electrical INFINITI FX35 2004 Service Manual

GW-6
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Revision: 2004 November 2004 FX35/FX45
DUPLICATE THE NOISE AND TEST DRIVE
If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or location of the noise. This information can be used to
duplicate the same conditions when you confirm the repair.
If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle “twist”.
5) At idle, apply engine load (electrical load, half-clutch on M/T models, drive position on A/T models).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.

Drive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.

If it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the
vehicle body.
CHECK RELATED SERVICE BULLETINS
After verifying the customer concern or symptom, check ASIST for Technical Service Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area. To help pinpoint the source of the noise, use a listening tool
(Chassis Ear: J-39570, Engine Ear and mechanics stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:

removing the components in the area that you suspect the noise is coming from.
Do not use too much force when removing clips and fasteners, otherwise clips and fastener can be broken
or lost during the repair, resulting in the creation of new noise.

tapping or pushing/pulling the component that you suspect is causing the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be eliminated only
temporarily.

feeling for a vibration with your hand by touching the component(s) that you suspect is (are) causing the
noise.

placing a piece of paper between components that you suspect are causing the noise.

looking for loose components and contact marks.
Refer to GW-7, "
Generic Squeak and Rattle Troubleshooting" .
REPAIR THE CAUSE

If the cause is a loose component, tighten the component securely.

If the cause is insufficient clearance between components:
–separate components by repositioning or loosening and retightening the component, if possible.
–insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or ure-
thane tape. A Nissan Squeak and Rattle Kit (J-43980) is available through your authorized Nissan Parts
Department.
CAUTION:
Do not use excessive force as many components are constructed of plastic and may be damaged.
Always check with the Parts Department for the latest parts information.
The following materials are contained in the Nissan Squeak and Rattle Kit (J-43980). Each item can be
ordered separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100×135 mm (3.94×5.31 in)/76884-71L01: 60×85 mm (2.36×3.35 in)/76884-
71L02: 15×25 mm (0.59×0.98 in)
INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50×50 mm (1.97×1.97 in)/73982-
50Y00: 10 mm (0.39 in) thick, 50×50 mm (1.97×1.97 in)

