2007 INFINITI M35 Front door

INTERIOR ROOM LAMP
LT-267
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2. When getting off the vehicle

Lamps illuminate by timer operation when the push-button ignition switch (push switch) is turned OFF.*

Lamps illuminate by timer operation after any door is open and then all doors are closed.*

Timer operation stops and lamps are OFF, when driver side door is locked.
*: This setting can be changed by CONSULT-II. Refer to LT- 2 8 3 , "
WORK SUPPORT (INT LAMP)" .
POWER SUPPLY AND GROUND
Power is supplied at all times

through 50A fusible link (letter F, located in fuse and fusible link block)

to BCM terminal 55,

through 10A fuse [No. 21, located in fuse block (J/B)]

to BCM (body control module) terminal 42,

through 10A fuse [No. 22, located in fuse block (J/B)]

to key slot terminal 1.
With the ignition switch in the ON or START position, power is supplied

through 15A fuse [No. 1, located in fuse block (J/B)]

to BCM terminal 38.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to BCM terminal 11.
Ground is supplied

to BCM terminal 52

through grounds M16 and M70.
When the driver side door is opened, ground is supplied

to BCM terminal 62

through front door switch driver side terminal 2

through case ground of front door switch driver side.
When the passenger side door is opened, ground is supplied

to BCM terminal 12

through front door switch passenger side terminal 2

through case ground of front door switch passenger side.
When the rear door LH is opened, ground is supplied

to BCM terminal 63

through rear door switch LH terminal 2

through case ground of rear door switch LH.
When the rear door RH is opened, ground is supplied

to BCM terminal 13

through rear door switch RH terminal 2

through case ground of rear door switch RH.
When driver side door is unlocked by door lock and unlock switch, BCM receives a ground signal

to BCM terminal 22

through power window main switch (door lock and unlock switch) terminal 14 or power window sub-switch
(front passenger side) (door lock and unlock switch) terminal 16

through power window main switch (door lock and unlock switch) terminal 17 or power window sub-switch
(front passenger side) (door lock and unlock switch) terminal 11

through grounds M16 and M70.
When the driver side door is unlocked by the front door lock assembly (driver side) (key cylinder switch), BCM
receives a ground signal

to BCM terminal 22

through power window main switch (door lock and unlock switch) terminals 14 and 6

LT-268
INTERIOR ROOM LAMP
Revision: 2007 April2007 M35/M45

through front door lock assembly (driver side) (key cylinder switch) terminals 5 and 4

through grounds M16 and M70.
When a signal, or combination of door open signals is received by BCM, ground is supplied

to foot lamp driver side and passenger side terminals 2

to personal lamp LH and RH terminals 1

to map lamp terminal 2 and 5

through BCM terminal 48,

to step lamp (driver side, passenger side, rear LH and RH) terminals 2

to kicking plate illumination (driver side and passenger side) terminals 2

through BCM terminal 47.
With power and ground supplied, the interior lamps illuminate.
SWITCH OPERATION
When any front door switch is ON (door is opened), ground is supplied

to step lamp (driver side, passenger side, rear LH and RH) terminals 2

to kicking plate illumination (driver side and passenger side) terminals 2

through BCM terminal 47.
And power is supplied

through BCM terminal 41

to step lamp (driver side, passenger side, rear LH and RH) terminals 1

to kicking plate illumination (driver side and passenger side) terminals 1.
When any door switch is ON (door is opened) and personal lamp and map lamp is DOOR position, ground is
supplied

to personal lamp LH and RH terminal 1

to map lamp terminals 2 and 5

through BCM terminal 48.
And power is supplied

through BCM terminal 41

to personal lamp LH and RH terminals 3

to map lamp terminal 3.
When map lamp switch is ON, ground is supplied

to map lamp terminal 1

through grounds M16 and M70.
And power is supplied

through BCM terminal 41

to map lamp terminal 3.
When personal lamp LH and RH switch is ON, ground is supplied

