2004 INFINITI FX35 bat fl

LT-180
INTERIOR ROOM LAMP
Revision: 2004 November 2004 FX35/FX45
Personal Lamp Control Does Not OperateAKS007FG
1. CHECK REAR DOOR SWITCH
Select “BCM” on CONSULT-II. With “INT LAMP” data monitor to
make sure switch “DOOR SW-RR” and “DOOR SW-RL” turn ON-
OFF linked with rear door (RH and LH) operation.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning rear door switch.
2. CHECK PERSONAL LAMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect personal lamp connector.
3. Open the rear door.
4. When personal lamp switch is in “DOOR” position, check conti-
nuity between personal lamp harness connector R54 terminal 1
(P), R55 terminal 1 (L) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK PERSONAL LAMP INPUT
Check voltage between personal lamp harness connector R54 and
R55 terminal 2 (R) and ground.
OK or NG
OK >> Replace personal lamp. Refer to LT- 1 5 1 , "Removal and
Installation" .
NG >> GO TO 4.
4. CHECK PERSONAL LAMP CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M4 terminal
41 (R/B) and personal lamp harness connector R54 and R55
terminal 2 (R).
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-15, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
SKIA5930E
1 (P), 1 (L) – Ground : Continuity should exist.
PKIA5257E
2 (R) – Ground : Battery voltage should exist.
PKIA5258E
41 (R/B) – 2 (R) : Continuity should exist.
PKIA5259E

INTERIOR ROOM LAMP
LT-181
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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

LT-182
INTERIOR ROOM LAMP
Revision: 2004 November 2004 FX35/FX45
5. CHECK IGNITION KEY HOLE ILLUMINATION CIRCUIT
1. Disconnect BCM connector and key hole illumination connector.
2. Check continuity between BCM harness connector M3 terminal
1 (PU) and key hole illumination harness connector M24 termi-
nal 2 (PU).
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-15, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
6. CHECK IGNITION KEY HOLE ILLUMINATION CIRCUIT
1. Disconnect BCM connector and key hole illumination connector.
2. Check continuity between BCM harness connector M4 terminal
41 (R/B) and key hole illumination harness connector M24 termi-
nal 1 (R/B).
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-15, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
All Step Lamps Do Not OperateAKS007FI
1. CHECK EACH DOOR SWITCH
Select “BCM” on CONSULT-II. With “INT LAMP” data monitor to
make sure switches listed below turn ON-OFF linked with switch
operation.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
2. CHECK STEP LAMP INPUT
1. Turn ignition switch OFF.
2. Check voltage between front door driver side step lamp harness
connector D9 terminal 1 (R) and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.1 (PU) – 2 (PU) : Continuity should exist.
PKIA5262E
41 (R/B) – 1 (R/B) : Continuity should exist.
PKIA5263E
Switch name CONSULT screen
Driver side door switch DOOR SW - DR
Passenger side door switch DOOR SW - AS
Rear RH side door switch DOOR SW - RR
Rear LH side door switch DOOR SW - RL
SKIA5930E
1 (R) – Ground : Battery voltage should exist.
PKIA5264E

INTERIOR ROOM LAMP
LT-183
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Revision: 2004 November 2004 FX35/FX45
3. CHECK STEP LAMP CIRCUIT
1. Disconnect BCM connector and front door driver side step lamp
connector.
2. Check continuity between BCM harness connector M4 terminal
47 (Y/R) and front door driver side step lamp harness connector
D9 terminal 2 (SB).
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-15, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
4. CHECK STEP LAMP CIRCUIT
1. Disconnect BCM connector and step lamp connector.
2. Check continuity between BCM harness connector M4 terminal
41 (R/B) and front door driver side step lamp harness connector
D9 terminal 1 (R).
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-15, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
All Interior Room Lamps Do Not OperateAKS007FJ
1. CHECK POWER SUPPLY CIRCUIT
1. All interior room lamps switch are OFF.
2. Turn ignition switch ON.
3. Check voltage between BCM harness connector M4 terminal 41
(R/B) and ground.
OK or NG
OK >> Repair harness or connector. In a case of making a
short circuit, be sure to disconnect battery negative
cable after repairing harness, and then reconnect.
NG >> Replace BCM. Refer to BCS-15, "
Removal and Installa-
tion of BCM" .
Bulb ReplacementAKS007FK
ROOM LAMP
1. Remove room lamp. Refer to LT- 1 8 4 , "Removal and Installation"
.
2. Insert a suitable tool and remove lens.
3. Remove the bulb.
4. Install in the reverse order of removal.47 (Y/R) – 2 (SB) : Continuity should exist.
PKIA5265E
41 (R/B) – 1 (R) : Continuity should exist.
PKIA5266E
41 (R/B) – Ground : Battery voltage should exist.
PKIA5267E
Room lamp :12V - 8W
PKIA2848E

