key INFINITI FX35 2004 Service Manual

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Revision: 2004 November 2004 FX35/FX45HAZARD SWITCH .................................................. 109
Removal and Installation ...................................... 109
REMOVAL ......................................................... 109
INSTALLATION ................................................. 109
COMBINATION SWITCH .........................................110
Wiring Diagram — COMBSW — ........................... 110
Combination Switch Reading Function ................ . 111
CONSULT-II Function .......................................... . 111
CONSULT-II BASIC OPERATION ..................... . 111
DATA MONITOR ................................................ 112
Combination Switch Inspection ............................. 113
Removal and Installation ....................................... 115
STOP LAMP ............................................................116
Component Parts and Harness Connector Location .. 116
System Description ............................................... 116
Schematic ............................................................. 117
Wiring Diagram — STOP/L — ............................... 118
Stop Lamp Does Not Operate .............................. 121
High-Mounted Stop Lamp .................................... 123
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ................................................. 123
Stop Lamp ............................................................ 123
BULB REPLACEMENT ..................................... 123
REMOVAL AND INSTALLATION ...................... 123
Rear Combination Lamp Control Unit .................. 123
REMOVAL AND INSTALLATION ...................... 123
STEP LAMP ............................................................ 124
Front Door Step Lamp .......................................... 124
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ................................................. 124
Rear Door Step Lamp .......................................... 124
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ................................................. 124
BACK-UP LAMP .................................................... 125
Wiring Diagram — BACK/L — ............................. 125
Bulb Replacement ................................................ 126
Removal and Installation ...................................... 126
PARKING, LICENSE PLATE AND TAIL LAMPS ... 127
Component Parts and Harness Connector Location . 127
System Description .............................................. 127
OPERATION BY LIGHTING SWITCH .............. 128
COMBINATION SWITCH READING FUNCTION . 129
EXTERIOR LAMP BATTERY SAVER CONTROL . 129
CAN Communication System Description ............ 129
CAN Communication Unit .................................... 129
Schematic ............................................................ 130
Wiring Diagram — TAIL/L — ................................ 131
Terminals and Reference Values for BCM ........... 136
Terminals and Reference Values for IPDM E/R ... 137
How to Proceed With Trouble Diagnosis .............. 137
Preliminary Check ................................................ 137
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................. 137
CONSULT-II Functions ......................................... 138
Parking, License Plate and Tail Lamps Do Not Illu-
minate .................................................................. 139
Tail Lamp Does Not Operate ................................ 144
Parking, License Plate and Tail Lamps Do Not Turn
OFF (After Approx. 10 Minutes) ........................... 145License Plate Lamp ..............................................145
BULB REPLACEMENT, REMOVAL AND
INSTALLATION .................................................145
Front Parking (Clearance) Lamp ..........................146
BULB REPLACEMENT .....................................146
REMOVAL AND INSTALLATION ......................146
Tail Lamp ..............................................................146
BULB REPLACEMENT .....................................146
REMOVAL AND INSTALLATION ......................146
Front Side Marker Lamp .......................................146
BULB REPLACEMENT .....................................146
REMOVAL AND INSTALLATION ......................146
Rear Side Marker Lamp .......................................146
BULB REPLACEMENT .....................................146
REMOVAL AND INSTALLATION ......................146
Rear Combination Lamp Control Unit ...................146
REMOVAL AND INSTALLATION ......................146
REAR COMBINATION LAMP .................................147
Bulb Replacement ................................................147
REAR FENDER SIDE (REAR SIDE MARKER
LAMP BULB) .....................................................147
BACK DOOR SIDE (BACK-UP LAMP) .............147
Removal and Installation ......................................147
REMOVAL .........................................................147
INSTALLATION .................................................148
VANITY MIRROR LAMP .........................................149
Bulb Replacement ................................................149
MAP LAMP .............................................................150
Bulb Replacement ................................................150
Removal and Installation ......................................150
REMOVAL .........................................................150
INSTALLATION .................................................150
PERSONAL LAMP .................................................151
Bulb Replacement ................................................151
Removal and Installation ......................................151
REMOVAL .........................................................151
INSTALLATION .................................................151
LUGGAGE ROOM LAMP .......................................152
Bulb Replacement ................................................152
Removal and Installation ......................................152
REMOVAL .........................................................152
INSTALLATION .................................................152
IGNITION KEY HOLE ILLUMINATION ...................153
Bulb Replacement, Removal and Installation .......153
GLOVE BOX LAMP ................................................154
Bulb Replacement, Removal and Installation .......154
ASHTRAY ILLUMINATION .....................................155
Bulb Replacement and Removal and Installation . 155
CIGARETTE LIGHTER ILLUMINATION .................156
Bulb Replacement and Removal and Installation . 156
INTERIOR ROOM LAMP ........................................157
Component Parts and Harness Connector Location .157
System Description ...............................................157
POWER SUPPLY AND GROUND ....................157
SWITCH OPERATION ......................................159
ROOM LAMP TIMER OPERATION ..................159
INTERIOR LAMP BATTERY SAVER CONTROL .160
Schematic .............................................................162
Wiring Diagram — ROOM/L — ............................164

