Ignition key INFINITI FX35 2006 Service Manual

LAN-34
[CAN]
CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R
Cooling fan speed request sig-
nal T
R
Engine coolant temperature
signal TR
Engine speed signal T R R R R
Engine status signal T R
Fuel consumption monitor sig-
nal TR
RT
Malfunctioning indicator lamp
signal TR
Wide open throttle position sig-
nal TR
A/T CHECK indicator lamp sig-
nal TR
A/T self-diagnosis signal R T
Current gear position signal T R
Manual mode indicator signal T R
Output shaft revolution signal R T
P range signal T R R
Shift position indicator signal T R
Turbine revolution signal R T
A/C switch/indicator signal TR
RT
System setting signal TR R
RT T
Alarm request signal T R
Back door open request signal T R
Door lock/unlock request signal T R
Ignition knob switch signal T R
Key warning signal T R
Power window open request
signal TR
Sleep wake up signal TR R
TR
Buzzer output signal TR
TR
A/C switch signal R T Signals ECM TCM
Dis-
play
control unit Intelli-
gent
Key unit BCM Steer-
ing
angle
sensor Unified
meter
and A/
C amp. ABS
actua-
tor and
electric
unit
(con- trol
unit) Driver
seat
control unit IPDM
E/R

CAN COMMUNICATION LAN-35
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Revision: 2006 December 2006 FX35/FX45
Blower fan motor switch signal R T
Day time running light request
signal TR
Door lock/unlock status signal R T
Door switch signal R R T R R R
Front fog light request signal T R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R R
Key fob door unlock signal T R
Key fob ID signal T R
Key switch signal T R
Low beam request signal T R
Position light request signal T R R
Theft warning horn request sig-
nal TR
Turn indicator signal T R
Oil pressure switch signal RT
TR
Steering angle sensor signal T R
Distance to empty signal R T
Fuel level low warning signal R T
Fuel level sensor signal R T
Manual mode shift down signal R T
Manual mode shift up signal R T
Manual mode signal R T
Not manual mode signal R T
Snow mode switch signal R T
Stop lamp switch signal R T
Turn LED burnout status signal R T
Vehicle speed signal RT
RRRRR T R
A/T shift schedule change
demand signal RT
ABS operation signal T
ABS warning lamp signal RT
Brake warning lamp signal R T
SLIP indicator lamp signal R T
TCS operation signal T
VDC OFF indicator lamp signal R T Signals ECM TCM
Dis-
play
control unit Intelli-
gent
Key unit BCM St e e r-
ing
angle
sensor Unified
meter
and A/
C amp. ABS
actua-
tor and
electric
unit
(con- trol
unit) Driver
seat
control unit IPDM
E/R

LAN-38
[CAN]
CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
ICC warning lamp signal T R
Buzzer output signal TR
TR
TR
Alarm request signal T R
Back door open request
signal TR
Door lock/unlock request
signal TR
Ignition knob switch sig-
nal TR
Key warning signal T R
Power window open
request signal TR
Sleep wake up signal TR R
TR
A/C switch signal R T
Blower fan motor switch
signal RT
Day time running light
request signal TR
Door lock/unlock status
signal RT
Door switch signal R R T R R R
Front fog light request
signal TR
Front wiper request sig-
nal RT R
High beam request sig-
nal TR R
Horn chirp signal T R
Ignition switch signal T R R
Key fob door unlock sig-
nal TR
Key fob ID signal T R
Key switch signal T R
Low beam request signal T R
Position light request sig-
nal TR R
Rear window defogger
switch signal TR
Theft warning horn
request signal TR
Signals ECM TCM
Dis-
play
con-
trol
unit ICC
unit Intelli-
gent Key unit BCM St e e r-
ing
angle
sen- sor LDW
cam- era
unit Uni-
fied
meter and
A/C
amp. ICC
sen-
sor ABS
actu- ator and
elec- tric
unit
(con- trol
unit) Driver
seat
con-
trol
unit IPDM
E/R

