fuse chart INFINITI FX35 2004 Service Manual

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
ACS-37
[ICC]
C
D
E
F
G
H
I
J
L
MA
B
ACS
Revision: 2004 November 2004 FX35/FX45

When more than one malfunctions are detected, a maximum of 3 code numbers can be stored;
the latest malfunction will be displayed first.
6. Check ACS-40, "
Diagnostic Trouble Code (DTC) Chart" , and repair or replace if necessary.
7. After repair, erase DTC stored in the ICC unit.
8. DTC 55 will be shown.
9. Turn ignition switch OFF to exit the diagnosis.
10. Perform ICC system running test (drive vehicle with ICC system ON), and make sure that ICC warning
lamp does not illuminate.
Self-Diagnostic Erasing Method
1. Stop the vehicle and turn the ignition switch OFF.
2. Turn ignition switch ON and start self-diagnosis.
3. During self-diagnosis mode, press CANCEL switch 5 times, and DISTANCE switch 5 times in this order.
CAUTION:

Press them within 10 seconds after pressing CANCEL switch at first.

When operation is not completed within 10 seconds, start again from above go to 2.
4. DTC 55 will be shown.
CAUTION:
DTC of an existing malfunction will not be erased.
5. Turn ignition switch OFF to exit the diagnosis.
6. Perform ICC system running test (drive vehicle with ICC system ON), and make sure that ICC system
warning lamp (yellow) does not illuminate.
SELF-DIAGNOSIS BY ICC SYSTEM DISPLAY WILL NOT RUN.
Possible Irregular Condition
SKIA7068E
Open or short lines Trouble phenomenon Malfunction causes
ICC unit power supply malfunction No voltage supply from ignition switch Fuse blown
Harness open
Harness shorted
Ground cable not connected Harness open
Harness shorted
ICC steering switch malfunction No signal transmitted Harness open
Harness shorted
Spiral cable open
Spiral cable shorted
Switch or ECM malfunction
CAN communication system malfunction Signal not transmitted Harness open
Harness shorted
CAN communication outside the stan-
dard.

POWER DOOR LOCK SYSTEM
BL-37
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for BCMAIS004LV
Terminals and Reference Value for Intelligent Key Unit (With Intelligent Key Sys-
tem)
AIS004LW
Work FlowAIS004LX
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to BL-23, "
System Description" .
3. Perform the preliminary check. Refer to BL-38, "
Preliminary Check" .
4. According to the trouble diagnosis chart by symptom, repair or replace the cause of the malfunction.
Refer to BL-41, "
Trouble Diagnosis Chart by Symptom" .
5. Does power door lock system operate normally?
YES: GO TO 6.
NO: GO TO 4.
6. INSPECTION END
TERMI-
NALWIRE
COLORITEM CONDITIONVOLTAGE (V)
Approx.
12 P/BFront door switch (Passenger
side)ON (door open) → OFF (door closed) 0 → Battery voltage
13 P/L Rear door switch RH ON (door open) → OFF (door closed) 0 → Battery voltage
22 OR Power window serial link Ignition switch ON
37 B/W Key switchON (Key inserted) → OFF (Key removed
from IGN key cylinder)Battery voltage → 0
39 L CAN H — —
40 R CAN L — —
42 L/R Battery power supply (fuse) — Battery voltage
44 YDriver door lock actuator
(unlock)Door lock / unlock switch
(Free → Unlock)0 → Battery voltage
49, 52 B Ground — 0
50 PU Door lock actuator (lock)Door lock / unlock switch
(Free → Lock)0 → Battery voltage
51 W/BPassenger and rear doors lock
actuator (unlock)Door lock / unlock switch
(Free → Unlock)0 → Battery voltage
55 G Power source (Fusible link) — Battery voltage
58 L Back door switch ON (Door open) → OFF (Door closed) 0 → 9
62 W Front door switch (Driver side) ON (Door open) → OFF (Door closed) 0 → Battery voltage
63 P Rear door switch LH ON (Door open) → OFF (Door closed) 0 → Battery voltage
PIIA2344J
TERMI-
NALWIRE
COLORITEM CONDITIONVOLTAGE (V)
Approx.
2 L CAN H – –
3 R CAN L – –
27 L/W Push switch Push switch (OFF → ON) 0 → Battery voltage
40 BR/W AS unlock output signalDoor lock / unlock switch
(Free → Unlock)0 → Battery voltage