LT-4Revision: 2004 November 2004 FX35/FX45Terminals and Reference Values for BCM ............172
How to Proceed With Trouble Diagnosis ..............173
Preliminary Check ................................................173
CHECK FOR POWER SUPPLY AND GROUND
CIRCUIT ............................................................173
CONSULT-II Functions .........................................174
CONSULT-II BASIC OPERATION .....................174
WORK SUPPORT .............................................175
DATA MONITOR ................................................175
ACTIVE TEST ...................................................176
Interior Room Lamp Control Does Not Operate ...176
Map Lamp Control Does Not Operate ..................178
Personal Lamp Control Does Not Operate ...........180
Ignition key Hole illumination Control Does Not
Operate .................................................................181
All Step Lamps Do Not Operate ............................182
All Interior Room Lamps Do Not Operate .............183
Bulb Replacement ................................................183
ROOM LAMP .....................................................183
MAP LAMP ........................................................184PERSONAL LAMP .............................................184
Removal and Installation .......................................184
ROOM LAMP .....................................................184
MAP LAMP ........................................................184
PERSONAL LAMP .............................................184
ILLUMINATION ........................................................185
System Description ...............................................185
ILLUMINATION OPERATION BY LIGHTING
SWITCH .............................................................185
EXTERIOR LAMP BATTERY SAVER CONTROL .186
CAN Communication System Description ............186
CAN Communication Unit .....................................186
Schematic .............................................................187
Wiring Diagram — ILL — ......................................189
Removal and Installation .......................................197
ILLUMINATION CONTROL SWITCH ................197
GLOVE BOX LAMP ...........................................197
FRONT DOOR INSIDE ILLUMINATION ............197
BULB SPECIFICATIONS ........................................198
Headlamp ..............................................................198
Exterior Lamp ........................................................198
Interior Lamp/Illumination ......................................198

TURN SIGNAL AND HAZARD WARNING LAMPS
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through rear combination lamp control unit terminal 7

to grounds E21, E50 and E51

through combination meter terminals 5, 6 and 15

to grounds M35, M45 and M85.
When the hazard switch is depressed, ground is supplied

through BCM terminal 29

to hazard switch terminal 2

through hazard switch terminal 1

to grounds M35, M45 and M85.
When the hazard switch is depressed, BCM output turn signal from BCM terminals 45 and 46, interpreting it as
turn signal is ON.
Connected from BCM terminal 45 and 46 to front combination lamp terminal 4.
Turn signal lamp turns on

through front combination lamp terminal 8

to grounds E21, E50 and E51.
Connected form BCM terminals 45 and 46 to rear combination lamp control unit terminals 4 and 5.
Rear turn signal (LED) turns on