LAN-42
[CAN]
CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
System setting signal TR R
RT T
AWD warning lamp signal T R
Alarm request signal T R
Back door open request
signal TR
Door lock/unlock request
signal TR
Ignition knob switch signal T R
Key warning signal T R
Power window open
request signal TR
Sleep wake up signal TR R
TR
Buzzer output signal TR
TR
A/C switch signal R T
Blower fan motor switch
signal RT
Day time running light
request signal TR
Door lock/unlock status
signal RT
Door switch signal R R T R R R
Front fog light request sig-
nal TR
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R R
Key fob door unlock signal T R
Key fob ID signal T R
Key switch signal T R
Low beam request signal T R
Position light request sig-
nal RTR R
Theft warning horn
request signal TR
Turn indicator signal T R
Oil pressure switch signal RT
TR
Steering angle sensor sig-
nal TR
Signals ECM TCM
Dis-
play
control unit AW D
control unit Intelli-
gent
Key unit BCM Steer-
ing
angle
sensor Unified
meter
and A/
C amp. ABS
actua-
tor and elec-
tric unit (con-trol
unit) Driver
seat
control unit IPDM
E/R

LAN-46
[CAN]
CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
Door lock/unlock
request signal TR
Ignition knob switch
signal TR
Key warning signal T R
Power window open
request signal TR
Sleep wake up signal TR R
TR
A/C switch signal R T
Blower fan motor
switch signal RT
Day time running
light request signal TR
Door lock/unlock sta-
tus signal RT
Door switch signal R R T R R R
Front fog light
request signal TR
Front wiper request
signal RT R
High beam request
signal TR R
Horn chirp signal T R
Ignition switch signal T R R
Key fob door unlock
signal TR
Key fob ID signal T R
Key switch signal T R
Low beam request
signal TR
Position light request
signal RTR R
Rear window defog-
ger switch signal TR
Theft warning horn
request signal TR
Tire pressure signal T R
Turn indicator signal T R R
Oil pressure switch
signal RT
TR
Steering angle sen-
sor signal TR
Signals ECM TCM
Dis-
play
con-
trol
unit AW D
con- trol
unit ICC
unit Intel-
ligent Key unit BCM Steer-
ing
angle
sen- sor LDW
cam- era
unit Uni-
fied
meter and
A/C
amp. ICC
sen-
sor ABS
actu- ator and
elec- tric
unit
(con- trol
unit) Driver
seat
con-
trol
unit IPDM
E/R

TROUBLE DIAGNOSIS FOR SYSTEM LAN-195
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Revision: 2006 December 2006 FX35/FX45
Intelligent Key Unit Circuit InspectionNKS00392
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of Intelligent Key unit for damage, bend and loose connection (unit side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check resistance between Intelligent Key unit harness connec- tor terminals.
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Repair harness between Intelligent Key unit and data link connector.
Data Link Connector Circuit InspectionNKS00393
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check data link connector and terminals for damage, bend and loose connection (connector side and har- ness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
Check resistance between data link connector terminals.
OK or NG
OK >> Diagnose again. Refer to LAN-5, "TROUBLE DIAG-
NOSES WORK FLOW" .
NG >> Repair harness between data link connector and BCM.
Intelligent Key unit
connector Terminals Resistance
(Approx.)
M34 2 3 54 – 66 Ω
SKIA6887E
Data link connec-
tor Te r m i n a l s Resistance
(Approx.)
M5 6 14 54 – 66 Ω
PKIA9865E