to personal lamp LH and RH terminals 2

through grounds M16 and M70.
And power is supplied

through BCM terminal 41

to personal lamp LH and RH terminals 3.
When trunk lid lock assembly (trunk room lamp switch) is ON, ground is supplied

to trunk room lamp (upper and lower) terminals 2

through trunk lid lock assembly (trunk room lamp switch) terminals 1 and 2

through grounds B405 and B475.
And power is supplied

through BCM terminal 41

to trunk room lamp (upper and lower) terminals 1.
When vanity mirror lamp LH and RH switch is ON, ground is supplied

INTERIOR ROOM LAMP
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to vanity mirror lamp LH and RH terminals 2

through grounds M16 and M70.
And power is supplied

through BCM terminal 41

to vanity mirror lamp (LH and RH) terminals 1.
ROOM LAMP TIMER OPERATION
BCM controls applicable lamps to illuminate for 15 seconds (can be set maximum 30 seconds) by timer oper-
ation under following conditions. BCM also controls applicable lamps to brighten for 1 second (can be set max-
imum 5 seconds) when turned ON, or to dim for 3 seconds (can be set maximum 5 seconds) when turned
OFF. (Timer operating time and dimming/brightening time can be changed with CONSULT-II. Refer to LT- 2 8 3 ,
"WORK SUPPORT (INT LAMP)" .) This control operates as follows.
Applicable lamps

Room lamp system: map lamp, foot lamp (driver side and passenger side) and personal lamp (rear LH
and rear RH).
BCM controls room lamp timer operation under following condition.

Condition 1: Door lock state changes.*
BCM judges as the door lock is unlocked under either case below.
–The Intelligent Key unit sends door lock/unlock trunk open request signal (driver side unlock or passenger
side unlock) to BCM through CAN communication line by unlock operation of intelligent key, outside key
antenna and front door request switch (driver side) or outside key antenna and front door request switch
(passenger side).
–Key cylinder switch state (unlock) signal is sent to BCM through power window serial link when front door
lock assembly (driver side) (key cylinder switch) is unlocked (ON) by power window main switch unlock
operation.
And fulfills all the conditions below.
–The engine switch (push switch) is OFF.
–All the doors are closed.
*: This setting can be changed by CONSULT-II. Refer to LT- 2 8 3 , "
WORK SUPPORT (INT LAMP)" .

Condition 2: Any door switch state changes.*
The BCM terminal value of operated door switch is changed when any door is opened and then closed.
From that BCM judges as the door is opened and then closed.
And fulfills all the conditions below.
–The engine switch (push switch) is OFF.
–All the doors are closed.
*: This setting can be changed by CONSULT-II. Refer to LT- 2 8 3 , "
WORK SUPPORT (INT LAMP)" .

Condition 3: Engine switch (push switch) state changes.*
The Intelligent Key unit judges as the engine switch (push switch) is OFF and sends push-button ignition
switch (push switch) signal to PDU (power distribution unit) when push-button ignition switch (push
switch) turned OFF. Then PDU (power distribution unit) turns OFF, IGN power supply and ACC power
supply.
And fulfills the conditions below.
–All the doors are closed.
*:This setting can be changed by CONSULT-II. Refer to LT- 2 8 3 , "
WORK SUPPORT (INT LAMP)" .
NOTE:
When timer operation signal is input during former timer operation, BCM goes for latter timer operation.

LT-270
INTERIOR ROOM LAMP
Revision: 2007 April2007 M35/M45
ROOM LAMP TIMER OPERATING TIME
CONDITIONS FOR CANCELING TIMER
Timer operation is cancelled in any of the following conditions.

Driver door is locked.

Any door is opened.

