2004 INFINITI FX35 ignition

LT-176
INTERIOR ROOM LAMP
Revision: 2004 November 2004 FX35/FX45
NOTE:
Vehicle with intelligent key system display this item.
ACTIVE TEST
Operation Procedure
1. Touch “INT LAMP” 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 “BACK” deactivates the operation.
Display Item List
Interior Room Lamp Control Does Not OperateAKS007FF
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 5 , "
Display Item List" for
switches and their functions.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
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 “Door open (ON)/Door closed (OFF)” status, determined from passenger door switch sig-
nal.
DOOR SW - RR “ON/OFF” Displays “Door open (ON)/Door closed (OFF)” status, determined from rear door switch RH signal.
DOOR SW - RL “ON/OFF” Displays “Door open (ON)/Door closed (OFF) ” status, determined from rear door switch LH signal.
BACK DOOR SW “ON/OFF” Displays “Door open (ON)/Door closed (OFF)” status, determined from back door switch signal.
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.
I− KEY LOCK
NOTE“ON/OFF” Displays “Locked (ON)/Other (OFF)” status, determined from lock signal.
I− KEY UNLOCK
NOTE“ON/OFF” Displays “Unlocked (ON)/Other (OFF)” status, determined from unlock signal.
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.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.
SKIA5930E

INTERIOR ROOM LAMP
LT-177
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Revision: 2004 November 2004 FX35/FX45
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-15, "Removal and Installa-
tion 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 (PU) and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 6.
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
48 (PU/W) and interior room lamp harness connector R53 termi-
nal 1 (PU).
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-15, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
LKIA0092E
1 (PU) – Ground : Battery voltage should exist.
PKIA5249E
Terminal
Condition Continuity
Interior room lamp
12 Interior room lamp switch is DOOR. Yes
Interior room lamp switch is OFF. No
PKIA7892E
48 (PU/W) – 1 (PU) : Continuity should exist.
PKIA5251E

LT-178
INTERIOR ROOM LAMP
Revision: 2004 November 2004 FX35/FX45
6. CHECK INTERIOR ROOM LAMP CIRCUIT
1. Disconnect BCM connector and interior room lamp connector.
2. Check continuity between BCM harness connector M4 terminal
41 (R/B) and interior room lamp harness connector R53 terminal
2 (R).
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-15, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
Map Lamp Control Does Not OperateAKS007IK
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 5 , "
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-15, "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 (PU) and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 6.41 (R/B) – 2 (R) : Continuity should exist.
PKIA5252E
SKIA5930E
Map lamp should operate.
LKIA0092E
2 (PU) – Ground : Battery voltage should exist.
PKIA5253E

LT-180
INTERIOR ROOM LAMP
Revision: 2004 November 2004 FX35/FX45
Personal Lamp Control Does Not OperateAKS007FG
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 the rear door.
4. When personal lamp switch is in “DOOR” position, check conti-
nuity between personal lamp harness connector R54 terminal 1
(P), R55 terminal 1 (L) 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 R54 and
R55 terminal 2 (R) and ground.
OK or NG
OK >> Replace personal lamp. Refer to LT- 1 5 1 , "Removal and
Installation" .
NG >> GO TO 4.
4. CHECK PERSONAL LAMP CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M4 terminal
41 (R/B) and personal lamp harness connector R54 and R55
terminal 2 (R).
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-15, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
SKIA5930E
1 (P), 1 (L) – Ground : Continuity should exist.
PKIA5257E
2 (R) – Ground : Battery voltage should exist.
PKIA5258E
41 (R/B) – 2 (R) : Continuity should exist.
PKIA5259E

INTERIOR ROOM LAMP
LT-181
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Revision: 2004 November 2004 FX35/FX45
Ignition key Hole illumination Control Does Not OperateAKS007FH
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 5 , "
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”.
2. Select “IGN ILLUM” active test to make sure lamp operates.
OK or NG
OK >> Replace BCM. Refer to BCS-15, "Removal and Installa-
tion 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 (R/B) and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 6.
4. CHECK IGNITION KEY HOLE ILLUMINATION BULB
1. Disconnect ignition key hole illumination connector.
2. Check continuity between ignition key hole illumination terminal
1 and 2.
OK or NG
OK >> GO TO 5.
NG >> Replace ignition key hole illumination. Refer to LT- 1 5 3 ,
"Bulb Replacement, Removal and Installation" .
SKIA5930E
Ignition key hole illumination should operate.
SKIA3992E
1 (R/B) – Ground : Battery voltage should exist.
PKIA5260E
1 – 2 : Continuity should exist.
PKIA7894E

