Infiniti QX4. Electrical System (2003 year). Manual — part 7
MEL303Q
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ILLUMINATION
Wiring Diagram — ILL — (Cont’d)
EL-101
MEL395R
ILLUMINATION
Wiring Diagram — ILL — (Cont’d)
EL-102
System Description
NBEL0290
POWER SUPPLY AND GROUND
NBEL0290S01
Power is supplied at all times:
쐌
through 7.5A fuse [No. 24, located in the fuse block (J/B)]
쐌
to key switch terminal 2 and
쐌
to smart entrance control unit terminal 49.
When the key is removed from ignition key cylinder, power is interrupted:
쐌
through key switch terminal 1
쐌
to smart entrance control unit terminal 25.
With the ignition key switch in the ON or START position, power is supplied:
쐌
through 7.5A fuse [No. 11, located in the fuse block (J/B)]
쐌
to smart entrance control unit terminal 27.
Ground is supplied:
쐌
to smart entrance control unit terminals 43 and 64
쐌
through body grounds M77 and M111.
When the front driver side door is opened, ground is supplied:
쐌
through body grounds B11, B22 and D210
쐌
to front door switch (LH) terminal 2
쐌
from front door switch (LH) terminal 1
쐌
to smart entrance control unit terminal 1.
When the front passenger side door is opened, ground is supplied:
쐌
through body grounds terminals B55 and B75
쐌
to front door switch (RH) terminal 2
쐌
from front door switch (RH) terminal 1
쐌
to smart entrance control unit terminal 2.
When any other door (except front door) is opened, ground is supplied to smart entrance control unit termi-
nal 3 in the same manner as the front door switch.
When the front LH door is unlocked by front door key cylinder switch, ground is supplied
쐌
through body grounds M77 and M111
쐌
to front door key cylinder switch terminal 2
쐌
through front door key cylinder switch terminal 1
쐌
to power window main switch terminal 6.
Power window main switch terminal 14 send unlock signal to smart entrance control unit terminal 33 with serial
link communication line.
When back door is unlocked by back door key cylinder switch, ground is supplied
쐌
through body grounds B11, B22 and D210
쐌
to back door key cylinder switch terminal 4
쐌
from back door key cylinder terminal 2
쐌
to smart entrance control unit terminal 10.
When a signal, or combination of signals is received by the smart entrance control unit, ground is supplied:
쐌
through smart entrance control unit terminal 31
쐌
to interior lamp terminal 2.
With power and ground supplied, the interior lamp illuminates.
SWITCH OPERATION
NBEL0290S02
When interior lamp switch is ON, ground is supplied:
쐌
through case grounds of interior lamp
쐌
to interior lamp.
And power is supplied:
쐌
to interior lamp terminal 1
쐌
from smart entrance control unit terminal 50.
When spot lamp (LH and/or RH) is ON, ground is supplied:
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INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
System Description
EL-103
쐌
through body grounds M4, M66 and M147
쐌
to spot lamp terminal 2.
And power is supplied:
쐌
to spot lamp terminal 1
쐌
from smart entrance control unit terminal 50.
When vanity mirror illumination (LH and/or RH) is ON, ground is supplied:
쐌
through body grounds M4, M66 and M147
쐌
to vanity mirror illuminations (LH and RH) terminals 2.
And power is supplied:
쐌
to vanity mirror illuminations (LH and RH) terminals 1
쐌
from smart entrance control unit terminal 50.
When luggage room lamp switch is ON, ground is supplied:
쐌
through body grounds B11, B22 and D210
쐌
to luggage room lamp terminal 2.
And power is supplied:
쐌
to luggage room lamp terminal 1
쐌
from smart entrance control unit terminal 50.
With power and ground supplied, interior lamps turn ON.
INTERIOR LAMP TIMER OPERATION
NBEL0290S03
When interior lamp switch is in the “DOOR” position, the smart entrance control unit keeps the interior lamp
illuminated for about 30 seconds when:
쐌
unlock signal is supplied from door lock and unlock switch while all doors are closed and key is out of
ignition key cylinder
쐌
unlock signal is supplied from keyfob or door key cylinder while driver’s door is locked and all doors are
closed
쐌
key is removed from ignition key cylinder while all doors are closed
쐌
driver’s door is opened and then closed while key is out of the iginition key cylinder. (However, if the driv-
er’s door is closed with the key inserted in the ignition key cylinder after the driver’s door is opened with
the key removed, the timer is operated.)
The timer is canceled when:
쐌
driver’s door is locked,
쐌
driver’s door is opened, or
쐌
ignition switch is turned ON.
When driver’s door is locked, interior room lamp timer is canceled as described before.