LT-3
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Revision: 2006 December 2006 FX35/FX45 HAZARD SWITCH .................................................
..112
Removal and Installation ..................................... .. 112
REMOVAL ........................................................ .. 112
INSTALLATION ................................................ .. 112
COMBINATION SWITCH ....................................... ..113
Wiring Diagram — COMBSW — ......................... .. 113
Combination Switch Reading Function ............... .. 114
Terminals and Reference Values for BCM .......... .. 114
CONSULT-II Functions (BCM) ............................ .. 119
CONSULT-II BASIC OPERATION .................... .. 119
DATA MONITOR .............................................. .. 119
Combination Switch Inspection ........................... . 120
Removal and Installation ..................................... . 122
STOP LAMP .......................................................... . 123
Component Parts and Harness Connector Location . 123
System Description ............................................. . 123
Schematic ........................................................... . 124
Wiring Diagram — STOP/L — ............................. . 125
Terminals and Reference Value for Rear Combina-
tion Lamp Control Unit ........................................ . 128
Stop Lamp Does Not Operate ............................. . 128
High-Mounted Stop Lamp ................................... . 130
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ................................................ . 130
Stop Lamp ........................................................... . 130
BULB REPLACEMENT .................................... . 130
REMOVAL AND INSTALLATION ..................... . 130
Rear Combination Lamp Control Unit ................. . 130
REMOVAL AND INSTALLATION ..................... . 130
BACK-UP LAMP ................................................... . 131
Wiring Diagram — BACK/L — ............................ . 131
Bulb Replacement ............................................... . 132
Removal and Installation ..................................... . 132
PARKING, LICENSE PLATE AND TAIL LAMPS .. . 133
Component Parts and Harness Connector Location . 133
System Description ............................................. . 133
OUT LINE ......................................................... . 133
OPERATION BY LIGHTING SWITCH ............. . 134
COMBINATION SWITCH READING FUNCTION . 135
EXTERIOR LAMP BATTERY SAVER CONTROL . 135
CAN Communication System Description ........... . 135
CAN Communication Unit ................................... . 135
Schematic ........................................................... . 136
Wiring Diagram — TAIL/L — ............................... . 137
Terminals and Reference Values for BCM .......... . 142
Terminals and Reference Values for IPDM E/R .. . 142
Terminals and Reference Value for Rear Combina-
tion Lamp Control Unit ........................................ . 144
How to Proceed With Trouble Diagnosis ............. . 144
Preliminary Check ............................................... . 144
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ................................................................. . 144
CONSULT-II Functions (BCM) ............................ . 145
CONSULT-II Functions (IPDM E/R) .................... . 145
Parking, License Plate and Side Marker Lamps Do
Not Illuminate ...................................................... . 145
Tail Lamp Does Not Operate ............................... . 151
Parking, License Plate, Side Maker and Tail Lamps
Do Not Turn OFF (After Approx. 10 Minutes) ...... . 152 License Plate Lamp .............................................
.152
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ................................................ .152
Front Parking Lamp ............................................. .153
BULB REPLACEMENT .................................... .153
REMOVAL AND INSTALLATION ..................... .153
Tail Lamp ............................................................. .153
BULB REPLACEMENT .................................... .153
REMOVAL AND INSTALLATION ..................... .153
Front Side Marker Lamp ...................................... .153
BULB REPLACEMENT .................................... .153
REMOVAL AND INSTALLATION ..................... .153
Rear Side Marker Lamp ...................................... .153
BULB REPLACEMENT .................................... .153
REMOVAL AND INSTALLATION ..................... .153
Rear Combination Lamp Control Unit .................. .153
REMOVAL AND INSTALLATION ..................... .153
REAR COMBINATION LAMP ................................ .154
Bulb Replacement ............................................... .154
REAR FENDER SIDE (REAR SIDE MARKER
LAMP BULB) .................................................... .154
BACK DOOR SIDE (BACK-UP LAMP) ............ .154
Removal and Installation ..................................... .154
REMOVAL ........................................................ .154
INSTALLATION ................................................ .155
INTERIOR ROOM LAMP ....................................... .156
Component Parts and Harness Connector Location .156
System Description .............................................. .156
POWER SUPPLY AND GROUND ................... .157
SWITCH OPERATION ..................................... .158
ROOM LAMP TIMER OPERATION ................. .159
INTERIOR LAMP BATTERY SAVER CONTROL .160
Schematic ............................................................ .162
Wiring Diagram — ROOM/L — ........................... .164
Terminals 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 (BCM) ............................. .174
CONSULT-II BASIC OPERATION .................... .174
WORK SUPPORT (INT LAMP) ........................ .174
DATA MONITOR (INT LAMP) .......................... .174
ACTIVE TEST (INT LAMP) .............................. .175
WORK SUPPORT (BATTERY SAVER) ........... .176
DATA MONITOR (BATTERY SAVER) .............. .176
ACTIVE TEST (BATTERY SAVER) .................. .177
Interior Room Lamp Control Does Not Operate .. .177
Map Lamp Control Does Not Operate ................. .178
Personal Lamp Control Does Not Operate .......... .181
Ignition Key Hole Illumination Control Does Not
Operate ................................................................ .182
All Step Lamps Do Not Operate .......................... .184
All Interior Room Lamps Do Not Operate ............ .185
Bulb Replacement ............................................... .185
IGNITION KEY HOLE ILLUMINATION (WITH-
OUT INTELIGENT KEY) .................................. .185
IGNITION KEY HOLE ILLUMINATION (WITH
INTELIGENT KEY) ........................................... .185