through rear combination lamp control unit terminal 11

to rear combination lamp LH terminal 3

through rear combination lamp LH terminal 4

to rear combination lamp control unit terminal 10

through rear combination lamp control unit terminal 9

to rear combination lamp RH terminal 3

through rear combination lamp RH terminal 4

to rear combination lamp control unit terminal 8.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal
indicator lamp with combination meter.
When rear turn signal lamp (LED) does not turn on, rear combination lamp control unit sends signal to unified
meter and A/C amp. Unified meter and A/C amp. turn LED burnout status signal to BCM through CAN commu-
nication lines for speeding up turn signal blinking.
REMOTE CONTROL ENTRY SYSTEM OPERATION
Power is supplied at all times

through 50A fusible link [letter M, located in fuse and fusible link block]

to BCM terminal 55

through 10A fuse [No. 19, located in fuse block (J/B)]

to combination meter terminal 8

through 10A fuse [No. 20, located in fuse block (J/B)]

to rear combination lamp control unit terminal 1.
Ground is supplied

to BCM terminals 49 and 52

through grounds M35, M45 and M85

to rear combination lamp control unit terminal 7

through grounds E21, E50 and E51

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85.
When the remote control entry system is triggered by input from the keyfob, BCM output turn signal from BCM
terminals 45 and 46, interpreting it as turn signal is ON.
Connected from BCM terminals 45 and 46 to front combination lamp terminal 4,
turn signal lamp turns on

through front combination lamp terminal 8

to grounds E21, E50 and E51.

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TURN SIGNAL AND HAZARD WARNING LAMPS
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Connected form BCM terminals 45 and 46 to rear combination lamp control unit terminals 4 and 5,
rear turn signal (LED) turns on

through rear combination lamp control unit terminal 11

to rear combination lamp LH terminal 3

through rear combination lamp LH terminal 4

to rear combination lamp control unit terminal 10

through rear combination lamp control unit terminal 9

to rear combination lamp RH terminal 3

through rear combination lamp RH terminal 4

to rear combination lamp control unit terminal 8.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal
indicator lamp with combination meter.
With power and input supplied, the BCM controls the flashing of the hazard warning lamps when keyfob is
used to activate the remote control entry system.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
CAN Communication System DescriptionAKS007CX
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitAKS0080W
Refer to LAN-6, "CAN Communication Unit" .

IGNITION KEY HOLE ILLUMINATION
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IGNITION KEY HOLE ILLUMINATIONPFP:48476
Bulb Replacement, Removal and InstallationAKS007FR
1. Remove combination meter. Refer to DI-26, "Removal and
Installation" in “DI” section.
2. Remove screw and remove NATS antenna amp.
3. Pull out ring and turn bulb socket to left to release lock.
4. Install in the reverse order of removal.Key cylinder illumination : 12V - 1.4W
SKIA5575E

INTERIOR ROOM LAMP
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INTERIOR ROOM LAMPPFP:26410
Component Parts and Harness Connector LocationAKS007O8
System DescriptionAKS007F7
When room lamp and personal lamp switch is in DOOR position, room lamp and personal lamp ON/OFF is
controlled by timer according to signals from switches including key switch, front door switch driver side,
unlock signal from keyfob, door lock and unlock switch, key cylinder lock and unlock switch, ignition switch.
When room lamp and personal lamp turns ON, there is a gradual brightening over 1 second. When room lamp
and personal lamp turns OFF, there is a gradual dimming over 1 second.
The room lamp and personal lamp timer is controlled by the BCM (body control module).
Room lamp and personal lamp timer control settings can be changed with CONSULT-II.
Ignition keyhole illumination turns ON at time when driver door is opened (door switch ON) or removed keyfob
from key cylinder. Illumination turns OFF when driver door is closed (door switch OFF).
Step lamp turns ON at time when driver door or passenger door is opened (door switch ON). Lamp turns OFF
when driver, passenger doors are closed (all door switches OFF).
POWER SUPPLY AND GROUND
Power is supplied at all times (without intelligent key system)

