battery INFINITI FX35 2007 Service Manual

INTERIOR ROOM LAMP LT-157
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Revision: 2006 July 2007 FX35/FX45
Timer control is canceled under the following conditions.

Driver door is locked [when locked keyfob, power window main switch (door lock and unlock switch) or
door key cylinder switch].

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

Ignition switch ON.
INTERIOR LAMP BATTERY SAVER CONTROL
If lamps is left “ON”, it will not be turned out even when door is closed.
BCM turns off lamps automatically to save battery 30 minutes after ignition switch is turned off.
BCM controls lamps listed below:

Ignition key hole illumination

Front step lamp (driver side)

Front step lamp (passenger side)

Rear step lamp RH

Rear step lamp LH

Front door inside handle illumination (driver side)

Front door inside handle illumination (passenger side)

Rear door inside handle illumination RH

Rear door inside handle illumination LH

Personal lamp RH

Personal lamp LH

Interior room lamp (without DVD player)

Map lamp

Vanity mirror lamp

Luggage room lamp
After lamps turn OFF by battery saver system, lamps illuminate again when

signal from keyfob, or power window main switch (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, or turned ignition knob switch.
Interior lamp battery saver control period can be changed by the function setting of CONSULT-II.

LT-168
INTERIOR ROOM LAMP
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Values for BCMNKS002YQ
Te r m i n a l
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
1PU Ignition keyhole illumi-
nation signal OFF
Ignition keyhole
illumination Illuminated Battery voltage
Not illuminated Approx. 0 V
12 P/B Front door switch (pas-
senger) signal OFF
Front door switch
(passenger side) ON (open) Approx. 0 V
OFF (closed) Approx. 7.5 - 8.0 V
13 P/L Rear door switch RH
signal OFF Rear door switch
RH ON (open) Approx. 0 V
OFF (closed) Battery voltage
22 OR Power window switch
serial link — Power window
main switch (door
lock and unlock
switch) and power
window sub-
switch (front pas-
senger side) (door
lock and unlock
switch) Lock or unlock switch
ON
NOTE:
Approx. 10 seconds
after door lock and
unlock switch (driver
side and passenger
side) is turned “LOCK”
or “UNLOCK”. Approx. 9.0 - 9.5 V
OFF Battery voltage
37 B/W 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 L/R Battery power supply OFF — Battery voltage
47 Y/R Step lamp signal OFF Any door is open (ON) Approx. 0 V
All doors are closed (OFF) Battery voltage
48 PU/W Interior room lamp,
map lamp, front door
inside handle and rear
door inside handle illu-
mination output signal OFF Any door switch ON (open) Approx. 0 V
OFF (closed) Battery voltage
49 B Ground ON — Approx. 0 V
52 B Ground ON — Approx. 0 V
55 G Battery power supply OFF — Battery voltage
58 L Back door switch sig-
nal OFF Back door closure
motor (door
switch) ON (open) Approx. 0 V
OFF (closed) Battery voltage
SKIB3419J
PKIC0930E

INTERIOR ROOM LAMP LT-169
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Revision: 2006 July 2007 FX35/FX45
How to Proceed With Trouble DiagnosisNKS002YR
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 5 2 , "
System Description" .
3. Perform Preliminary Check. Refer to LT- 1 7 0 , "
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
62 W Front door switch
(driver side) signal OFF
Front door switch
(driver side) ON (open) Approx. 0 V
OFF (closed) Approx. 7.0 - 7.5 V
63 P Rear door switch LH
signal OFF Rear door switch
LH ON (open) Approx. 0 V
OFF (closed) Battery voltage
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J

LT-170
INTERIOR ROOM LAMP
Revision: 2006 July 2007 FX35/FX45
Preliminary CheckNKS002YS
CHECK FOR POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
Check for blown fuses.
Refer to LT-160, "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-
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
M
22
Ignition switch ON or START position 1
(+) (-) Ignition switch position
BCM con- nector Terminal OFF ON
M3 38 Ground Approx. 0 V Battery voltage
M4 42 Battery voltage Battery voltage
55 Battery voltage Battery voltage
PKIA7520E
BCM connector Terminal Ground Continuity
M4 49
Ye s
52
SKIA5294E