BL-170
BACK DOOR AUTO CLOSURE SYSTEM
Revision: 2004 November 2004 FX35/FX45
Work FlowAIS004OH
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to BL-165, "
System Description" .
3. Perform the preliminary check, Refer to BL-170, "
Preliminary Check"
4. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to BL-170,
"Trouble Diagnosis Chart by Symptom" .
5. Does back door auto closure system operate normally? If Yes, GO TO 6, If No, GO TO 4.
6. INSPECTION END
Preliminary CheckAIS004OI
Remove the fuse No.18 for the back door closure with the back door closure inactive.
Check that the back door can be open / close normally.
CAUTION:
It is judged it is abnormal, discontinues closure operation, and drive lever returns to a neutral position
if not becoming full-latch within about three seconds after half-latch.
When this operation is done continuously three times, both back door closure and back door opener
switch are not operated because the function of back door closure is stopped.
Thing to reset power supply by pulling out and opening fuse in that case.
Trouble Diagnosis Chart by SymptomAIS004OJ
Symptom Diagnostic procedure and repair order Refer to page
Back door closure does not operate.1.Back door closure motor power supply and ground
circuit check BL-171
2. Half-latch switch checkBL-171
3. Close switch checkBL-173
4. Open switch check.BL-174
5. Closure motor check.BL-180
6. Replace back door closure control unit.BL-180
Back door does not open (with Intelligent Key system).1. Intelligent Key system check.BL-1132. Back door opener switch check.BL-175
Back door does not open1. Back door opener switch check.BL-1772. Unlock sensor check.BL-179
3. Replace back door closure control unit.BL-180
Back door does not enter fully closed states through
back door closure operates.1.Back door fitting adjustment.BL-159
2. Replace back door lock assembly.BL-163

BL-218
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2004 November 2004 FX35/FX45
Trouble Diagnosis Symptom ChartAIS004PK
*: When IVIS (NATS) detects trouble, the security indicator lights up while electronic key is in the “ON” position.
Security Indicator InspectionAIS004PL
*: CONSULT-II self-diagnostic results display screen “no malfunction is detected”.SYMPTOMDisplayed “SELF-DIAG
RESULTS” on CON-
SULT-II screen.DIAGNOSTIC PROCE-
DURESYSTEM (Malfunctioning part or mode)

Security indicator
lighting up*

Engine hard to startECM INT CIRC-IMMU
[P1613]Refer to BL-219, "
Diag-
nostic Procedure 1" .ECM
CHAIN OF ECM-IMMU
[P1612]Refer to BL-220, "
Diag-
nostic Procedure 2" .Open circuit in battery voltage line to BCM (NATS
IMMU) circuit
Open circuit in ignition line to BCM (NATS IMMU)
circuit
Open circuit in ground line to BCM (NATS IMMU)
circuit
Open or short circuit between BCM (NATS IMMU)
and ECM communication line.
ECM
BCM (NATS IMMU)
DIFFERENCE OF KEY
[P1615]Refer to BL-221, "
Diag-
nostic Procedure 3" .Unregistered key
NATS IMMU
CHAIN OF IMMU-KEY
[P1614]Refer to BL-224, "
Diag-
nostic Procedure 6" .Open or short circuit between BCM (NATS IMMU)
and NATS antenna amp.
Malfunction of key ID chip
BCM (NATS IMMU)
Antenna amp.
ID DISCORD, IMM-ECM
[P1611]Refer to BL-222, "
Diag-
nostic Procedure 4"
System initialization has not yet been completed.
ECM
LOCK MODE
[P1610]Refer to BL-223, "
Diag-
nostic Procedure 5" .LOCK MODE

MIL staying ON

Security indicator
lighting up*DON'T ERASE
BEFORE CHECKING
ENG DIAGRefer to BL-217, "WORK FLOW" .Engine trouble data and IVIS (NATS) trouble data
have been detected in ECM
SYMPTOMSYSTEM
(Malfunctioning part or mode)DIAGNOSTIC PROCEDURE
Security indicator does not operate*Security indicator
Refer to BL-226, "
Diagnostic
Procedure 7" . Open circuit between Fuse and BCM (NATS
IMMU)
Continuation of initialization mode
BCM (NATS IMMU)

BL-220
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2004 November 2004 FX35/FX45
Diagnostic Procedure 2AIS004PN
Self-diagnostic results:
“CHAIN OF ECM-IMMU” is display on CONSULT-II screen
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-II, then perform the trouble diagno-
sis of malfunction system indicated “SELF-DIAG RESULTS” of “BCM”. Refer to BCS-14, "
CAN Com-
munication Inspection Using CONSULT-II (Self-Diagnosis)" .
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm that SELF-DIAGNOSTIC RESULTS “CHAIN OF ECM-
IMMU” is displayed on the screen?
Does CONSULT-II screen display as shown in figure?
YES >> GO TO 2.
NO >> GO TO BL-218, "
Trouble Diagnosis Symptom Chart" .
2. CHECK POWER SUPPLY CIRCUIT FOR BCM
1. Turn ignition switch OFF.
2. Disconnect BCM connector M4.
3. Check voltage between BCM connector M4 terminals 42 (L/R),
55 (G) and ground.
OK or NG
OK >> GO TO 3.
NG >> Check the following.