LT-182
INTERIOR ROOM LAMP
Revision: 2004 November 2004 FX35/FX45
5. CHECK IGNITION KEY HOLE ILLUMINATION CIRCUIT
1. Disconnect BCM connector and key hole illumination connector.
2. Check continuity between BCM harness connector M3 terminal
1 (PU) and key hole illumination harness connector M24 termi-
nal 2 (PU).
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-15, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
6. CHECK IGNITION KEY HOLE ILLUMINATION CIRCUIT
1. Disconnect BCM connector and key hole illumination connector.
2. Check continuity between BCM harness connector M4 terminal
41 (R/B) and key hole illumination harness connector M24 termi-
nal 1 (R/B).
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-15, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
All Step Lamps Do Not OperateAKS007FI
1. CHECK EACH DOOR SWITCH
Select “BCM” on CONSULT-II. With “INT LAMP” data monitor to
make sure switches listed below turn ON-OFF linked with switch
operation.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
2. CHECK STEP LAMP INPUT
1. Turn ignition switch OFF.
2. Check voltage between front door driver side step lamp harness
connector D9 terminal 1 (R) and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.1 (PU) – 2 (PU) : Continuity should exist.
PKIA5262E
41 (R/B) – 1 (R/B) : Continuity should exist.
PKIA5263E
Switch name CONSULT screen
Driver side door switch DOOR SW - DR
Passenger side door switch DOOR SW - AS
Rear RH side door switch DOOR SW - RR
Rear LH side door switch DOOR SW - RL
SKIA5930E
1 (R) – Ground : Battery voltage should exist.
PKIA5264E

INTERIOR ROOM LAMP
LT-183
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Revision: 2004 November 2004 FX35/FX45
3. CHECK STEP LAMP CIRCUIT
1. Disconnect BCM connector and front door driver side step lamp
connector.
2. Check continuity between BCM harness connector M4 terminal
47 (Y/R) and front door driver side step lamp harness connector
D9 terminal 2 (SB).
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-15, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
4. CHECK STEP LAMP CIRCUIT
1. Disconnect BCM connector and step lamp connector.
2. Check continuity between BCM harness connector M4 terminal
41 (R/B) and front door driver side step lamp harness connector
D9 terminal 1 (R).
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-15, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
All Interior Room Lamps Do Not OperateAKS007FJ
1. CHECK POWER SUPPLY CIRCUIT
1. All interior room lamps switch are OFF.
2. Turn ignition switch ON.
3. Check voltage between BCM harness connector M4 terminal 41
(R/B) and ground.
OK or NG
OK >> Repair harness or connector. In a case of making a
short circuit, be sure to disconnect battery negative
cable after repairing harness, and then reconnect.
NG >> Replace BCM. Refer to BCS-15, "
Removal and Installa-
tion of BCM" .
Bulb ReplacementAKS007FK
ROOM LAMP
1. Remove room lamp. Refer to LT- 1 8 4 , "Removal and Installation"
.
2. Insert a suitable tool and remove lens.
3. Remove the bulb.
4. Install in the reverse order of removal.47 (Y/R) – 2 (SB) : Continuity should exist.
PKIA5265E
41 (R/B) – 1 (R) : Continuity should exist.
PKIA5266E
41 (R/B) – Ground : Battery voltage should exist.
PKIA5267E
Room lamp :12V - 8W
PKIA2848E

ILLUMINATION
LT-185
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Revision: 2004 November 2004 FX35/FX45
ILLUMINATIONPFP:27545
System DescriptionAKS007EI
Control of the illumination lamps operation is dependent upon the position of the lighting switch (combination
switch). When the lighting switch is placed in the 1ST or 2ND position (or if the auto light system is activated)
the BCM (body control module) receives input signal requesting the illumination lamps to illuminate. This input
signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN
communication lines. The CPU (central processing unit) of IPDM E/R (intelligent power distribution module
engine room) controls the tail lamp relay coil. This relay, when energized, directs power to the illumination
lamps, which then illuminate.
Power is supplied at all times

to tail lamp relay [located in IPDM E/R (intelligent power distribution module engine room)]

through 10A fuse [No. 71, located in IPDM E/R (intelligent power distribution module engine room)].
Power is also supplied at all times

to BCM (body control module) terminal 55

through 50A fusible link (letter M, located in fuse and fusible link block)

to BCM (body control module) terminal 42

through 15A fuse [No. 22, located in fuse block (J/B)]

to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine room)]

through 15A fuse [No. 78, located in IPDM E/R (intelligent power distribution module engine room)]

to unified meter and A/C amp. terminal 21 and

to combination meter terminal 8

through 10A fuse [No. 19, located in fuse block (J/B)].
With the ignition switch in the ON or START position, power is supplied

to BCM (body control module) terminal 38

through 15A fuse [No. 1, located in fuse block (J/B)]

to unified meter and A/C amp. terminal 22

through 10A fuse [No. 12, located in fuse block (J/B)]

to ignition relay in the IPDM E/R (intelligent power distribution module engine room)

from ignition switch

to combination meter terminal 7

through 10A fuse [No. 14, located in fuse block (J/B)].
With the ignition switch in the ACC or ON position, power is supplied

to BCM (body control module) terminal 11

through 10A fuse [No. 6, located in fuse block (J/B)].
Ground is supplied

to BCM (body control module) terminals 49 and 52

to unified meter and A/C amp. terminals 29 and 30, and

to combination meter terminals 5, 6, and 15

through grounds M35, M45, and M85

to IPDM E/R (intelligent power distribution module engine room) terminals 38 and 60

through grounds E21, E50, and E51.
ILLUMINATION OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R
across the CAN communication lines. The central processing unit of the IPDM E/R controls the tail lamp relay
coil, which, when energized, directs power

through IPDM E/R terminal 22

to glove box lamp terminal 1

to A/T device (illumination) terminal 11

to snow mode switch (illumination) terminal 4