IDX-4
ALPHABETICAL INDEX
Electric throttle control actuator ........ EC-415, EC-417,
EC-1077
, EC-1079
Electric throttle control actuator (VK45DE) ..... EM-174
Electric throttle control actuator (VQ35DE) ....... EM-19
Electrical load signal circuit .............. EC-614, EC-1292
Electrical unit ..................................................... PG-77
Electrical units location ...................................... PG-70
Electronic ignition (EI) system ............. EC-34, EC-681
Engine control module (ECM) .......... EC-401, EC-1057
Engine control system diagram and chart ........ EC-29,
EC-676
Engine coolant temperature sensor (ECTS) ... EC-185,
EC-197
, EC-842, EC-855
Engine coolant(VK45DE) .................................. CO-36
Engine coolant(VQ35DE) ................................. CO-11
Engine oil filter replacement ............................. MA-25
Engine oil filter replacement(VQ35DE) ............. MA-18
Engine oil precautions .......................................... GI-8
Engine oil replacement(VQ35DE) ..................... MA-17
Engine oil(VK45DE) ........................................... LU-25
Engine oil(VQ35DE) ............................................ LU-7
Engine removal(VK45DE) ............................... EM-236
Engine removal(VQ35DE) .............................. EM-110
Engine room cover(VK45DE) ......................... EM-168
ETC1 - Wiring diagram .................... EC-418, EC-1080
ETC2 - Wiring diagram .................... EC-425, EC-1087
ETC3 - Wiring diagram .................... EC-429, EC-1091
EVAP canister .................................. EC-646, EC-1323
EVAP canister purge volume control solenoid valve ....
EC-335
, EC-990, EC-1160
EVAP canister vent control valve ...... EC-342, EC-502,
EC-997
, EC-1168
EVAP control system (small leak) diagnosis .. EC-326,
EC-366
, EC-981, EC-1022
EVAP control system pressure sensor ........... EC-349,
EC-352
, EC-358, EC-1004, EC-1007, EC-1014
EVAP control system purge flow monitoring diagnosis
EC-321
, EC-976
EVAP vapor lines inspection ................. MA-20, MA-27
Evaporative emission (EVAP) system ............ EC-643,
EC-1320
Evaporator ..................................................... ATC-155
Exhaust manifold(VK45DE) ............................ EM-178
Exhaust manifold(VQ35DE) .............................. EM-26
Exhaust system ................................................... EX-3
Exhaust system inspection ..................... EX-3, MA-28
Expansion valve ............................................. ATC-156
F
F/FOG - Wiring diagram ..................................... LT-79
F/PUMP - Wiring diagram ................ EC-604, EC-1281
Final drive removal and installation .. FFD-10, RFD-11
Floor trim ............................................................. EI-40
Flow charts ......................................................... GI-27
Fluid temperature sensor (A/T) ........................ AT-139
Fluorescent leak detector .............................. ATC-157
Fog lamp, front .................................................... LT-77
Front axle ............................................. FAX-4, FAX-10
Front brake solenoid valve ................. AT-156, AT-158
Front bumper ...................................................... EI-14
Front door ............................. BL-148, BL-152, GW-76
Front fog lamp .................................................... LT-77
Front passenger air bag .................................. SRS-40
Front seat belt ...................................................... SB-4
Front seat belt pre-tensioner ..... SB-2, SRS-3, SRS-47
Front side air bag ............................................ SRS-41
Front suspension .............................................. FSU-6
Front washer ...................................................... WW-4
Front wiper ......................................................... WW-4
FTTS - Wiring diagram ...... EC-275, EC-280, EC-933,
EC-938
Fuel cut control (at no load high engine speed) EC-35,
EC-683
Fuel filter replacement ......................................... FL-4
Fuel gauge ............................................................ DI-4
Fuel injector and fuel tube(VK45DE) .............. EM-188
Fuel injector and fuel tube(VQ35DE) ................ EM-45
Fuel level sensor EC-384, EC-386, EC-388, EC-1040,
EC-1042
, EC-1044
Fuel line inspection .................................. FL-3, MA-24
Fuel line inspection(VQ35DE) .......................... MA-17
Fuel precautions .......................................... GI-6, GI-7
Fuel pressure check ........................... EC-51, EC-700
Fuel pressure release ......................... EC-51, EC-700
Fuel pump ....................................... EC-603, EC-1280
Fuel pump and gauge .......................................... FL-4
Fuel system ......................................................... FL-3
Fuel tank ............................................................ FL-10
Fuel tank temperature sensor .......... EC-273, EC-279,
EC-931
, EC-937
Fuel tank vacuum relief valve ......... EC-646, EC-1323
FUELB1 - Wiring diagram .. EC-258, EC-267, EC-916,
EC-925
FUELB2 - Wiring diagram .. EC-259, EC-268, EC-917,
EC-926
Fuse .................................................................. PG-17
Fuse and fusible link box .................................. PG-84
Fusible link ........................................................ PG-17
G
Gauges ................................................................. DI-4
Glass ...................................... GW-11, GW-76, GW-80
Glove box lamp ................................... LT-154, LT-197
GPS antenna ..................................................... AV-89
Grille - See Exterior ............................................ EI-23
Ground distribution ........................................... PG-31
H
H/AIM - Wiring diagram ..................................... LT-73
H/LAMP - Wiring diagram .................................. LT-11
Harness connector ............................................ PG-74
Harness layout .................................................. PG-46
Hazard warning lamp ......................................... LT-89
Headlamp aiming control ................................... LT-73
Headlamp leveler - See Headlamp aiming control ........

