2008 INFINITI FX35 ignition switch

INTERIOR ROOM LAMPLT-153
< SERVICE INFORMATION >
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Terminal and Reference Value for BCMINFOID:0000000001328410
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
OFFIgnition 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 OFFRear 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 un-
lock switch (driver side
and passenger side) is
turned “LOCK” or “UN-
LOCK”.
Approx. 9.0 - 9.5 V
OFF Battery voltage
37 B/W Key-in detection switch
signal OFFVehicle 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) Ba ttery 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 OFFBack door closure
motor (door
switch) ON (open) Approx. 0 V
OFF (closed) Battery voltage
SKIB3419J
PKIC0930E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LT-154
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
How to Proceed with Trouble Diagnosis
INFOID:0000000001328411
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-138, "
System Description".
3. Perform Preliminary Check. Refer to LT-154, "
Preliminary Check".
4. Check symptom and repair or r eplace the cause of malfunction.
5. Does interior room lamp operate normally ? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckINFOID:0000000001328412
CHECK FOR POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES
Check for blown fuses.
Refer to LT- 1 4 5 , "Wiring Diagram - ROOM/L -".
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate caus e of malfunction before installing new fuse. Refer to PG-
3.
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
62 W Front door switch (driv-
er side) signal
OFFFront 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) Ba
ttery voltage
Te r m i n a l
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J
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 Te r m i n a l O F F O N
M3 38 GroundApprox. 0 V Battery voltage
M4 42 Battery voltage Battery voltage
55 Battery voltage Battery voltage
PKIA7520E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INTERIOR ROOM LAMPLT-155
< SERVICE INFORMATION >
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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.
CONSULT-III Functions (BCM)INFOID:0000000001328413
CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-III BASIC OPERATION
Refer to GI-34, "Description".
WORK SUPPORT (INT LAMP)
Display Item List
Reference between “MODE” and “TIME” for “TURN ON/OFF”
DATA MONITOR (INT LAMP)
Display Item List
BCM connector Terminal
GroundContinuity
M4 49
Ye s
52
SKIA5294E
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-III
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 123 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 the ignition switch sig-
nal.
KEY ON SW “ON/OFF” Displays “Key inse rted (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)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LT-156
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
NOTE:
 1: Vehicle with Intelligent Key system display this item.
 2: Vehicle with remote keyless entry system display this item.
ACTIVE TEST (INT LAMP)
Display Item List
NOTE:
This item is displayed, but cannot be tested.
WORK SUPPORT (BATTERY SAVER)
Display Item List
DATA MONITOR (BATTERY SAVER)
Display Item List
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 lo cked (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 passen-
ger door.
I − KEY LOCK
NOTE 1“ON/OFF” Displays “Locked (ON)/Other (OFF)” status, determined from lock signal.
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
INT LAMP Interior room lamp can be operated by any ON-OFF operations.
IGN ILLUM Ignition key hole illumination can be operated by ON-OFF operation.
STEP LAMP TEST All step lamp can be operated by ON-OFF operation.
LUGGAGE LAMP TEST
NOTE—
Item Description CONSULT-III
ROOM LAMP TIME SET Interior lamp battery saver timer setting can be changed. MODE 1: 30min
MODE 2: 60min
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 insert ed (ON)/key removed (OFF)” status judged from the key switch signal.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LT-158
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
OK >> Replace BCM. Refer to BCS-13, "Removal and Installation of BCM".
NG >> GO TO 3.
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-13, "
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 LT-155, "
CON-
SULT-III Functions (BCM)".
NG >> Repair harness or connector.
Map Lamp Control Does Not OperateINFOID:0000000001381757
1.CHECK EACH SWITCH
CONSULT-III DATA MONITOR 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.
PKIB3511E
48 – 1 : Continuity should exist.
PKIB3510E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INTERIOR ROOM LAMPLT-159
< SERVICE INFORMATION >
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1. Select “INT LAMP” of BCM data monitor item.
