key battery INFINITI FX35 2004 Manual Online

LAN-122
[CAN]
CAN SYSTEM (TYPE 3)
Revision: 2004 November 2004 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check resistance between Intelligent Key unit harness connec-
tor M34 terminals 2 (L) and 3 (R).
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Repair harness between Intelligent Key unit and data
link connector.
Data Link Connector Circuit CheckAKS00C0Q
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery 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 M5 terminals 6 (L)
and 14 (R).
OK or NG
OK >> Diagnose again. Refer to LAN-92, "Work Flow" .
NG >> Repair harness between data link connector and BCM.
BCM Circuit CheckAKS00C0R
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check terminals and connector of BCM for damage, bend and loose connection (control module side and
harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.2 (L) - 3 (R) : Approx. 54 - 66Ω
SKIA6887E
6 (L) - 14 (R) : Approx. 54 - 66Ω
SKIA6868E

CAN SYSTEM (TYPE 3)
LAN-127
[CAN]
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Revision: 2004 November 2004 FX35/FX45
CAN Communication Circuit CheckAKS00C0Y
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check following terminals and connectors for damage, bend and loose connection (control module side,
control unit side, unit side, sensor side, meter side and harness side).
–ECM
–A/T assembly
–Display control unit
–Low tire pressure warning control unit
–ICC unit
–Intelligent Key unit
–BCM
–Steering angle sensor
–Unified meter and A/C amp.
–ICC sensor
–ABS actuator and electric unit (control unit)
–Driver seat control unit
–IPDM E/R
–Between ECM and IPDM E/R
–Between ECM and A/T assembly
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.

CAN SYSTEM (TYPE 6)
LAN-243
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Revision: 2004 November 2004 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ICC unit connector.
2. Check resistance between ICC unit harness connector M88 ter-
minals 14 (L) and 5 (R).
OK or NG
OK >> Replace ICC unit.
NG >> Repair harness between ICC unit and harness connec-
tor M82.
Intelligent Key Unit Circuit CheckAKS00C2O
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery 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 M34 terminals 2 (L) and 3 (R).
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Repair harness between Intelligent Key unit and data
link connector.
Data Link Connector Circuit CheckAKS00C2P
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery 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.14 (L) - 5 (R) : Approx. 54 - 66Ω
SKIA6886E
2 (L) - 3 (R) : Approx. 54 - 66Ω
SKIA6887E

LAN-248
[CAN]
CAN SYSTEM (TYPE 6)
Revision: 2004 November 2004 FX35/FX45
CAN Communication Circuit CheckAKS00C2X
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check following terminals and connectors for damage, bend and loose connection (control module side,
control unit side, unit side, sensor side, meter side and harness side).
–ECM
–A/T assembly
–Display control unit
–AWD control unit
–Low tire pressure warning control unit
–ICC unit
–Intelligent Key unit
–BCM
–Steering angle sensor
–Unified meter and A/C amp.
–ICC sensor
–ABS actuator and electric unit (control unit)
–Driver seat control unit
–IPDM E/R
–Between ECM and IPDM E/R
–Between ECM and A/T assembly
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.

LT-3
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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

LT-160
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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Revision: 2004 November 2004 FX35/FX45

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.

LT-172
INTERIOR ROOM LAMP
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Values for BCMAKS007FB
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
1PUIgnition keyhole illumina-
tion signalOFFDoor is locked. (SW OFF) Battery voltage
Door is unlocked. (SW ON) Approx. 0V
12 P/B Front door switch AS signal OFFFront door switch
ASON (open) Approx. 0V
OFF (closed) Battery voltage
13 P/L Rear door switch RH signal OFFRear door switch
RHON (open) Approx. 0V
OFF (closed) Battery voltage
22 O/RPower window switch serial
link——
37 B/WKey-in detection switch sig-
nalOFFVehicle key is removed. Approx. 0V
Vehicle key is inserted. Battery voltage
38 W/L Ignition power supply ON — Battery voltage
39 L CAN−H—— —
40 R CAN−L—— —
41 R/B Battery saver output signalOFF30 minutes after ignition switch is
turned to OFFApprox. 0V
ON — Battery voltage
42 L/R Battery power supply OFF — Battery voltage
47 Y/R Step lamp signal OFFAny door is open (ON) Approx. 0V
All doors are closed (OFF) Battery voltage
48 PU/WInterior room lamp, map
lamp and front door inside
handle illumination output
signalOFFInterior door
switch:
DOOR positionAny
door
switchON
(open)Approx. 0V
OFF
(closed)Battery voltage
49
52B Ground ON — Approx. 0V
55 G Battery power supply OFF — Battery voltage
58 LBack door switch signal
(Auto close motor)OFF Back door switchON (open) Approx. 0V
OFF (closed) Battery voltage
62 W Front door switch DR signal OFFFront door switch
DRON (open) Approx. 0V
OFF (closed) Battery voltage
63 P Rear door switch LH signal OFFRear door switch
LHON (open) Approx. 0V
OFF (closed) Battery voltage
PIIA2344J

INTERIOR ROOM LAMP
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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