IDX-5
A
C
D
E
F
G
H
I
J
K
L B
IDX
ALPHABETICAL INDEX
LT-73
Headlining - See Roof trim .................................. EI-42
Heated oxygen sensor 1 (bank 1) .... EC-205, EC-214,
EC-226
, EC-433, EC-439, EC-863, EC-872, EC-884,
EC-1103
, EC-1109
Heated oxygen sensor 1 (bank 2) .... EC-205, EC-214,
EC-226
, EC-433, EC-439, EC-863, EC-872, EC-884,
EC-1103
, EC-1109
Heated oxygen sensor 1 heater (bank 1) ....... EC-149,
EC-806
Heated oxygen sensor 1 heater (bank 2) ....... EC-149,
EC-806
Heated oxygen sensor 2 (bank 1) .... EC-236, EC-245,
EC-446
, EC-457, EC-894, EC-903, EC-1116, EC-1127
Heated oxygen sensor 2 (bank 2) .... EC-236, EC-245,
EC-446
, EC-457, EC-894, EC-903, EC-1116, EC-1127
Heated oxygen sensor 2 heater (bank 1) ....... EC-157,
EC-814
Heated oxygen sensor 2 heater (bank 2) ....... EC-157,
EC-814
Heated seat ....................................................... SE-98
Heater and cooling unit (Heater core) ........... ATC-126
HFC134a (R134a) system precaution ............... ATC-5
HFC134a (R134a) system service procedure ATC-137
HFC134a (R134a) system service tools .......... ATC-18
HFC134a system service equipment precaution ..........
ATC-13
High & low reverse clutch solenoid valve ....... AT-164,
AT-166
Hood ................................................................... BL-14
Horn ................................................................. WW-56
HORN - Wiring diagram ................................... WW-56
HSEAT - Wiring diagram ................................... SE-99
I
IATS - Wiring diagram ....................... EC-182
, EC-839
ICC - Wiring diagram ....................................... ACS-20
ICC/BS - Wiring diagram ................. EC-524, EC-1191
ICC/SW - Wiring diagram ................ EC-510, EC-1176
ICCBOF - Wiring diagram ................ EC-616, EC-1294
Idle air volume learning ....................... EC-49, EC-698
Idle mixture ratio .................................. EC-38, EC-687
Idle speed ............................................ EC-38, EC-687
Idle speed control (ISC) .... EC-392, EC-394, EC-1048,
EC-1050
Ignition coil ....................................... EC-585, EC-1262
Ignition coil(VK45DE) ...................................... EM-185
Ignition coil(VQ35DE) ........................................ EM-42
Ignition control system ..................... EC-585, EC-1262
Ignition key hole illumination ............................. LT-153
Ignition timing ...................................... EC-38, EC-687
IGNSYS - Wiring diagram ................ EC-586, EC-1263
Illumination control ............................................ LT-197
In vehicle sensor ........................... ATC-107, ATC-118
INF/D - Wring diagram ....................................... AV-63
INJECT - Wiring diagram ................. EC-598, EC-1275
Injector ............................................. EC-597, EC-1274
Input clutch solenoid valve ................. AT-152, AT-154
Instrument panel ................................................. IP-10
Intake air temperature sensor ........... EC-180, EC-200,
EC-837
, EC-858
Intake door control linkage adjustment ............ ATC-78
Intake door motor ............................ ATC-76, ATC-124
Intake manifold(VK45DE) ............................... EM-174
Intake manifold(VQ35DE) ................................. EM-24
Intake sensor ................................ ATC-113, ATC-120
Intake valve timing control (Bank 1) ... EC-145, EC-795
Intake valve timing control (Bank 2) ... EC-145, EC-795
Intake valve timing control position sensor (Bank 1) ....
EC-1095
Intake valve timing control position sensor (Bank 2) ....
EC-1095
Intake valve timing control solenoid valve (Bank 1) ......
EC-408
, EC-1070
Intake valve timing control solenoid valve (Bank 2) ......
EC-408
, EC-1070
Integrated homelink transmitter ....................... BL-228
Intelligent cruise control (ICC) system .............. ACS-6
Interior ................................................................. EI-37
Interior lamp ...................................................... LT-157
IPDM (Intelligent power distribution module engine
room) ................................................................. PG-18
IVCB1 - Wiring diagram .... EC-409, EC-798, EC-1071
IVCB2 - Wiring diagram .... EC-411, EC-800, EC-1073
IVCSB1 - Wiring diagram ............................... EC-1096
IVCSB2 - Wiring diagram ............................... EC-1098
IVIS (Infiniti vehicle immobilizer system) precautions ...
GI-3
J
Joint connector (J/C) .......................................... PG-76
K
Knock sensor (KS) ............................. EC-297
, EC-955
KS - Wiring diagram ........................... EC-298, EC-956
L
LAN system circuit ........................................... ATC-66
Laser beam aiming adjustment ....................... ACS-12
Latch (lower anchors and tether for children) system ...
SB-11
Line pressure solenoid valve ........................... AT-127
Line pressure test (A/T) ..................................... AT-52
Liquid gasket application ................................... LU-21
Liquid gasket application(VQ35DE) EM-6, LU-3, CO-3
Location of electrical units ................................. PG-70
Low coast brake solenoid valve ......... AT-168, AT-170
Low tire pressure warning system ...................... WT-7
Lubricant (R134a) A/C ........................ ATC-7, ATC-27
Lubrication circuit (engine)(VK45DE) ................ LU-23
Lubrication circuit (engine)(VQ35DE) .................. LU-5
Lubrication oil A/C .......................................... ATC-161

IP-2
PRECAUTIONS
Revision: 2004 November 2004 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AIS003CB
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
PrecautionsAIS003CC

Disconnect both battery cables in advance.