LT-156
INTERIOR ROOM LAMP
Revision: 2006 December 2006 FX35/FX45
INTERIOR ROOM LAMPPFP:26410
Component Parts and Harness Connector LocationNKS002YM
System DescriptionNKS002YN
When the 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.
PKIC9697E

INTERIOR ROOM LAMP LT-157
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Revision: 2006 December 2006 FX35/FX45
When the 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 the 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 terminal 42,

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

to BCM terminal 55,

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

to combination meter terminal 8.
Power is supplied at all times (with Intelligent Key system)

through 10A fuse (No.38, located in fuse, fusible link and relay box)

to key switch and ignition knob switch terminal 1,

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

to BCM terminal 42 and

to key switch and ignition knob switch terminal 3,

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

to BCM terminal 55,

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

to combination meter terminal 8.
When key plate inserted to key switch, power is supplied (without Intelligent Key system)

through key switch terminal 1

to BCM terminal 37.
When inserted key plate to key switch, power is supplied (with Intelligent Key system)

through key switch and ignition knob switch terminal 4

to BCM terminal 37.
When moved ignition knob switch, power is supplied (with Intelligent Key system)

through ignition knob switch terminal 2

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

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

to BCM terminal 38.
Ground is supplied

to BCM terminals 49 and 52

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

through case ground of front door switch (driver side)

through front door switch (driver side) terminal 1

to BCM terminal 62.
When passenger side door is opened, ground is supplied

through case ground of front door switch (passenger side)

through front door switch (passenger side) terminal 1

to BCM terminal 12.

LT-158
INTERIOR ROOM LAMP
Revision: 2006 December 2006 FX35/FX45
When rear door LH is opened, ground is supplied

through case ground of rear door switch LH

through rear door switch LH terminal 1

to BCM terminal 63, and

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

through case ground of rear door switch RH

through rear door switch RH terminal 1

to BCM terminal 13, and

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

through grounds terminals M35, M45 and M85

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

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

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

through grounds M35, M45 and M85

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

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

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

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

to BCM terminal 22.
When a signal, or combination of signals is received by BCM, ground is supplied

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

to map lamp terminal 2,

to front door inside handle illumination terminal 2, and

to rear door inside handle illumination terminal 2

through BCM terminal 48.
With power and supplied, interior lamp illuminates.
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) and rear step lamp (LH and RH) terminals 2

through rear door switch (LH or RH) terminal 1

to personal lamp (LH or RH) terminals 1.
And power is supplied

from BCM terminal 41

to front step lamp (driver side and passenger side) and rear step lamp (LH and RH) terminals 1, and

to personal lamp (LH and RH) terminals 2
When map lamp switch is ON, ground is supplied