2007 INFINITI FX35 battery

INTERIOR ROOM LAMP LT-179
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Revision: 2006 July 2007 FX35/FX45
4. CHECK PERSONAL LAMP CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and personal lamp harness connector.
OK or NG
OK >> Replace BCM if personal lamp does not work after set- ting the connector again. Refer to BCS-14, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.
Ignition Key Hole Illumination Control Does Not OperateNKS002YX
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 2 , "
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-14, "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 and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 6.
BCM Personal lamp Continuity
Connector Terminal Connector Terminal
M4 41 RH R55
2Yes
LH R54
SKIA5942E
PKIB3532E
Ignition key hole illumination should operate.
PKIA7642E
1 – Ground : Battery voltage.
PKIA5260E

INTERIOR ROOM LAMP LT-181
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All Step Lamps Do Not OperateNKS002YY
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 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
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 and front door driver side step lamp harness connector D9
terminal 2.
OK or NG
OK >> Replace BCM if step lamp does not work after setting the connector again. Refer to BCS-14, "
Removal and
Installation of BCM" .
NG >> Repair harness or connector.
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
PKIB3532E
1 – Ground : Battery voltage.
PKIA5264E
47 – 2 : Continuity should exist.
SKIA5950E

LT-182
INTERIOR ROOM LAMP
Revision: 2006 July 2007 FX35/FX45
4. 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 41 and front door driver side step lamp harness connector D9
terminal 1.
OK or NG
OK >> Replace BCM if step lamp does not work after setting the connector again. Refer to BCS-14, "
Removal and
Installation of BCM" .
NG >> Repair harness or connector.
All Interior Room Lamps Do Not OperateNKS002YZ
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 and ground.
OK or NG
OK >> Repair harness or connector. In a case of making a short circuit, be sure to disconnect cable from the nega-
tive terminal repairing harness, and then reconnect.
NG >> Replace BCM. Refer to BCS-14, "
Removal and Installa-
tion of BCM" .
Bulb ReplacementNKS002Z0
IGNITION KEY HOLE ILLUMINATION (WITHOUT INTELLIGENT KEY)
1. Remove combination meter. Refer to DI-25, "Removal and
Installation of Combination Meter" .
2. Remove screw and remove NATS antenna amp.
3. Pull out ring and turn bulb socket to left to release lock.
4. Installation is the reverse order of removal.
IGNITION KEY HOLE ILLUMINATION (WITH INTELLIGENT KEY)
1. Remove instrument lower panel (driver side). Refer to IP-10,
"INSTRUMENT PANEL ASSEMBLY" .
2. Turn the bulb socket counterclockwise and unlock it.
3. Installation is the reverse order of removal. 41 – 1 : Continuity should exist.
SKIA5951E
41 – Ground : Battery voltage.
SKIA5952E
Ignition key hole illumination : 12 V - 0.8 W
SKIA5575E
Ignition key hole illumination : 12 V - 0.8 W
PKIC9733E

LT-186
ILLUMINATION
Revision: 2006 July 2007 FX35/FX45
ILLUMINATIONPFP:27545
System DescriptionNKS002Z2
Control of illumination lamps operation is dependent upon position of lighting switch (combination switch).
When lighting switch is placed in the 1ST or 2ND position (or if auto light system is activated), BCM (body con-
trol module) receives input signal requesting illumination lamps to illuminate. This input signal is communi-
cated to IPDM E/R (intelligent power distribution module engine room) through the CAN communication. The
CPU (central processing unit) located in the IPDM E/R controls tail lamp relay coil. This relay, when energized,
directs power to illumination lamps, which then illuminate.
Power is supplied at all times

through 10A fuse (No. 71, located in IPDM E/R)

to tail lamp relay, located in IPDM E/R, and

to CPU located in IPDM E/R.
Power is also supplied at all times

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

to BCM terminal 55,

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

to BCM terminal 42,

through 15A fuse (No. 78, located in IPDM E/R)