50A fusible link [Letter M , located in fuse block (J/B)]

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

Harness for open or short between fusible link or fuse
and BCM.
3. CHECK IGNITION SWITCH ON SIGNAL
1. Turn ignition switch ON.
2. Check voltage between BCM connector M3 terminal 38 (W/L)
and ground.
OK or NG
OK >> GO TO 4.
NG >> Check the following.

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

Harness for open or short between fuse and BCM.
PIIA1260E
42 (L/R) – Ground : Battery voltage
55 (G) – Ground : Battery voltage
PIIA6143E
38 (W/L) – Ground : Battery voltage
PIIA6144E

DI-16
COMBINATION METERS
Revision: 2004 November 2004 FX35/FX45
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between combination meter harness connector
terminals and ground.
3. Check continuity between unified meter and A/C amp. harness
connector terminals and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Symptom Chart 1 AKS005MT
Symptom Chart 2AKS005MU
Terminals
Continuity (+)
(–)
ConnectorTerminal
(Wire color)
M205 (B)
Ground Yes 6 (B)
15 (B)
SKIA4833E
Terminals
Continuity (+)
(–)
ConnectorTerminal
(Wire color)
M5629 (B)
Ground Yes
30 (B)
SKIA5202E
Trouble phenomenon Possible cause
Indication is irregular for the speedometer and odo/trip meter. Refer to DI-17, "
Vehicle Speed Signal Inspection" .
Tachometer indication is malfunction. Refer to DI-18, "
Engine Speed Signal Inspection" .
Water temperature gauge indication is malfunction. Refer to DI-19, "
Water Temperature Signal Inspection" .
Fuel gauge indication is malfunction. Refer to DI-20, "
Fuel Level Sensor Signal Inspection 1" .
Low-fuel warning lamp indication is irregular. Refer to DI-21, "
Fuel Level Sensor Signal Inspection 2" .
Indications are irregular for more than one gauge. Replace combination meter.
A/T position indicator is malfunction. Refer to DI-53, "
A/T Indicator Is Malfunction" .
Illumination control does not operate.Refer to DI-24, "
Odo/Trip Meter and Illumination Control Switch
Inspection" .
Displayed item [Code] Inspection contents Possible cause
CAN COMM CIRC [U1000] Inspect the CAN communication.Refer to DI-22, "
CAN Communication System Inspection" .
CAUTION:
Even when there is no malfunction on CAN communica-
tion system, malfunction may be misinterpreted when bat-
tery has low voltage (when maintaining 7-8V for about 2
seconds) or 10A fuse [No. 19, located in the fuse block (J/
B)] is disconnected.

GI-18
HOW TO USE THIS MANUAL
Revision: 2004 November 2004 FX35/FX45
14 Wire color

This shows a code for the color of the wire.
B = Black
W = White
R = Red
G = Green
L = Blue
Y = Yellow
LG = Light GreenBR = Brown
OR or O = Orange
P = Pink
PU or V (Violet) = Purple
GY or GR = Gray
SB = Sky Blue
CH = Dark Brown
DG = Dark Green
When the wire color is striped, the base color is given first, followed by the stripe color as shown
below:
Example: L/W = Blue with White Stripe
15 Option description

This shows a description of the option abbreviation used on the page.
16 Switch

This shows that continuity exists between terminals 1 and 2 when the switch is in the A posi-
tion. Continuity exists between terminals 1 and 3 when the switch is in the B position.
17 Assembly parts

Connector terminal in component shows that it is a harness incorporated assembly.
18 Cell code

This identifies each page of the wiring diagram by section, system and wiring diagram page
number.
19 Current flow arrow

Arrow indicates electric current flow, especially where the direction of standard flow (vertically
downward or horizontally from left to right) is difficult to follow.

A double arrow “ ” shows that current can flow in either direction depending on cir-
cuit operation.
20 System branch

This shows that the system branches to another system identified by cell code (section and
system).
21 Page crossing

This arrow shows that the circuit continues to another page identified by cell code.