2. Check that switches listed in display item list turn ON-OFF linked with switch operation. Refer to LT-155,
"CONSULT-III Functions (BCM)" for switches and their functions.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
2.CHECK BETWEEN BC M AND MAP LAMP
CONSULT-III ACTIVE TEST
1. Select “INT LAMP” of BCM (INT LAMP) active test item.
2. With operating the test item, check the map lamp oper ation (When map lamp switch is in DOOR position).
OK or NG
OK >> Replace BCM. Refer to BCS-13, "Removal and Installation 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.
5.CHECK MAP LAMP CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M4 terminal 41 and map lamp harness connector R52 terminal 3.
OK or NG
OK >> Replace BCM if map lamp does not work after setting the connector again. Refer to BCS-13, "
Removal and
Installation of BCM".
NG >> Repair harness or connector.
6.CHECK MAP LAMP CIRCUIT Map lamp should operate.
2 – Ground : Battery voltage.
PKIA5253E
Map lamp Condition Continuity
23 Map lamp switch is DOOR. Yes
Map lamp switch is OFF. No
PKIA6054E
41 – 3 : Continui
ty should exist.
PKIB3515E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LT-160
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
1. Disconnect BCM connector and map lamp connector.
2. Check continuity between BCM harness connector M4 terminal48 and map lamp harness connector R52 terminal 2.
OK or NG
OK >> Replace BCM if map lamp does not work after setting the connector again. Refer to BCS-13, "
Removal and
Installation of BCM".
NG >> Repair harness or connector.
Personal Lamp Control Does Not OperateINFOID:0000000001381758
1.CHECK REAR DOOR SWITCH
CONSULT-III DATA MONITOR
1. Select “INT LAMP” of BCM data monitor item.
2. Check that switches listed in display item list turn ON-OFF linked with switch operation. Refer to LT-155,
"CONSULT-III Functions (BCM)" for switches and their functions.
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 (RH and LH) harness connectors 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-166, "Removal and
Installation".
NG >> GO TO 4.
4.CHECK PERSONAL LAMP CIRCUIT 48 – 2 : Continuity should exist.
PKIB3514E
Personal lamp connector Terminal
GroundContinuity
RH R55 1 Ye s
LH R54 1
PKIA5257E
Te r m i n a l s
Vo l ta g e
(Approx.)
(+) (-)
Personal lamp connector Terminal Ground
RH R55
2 Battery voltage
LH R54
PKIA5258E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INTERIOR ROOM LAMPLT-161
< SERVICE INFORMATION >
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1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and personal lamp (RH and LH) harness connectors.
OK or NG
OK >> Replace BCM if personal lamp does not work after set- ting the connector again. Refer to BCS-13, "
Removal and Installation of BCM".
NG >> Repair harness or connector.
Ignition Keyhole Illumination Control Does Not OperateINFOID:0000000001381759
1.CHECK EACH SWITCH
CONSULT-III DATA MONITOR
1. Select “INT LAMP” of BCM data monitor item.
2. Check that switches listed in display item list turn ON-OFF linked with switch operation. Refer to LT-155,
"CONSULT-III Functions (BCM)" for switches and their functions.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
2.ACTIVE TEST
CONSULT-III ACTIVE TEST
1. Select “IGN ILLUM” of BCM (INT LAMP) active test item.
2. With operating the test item, check the ignition ke y hole illumination operation (When interior room lamp
switch is in DOOR position).
OK or NG
OK >> Replace BCM. Refer to BCS-13, "Removal and Installation of BCM".
NG >> GO TO 3.
3.CHECK IGNITION KEY HOLE ILLUMINATION INPUT
1. Turn ignition switch OFF.
2. Check voltage between ignition key hole illumination harness connector M24 terminal 1 and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 6.
4.CHECK IGNITION KEY HOLE ILLUMINATION BULB
BCM Personal lamp Continuity
Connector Terminal Connector Terminal
M4 41 RH R55
2Yes
LH R54
PKIB3517E
Ignition key hole illumination
should operate.
1 – Ground : Battery voltage.
PKIA5260E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C