to CPU located in IPDM E/R,

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

to unified meter and A/C amp. terminal 21 and

to combination meter terminal 8.
With ignition switch in ON or START position, power is supplied

to ignition relay, located in IPDM E/R, from battery direct,

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

to BCM terminal 38,

through 10A fuse [No. 12, located in fuse block (J/B)]

to unified meter and A/C amp. terminal 22 and

to combination meter terminal 7.
With ignition switch in ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to combination meter terminal 4 and

to BCM terminal 11.
Ground is supplied

to BCM terminals 49 and 52

to unified meter and A/C amp. terminals 29 and 30, and

to combination meter terminals 5, 6, and 15

through grounds M35, M45, and M85,

to IPDM E/R terminals 38 and 60

through grounds E21, E50, and E51.
ILLUMINATION OPERATION BY LIGHTING SWITCH
With lighting switch in the 1ST or 2ND position (or if auto light system is activated), BCM receives input signal
requesting illumination lamps to illuminate. This input signal is communicated to IPDM E/R through the CAN
communication. The CPU located in the IPDM E/R controls tail lamp relay coil, which, when energized, directs
power

through IPDM E/R terminal 22

to glove box lamp terminal 1

to A/T device (illumination) terminal 11

to snow mode switch (illumination) terminal 5

to VDC off switch (illumination) terminal 3

ILLUMINATION LT-187
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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 door mirror remote control switch (illumination) terminal 16

to LDW switch (illumination) terminal 5

to combination switch (spiral cable) terminal 26

to microphone terminal 2 (with telephone system)

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

to DVD player (illumination) terminal 12

to coin box illumination terminal 2 and

to rear power window switch LH and RH (illumination) terminals 6,

through combination switch (spiral cable) terminal 18

to audio steering switch (illumination)

to icc steering switch (illumination) (with icc) and

to ascd steering switch (illumination) (without icc)
Illumination control

through combination meter terminal 19

to A/T device (illumination) terminal 12

to snow mode switch (illumination) terminal 6

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 door mirror remote control switch terminal 15

to LDW switch (illumination) terminal 4,

to combination switch (spiral cable) terminal 27

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

to DVD player (illumination) terminal 10,

through combination switch (spiral cable) terminal 21

to audio steering switch (illumination)

to icc steering switch (illumination) (with icc) and

to ascd steering switch (illumination) (without icc)
Ground is supplied at all times

to glove box lamp terminal 2 and

to coin box illumination terminal 3

through grounds M35, M45 and M85,

to rear power window switch LH and RH (illumination) terminals 7

through grounds B15 and B45.
With power and ground supplied, illumination lamps illuminate.
EXTERIOR LAMP BATTERY SAVER CONTROL
When the lighting switch is in the 1ST or 2ND position (or if auto light system is activated), and ignition switch
is turned from ON or ACC to OFF, battery saver control function is activated.
Under this condition, illumination lamps remain illuminated for 5 minutes, then 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 battery saver control, and illumination lamps illuminate again.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.

MA-6
GENERAL MAINTENANCE
Revision: 2006 July 2007 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 brake
Check 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-3
Automatic transmis-
sion "Park" mecha-
nism Check 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. —
Item
Reference page
Item Reference page
Windshield washer
fluid Check that there is adequate fluid in the tank. —
Engine coolant level Check the coolant level when the engine is cold. MA-15
, MA-22
Radiator and hoses Check 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 level Make sure that the brake fluid level is between the “MAX” and “MIN” lines on
the reservoir. MA-35