ON-OFF CONTROL
NBEL0290S04
When the driver side door, front passenger door, rear LH or RH door is opened, the interior room lamp turns
on while the interior room lamp switch is in the “DOOR” position.
INTERIOR LAMP BATTERY SAVER
NBEL0290S05
The lamp turns off automatically when interior lamp, luggage room lamp, spot lamp and/or vanity mirror illu-
mination is illuminated with the ignition key is in OFF position, if the lamp remains lit by the door switch open
signal or if the lamp switch is in ON position for more than 30 minutes.
After lamps turn OFF by the battery saver system, the lamps illuminate again when:
쐌
driver’s door is locked or unlocked,
쐌
door is opened or closed,
쐌
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-II
(EL-113).
INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
System Description (Cont’d)
EL-104
Schematic
NBEL0291
MEL407P
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INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
Schematic
EL-105
Wiring Diagram — INT/L —
NBEL0292
MEL601P
INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
Wiring Diagram — INT/L —
EL-106
MEL713N
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INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
Wiring Diagram — INT/L — (Cont’d)
EL-107
MEL396R
INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
Wiring Diagram — INT/L — (Cont’d)
EL-108
MEL306Q
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INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
Wiring Diagram — INT/L — (Cont’d)
EL-109
MEL307Q
INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
Wiring Diagram — INT/L — (Cont’d)
EL-110
SEL670Y
CONSULT-II Inspection Procedure
=NBEL0293
“INT LAMP”/“BATTERY SAVER”
NBEL0293S01
1.
Turn ignition switch “OFF”.
2.
Connect “CONSULT-II” and “CONSULT-II CONVERTER” to
the data link connector.
SKIA3098E
3.
Turn ignition switch “ON”.
4.
Touch “START (NISSAN BASED VHCL)”.
SEL398Y
5.
Touch “SMART ENTRANCE”.
If “SMART ENTRANCE” is not indicated, go to GI-42, “CON-
SULT-II Data Link Connector (DLC) Circuit”.
SEL399Y
6.
Touch “INT LAMP” or “BATTERY SAVER”.
SEL400Y
7.
Select diagnosis mode.
“DATA MONITOR”, “ACTIVE TEST” and “WORK SUPPORT”
are available for “INT LAMP” and “BATTERY SAVER”.
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INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
CONSULT-II Inspection Procedure
EL-111
CONSULT-II Application Items
NBEL0294
“INT LAMP”
NBEL0294S01
Data Monitor
NBEL0294S0101
Monitored Item
Description
IGN ON SW
Indicates [ON/OFF] condition of ignition switch.
DOOR SW-RR
Indicates [ON/OFF] condition of ignition switch.
KEY ON SW
Indicates [ON/OFF] condition of key switch.
DOOR SW-DR
Indicates [ON/OFF] condition of front door switch LH.
DOOR SW-AS
Indicates [ON/OFF] condition of front door switch RH.
LOCK SW DR/AS
Indicates [ON/OFF] condition of front door lock switch.
UNLK SW DR/AS
Indicates [ON/OFF] condition of front door lock switch.
KEY CYL LK-SW
Indicates [ON/OFF] condition of front door key cylinder switch.
KEY CYL UN-SW
Indicates [ON/OFF] condition of front door key cylinder switch.
LK BUTTON/SIG
Indicates [ON/OFF] condition of unlock signal from keyfob.
UN BUTTON/SIG
Indicates [ON/OFF] condition of unlock signal from keyfob.
Active Test
NBEL0294S0102
Test Item
Description
INT LAMP
This test enables to check interior lamp operation.
When “ON” on CONSULT-II screen is touched:
쐌
Interior lamp turns on when the switch is at DOOR.
(Smart entrance control unit supplies power and ground to interior lamp.)
IGN ILLUM
This test enables to check ignition key hole illumination operation. The illumination turns on when
“ON” on CONSULT-II screen is touched.
STEP LAMP
This test enables to check step lamp operation.
The illumination turns on when “ON” on CONSULT-II screen is touched.
NOTE:
Even though ignition key hole illumination and step lamp are actually displayed on the CONSULT-II screen,
those are not equipped, therefore, they cannot be activated.
Work Support
NBEL0294S0103
Work Item
Description
ROOM LAMP TIMER SET
Interior lamp timer mode can be changed by mode setting. Selects ON-OFF of the room lamp
illumination at the time the driver door is unlocked.
쐌
MODE 1 (ON)/MODE 2 (OFF)
NOTE:
Even though ignition keyhole illumination and step lamp are actually displayed on the CON-
SULT-II screen, those are not equipped, therefore, they cannot be activated.
“BATTERY SAVER”
NBEL0294S02
Data Monitor
NBEL0294S0201
Monitored Item
Description
IGN ON SW
Indicates [ON/OFF] condition of ignition switch.