Disconnect air bag system line in advance.

Never tamper with or force air bag lid open, as this may adversely affect air bag performance.

Be careful not to scratch pad and other parts.

When removing or disassembling any part, be careful not to damage or deform it. Protect parts, which
may get in the way with cloth.

When removing parts with a screwdriver or other tool, protect parts by wrapping them with vinyl or tape.

Keep removed parts protected with cloth.

If a clip is deformed or damaged, replace it.

If an unreusable part is removed, replace it with a new one.

Tighten bolts and nuts firmly to the specified torque.

After re-assembly has been completed, make sure each part functions correctly.

Remove stains in the following way.
Water-soluble stains:
Dip a soft cloth in warm water, and then squeeze it tightly. After wiping the stain, wipe with a soft dry cloth.
Oil stain:
Dissolve a synthetic detergent in warm water (density of 2 to 3% or less), dip the cloth, then clean off the stain
with the cloth. Next, dip the cloth in fresh water and squeeze it tightly. Then clean off the detergent completely.
Then wipe the area with a soft dry cloth.

Do not use any organic solvent, such as thinner or benzine.

SQUEAK AND RATTLE TROUBLE DIAGNOSES
IP-5
C
D
E
F
G
H
J
K
L
MA
B
IP
Revision: 2004 November 2004 FX35/FX45
DUPLICATE THE NOISE AND TEST DRIVE
If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or location of the noise. This information can be used to
duplicate the same conditions when you confirm the repair.
If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle “twist”.
5) At idle, apply engine load (electrical load, half-clutch on M/T model, drive position on A/T model).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.

Drive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.

If it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the
vehicle body.
CHECK RELATED SERVICE BULLETINS
After verifying the customer concern or symptom, check ASIST for Technical Service Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area. To help pinpoint the source of the noise, use a listening tool
(Chassis Ear: J-39570, Engine Ear and mechanics stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:

removing the components in the area that you suspect the noise is coming from.
Do not use too much force when removing clips and fasteners, otherwise clips and fastener can be broken
or lost during the repair, resulting in the creation of new noise.

tapping or pushing/pulling the component that you suspect is causing the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be eliminated only
temporarily.

feeling for a vibration with your hand by touching the component(s) that you suspect is (are) causing the
noise.

placing a piece of paper between components that you suspect are causing the noise.

looking for loose components and contact marks.
Refer to IP-6, "
Generic Squeak and Rattle Troubleshooting" .
REPAIR THE CAUSE

If the cause is a loose component, tighten the component securely.

If the cause is insufficient clearance between components:
–separate components by repositioning or loosening and retightening the component, if possible.
–insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or ure-
thane tape. A NISSAN Squeak and Rattle Kit (J-43980) is available through your authorized NISSAN
Parts Department.
CAUTION:
Do not use excessive force as many components are constructed of plastic and may be damaged.
Always check with the Parts Department for the latest parts information.
The following materials are contained in the NISSAN Squeak and Rattle Kit (J-43980). Each item can be
ordered separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100 × 135 mm (3.94 × 5.31 in)/76884-71L01: 60 × 85 mm (2.36 × 3.35 in)/76884-71L02: 15
× 25 mm (0.59 × 0.98 in)
INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50 × 50 mm (1.97 × 1.97 in)/73982-50Y00: 10 mm (0.39 in) thick,
50 × 50 mm (1.97 × 1.97 in)

INSTRUMENT PANEL ASSEMBLY
IP-13
C
D
E
F
G
H
J
K
L
MA
B
IP
Revision: 2004 November 2004 FX35/FX45
3. After removing, disassemble, each parts.
CAUTION:
When removing console, be careful not to pull the harness.
(I) Instrument Lower Cover
1. Pull down front instrument lower cover, and disconnect clips.
2. Pull it horizontally, and remove from lower cover pawls.
(J) Instrument Passenger Lower Panel
Remove screws with power tool, and disconnect harness connector,
and remove instrument passenger lower panel.
(K) Instrument Driver Lower Panel
1. Remove bolt and screws with power tool.
2. Remove data link connector.
3. Pull to disengage clip and pawl by removing panel in horizontal direction.
4. Disconnect in-vehicle sensor and each electrical parts.
5. Remove the grommet, and remove hood lock cable.
(L) Steering Column Front Lower Cover
1. Remove screw with power tool.
2. Disengage the tab, then remove steering column front lower cover.
NOTE:

