT LAMP)
Operation Procedure

1.

Touch “INT LAMP” on “SELECT TEST ITEM” screen.

2.

Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.

3.

Touch “SET I/L D

−

 UNLCK INTCON” on “SELECT WORK ITEM” screen.

4.

Touch “START”.

5.

Touch “CHANGE SETT”.

6.

The setting will be changed and “CUSTOMIZING COMPLETED ” will be displayed.

7.

Touch “END”.

Display Item List

Reference between “MODE” and “TIME” for “TURN ON/OFF”

DATA MONITOR (INT LAMP)
Operation Procedure

1.

Touch “INT LAMP” on “SELECT TEST ITEM” screen.

2.

Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.

3.

Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on “SELECT MONITOR ITEM” screen.

4.

When “SELECTION FROM MENU” is selected, touch items to be monitored. When “ALL SIGNALS” is
selected, all items will be monitored.

5.

Touch “START”.

6.

Touch “RECORD” while monitoring, then the status of monitored item can be recorded. To stop recording,
touch “STOP”.

BCM diagnosis part

Diagnosis mode

Description

INT LAMP

WORK SUPPORT

Changes the setting for each function.

DATA MONITOR

Displays BCM input data in real time.

ACTIVE TEST

Operation of electrical loads can be checked by sending driving signal to them.

BATTERY SAVER

WORK SUPPORT

Changes the setting for each function.

DATA MONITOR

Displays BCM input data in real time.

ACTIVE TEST

Operation of electrical loads can be checked by sending driving signal to them.

Item

Description

CONSULT-II

SET I/L D

−

UNLCK INTCON

The 30 seconds glowing function interior room lamps and ignition keyhole illu-
mination can be selected when driver door is released (unlocked). 

ON/OFF

ROOM LAMP ON TIME SET

The time in order to escalate illumination can be adjusted when interior room 
lamps and ignition keyhole illumination is turned on.

MODE 1 – 7

ROOM LAMP OFF TIME SET

The time in order to diminish illumination can be adjusted when interior room 
lamps and ignition keyhole illumination is turned off.

MODE 1 – 7

MODE

1

2

3

4

5

6

7

Time  (sec.)

0.5

1

2

3

4

5

0

ALL SIGNALS

Monitors all the signals.

SELECTION FROM MENU

Selects items and monitor them.

INTERIOR ROOM LAMP

LT-143

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Display Item List

NOTE:
This item is displayed, but cannot be monitored.

ACTIVE TEST (INT LAMP)
Operation Procedure

1.

Touch “INT LAMP” on “SELECT TEST ITEM” screen.

2.

Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.

3.

Touch item to be tested and check operation of the selected item.

4.

During the operation check, touching “OFF” deactivates the operation.

Display Item List

WORK SUPPORT (BATTERY SAVER)
Operation Procedure

1.

Touch “BATTERY SAVER” on “SELECT TEST ITEM” screen.

2.

Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.

3.

Touch “ROOM LAMP BAT SAV SET” on “SELECT WORK ITEM” screen.

4.

Touch “START”.

Monitor item 

Contents

IGN ON SW

“ON/OFF”

Displays status (ignition switch IGN position: ON/other: OFF) of ignition switch judged from 
the ignition switch signal.

KEY ON SW

“ON/OFF”

Displays status (key inserted: ON/key removed: OFF) of key switch judged from the key 
switch signal.

DOOR SW - DR

“ON/OFF”

Displays status (door is open: ON/door is closed: OFF) of driver side door switch judged from 
the driver side door switch signal.

DOOR SW - AS

“ON/OFF”

Displays status (door is open: ON/door is closed: OFF) of passenger side door switch judged 
from the passenger side door switch signal.

DOOR SW - RR

 NOTE

“OFF”

—

DOOR SW - RL

 NOTE

“OFF”

—

BACK DOOR SW

 NOTE

“OFF”

—

KEY CYL LK - SW

“ON/OFF”

Displays status (door is locked: ON/other: OFF) of key cylinder lock switch from the door key 
cylinder switch (driver door) signal.

KEY CYL UN - SW

“ON/OFF”

Displays status (door is unlocked: ON/other: OFF) of key cylinder unlock switch from the 
door key cylinder switch (driver door) signal.

CDL LOCK SW

“ON/OFF”

Displays status (door is locked: ON/other: OFF) of lock switch from the door lock and unlock 
switch signal.

CDL UNLOCK SW

“ON/OFF”

Displays status (door is unlocked: ON/other: OFF) of unlock switch from the door lock and 
unlock switch signal.

I

−

 KEY LOCK

“ON/OFF”

Displays status (door is locked: ON/other: OFF) of intelligent key system lock signal from the 
intelligent key unit signal.

I

−

 KEY UNLOCK

“ON/OFF”

Displays status (door is locked: ON/other: OFF) of intelligent key system unlock signal from 
the intelligent key unit signal.

KEYLESS LOCK

“ON/OFF”

Displays status (door is locked: ON/other: OFF) of remote keyless entry system lock signal 
from the remote key less entry receiver signal.

KEYLESS UNLOCK

“ON/OFF”

Displays status (door is unlocked: ON/other: OFF) of remote keyless entry system unlock 
signal from the remote key less entry receiver signal.

Test item

Description

INT LAMP

Interior room lamp can be operated by ON

−

OFF operations.

IGN ILLUM

Ignition key hole illumination can be operated by ON

−

OFF operation.

STEP LAMP TEST

All step lamp can be operated by ON

−

OFF operation.

LUGGAGE LAMP TEST

Trunk room lamp can be operated by ON

−

OFF operations.