Turn ignition switch is ACC or ON.
ROOM LAMP TIMER INAPPLICABLE LAMPS OPERATION

Step lamp system: step lamp (driver side, passenger side, rear LH and rear RH) and kicking plate illumi-
nation (driver side and passenger side).
Step lamp system lamps are ON/OFF linked with any door (driver side, passenger side, rear LH and rear
RH) opened and then closed.

Vanity mirror lamp LH and RH.
Operated side vanity mirror lamp is ON/OFF linked with vanity mirror opened and then closed.

Trunk room lamp (lower) and trunk room lamp (upper).
Trunk room lamps (lower and upper) are ON/OFF linked with trunk opened and then closed.
INTERIOR ROOM LAMP BATTERY SAVER FUNCTION
Applicable lamps

Room lamp system: map lamp, foot lamp (driver side and passenger side) and personal lamp (rear LH
and rear RH).

Step lamp system: step lamp (driver side, passenger side, rear LH and rear RH) and kicking plate illumi-
nation (driver side and passenger side).

Vanity mirror lamp LH and RH.

Trunk room lamp (lower) and trunk room lamp (upper).
If the any applicable lamp is left illuminated, BCM turns OFF the battery saver output power supply 30 or 60
minutes to prevent run down of the battery. (Factory setting time is 30 minutes. And timer setting can be
changed by CONSULT-II. Refer to LT- 2 8 5 , "
WORK SUPPORT (BATTERY SAVER)" .)

When the push-button ignition switch (push switch) is turned from ON to OFF, the timer is activated.

If any of the following door switch signal condition is changed with the push-button ignition switch (push
switch) in OFF position, the timer is activated when the change is occurred.
Door switch signals (driver side, passenger side, rear LH and RH), front door lock assembly (driver side) (key
cylinder switch) signal and Intelligent Key unlock signal.
SKIB4934E

LT-280
INTERIOR ROOM LAMP
Revision: 2007 April2007 M35/M45
Terminals and Reference Values for BCMNKS003T4
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
11 VIgnition switch
(ACC)ACC — Battery voltage
12 PFront door switch
passenger side
signalOFFFront door switch
passenger sideON (open) Approx. 0 V
OFF (closed)
Approx. 8.0 - 8.5 V
13 O/LRear door switch
RH signalOFF Rear door switch RHON (open) Approx. 0 V
OFF (closed)
Approx. 8.5 - 9.0 V
22 GPower window
serial linkOFFPower window main
switch (door lock and
unlock switch) and
power window sub-
switch (front passenger
side) (door lock and
unlock switch)Lock or unlock switch
ON
NOTE:
10 seconds just after
door lock and unlock
switch (driver side and
passenger side) is
turned “LOCK” or
“UNLOCK”.
OFF Battery voltage
37 LG Key switch signal OFF Intelligent Key is inserted into key slot. Battery voltage
Intelligent Key is removed from key slot. Approx. 0 V
38 WIgnition power
supplyON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
41 RBAT saver out-
put signalOFF — Battery voltage
42 PBattery power
supplyOFF — Battery voltage
47 VStep lamp output
signalOFF Any door switchON (open) Approx. 0 V
OFF (close) Battery voltage
48 BRRoom lamp
output signalON Any door switchON (open) Approx. 0 V
OFF (close) Battery voltage
— All doors are closedTurn ignition switch ON
→ OFFApprox. 0 V
(When room lamp timer
is operating)
Turn ignition switch ON Battery voltage
SKIB3419J
SKIB4865E
PKIC0930E

INTERIOR ROOM LAMP
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How to Perform Trouble DiagnosesNKS003T5
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 2 6 6 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 2 8 2 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the interior room lamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
52 B Ground ON — Approx. 0 V
55 WBattery power
supplyOFF — Battery voltage
57 SBTrunk switch
signalOFFTrunk room lamp
switchON (open) Approx. 0 V
OFF (close) Battery voltage
62 VFront door switch
driver side signalOFFFront door switch
driver sideON (open) Approx. 0 V
OFF (closed)
Approx. 7.5 - 8.0 V
63 R/GRear door switch
LH signalOFF Rear door switch LHON (open) Approx. 0 V
OFF (closed)
Approx. 7.5 - 8.0 V Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4960J
PKIB4960J