Move the steering column telescopic to the rear most position

Move the steering column tilt to the top position.
(M) Steering Column Lower Cover
1. Remove screws with power tool.
2. Disengage the tab, then remove steering column lower cover.
PIIA5007E
PIIA4995E
PIIA4998E

LAN-1
LAN SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION LAN
A
B
LAN
Revision: 2004 November 2004 FX35/FX45
LAN SYSTEM
CAN
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions When Using CONSULT-II ..................... 4
CHECK POINTS FOR USING CONSULT-II ......... 4
Precautions For Trouble Diagnosis .......................... 4
CAN SYSTEM ....................................................... 4
Precautions For Harness Repair .............................. 5
CAN SYSTEM ....................................................... 5
CAN COMMUNICATION ............................................ 6
System Description .................................................. 6
CAN Communication Unit ........................................ 6
TYPE 1/TYPE2 ..................................................... 6
TYPE 3 .................................................................. 9
TYPE 4/TYPE5 ................................................... 13
TYPE 6 ................................................................ 16
CAN SYSTEM (TYPE 1) ........................................... 21
System Description ................................................ 21
Component Parts and Harness Connector Location ... 21
Wiring Diagram - CAN - ......................................... 22
Work Flow .............................................................. 24
CHECK SHEET ................................................... 26
CHECK SHEET RESULTS (EXAMPLE) ............. 28
Circuit Check Between TCM and Data Link Con-
nector ..................................................................... 41
Circuit Check Between Data Link Connector and
Unified Meter and A/C Amp. .................................. 41
Circuit Check Between Unified Meter and A/C Amp.
and ABS Actuator and Electric Unit (Control Unit) ... 42
ECM Circuit Check ................................................. 42
TCM Circuit Check ................................................. 43
Display Unit Circuit Check ...................................... 43
Data Link Connector Circuit Check ........................ 44
BCM Circuit Check ................................................. 44
Steering Angle Sensor Circuit Check ..................... 45
Unified Meter and A/C Amp. Circuit Check ............ 45
ABS Actuator and Electric Unit (Control Unit) Circuit
Check ..................................................................... 46IPDM E/R Circuit Check ......................................... 46
CAN Communication Circuit Check ........................ 47
IPDM E/R Ignition Relay Circuit Check .................. 51
Component Inspection ............................................ 51
ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
TION .................................................................... 51
CAN SYSTEM (TYPE 2) ........................................... 52
System Description ................................................. 52
Component Parts and Harness Connector Location ... 52
Wiring Diagram - CAN - .......................................... 53
Work Flow ............................................................... 55
CHECK SHEET ................................................... 57
CHECK SHEET RESULTS (EXAMPLE) ............. 59
Circuit Check Between TCM and Data Link Con-
nector ...................................................................... 74
Circuit Check Between Data Link Connector and
Unified Meter and A/C Amp. ................................... 74
Circuit Check Between Unified Meter and A/C Amp.
and ABS Actuator and Electric Unit (Control Unit) ... 75
Circuit Check Between ABS Actuator and Electric
Unit (Control Unit) and Driver Seat Control Unit ..... 76
ECM Circuit Check ................................................. 76
TCM Circuit Check ................................................. 77
Display Unit Circuit Check ...................................... 77
Data Link Connector Circuit Check ........................ 78
BCM Circuit Check ................................................. 78
Steering Angle Sensor Circuit Check ..................... 79
Unified Meter and A/C Amp. Circuit Check ............ 79
ABS Actuator and Electric Unit (Control Unit) Circuit
Check ..................................................................... 80
Driver Seat Control Unit Circuit Check ................... 80
IPDM E/R Circuit Check ......................................... 81
CAN Communication Circuit Check ........................ 82
IPDM E/R Ignition Relay Circuit Check .................. 86
Component Inspection ............................................ 86
ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
TION .................................................................... 86
CAN SYSTEM (TYPE 3) ........................................... 87
System Description ................................................. 87
Component Parts and Harness Connector Location ... 87

LAN-4
[CAN]
PRECAUTIONS
Revision: 2004 November 2004 FX35/FX45
[CAN]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS007WY
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions When Using CONSULT-IIAKS0058H
When connecting CONSULT-II to data link connector, connect them through CONSULT-II CONVERTER.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
CHECK POINTS FOR USING CONSULT-II
1. Has CONSULT-II been used without connecting CONSULT-II CONVERTER on this vehicle?
–If YES, GO TO 2.
–If NO, GO TO 5.
2. Is there any indication other than indications relating to CAN communication system in the self-diagnosis
results?
–If YES, GO TO 3.
–If NO, GO TO 4.
3. Based on self-diagnosis results unrelated to CAN communication, carry out the inspection.
4. Malfunctions may be detected in self-diagnosis depending on control units carrying out CAN communica-
tion. Therefore, erase the self-diagnosis results.
5. Diagnose CAN communication system. Refer to LAN-6, "
CAN Communication Unit" .
Precautions For Trouble DiagnosisAKS0058I
CAN SYSTEM

Do not apply voltage of 7.0 V or higher to the measurement terminals.

