2008 INFINITI FX35 battery

INTERIOR ROOM LAMPLT-161
< SERVICE INFORMATION >
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1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and personal lamp (RH and LH) harness connectors.
OK or NG
OK >> Replace BCM if personal lamp does not work after set- ting the connector again. Refer to BCS-13, "
Removal and Installation of BCM".
NG >> Repair harness or connector.
Ignition Keyhole Illumination Control Does Not OperateINFOID:0000000001381759
1.CHECK EACH SWITCH
CONSULT-III DATA MONITOR
1. Select “INT LAMP” of BCM data monitor item.
2. Check that switches listed in display item list turn ON-OFF linked with switch operation. Refer to LT-155,
"CONSULT-III Functions (BCM)" for switches and their functions.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
2.ACTIVE TEST
CONSULT-III ACTIVE TEST
1. Select “IGN ILLUM” of BCM (INT LAMP) active test item.
2. With operating the test item, check the ignition ke y hole illumination operation (When interior room lamp
switch is in DOOR position).
OK or NG
OK >> Replace BCM. Refer to BCS-13, "Removal and Installation 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.
4.CHECK IGNITION KEY HOLE ILLUMINATION BULB
BCM Personal lamp Continuity
Connector Terminal Connector Terminal
M4 41 RH R55
2Yes
LH R54
PKIB3517E
Ignition key hole illumination
should operate.
1 – Ground : Battery voltage.
PKIA5260E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INTERIOR ROOM LAMPLT-163
< SERVICE INFORMATION >
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1. Turn ignition switch OFF.
2. Check voltage between front step lamp (driver side and passen- ger side) harness connector and ground.
3. Check voltage between rear step lamp (LH and RH) harness connector 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 and front step lamp harness connector.
3. Check continuity between BCM harness connector and rear step lamp harness connector.
OK or NG
OK >> Replace BCM if step lamp does not work after setting the connector again. Refer to BCS-13,
"Removal and Installation of BCM".
NG >> Repair harness or connector.
4.CHECK STEP LAMP CIRCUIT
1. Disconnect BCM connector and front door driver side step lamp connector.
Te r m i n a l s Vo l ta g e
(Approx.)
(+)
(-)
Front step lamp connector Terminal
Driver side D9 1 Ground Battery voltage
Passenger
side D39 1
Te r m i n a l s Voltag e
(Approx.)
(+)
(-)
Rear step lamp connector Terminal
LH D60 1 Ground Battery voltage
RH D80 1
PKIA5264E
BCM
connector Te r m i n a l Front step lamp
connector Terminal Continuity
M4 47 Driver side D9 2
Ye s
Passenger
side D39 2
BCM
connector Terminal Rear step lamp connector Terminal Continuity
M4 47 LH D80 2
Ye s
RH D60 2
PKIB3522E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LT-164
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
2. Check continuity between BCM harness connector and frontstep lamp harness connector.
3. Check continuity between BCM harness connector and rear step lamp harness connector.
OK or NG
OK >> Replace BCM if step lamp does not work after setting the connector again. Refer to BCS-13,
"Removal and Installation of BCM".
NG >> Repair harness or connector.
All Interior Room La mps Do Not OperateINFOID:0000000001328419
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-13, "
Removal and Installa-
tion of BCM".
Bulb ReplacementINFOID:0000000001328420
IGNITION KEY HOLE ILLUMINATION (without Intelligent Key)
1. Remove combination meter. Refer to DI-22, "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 ILLUMINA TION (with Intelligent Key)
BCM
connector Te r m i n a l Front step lamp
connector Terminal Continuity
M4 41 Driver side D9 1
Ye s
Passenger
side D39 1
BCM
connector Terminal Rear step lamp connector Terminal Continuity
M4 41 LH D80 1
Ye s
RH D60 1
PKIB3523E
41 – Ground : Battery voltage.
SKIA5952E
Ignition key hole illu mination : 12 V - 0.8 W
SKIA5575E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ILLUMINATIONLT-169
< SERVICE INFORMATION >
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ILLUMINATION
System DescriptionINFOID:0000000001328422
Control of illumination lamps operation is dependent upon position of lighting switch (combination switch).
When lighting switch is placed in the 1ST or 2ND positi on (or if auto light system is activated), BCM (body con-
trol module) receives input signal requesting illuminati on 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 co ntrols 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
 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)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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LT-170
< SERVICE INFORMATION >
ILLUMINATION
 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, batte ry 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 2 ND position (or if auto light system is activated) after
illumination lamps are turned off by battery save r control, and illumination lamps illuminate again.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-III.
CAN Communication System DescriptionINFOID:0000000001328423
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 s peed 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 CA N 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 UnitINFOID:0000000001328424
Refer to LAN-43, "CAN System Specification Chart".
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

MA-4
< SERVICE INFORMATION >
GENERAL MAINTENANCE
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).
Accelerator pedalCheck the pedal for smooth operation and make sure the pedal does not catch
or require uneven effort. Keep the floor mats away from the pedal. —
Brakes Check that the brake does not pull the vehicle to one side when applied. —
Brake pedal and
booster Check the pedal for smooth operation and make sure it has the proper distance
under it when depressed fully. Check the brake booster function. Be sure to
keep the floor mats away from the pedal. BR-5
,
BR-14
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-
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.
—
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-12
, MA-19
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, de-
terioration or loose connections. —
Brake fluid level Make sure that the brake fluid level is between the “MAX” and “MIN” lines on the
reservoir. MA-32

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 re-
quire frequent checks of the battery fluid level. SC-4
Engine drive belts
Make sure that no belt is frayed, worn, cracked or oily. MA-11, MA-19
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-15,
MA-22
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-33
Exhaust system
Make sure there are no loose supports, cracks or holes. If the sound of the ex-
haust seems unusual or there is a smell of exhaust fumes, immediately locate
the trouble and correct it. MA-26
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. —
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

PG-4
< SERVICE INFORMATION >
POWER SUPPLY ROUTING CIRCUIT
Wiring Diagram - POWER -
INFOID:0000000001328866
BATTERY POWER SUPPLY — IGNITION SW. IN ANY POSITION
TKWM4458E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

PG-24
< SERVICE INFORMATION >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link blown, be sure to e liminate cause of malfunction before installing new one.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check voltage between IPDM E/R harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
1. Disconnect IPDM E/R harness connectors.
2. Check continuity between IPDM E/R harness connectors and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
U1000 CAN COMM CIRCUITINFOID:0000000001366489
1.PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result” of IPDM E/R.
Is
“CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-43, "CAN System Specification Chart".
NO >> Refer to GI-25, "
How to Perform Efficient Diagnosis for an Electrical Incident".
Removal and Installation of IPDM E/RINFOID:0000000001328880
REMOVAL
1. Remove battery. Refer to SC-6, "Removal and Installation".
Terminal No. Power source Fuse and fusible link No.
1
Battery power E
2 C
— 71
78
Te r m i n a l s
Voltage (Ap-
prox.)
(+) (-)
IPDM E/R connector Terminal Ground
E3 1
Battery voltage
2
PKIB6562E
IPDM E/R connector Terminal
GroundContinuity
E8 38
E9 50
Ye s
60
SKIA6184E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C