Battery Check 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-6, "
CHECKING
ELECTROLYTE LEVEL"
Engine drive belts
Make sure that no belt is frayed, worn, cracked or oily. MA-14, MA-22
Engine oil level Check the level on the oil level gauge after parking the vehicle on a level spot
and turning off the engine. MA-18,
MA-25
Power steering fluid
level and lines Check the level on the dipstick with the engine off. Check the lines for improper
attachment, leaks, cracks, etc. MA-37
Exhaust system
Make 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-29
Underbody
The 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 leaks Check 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
CONTENTS
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Revision: 2006 July 2007 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 .................................................................... ... 16
Fusible Link ......................................................... ... 16
Circuit Breaker .................................................... ... 16
IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM) ................................... ... 17
System Description ............................................. ... 17
SYSTEMS CONTROLLED BY IPDM E/R ........ ... 17
CAN COMMUNICATION LINE CONTROL ...... ... 17
IPDM E/R STATUS CONTROL ........................ ... 18
CAN Communication System Description ........... ... 18
CAN Communication Unit ................................... ... 18
Function of Detecting Ignition Relay Malfunction ... 18
CONSULT-II Function (IPDM E/R) ...................... ... 19
CONSULT-II INSPECTION PROCEDURE ...... ... 19
SELF-DIAG RESULTS ..................................... ... 19
DATA MONITOR .............................................. ... 19
ACTIVE TEST .................................................. ... 20
Auto Active Test .................................................. ... 21
DESCRIPTION ................................................. ... 21
OPERATION PROCEDURE ............................ ... 21
INSPECTION IN AUTO ACTIVE TEST MODE ... 22
Schematic ........................................................... ... 24
IPDM E/R Terminal Arrangement ........................ ... 25
IPDM E/R Power/Ground Circuit Inspection ....... ... 26
Inspection With CONSULT-II (Self-Diagnosis) .... ... 27
Removal and Installation of IPDM E/R ................ ... 28
REMOVAL ........................................................ ... 28
INSTALLATION ................................................ ... 28 GROUND ................................................................
... 29
Ground Distribution .............................................. ... 29
MAIN HARNESS .............................................. ... 29
ENGINE ROOM HARNESS ............................. ... 32
ENGINE HARNESS/VK ENGINE MODELS ..... ... 35
ENGINE HARNESS/VQ ENGINE MODELS .... ... 36
ENGINE CONTROL HARNESS/VK ENGINE
MODELS .......................................................... ... 37
ENGINE CONTROL HARNESS/VQ ENGINE
MODELS .......................................................... ... 38
BODY HARNESS ............................................. ... 39
BODY NO. 2 HARNESS .................................. ... 41
ROOM LAMP HARNESS ................................. ... 42
HARNESS .............................................................. ... 43
Harness Layout ................................................... ... 43
HOW TO READ HARNESS LAYOUT .............. ... 43
OUTLINE .......................................................... ... 44
MAIN HARNESS .............................................. ... 45
ENGINE ROOM HARNESS ............................. ... 48
ENGINE HARNESS/VK ENGINE MODELS ..... ... 51
ENGINE HARNESS/VQ ENGINE MODELS .... ... 52
ENGINE CONTROL HARNESS/VK ENGINE
MODELS .......................................................... ... 53
ENGINE CONTROL HARNESS/VQ ENGINE
MODELS .......................................................... ... 55
BODY HARNESS ............................................. ... 57
BODY NO. 2 HARNESS .................................. ... 59
ROOM LAMP HARNESS ................................. ... 60
FRONT DOOR HARNESS ............................... ... 61
REAR DOOR HARNESS ................................. ... 62
BACK DOOR HARNESS ................................. ... 63
Wiring Diagram Codes (Cell Codes) ................... ... 64
ELECTRICAL UNITS LOCATION ......................... ... 67
Electrical Units Location ...................................... ... 67
ENGINE COMPARTMENT ............................... ... 67
PASSENGER COMPARTMENT ...................... ... 68
LUGGAGE COMPARTMENT ........................... ... 70
HARNESS CONNECTOR ...................................... ... 71
Description ........................................................... ... 71
HARNESS CONNECTOR (TAB-LOCKING

PG-4
POWER SUPPLY ROUTING CIRCUIT
Revision: 2006 July 2007 FX35/FX45
Wiring Diagram — POWER —NKS003G7
BATTERY POWER SUPPLY — IGNITION SW. IN ANY POSITION
TKWM4458E