LT-186
ILLUMINATION
Revision: 2004 November 2004 FX35/FX45

to VDC off switch (illumination) terminal 3

to clock (illumination) terminal 3

to hazard switch (illumination) terminal 3

to heated seat switch (driver side) (illumination) terminal 5

to heated seat switch (passenger side) (illumination) terminal 5

to A/C and AV switch (illumination) terminal 3

to NAVI control unit (illumination) terminal 25

to DVD player (illumination) terminal 12

to front cigarette lighter socket terminal 2

to rear power window switch LH (illumination) terminal 6 and

to rear power window switch RH (illumination) terminal 6.
Illumination control

through combination meter terminal 19

to A/T device (illumination) terminal 12

to snow mode switch (illumination) terminal 2

to VDC off switch (illumination) terminal 4

to clock (illumination) terminal 4

to hazard switch (illumination) terminal 4

to heated seat switch (driver side) (illumination) terminal 6

to heated seat switch (passenger side) (illumination) terminal 6

to A/C and AV switch (illumination) terminal 4

to NAVI control unit (illumination) terminal 30

to DVD player (illumination) terminal 10.
Ground is supplied at all times

to glove box lamp terminal 2 and

to front cigarette lighter socket terminal 3

through grounds M35, M45 and M85

to rear power window switch LH (illumination) terminal 7 and

to rear power window switch RH (illumination) terminal 7

through grounds B15 and B45.
With power and ground supplied, illumination lamps illuminate.
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 1ST or 2ND position (or if auto light system is acti-
vated), and the ignition switch is turned from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the illumination lamps remain illuminated for 5 minutes, then the illumination lamps are
turned off.
When the lighting switch is turned from OFF to 1ST or 2ND position (or if auto light system is activated) after
illumination lamps are turned off by the battery saver control, and illumination lamps illuminate again.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionAKS007EJ
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitAKS0080Y
Refer to LAN-6, "CAN Communication Unit" .

MA-6
GENERAL MAINTENANCE
Revision: 2004 November 2004 FX35/FX45
UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically (e.g. each time you check the engine oil or refuel).Parking brakeCheck that the pedal has the proper travel and make sure that the vehicle is
held securely on a fairly steep hill when only the parking brake is applied.PB-2
Automatic transmis-
sion "Park" mecha-
nismCheck that the lock release button on the selector lever operates properly and
smoothly. On a fairly steep hill check that the vehicle is held securely with the
selector lever in the P (Park) position without applying any brakes.— ItemReference page
ItemReference page
Windshield washer
fluidCheck that there is adequate fluid in the tank. —
Engine coolant levelCheck the coolant level when the engine is cold.MA-15
, MA-21
Radiator and hosesCheck the front of the radiator and clean off any dirt, insects, leaves, etc., that
may have accumulated. Make sure the hoses have no cracks, deformation,
deterioration or loose connections.—
Brake fluid levelMake sure that the brake fluid level is between the “MAX” and “MIN” lines on
the reservoir.MA-34

BatteryCheck the fluid level in each cell. It should be between the “MAX” and “MIN”
lines. Vehicles operated in high temperatures or under severe conditions
require frequent checks of the battery fluid level.SC-5, "
CHECKING
ELECTROLYTE LEVEL"
Engine drive beltsMake sure that no belt is frayed, worn, cracked or oily.MA-14, MA-21
Engine oil levelCheck the level on the oil level gauge after parking the vehicle on a level spot
and turning off the engine.MA-17, MA-24
Power steering fluid
level and linesCheck the level on the dipstick with the engine off. Check the lines for improper
attachment, leaks, cracks, etc.MA-36
Exhaust systemMake sure there are no loose supports, cracks or holes. If the sound of the
exhaust seems unusual or there is a smell of exhaust fumes, immediately
locate the trouble and correct it.MA-28
UnderbodyThe underbody is frequently exposed to corrosive substances such as those
used on icy roads or to control dust. It is very important to remove these sub-
stances, otherwise rust will form on the floor pan, frame, fuel lines and around
the exhaust system. At the end of winter, the underbody should be thoroughly
flushed with plain water, being careful to clean those areas where mud and dirt
can easily accumulate.—
Fluid leaksCheck under the vehicle for fuel, oil, water or other fluid leaks after the vehicle
has been parked for a while. Water dripping from the air conditioner after use is
normal. If you should notice any leaks or gasoline fumes are evident, check for
the cause and correct it immediately.—

