2007 NISSAN 350Z ignition

INTERIOR ROOM LAMP
LT-129
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Revision: 2006 November2007 350Z
POWER SUPPLY AND GROUND
Power is supplied at all times

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

to key switch terminal 2,

through 10A fuse [No.18, located in fuse block (J/B)]

to BCM terminal 42,

through 40A fusible link (letter F, located in fuse, fusible link and relay box)

to BCM terminal 55.
When key is removed from ignition key cylinder, power is interrupted

through key switch terminal 1

to BCM terminal 37.
With ignition switch in ON or START position, power is supplied

through 10A fuse [No.1, located in fuse block (J/B)]

to BCM terminal 38.
When map lamp and vanity mirror lamp power is supplied at times

through BCM terminal 41

to ignition key hole illumination terminal1

to map lamp terminal 3 (Coupe models)

to map lamp terminal 2 (Roadster models)

to luggage room lamp terminal 1 (Coupe models)

to trunk room lamp terminal 1 (Roadster models) and

to vanity mirror lamp LH and RH terminals 1.
Ground is supplied

to BCM terminal 52

through grounds M30 and M66.
When driver side door is opened, ground is supplied

through case ground of driver side door switch

to BCM terminal 62.
When passenger side door is opened, ground is supplied

through case ground of passenger side door switch

to BCM terminal 12.
When back door is opened, ground is supplied (Coupe models)

through grounds B5, B6, D105 and T14

to back door switch terminal 3

through back door switch terminal 1

to BCM terminal 58.
When trunk lid is opened, ground is supplied (Roadster models)

through grounds B5, B6 and T14

to trunk lid lock assembly (trunk room lamp switch) terminal 1

through trunk lid lock assembly (trunk room lamp switch) terminal 3

to BCM terminal 57.
When the driver side door or passenger side door is unlocked by door lock and unlock switch, The BCM
receives unlock signal with power window serial link

through grounds M30 and M66

to power window main switch (door lock and unlock switch) terminal 15 or power window sub switch (door
lock and unlock switch) terminal 11

through power window main switch (door lock and unlock switch) terminal 12 and power window sub
switch (door lock and unlock switch) terminal 16

to BCM terminal 22.

LT-130
INTERIOR ROOM LAMP
Revision: 2006 November2007 350Z
When the driver side door is unlocked by door key cylinder switch, The BCM receives information by commu-
nicating with power window main switch

through grounds M30 and M66

to door key cylinder switch terminal 2

through door key cylinder switch terminal 1

to power window main (door lock and unlock switch) switch terminal 7

through power window main switch (door lock and unlock switch) terminal 12

to BCM terminal 22.
When a signal, or combination of signals is received by BCM, ground is supplied

through BCM terminal 48

to map lamp terminal 2 (Coupe models)

to map lamp terminal 3 (Roadster models).
With power and ground are supplied, map lamp illuminates.
SWITCH OPERATION
When map lamp switch is ON, ground is supplied

to map lamp terminal 1 (Coupe models)

to map lamp terminal 1 (Roadster models)

through grounds M30 and M66.
And power is supplied

through BCM terminal 41

to ignition key hole illumination terminal 1

to map lamp terminal 3 (Coupe models)

to map lamp terminal 2 (Roadster models).
When vanity mirror lamp LH and RH is ON, ground is supplied

to vanity mirror lamp LH and RH terminals 2

through grounds M30 and M66.
And power is supplied

through BCM terminal 41

to vanity mirror lamp terminal 1.
MAP LAMP TIMER OPERATION
When the map lamp switch is in the DOOR position, and when all conditions below are met, BCM performs
timer control (maximum 30 seconds) for map lamp ON/OFF.
In addition, when map lamp turns ON or OFF there is gradual brightening or dimming over 1 second.
Power is supplied at all times

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

through key switch terminal 2.
When all doors are closed (all door switches OFF) and key is removed from key cylinder (key switch OFF),
power will not be supplied to BCM terminal 37.
Ground is supplied

through BCM terminal 22

to power window main switch (door lock and unlock switch) terminal 12.
At this time, BCM detects that driver door is unlocked. It determines that map lamp timer operation conditions
are met, and turns map lamp ON for 30 seconds.
When all doors are closed (all door switches OFF) and key is in key cylinder (key switch ON),
Power is supplied

through key switch terminal 1

to BCM terminal 37.
When the key is removed from key switch (key switch OFF), power supply to BCM terminal 37 is terminated.
BCM detects that key has been removed. It determines that map lamp timer conditions are met, and turns
map lamp ON for 30 seconds.