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

to key switch terminal 2 and

to BCM (body control module) terminal 42

through 50A fusible link [letter M, located in fuse and fusible link block]

to BCM (body control module) terminal 55.
Power is supplied at all times (with intelligent key system)

through 10A fuse [No.38, located in fuse and fusible link block]

to key switch and ignition knob switch terminals 1

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

to BCM (body control module) terminal 42

to key switch and ignition knob switch terminal 3, and

to key switch terminal 2

through 50A fusible link [letter M, located in fuse and fusible link block]

to BCM (body control module) terminal 55.
When the key plate inserted to key switch, power is supplied (without intelligent key system)

through the key switch terminal 1

to BCM (body control module) terminal 37.
PKIA2923E

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INTERIOR ROOM LAMP
Revision: 2004 November 2004 FX35/FX45
When inserted the key plate to key switch, power is supplied (with intelligent key system)

through the key switch and ignition knob switch terminal 4

to BCM (body control module) terminal 37.
When moved the ignition knob switch, power is supplied (with intelligent key system)

through the ignition knob switch terminal 2

to intelligent key unit terminal 27.
With the ignition switch in the ON or START position, power is supplied

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

to BCM (body control module) terminal 38.
Ground is supplied

to BCM (body control module) terminals 49 and 52

through grounds terminals M35, M45 and M85.
When the driver side door is opened, ground is supplied

through case ground of door switch driver side

to BCM (body control module) terminal 62.
When the passenger side door is opened, ground is supplied

through case ground of door switch passenger side

to BCM (body control module) terminal 12.
When the rear door LH is opened, ground is supplied

through case ground of door switch rear door LH

to BCM (body control module) terminal 63, and

to personal lamp LH terminal 1.
When the rear door RH is opened, ground is supplied

through case ground of door switch rear door RH

to BCM (body control module) terminal 13, and

to personal lamp RH terminal 1.
When the driver side door is unlocked by the door lock and unlock switch, BCM (body control module)
receives a ground signal

through grounds terminals M35, M45 and M85

to power window main switch terminal 17 (door lock and unlock switch) or front power window (passenger
side) terminal 11 (door lock and unlock switch)

from power window main switch terminal 14 (door lock and unlock switch) or front power window (passen-
ger side) terminal 16 (door lock and unlock switch)

to BCM (body control module) terminal 22.
When the front driver side door is unlocked by the driver side door lock assembly (door key cylinder switch),
BCM (body control module) receives a ground signal

through grounds M35, M45 and M85

to front door lock assembly (driver side) (door key cylinder switch) terminal 5

from front door lock assembly (driver side) (door key cylinder switch) terminal 6

to power window main switch terminal 6 (door lock and unlock switch)

from power window main switch terminal 14 (door lock and unlock switch)

to BCM (body control module) terminal 22.
When a signal, or combination of signals is received by BCM (body control module), ground is supplied

through BCM (body control module) terminal 48

to interior room lamp terminal 1(without DVD player),

to map lamp terminal 2 and

to front door inside handle illumination (driver side and passenger side) terminal 2
With power and supplied, the interior lamp illuminates.

INTERIOR ROOM LAMP
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SWITCH OPERATION
When driver door switch is ON (door is opened), ground is supplied

through BCM terminal 1

to ignition keyhole illumination terminal 2.
And power is supplied

from BCM terminal 41

to ignition keyhole illumination terminal 1.
When any door switch is ON (door is opened), ground is supplied

through BCM terminal 47

to front step lamp driver side and passenger side, rear step lamp (LH and RH)

through rear door switch terminal 1

to personal lamp (LH and RH) terminal 1.
And power is supplied

from BCM terminal 41

to every step lamp terminal 1, and personal lamp (LH and RH) terminal 2.
When map lamp switch is ON, ground is supplied

through grounds M35, M45 and M85

to map lamp terminal 1.
And power is supplied

from BCM terminal 41

to map lamp terminal 3.
When vanity mirror lamp (driver side and passenger side) is ON, ground is supplied