The C will match with the C on another page within the system other than the next or preced-
ing pages.
22 Shielded line

The line enclosed by broken line circle shows shield wire.
23Component box in
wave line

This shows that another part of the component is also shown on another page (indicated by
wave line) within the system.
24 Component name

This shows the name of a component.
25 Connector number

This shows the connector number.

The letter shows which harness the connector is located in.

Example: M : main harness. For detail and to locate the connector, refer to PG section "Main
Harness", “Harness Layout”. A coordinate grid is included for complex harnesses to aid in
locating connectors.
26 Ground (GND)

The line spliced and grounded under wire color shows that ground line is spliced at the
grounded connector.
27 Ground (GND)

This shows the ground connection. For detailed ground distribution information, refer to
"Ground Distribution" in PG section.
28 Connector views

This area shows the connector faces of the components in the wiring diagram on the page.
29 Common component

Connectors enclosed in broken line show that these connectors belong to the same compo-
nent.
30 Connector color

This shows a code for the color of the connector. For code meaning, refer to wire color codes,
Number 14 of this chart.
31Fusible link and fuse
box

This shows the arrangement of fusible link(s) and fuse(s), used for connector views of
"POWER SUPPLY ROUTING" in PG section.
The open square shows current flow in, and the shaded square shows current flow out.
32 Reference area

This shows that more information on the Super Multiple Junction (SMJ) and Joint Connectors
(J/C) exists on the PG section. Refer to "Reference Area" for details. Num-
berItem Description

REAR WINDOW DEFOGGER
GW-97
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2004 November 2004 FX35/FX45
Trouble Diagnoses Symptom ChartAIS004R8

Make sure other systems using the signal of the following systems operate normally.
BCM Power Supply and Ground Circuit CheckAIS004R9
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-II, when perform the each trouble
diagnosis. Refer to BCS-14, "
CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)" .
1. CHECK FUSE

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

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

Check 50A fusible link (letter M located in the fuse and fusible link box).
NOTE:
Refer to GW-86, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse. Refer to
PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between BCM connector M3, M4 terminal 38, 42,
55 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check BCM power supply circuit for open or short.
Symptom Diagnoses / Service procedure Refer to page
Rear window defogger and door mirror defogger do not
operate. 1. BCM power supply and ground circuit check.GW-97
2. IPDM E/R auto active test checkPG-24
3. Rear window defogger switch circuit checkGW-98
4. Rear window defogger power supply circuit checkGW-100
5. Replace IPDM E/ RPG-30
Rear window defogger does not operate but both of door
mirror defogger operate.1. Rear window defogger circuit checkGW-102
2. Filament checkGW-107
Door mirror defogger does not operated but both of rear
window defogger operate. 1. Door mirror defogger power supply circuit checkGW-103
Driver side door mirror defogger does not operate. 1. Driver side door mirror defogger circuit checkGW-104
Passenger side door mirror defogger does not operate. 1. Passenger side door mirror defogger circuit checkGW-105
Rear window defogger switch does not light, and rear win-
dow defogger is not displayed on the display.
But rear window defogger operates. 1. Rear window defogger signal checkGW-106
38 (W/L) – Ground : Battery voltage
42 (L/R) – Ground : Battery voltage
55 (G) – Ground : Battery voltage
PIIA6160E

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 ........

HEADLAMP - XENON TYPE -
LT-35
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2004 November 2004 FX35/FX45
ADJUSTMENT USING AN ADJUSTMENT SCREEN (LIGHT/DARK BORDERLINE)
If the vehicle front body has been repaired and/or the headlamp assembly has been replaced, check aiming.
Use the aiming chart shown in the figure.

Basic illumination area for adjustment should be within the range shown on the aiming chart.
Adjust headlamp accordingly.
CAUTION:
Be sure aiming switch is set to “0” when performing aiming
adjustment.
Bulb ReplacementAKS007MW
HEADLAMP HIGH/LOW BEAM
1. Turn lighting switch OFF.
2. Disconnect negative battery cable or remove power fuse.
3. Remove air cleaner case (LH) or radiator reservoir tank (RH).
Refer to EM-17, "
Removal and Installation" , EM-172, "Removal
and Installation" , CO-14, "Removal and Installation" , CO-39,
"Removal and Installation" .
4. Turn plastic cap counterclockwise and unlock it.
5. Turn bulb socket counterclockwise and unlock it.
6. Unlock retaining spring and remove bulb from headlamp.
7. Install in the reverse order of removal.
SKIA5545E
SKIA5546E
SKIA5549E