bcm terminal NISSAN 350Z 2007 Z33 Lighting System Owner's Guide

LT-94
COMBINATION SWITCH
Revision: 2006 November2007 350Z
4. BCM OUTPUT TERMINAL INSPECTION
1. Connect BCM and combination switch connectors.
2. Set wiper intermittent dial position 4.
3. Turn ignition switch ON.
4. Check BCM output terminal voltage waveform of suspect mal-
functioning system.
OK or NG
OK >> Open circuit in combination switch, GO TO 5.
NG >> Replace BCM. Refer to BCS-17, "
Removal and Installation of BCM" .
5. COMBINATION SWITCH INSPECTION
Referring to table below, perform combination switch inspection.
>> INSPECTION END
Removal and InstallationNKS004YR
Refer to LT- 8 4 , "LIGHTING AND TURN SIGNAL SWITCH" .
Suspect
systemTerminals
Reference value
(Approx.) (+)
(-) Combination
switch
connectorTerminal
1
M291
Ground
7.2 V 22
33
44
55
PKIC1020E
PKIB4960J
Procedure
1234567
Replace
lighting
switchConfirm
check
resultsOK INSPECTION END
Confirm
check
resultsOK INSPECTION END
Confirm
check
resultsOK INSPECTION END
NGReplace wiper
switchNG Replace switch base NGConfirm symptom
again

PARKING, LICENSE PLATE AND TAIL LAMPS
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PARKING, LICENSE PLATE AND TAIL LAMPSPFP:26550
Component Parts and Harness Connector LocationNKS004YZ
System DescriptionNKS004Z0
Control of parking, license plate, side maker and tail lamps operation is dependent upon the position of lighting
switch (combination switch). When the lighting switch is in the 1ST position, the BCM (body control module)
receives input signal requesting the parking, license plate, side marker and tail lamps to illuminate. This input
signal is communicated to the IPDM E/R (intelligent power distribution module engine room) through CAN
communication. The CPU (central processing unit) located in the IPDM E/R controls the tail lamp relay coil
and daytime light relay
* coil. These relay, when energized, directs power to parking, license plate, side marker
and tail lamps, which then illuminate.
NOTE:
Daytime light relay*: Canada models
OUTLINE
Power is supplied at all times

through 10A fuse (No.71, located in IPDM E/R)

to tail lamp relay, located in IPDM E/R, and

to CPU located in IPDM E/R,

through 15A fuse (No.78, located in IPDM E/R)

to CPU located in IPDM E/R,

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

to BCM terminal 55,

through 10A fuse [No.18, located in fuse block (J/B)]
PKIC4855E

LT-104
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2006 November2007 350Z

to BCM terminal 42.
With ignition switch in ON or START position, power is supplied

to CPU located in IPDM E/R,

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

to BCM terminal 38.
With ignition switch in 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 M30 and M66,

to IPDM E/R terminals 38 and 60

through grounds E17, E43 and B102 (with VDC system, navigation system or telephone)

through grounds E17, E43 and F152 (without VDC system, navigation system and telephone).
OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position, the BCM receives input signal requesting the parking,
license plate, side marker and tail lamps to illuminate. This input is communicated to the IPDM E/R through
the CAN communication lines. The CPU located in the IPDM E/R controls the tail lamp relay coil and daytime
light relay
* coil. These relay, when energized, directs power to parking, license plate, side marker and tail
lamps, which when energized, directs power

through IPDM E/R terminal 22 (USA models)

through daytime light relay terminal 5 (Canada models)

to front combination lamp LH terminals 6

to front combination lamp RH terminals 6

to rear combination lamp LH terminals 2

to rear combination lamp RH terminals 2

to license plate lamp LH terminal 2, and

to license plate lamp RH terminal 2.
Ground is supplied at all times

to front combination lamp LH terminal 8, and

to front combination lamp RH terminal 8

through grounds E17, E43 and B102 (with VDC system, navigation system or telephone)

through grounds E17, E43 and F152 (without VDC system, navigation system and telephone),

to rear combination lamp LH terminals 3

to rear combination lamp RH terminals 3

to license plate lamp LH terminal 1, and

to license plate lamp RH terminal 1

through grounds B5, B6, D105 and T14 (Coupe models)

through grounds B5, B6 and T14 (Roadster models).
With power and ground supplied, parking, license plate side marker and tail lamps illuminate.
NOTE:
Daytime light relay*: Canada models
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the parking, license, side marker and tail lamps remain illuminated for 5 minutes, then the
headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-III.

LT-112
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2006 November2007 350Z
Terminals and Reference Values for BCMNKS004Z5
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-III. Refer to LT- 9 1 , "
DATA MONITOR" .
Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
2GYCombination
switch input 5ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF Approx. 0 V
Any of the conditions below

Lighting switch 1ST

Lighting switch HIGH beam
(Operates only HIGH beam
switch)
Approx. 1.0 V
Lighting switch 2ND
Approx. 2.0 V
3L/WCombination
switch input 4ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF Approx. 0 V
Any of the conditions below

Lighting switch 2ND

Lighting switch PASSING
(Operates only PASSING switch)
Approx. 1.0 V
11 L GIgnition switch
(ACC)ACC — Battery voltage
PKIB4959J
PKIB4953J
PKIB4959J

LT-114
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2006 November2007 350Z
Terminals and Reference Values for IPDM E/RNKS004Z6
How to Proceed With Trouble DiagnosisNKS004Z7
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 0 3 , "
System Description" .
3. Carry out preliminary check. Refer to LT- 11 4 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Do parking, license plate, side marker and tail lamps operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckNKS004Z8
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to LT- 1 0 7 , "
Wiring Diagram — TAIL/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" .
39 L CAN − H— — —
40 P CAN − L— — —
42 GYBattery power
supplyOFF — Battery voltage
52 B Ground ON — Approx. 0 V
55 RBattery power
supplyOFF — Battery voltage Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
Terminal
No.Wire color Signal nameMeasuring condition
Reference value
Ignition switch Operation or condition
22 RParking, license plate,
side marker and tail lampON Lighting switch 1ST positionOFF Approx. 0 V
ON Battery voltage
38 B Ground ON — Approx. 0 V
48 L CAN − H— — —
49 P CAN − L—— —
60 B Ground ON — Approx. 0 V
Unit Power source Fuse and fusible link No.
BCMBatteryF
18
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6
IPDM E/R Battery 71

PARKING, LICENSE PLATE AND TAIL LAMPS
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2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector terminals and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector terminal and
ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
CONSULT-III Function (BCM)NKS004Z9
Refer to LT- 1 7 , "CONSULT-III Function (BCM)" in HEADLAMP (FOR USA).
Refer to LT- 4 9 , "
CONSULT-III Function (BCM)" in HEADLAMP (FOR CANADA).
CONSULT-III Function (IPDM E/R)NKS004ZA
Refer to LT- 1 8 , "CONSULT-III Function (IPDM E/R)" in HEADLAMP (FOR USA).
Refer to LT- 5 0 , "
CONSULT-III Function (IPDM E/R)" in HEADLAMP (FOR CANADA).
Terminals Ignition switch position
(+)
(−)OFF ACC ON
BCM
connectorTerminal
M9011
GroundApprox. 0 VBattery
voltageBattery
voltage
38 Approx. 0 V Approx. 0 VBattery
voltage
M9142Battery
voltageBattery
voltageBattery
voltage
55Battery
voltageBattery
voltageBattery
voltage
PKIB5197E
BCM connector Terminal
GroundContinuity
M91 52 Yes
PKIB5198E

INTERIOR ROOM LAMP
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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
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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
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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