through grounds M35, M45 and M85

to vanity mirror lamp (driver side and passenger side) terminal 2.
And power is supplied

from BCM terminal 41

to vanity mirror lamp (driver side and passenger side) terminal 1.
When luggage room lamp (back door side) is ON, ground is supplied

through grounds B15 and B45

to luggage room lamp (back door side) terminal 3.
And power is supplied

from BCM terminal 41

to luggage room lamp (body side and back door side) terminal 2.
ROOM LAMP TIMER OPERATION
Without Intelligent Key System
When interior room lamp and map lamp switch is in DOOR position, and when all conditions below are met,
BCM performs timer control (maximum 30 seconds) for interior room lamp and map lamp ON/OFF.
In addition, when spot turns ON or OFF there is gradual brightening or dimming over 1 second.
Power is supplied

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

through key switch terminal 2.
Key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM terminal 37.
Ground is supplied

from BCM terminal 22

to power window main switch (door lock and unlock switch) terminal 14.
At the time that driver door are opened, BCM detects that driver door is unlocked. It determines that interior
room lamp and map lamp timer operation conditions are met, and turns the interior room lamp and map lamp
ON for 30 seconds.
Key is in ignition key cylinder (key switch ON),
Power is supplied

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INTERIOR ROOM LAMP
Revision: 2004 November 2004 FX35/FX45

through key switch terminal 1

to BCM terminal 37.
When key is removed from key switch (key switch OFF), power supply to BCM terminal 37 is terminated. BCM
detects that key has been removed, determines that interior room lamp and map lamp timer conditions are
met, and turns the interior room lamp and map lamp ON for 30 seconds.
When driver door opens → closes, and the key is not inserted in the key switch (key switch OFF), BCM termi-
nal 62 changes between 0V (door open) → 12V (door closed). The BCM determines that conditions for inte-
rior room lamp and map lamp operation are met and turns the interior room lamp ON for 30 seconds.
Timer control is canceled under the following conditions.

Driver door is locked [when locked keyfob 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.
With Intelligent Key System
When interior room lamp and map lamp switch is in DOOR position, and when all conditions below are met,
BCM performs timer control (maximum 30 second) for interior room lamp and map lamp ON/OFF.
In addition, when spot turns ON or OFF there is gradual brightening or dimming over 1 second.
Power is supplied

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

through key switch and ignition knob switch terminal 3.
Key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM terminal 37.
And not turned ignition knob switch, power will not be supplied to Intelligent Key unit.
Ground is supplied

from BCM terminal 22

to power window main switch (door lock and unlock switch) terminal 14.
At the time that driver door are opened, BCM detects that driver door is unlocked. It determines that interior
room lamp and map lamp timer operation conditions are met, and turns the interior room lamp and map lamp
ON for 30 seconds.
Key is in ignition key cylinder (key switch ON), or turned ignition knob switch,
Power is supplied

through key switch and ignition knob switch terminal 4

to BCM terminal 37

through key switch and ignition knob switch terminal 2

to Intelligent Key unit terminal 27.
When key is removed from key switch (key switch OFF), power supply to BCM terminal 37 is terminated. And
turned ignition knob switch, power supply to intelligent key unit is terminated. BCM detects that key has been
removed, determines that interior room lamp and map lamp timer conditions are met, and turns the interior
room lamp and map lamp ON for 30 seconds.
When driver door opens → closes, and the key is not inserted in the key switch (or not turned ignition knob
switch), BCM terminal 62 changes between 0V (door open) → 12V (door closed). The determines that condi-
tions for interior room lamp and map lamp operation are met and turns the interior room lamp ON for 30 sec-
onds.
Timer control is canceled under the following conditions.

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

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

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

Luggage room lamp

Vanity mirror lamp

Map lamp

INTERIOR ROOM LAMP
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Interior room lamp

Personal lamp
After lamps turn OFF by the battery saver system, the 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.