INTERIOR ROOM LAMP LT-171
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Revision: 2006 July 2007 FX35/FX45
CONSULT-II Functions (BCM)NKS002YT
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-II BASIC OPERATION
Refer to GI-38, "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 the items will be monitored.
5. Touch “START”.
6. Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop recording, touch “STOP”.
BCM diagnosis part Diagnosis mode Description
INT LAMP WORK SUPPORT Changes 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 monitors them.

INTERIOR ROOM LAMP LT-173
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Revision: 2006 July 2007 FX35/FX45
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”.
5. Touch “CHANGE SETT”.
6. The setting will be changed and “CUSTOMIZING COMPLETED ” will be displayed.
7. Touch “END”.
Display Item List
DATA MONITOR (BATTERY SAVER)
Operation Procedure
1. Touch “BATTERY SAVER” 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”.
Display Item List
Item Description CONSULT-II
ROOM LAMP TIME SET Interior lamp battery saver timer setting can be changed. MODE 1: 30min
MODE 2: 60min
ALL SIGNALS Monitors all the signals.
SELECTION FROM MENU Selects items and monitor them.
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from the ignition switch sig-
nal.
KEY ON SW “ON/OFF” Displays “Key inserted (ON)/key removed (OFF)” status judged from the key switch signal.
DOOR SW - DR “ON/OFF” Displays status of the driver door as judged from the driver door switch signal. (Door is
open: ON/Door is closed: OFF)
DOOR SW - AS “ON/OFF” Displays status of the passenger door as judged from passenger door switch signal. (Door
open (ON)/Door closed (OFF))
DOOR SW - RR “ON/OFF” Displays status of rear door as judged from the rear door switch (RH) signal. (Door is open:
ON/Door is closed: OFF)
DOOR SW - RL “ON/OFF” Displays status of rear door as judged from the rear door switch (LH) signal. (Door is open:
ON/Door is closed: OFF)
BACK DOOR SW “ON/OFF” Displays status of the back door as judged from back door switch signal. (Door open (ON)/
Door closed (OFF))
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 detec-
tion switch in driver door.
CDL UNLOCK SW “ON/OFF” Displays “Door unlocked (OFF)” status, determined from locking detection switch in pas-
senger door.
I − KEY LOCK
NOTE 1“ON/OFF” Displays “Locked (ON)/Other (OFF)” status, determined from lock signal.

LT-174
INTERIOR ROOM LAMP
Revision: 2006 July 2007 FX35/FX45
NOTE:

1: Vehicle with Intelligent Key system display this item.

2: Vehicle with remote keyless entry system display this item.
ACTIVE TEST (BATTERY SAVER)
Operation Procedure
1. Touch “BATTERY SAVER” 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
Interior Room Lamp Control Does Not OperateNKS002YU
1. CHECK EACH SWITCH
Select “BCM” on CONSULT-II. With “INT LAMP” data monitor to
make sure switches listed in display item list turn ON-OFF linked
with switch operation. Refer to LT- 1 7 2 , "
Display Item List" for
switches and their functions.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
2. ACTIVE TEST
1. Select “BCM” on CONSULT-II. Select “INT LAMP” active test.
2. When interior room lamp switch is in DOOR position, use active test to make sure interior room lamp operates.
OK or NG
OK >> Replace BCM. Refer to BCS-14, "Removal and Installa-
tion of BCM" .
NG >> GO TO 3.
I − KEY UNLOCK NOTE 1“ON/OFF” Displays “Unlocked (ON)/Other (OFF)” status, determined from unlock signal.
KEYLESS LOCK
NOTE 2“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
NOTE 2“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.
Monitor item Contents
Test item Description
BATTERY SAVER Interior room lamp can be operated by ON −OFF operations.
PKIB3532E
PKIA7641E