INTERIOR ROOM LAMP
LT-131
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Revision: 2006 November2007 350Z
When driver door opens → closes, and key is not inserted in key switch (key switch OFF), BCM terminal 62
changes between 0V (door open) → 5V (door closed). BCM determines that conditions for spot lamp opera-
tion are met and turns interior lamp ON for 30 seconds.
Timer control is canceled under the following conditions.

Driver door is locked (When locked key fob or power window main switch (door lock and unlock switch,
door key cylinder switch).

Driver door is opened (driver door switch turns ON).

Ignition switch ON.
INTERIOR LAMP BATTERY SAVER CONTROL
If the room lamp remains illuminated by door switch open signal, or if room lamp switch is in the ON position
for more than 30 minutes after the ignition switch is turned to the OFF position, BCM will automatically turn off
map lamp, luggage room lamp (Coupe models), trunk room lamp (Roadster models) and vanity mirror lamp.
After lamps turn OFF by battery saver system, the lamps illuminate again when

signal from key fob, door lock and unlock switch, or key cylinder is locked or unlocked,

door is opened or closed,

key is removed from ignition key cylinder or inserted in ignition key cylinder.
Interior lamp battery saver control period can be changed by the function setting of CONSULT-III.

INTERIOR ROOM LAMP
LT-141
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Revision: 2006 November2007 350Z
Terminals and Reference Values for BCMNKS004ZN
*1: Roadster models, *2: Coupe models
How to Proceed with Trouble DiagnosisNKS004ZO
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 2 8 , "
System Description" .
3. Perform preliminary check. Refer to LT- 1 4 2 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does interior room lamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
1PUIgnition keyhole illumination
signalOFFDoor is locked. (SW OFF) Battery voltage
Door is unlocked. (SW ON) Approx. 0 V
12 P Front door switch AS signal OFF Front door switch ASON (open) Approx. 0 V
OFF (closed) Battery voltage
22 YPower window switch serial
linkON —
37 B/RKey-in detection switch sig-
nalOFFVehicle 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 signalOFF30 minutes after ignition switch is turned
to OFF.Approx. 0 V
ON — Battery voltage
42 GY Battery power supply OFF — Battery voltage
48 P Map lamp output signal OFFMap lamp door
switch: DOOR posi-
tionAny
door
switchON
(open)Approx. 0 V
OFF
(closed)Battery voltage
52 B Ground ON — Approx. 0 V
55 R Battery power supply OFF — Battery voltage
57*
1R/WTrunk room lamp switch sig-
nalOFFTrunk room lamp
switchON (open) Approx. 0 V
OFF (closed) Battery voltage
58*
2R/W Back door switch signal OFFLuggage room lamp
switch ON (open) Approx. 0 V
OFF (closed) Battery voltage
62 L Front door switch DR signal OFF Front door switch DRON (open) Approx. 0 V
OFF (closed) Battery voltage
64GY/R
*1
BR*2Trunk room lamp*1 or lug-
gage lamp*2 switch signalOFFTrunk room lamp*
1
or back door*2
switchON (open) Approx. 0 V
OFF (closed) Battery voltage
PKIA7023E

LT-142
INTERIOR ROOM LAMP
Revision: 2006 November2007 350Z
Preliminary CheckNKS004ZP
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to LT- 1 3 3 , "
Wiring Diagram — ROOM/L —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
Check continuity between BCM and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Unit Power source Fuse and fusible link No.
BCMBatteryF
18
21
Ignition switch ON or START position 1
Terminals Ignition switch position
(+)
(-) OFF ON
BCM connector Terminal
M90 38
GroundApprox. 0 V Battery voltage
M9142 Battery voltage Battery voltage
55 Battery voltage Battery voltage
PKIB5199E
BCM connector Terminal
GroundContinuity
M91 52 Yes
PKIB5198E