Use the tester with its open terminal voltage being 7.0 V or less.

Be sure to turn ignition switch off and disconnect negative battery terminal before checking the circuit.

LT-1
LIGHTING SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION LT
A
B
LT
Revision: 2004 November 2004 FX35/FX45
LIGHTING SYSTEM
PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 5
General precautions for service operations ............. 6
Wiring Diagrams and Trouble Diagnosis .................. 6
HEADLAMP - XENON TYPE - ................................... 7
Component Parts and Harness Connector Location ..... 7
System Description .................................................. 7
OUTLINE ............................................................... 7
COMBINATION SWITCH READING FUNCTION ..... 9
EXTERIOR LAMP BATTERY SAVER CONTROL ..... 9
AUTO LIGHT OPERATION (IF EQUIPPED) ......... 9
VEHICLE SECURITY SYSTEM ............................ 9
XENON HEADLAMP ............................................. 9
CAN Communication System Description ................ 9
CAN Communication Unit ........................................ 9
Schematic .............................................................. 10
Wiring Diagram — H/LAMP — ................................ 11
Terminals and Reference Values for BCM ............. 15
Terminals and Reference Values for IPDM E/R ..... 16
How to Proceed With Trouble Diagnosis ................ 16
Preliminary Check .................................................. 17
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 17
CONSULT-II Functions (BCM) ............................... 18
CONSULT-II BASIC OPERATION ....................... 18
WORK SUPPORT ............................................... 19
DATA MONITOR ................................................. 19
ACTIVE TEST ..................................................... 20
CONSULT-II Functions (IPDM E/R) ....................... 21
CONSULT-II OPERATION .................................. 21
SELF-DIAGNOSTIC RESULTS .......................... 22
DATA MONITOR ................................................. 22
ACTIVE TEST ..................................................... 23
Headlamp Does Not Change To High Beam (Both
Sides) ..................................................................... 23
Headlamp Does Not Change To High Beam (One
Side) ....................................................................... 25
High Beam Indicator Lamp Does Not Illuminate .... 26Headlamp Low Beam Does Not Illuminate (Both
Sides) ..................................................................... 26
Headlamp Low Beam Does Not Illuminate (One
Side) ....................................................................... 29
Headlamp RH Low Beam and High Beam Do Not
Illuminate ................................................................ 30
Headlamp LH Low Beam and High Beam Do Not
Illuminate ................................................................ 30
Headlamps Do Not Turn OFF ................................. 31
CAUTION: .............................................................. 33
Xenon Headlamp Trouble Diagnosis ...................... 33
Aiming Adjustment .................................................. 34
PREPARATION BEFORE ADJUSTING .............. 34
LOW BEAM AND HIGH BEAM ........................... 34
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ............ 35
Bulb Replacement .................................................. 35
HEADLAMP HIGH/LOW BEAM .......................... 35
PARKING LAMP (CLEARANCE LAMP) .............. 36
FRONT TURN SIGNAL LAMP ............................ 36
FRONT SIDE MARKER LAMP ........................... 36
Removal and Installation ........................................ 36
REMOVAL ........................................................... 36
INSTALLATION ................................................... 36
Disassembly and Assembly .................................... 37
DISASSEMBLY ................................................... 37
ASSEMBLY ......................................................... 37
DAYTIME LIGHT SYSTEM ....................................... 38
Component Parts and Harness Connector Location ... 38
System Description ................................................. 38
OUTLINE ............................................................. 38
DAYTIME LIGHT OPERATION ........................... 39
COMBINATION SWITCH READING FUNCTION ... 39
AUTO LIGHT OPERATION ................................. 39
CAN Communication System Description .............. 39
CAN Communication Unit ....................................... 39
Schematic ............................................................... 40
Wiring Diagram — DTRL — ................................... 41
Terminals and Reference Values for BCM .............. 45
How to Proceed With Trouble Diagnosis ................ 46

PRECAUTIONS
LT-5
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2004 November 2004 FX35/FX45
PRECAUTIONS PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS007KP
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.