LT-292
INTERIOR ROOM LAMP
Revision: 2007 April2007 M35/M45
Step LampNKS003TE
BULB REPLACEMENT
1. Insert a screwdriver or similar tool and remove lens (1).
2. Remove bulb.
REMOVAL AND INSTALLATION
Remove step lamp integral with door trim. Refer toEI-37, "Removal and Installation" .
Kicking Plate IlluminationNKS003TF
BULB REPLACEMENT
Replacement integral with front kicking plate inner.
REMOVAL AND INSTALLATION
Remove integral with front kicking plate inner. Refer to EI-37, "Removal and Installation" .
Trunk Room Lamp (Upper/Lower)NKS003TG
BULB REPLACEMENT
1. Insert a screwdriver or similar tool and remove lens (1).
2. Remove bulb (2).
REMOVAL AND INSTALLATION
Removal
1. Insert a screwdriver or similar tool and remove trunk room lamp
(1).
2. Disconnect connector.
Installation
Installation is the reverse order of removal. Step lamp : 12V - 5W
SKIB4188E
Trunk room lamp (upper/lower) : 12V - 5W
SKIB4198E
SKIB4199E

LT-294
ILLUMINATION
Revision: 2007 April2007 M35/M45
ILLUMINATION OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R
across the CAN communication lines. The CPU located in the IPDM E/R controls the tail lamp relay coil,
which, when energized, directs power

through IPDM E/R terminal 21

to combination meter terminal 13

to LDW switch (illumination) terminal 5 (with lane departure warning)

to VDC off switch (illumination) terminal 3

to trunk lid opener switch (illumination) terminal 3

to combination switch (spiral cable) terminal 24

to door mirror remote control switch (illumination) terminal 16

to AFS switch (illumination) terminal 5 (with AFS)

to rear sunshade front switch (illumination) terminal 5 (with rear control switch)

to A/T illumination terminal 1

to snow mode switch (illumination) terminal 5 (AWD models)

to rear control cancel switch (illumination) terminal 4 (with rear control switch)

to clock terminal 3

to multifunction switch terminal 3

to audio unit terminal 9

to DVD player terminal 18 (with DVD player)

to NAVI control unit terminal 61 (with navigation system)

to AV control unit terminal 61 (without navigation system)

to climate controlled seat switch driver side (illumination) terminal 7 (with climate controlled seat)

to climate controlled seat switch passenger side (illumination) terminal 7 (with climate controlled seat)

to ashtray illumination (rear LH) terminal 1

to ashtray illumination (rear RH) terminal 1

to illumination control switch terminal 1

to cigarette lighter socket (illumination) terminal 2

to map lamp (illumination) terminal 8

to power window main switch illumination terminal 1

to glove box lamp terminal 1

to rear control switch terminal 2

to rear power seat switch RH (illumination) terminal 4 (with rear control switch)

to rear heated seat switch RH (illumination) terminal 7 (with rear control switch)

to rear sunshade cancel relay terminal 6 (with rear control switch)

to automatic return cancel switch (illumination) terminal 4 (with rear control switch)

to rear power seat switch LH (illumination) terminal 4 (with rear control switch) and

to rear heated seat switch LH (illumination) terminal 7 (with rear control switch),

through Intelligent Key unit terminal 12

to push button ignition switch (illumination) terminal 3.
Ground is supplied

to combination meter terminal 14

to combination meter terminal 9, 10 and 11

to push button ignition switch (illumination) terminal 2

to LDW switch (illumination) terminal 4 (with lane departure warning)

to VDC off switch (illumination) terminal 4

to trunk lid opener switch (illumination) terminal 4

to combination switch (spiral cable) terminal 25