INTERIOR ROOM LAMP
LT-143
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Revision: 2006 November2007 350Z
CONSULT-III Function (BCM)NKS004ZQ
CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.
WORK SUPPORT
Display Item List
Reference between “MODE” and “TIME” for “TURN ON/OFF”
DATA MONITOR
Display Item List
NOTE:
This item is displayed, but cannot be monitored.BCM diagnosis part Diagnosis mode Description
INT LAMPWORK 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-III
SET I/L D−UNLCK INTCONThe 30 seconds glowing function interior room lamps and ignition keyhole illumi-
nation can be selected when driver door is released (unlocked). ON/OFF
ROOM LAMP ON TIME SETThe 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 SETThe 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
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from ignition switch signal.
KEY ON SW “ON/OFF” Displays “Key inserted (ON)/key removed (OFF)” status judged from key switch signal.
DOOR SW - DR “ON/OFF”Displays status of driver door as judged from driver door switch signal. (Door is open: ON/Door
is closed: OFF)
DOOR SW - AS “ON/OFF”Displays “Door open (ON)/Door closed (OFF)” status, determined from passenger door switch
signal.
DOOR SW - RR
NOTE“OFF” —
DOOR SW - RL
NOTE“OFF” —
BACK DOOR SW “ON/OFF”

Displays status of back door as judged from back door switch signal. (Coupe models)

Displays status of rear trunk hood as judged from trunk lamp switch signal. (Roadster mod-
els)
KEY CYL LK - SW “ON/OFF” Displays “Door locked (ON) status, determined from key cylinder lock switch in driver door.
KEY CYL UN - SW “ON/OFF” Displays “Door unlocked (OFF) status, determined from key cylinder lock switch in driver door.
CDL LOCK SW “ON/OFF”Displays “Door locked (ON)/Door unlocked (OFF) status, determined from locking detection
switch in driver door.
CDL UNLOCK SW “ON/OFF”Displays “Door unlocked (OFF)” status, determined from locking detection switch in passenger
door.
KEYLESS LOCK “ON/OFF” Displays “Locked (ON)/Other (OFF)” status, determined from lock signal.
KEYLESS UNLOCK “ON/OFF” Displays “Unlocked (ON)/Other (OFF)” status, determined from unlock signal.

LT-144
INTERIOR ROOM LAMP
Revision: 2006 November2007 350Z
ACTIVE TEST
Display Item List
NOTE:
This item is displayed, but cannot be tested.
Map Lamp Control Does Not Operate (Coupe models)NKS004ZR
1. CHECK BETWEEN EACH SWITCH AND BCM
1. Select "INT LAMP" of BCM data monitor item.
2. Make sure switches listed in display item list turn ON-OFF linked with switch operation. Refer to LT- 1 4 3 ,
"Display Item List" for switches and their functions.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
2. CHECK BETWEEN BCM AND MAP LAMP
1. Select "INT LAMP" of BCM active test item.
2. With operating the test item, check the map lamp operation (When map lamp switch is in DOOR position).
OK or NG
OK >> Replace BCM. Refer to BCS-17, "Removal and Installation of BCM" .
NG >> GO TO 3.
3. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between map lamp harness connector and
ground.
OK or NG
OK >> GO TO 6.
NG >> GO TO 4.
Test item Description
INT LAMP Map lamp can be operated by any ON−OFF operations.
IGN ILLUM
NOTE—
STEM LAMP TEST
NOTE—
LUGGAGE LAMP TEST

Luggage room lamp can be operated by any ON−OFF operations. (Coupe models)

Trunk room lamp can be operated by any ON−OFF operations. (Roadster models)
Map lamp should operate.
Te r m i n a l
Voltage
(Approx.) (+)
(-)
Map lamp connector Terminal
R52 3 Ground Battery voltage
SKIB7672E

INTERIOR ROOM LAMP
LT-145
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4. CHECK MAP LAMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and map lamp connector.
3. Check continuity between BCM harness connector and map
lamp harness connector.
OK or NO
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK SHORT CIRCUIT
Check continuity between map lamp harness connector and ground.
OK or NG
OK >> Replace BCM if map lamp does not work after setting
the connector again. Refer to BCS-17, "
Removal and
Installation of BCM" .
NG >> Repair harness or connector.
6. CHECK MAP LAMP
1. Turn ignition switch OFF.
2. Disconnect map lamp connector.
3. Check continuity between map lamp.
OK or NG
OK >> GO TO 7.
NG >> Replace map lamp.
Terminals
Continuity BCM Map lamp
Connector Terminal Connector Terminal
M91 41 R52 3 Yes
PKIB5070E
Map lamp connector Terminal
GroundContinuity
R52 3 No
PKIA6053E
Te r m i n a l
Condition Continuity
Map lamp
32Map lamp switch is DOOR. Yes
Map lamp switch is OFF. No
SKIB7673E