PG-1
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
K ELECTRICAL
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PG
Revision: 2004 November 2004 FX35/FX45
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
POWER SUPPLY ROUTING CIRCUIT ...................... 3
Schematic ................................................................ 3
Wiring Diagram - POWER - ..................................... 4
BATTERY POWER SUPPLY - IGNITION SW. IN
ANY POSITION ..................................................... 4
ACCESSORY POWER SUPPLY - IGNITION SW.
IN “ACC” OR “ON” .............................................. 10
IGNITION POWER SUPPLY - IGNITION SW. IN
“ON” AND/OR “START” ....................................... 12
Fuse ....................................................................... 17
Fusible Link ............................................................ 17
Circuit Breaker ....................................................... 17
IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM) ...................................... 18
System Description ................................................ 18
SYSTEMS CONTROLLED BY IPDM E/R ........... 18
CAN COMMUNICATION LINE CONTROL ......... 18
IPDM E/R STATUS CONTROL ........................... 19
CAN Communication System Description .............. 19
CAN Communication Unit ...................................... 19
Function of Detecting Ignition Relay Malfunction ... 19
CONSULT-II ........................................................... 20
CONSULT-II INSPECTION PROCEDURE ......... 20
SELF-DIAG RESULTS ........................................ 21
DATA MONITOR ................................................. 22
ACTIVE TEST ..................................................... 22
Auto Active Test ..................................................... 24
DESCRIPTION .................................................... 24
OPERATION PROCEDURE ............................... 24
INSPECTION IN AUTO ACTIVE TEST MODE ... 24
Schematic .............................................................. 26
IPDM E/R Terminal Arrangement ........................... 27
IPDM E/R Power/Ground Circuit Inspection .......... 28
Inspection With CONSULT-II (Self-Diagnosis) ....... 29
Removal and Installation of IPDM E/R ................... 30
REMOVAL ........................................................... 30
INSTALLATION ................................................... 30GROUND ................................................................... 31
Ground Distribution ................................................. 31
MAIN HARNESS ................................................. 31
ENGINE ROOM HARNESS ................................ 34
ENGINE HARNESS/VK ENGINE MODELS ........ 37
ENGINE HARNESS/VQ ENGINE MODELS ....... 38
ENGINE CONTROL HARNESS/VK ENGINE
MODELS ............................................................. 39
ENGINE CONTROL HARNESS/VQ ENGINE
MODELS ............................................................. 40
BODY HARNESS ................................................ 41
BODY NO.2 HARNESS ...................................... 44
ROOM LAMP HARNESS .................................... 45
HARNESS ................................................................. 46
Harness Layout ...................................................... 46
HOW TO READ HARNESS LAYOUT ................. 46
OUTLINE ............................................................. 47
MAIN HARNESS ................................................. 48
ENGINE ROOM HARNESS ................................ 51
ENGINE HARNESS/VK ENGINE MODELS ........ 54
ENGINE HARNESS/VQ ENGINE MODELS ....... 55
ENGINE CONTROL HARNESS/VK ENGINE
MODELS ............................................................. 56
ENGINE CONTROL HARNESS/VQ ENGINE
MODELS ............................................................. 58
BODY HARNESS ................................................ 60
BODY NO.2 HARNESS ...................................... 62
ROOM LAMP HARNESS .................................... 63
FRONT DOOR HARNESS .................................. 64
REAR DOOR HARNESS .................................... 65
BACK DOOR HARNESS .................................... 66
Wiring Diagram Codes (Cell Codes) ...................... 67
ELECTRICAL UNITS LOCATION ............................ 70
Electrical Units Location ......................................... 70
ENGINE COMPARTMENT .................................. 70
PASSENGER COMPARTMENT ......................... 71
LUGGAGE COMPARTMENT .............................. 73
HARNESS CONNECTOR ......................................... 74
Description .............................................................. 74
HERNESS CONNECTOR (TAB-LOCKING

PG-4
POWER SUPPLY ROUTING CIRCUIT
Revision: 2004 November 2004 FX35/FX45
Wiring Diagram - POWER -AKS007VV
BATTERY POWER SUPPLY - IGNITION SW. IN ANY POSITION
TKWM0708E