DOOR SW-RR
Indicates [ON/OFF] condition of ignition switch.
KEY ON SW
Indicates [ON/OFF] condition of key switch.
DOOR SW-DR
Indicates [ON/OFF] condition of front door switch LH.
INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
CONSULT-II Application Items
EL-112
Monitored Item
Description
DOOR SW-AS
Indicates [ON/OFF] condition of front door switch RH.
LOCK SW DR/AS
Indicates [ON/OFF] condition of front door lock switch.
UNLK SW DR/AS
Indicates [ON/OFF] condition of front door lock switch.
KEY CYL LK-SW
Indicates [ON/OFF] condition of front door key cylinder switch.
KEY CYL UN-SW
Indicates [ON/OFF] condition of front door key cylinder switch.
LK BUTTON/SIG
Indicates [ON/OFF] condition of unlock signal from keyfob.
UN BUTTON/SIG
Indicates [ON/OFF] condition of unlock signal from keyfob.
Active Test
NBEL0294S0202
Test Item
Description
BATTERY SAVER
This test enables to check interior lamp and spot lamp and vanity mirror illuminations opera-
tions.
When touch “ON” on CONSULT-II screen.
쐌
Interior lamp turns on when the switch is in ON.
(Smart entrance control unit supplies power to interior lamp.)
쐌
Spot lamp and vanity mirror illuminations turn on when the switch is in ON.
(Smart entrance control unit supplies power to spot lamp, and vanity mirror illuminations.)
Work Support
NBEL0294S0203
Work Item
Description
ROOM LAMP BAT SAV SET
Interior lamp battery saver control period can be changed by mode setting. Selects interior lamp
battery saver control period between two modes.
쐌
MODE 1 (30 minutes)/MODE 2 (60 minutes)
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INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
CONSULT-II Application Items (Cont’d)
EL-113
Trouble Diagnoses for Interior Lamp Timer
=NBEL0489
DIAGNOSTIC PROCEDURE 1
NBEL0489S01
SYMPTOM: Interior lamp timer does not operate.
1
CHECK IGNITION ON SIGNAL
With CONSULT-II
Check ignition switch ON signal (“IGN ON SW”) in “DATA MONITOR” mode with CONSULT-II.
SEL318W
Without CONSULT-II
Check voltage between smart entrance control unit harness connector M122 terminal 27 (W/B) and ground.
SEL003Y
OK or NG
OK
䊳
GO TO 2.
NG
䊳
Check the following.
쐌
7.5A fuse [No. 11, located in fuse block (J/B)]
쐌
Harness for open or short between smart entrance control unit and fuse
INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
Trouble Diagnoses for Interior Lamp Timer
EL-114
2
CHECK FRONT DOOR SWITCH LH INPUT SIGNAL
With CONSULT-II
Check driver door switch signal (“DOOR SW-DR”) in “DATA MONITOR” mode with CONSULT-II.
SEL319WB
Without CONSULT-II
Check voltage between smart entrance control unit harness connector M121 terminal 1 (G/OR) and ground.
SEL004YD
OK or NG
OK
䊳
GO TO 4.
NG
䊳
GO TO 3.
3
CHECK FRONT DOOR SWITCH LH
Check the following.
쐌
Continuity between front door switch LH connector B9 terminals 1 and 2
쐌
Continuity between front door switch LH connector B9 terminal 3 and ground
SEL277Y
OK or NG
OK
䊳
Check the following.
쐌
Front door switch LH ground circuit and condition
쐌
Harness for open or short between smart entrance control unit and front door switch
LH
NG
䊳
Replace front door switch LH.
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INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
Trouble Diagnoses for Interior Lamp Timer (Cont’d)
EL-115
4
CHECK FRONT DOOR SWITCH RH INPUT SIGNAL
With CONSULT-II
Check driver door switch signal (“DOOR SW-AS”) in “DATA MONITOR” mode with CONSULT-II.
SEL153YA
Without CONSULT-II
Check voltage between smart entrance control unit harness connector M121 terminal 2 (Y) and ground.
SEL152YB
OK or NG
OK
䊳
GO TO 6.
NG
䊳
GO TO 5.
5
CHECK FRONT DOOR SWITCH RH
Check the following.
쐌
Continuity between front door switch RH connector B68 terminals 1 and 2
쐌
Continuity between front door switch RH connector B68 terminal 3 and ground
SEL278Y
OK or NG
OK
䊳
Check the following.
쐌
Front door switch RH ground circuit and condition
쐌
Harness for open or short between smart entrance control unit and front door switch
RH
NG
䊳
Replace front door switch RH.
INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
Trouble Diagnoses for Interior Lamp Timer (Cont’d)
EL-116
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