INTERIOR ROOM LAMP LT-175
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Revision: 2006 July 2007 FX35/FX45
3. CHECK INTERIOR ROOM LAMP INPUT
1. Turn ignition switch OFF.
2. Check voltage between interior room lamp harness connector R53 terminal 1 and ground.
OK or NG
OK >> GO TO 6.
NG >> GO TO 4.
4. CHECK INTERIOR ROOM LAMP
1. Disconnect interior room lamp connector.
2. Check continuity between interior room lamp.
OK or NG
OK >> GO TO 5.
NG >> Replace Interior room lamp.
5. CHECK INTERIOR ROOM LAMP CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M4 terminal 41 and interior room lamp harness connector R53 terminal 2.
OK or NG
OK >> Replace BCM if interior room lamp does not work after setting the connector again. Refer to BCS-14, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
6. CHECK INTERIOR ROOM LAMP CIRCUIT
1. Disconnect BCM connector and interior room lamp connector.
2. Check continuity between BCM harness connector M4 terminal 48 and interior room lamp harness connector R53 terminal 1.
OK or NG
OK >> Replace BCM if interior room lamp does not work after setting the connector again. Refer to BCS-14, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector. 1 – Ground : Battery voltage.
PKIA5249E
Interior room lamp Condition Continuity
12 Interior room lamp switch is DOOR. Yes
Interior room lamp switch is OFF or ON. No
PKIB3509E
41 – 2 : Continuity should exist.
SKIA5934E
48 – 1 : Continuity should exist.
SKIA5933E

LT-176
INTERIOR ROOM LAMP
Revision: 2006 July 2007 FX35/FX45
Map Lamp Control Does Not OperateNKS002YV
1. CHECK EACH SWITCH
Select “BCM” on CONSULT-II. With “INT LAMP” data monitor to
make sure switches listed in display item list turn ON-OFF linked
with switch operation. Refer to LT- 1 7 2 , "
Display Item List" for
switches and their functions.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
2. ACTIVE TEST
1. Select “BCM” on CONSULT-II. Select “INT LAMP” active test.
2. When map lamp switch is in DOOR position, use active test to make sure map lamp operates.
OK or NG
OK >> Replace BCM. Refer to BCS-14, "Removal and Installa-
tion of BCM" .
NG >> GO TO 3.
3. CHECK MAP LAMP INPUT
1. Turn ignition switch OFF.
2. Check voltage between map lamp harness connector R52 termi- nal 2 and ground.
OK or NG
OK >> GO TO 6.
NG >> GO TO 4.
4. CHECK MAP LAMP
1. Disconnect map lamp connector.
2. Check continuity between map lamp.
OK or NG
OK >> GO TO 5.
NG >> Replace Map lamp.
PKIB3532E
Map lamp should operate.
PKIA7641E
2 – Ground : Battery voltage.
PKIA5253E
Map lamp Condition Continuity
23 Map lamp switch is DOOR. Yes
Map lamp switch is OFF. No
PKIA6054E

LT-178
INTERIOR ROOM LAMP
Revision: 2006 July 2007 FX35/FX45
Personal Lamp Control Does Not OperateNKS002YW
1. CHECK REAR DOOR SWITCH
Select “BCM” on CONSULT-II. With “INT LAMP” data monitor to
make sure switch “DOOR SW-RR” and “DOOR SW-RL” turn ON-
OFF linked with rear door (RH and LH) operation.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning rear door switch.
2. CHECK PERSONAL LAMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect personal lamp connector.
3. Open rear door.
4. Check continuity between personal lamp harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK PERSONAL LAMP INPUT
Check voltage between personal lamp harness connector and
ground.
OK or NG
OK >> Replace personal lamp. Refer to LT- 1 8 5 , "PERSONAL
LAMP" .
NG >> GO TO 4.
PKIA7640E
Personal lamp con-
nector Terminal
Ground Continuity
RH R55 1 Ye s
LH R54 1
PKIA5257E
(+) (-)
Vo l ta g e
Personal lamp con-
nector Terminal
Ground
RH R55
2 Battery voltage
LH R54
PKIA5258E