2008 INFINITI FX35 wiring

INTERIOR ROOM LAMPLT-145
< SERVICE INFORMATION >
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Wiring Diagram - ROOM/L -INFOID:0000000001328409
TKWM4314E
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LT-154
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
How to Proceed with Trouble Diagnosis
INFOID:0000000001328411
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-138, "
System Description".
3. Perform Preliminary Check. Refer to LT-154, "
Preliminary Check".
4. Check symptom and repair or r eplace the cause of malfunction.
5. Does interior room lamp operate normally ? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckINFOID:0000000001328412
CHECK FOR POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES
Check for blown fuses.
Refer to LT- 1 4 5 , "Wiring Diagram - ROOM/L -".
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate caus e of malfunction before installing new fuse. Refer to PG-
3.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
62 W Front door switch (driv-
er side) signal
OFFFront door switch
(driver side) ON (open) Approx. 0 V
OFF (closed)
Approx. 7.0 - 7.5 V
63 P Rear door switch LH
signal OFF
Rear door switch
LH ON (open) Approx. 0 V
OFF (closed) Ba
ttery voltage
Te r m i n a l
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J
Unit Power source Fuse and fusible link No.
BCM Battery M
22
Ignition switch ON or START position 1
(+) (-)Ignition switch position
BCM con- nector Te r m i n a l O F F O N
M3 38 GroundApprox. 0 V Battery voltage
M4 42 Battery voltage Battery voltage
55 Battery voltage Battery voltage
PKIA7520E
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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".
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ILLUMINATIONLT-173
< SERVICE INFORMATION >
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Wiring Diagram - ILL -INFOID:0000000001328426
TKWM4329E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

PG-1
ELECTRICAL
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CONTENTS
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
SERVICE INFORMATION .. ..........................2
DTC INDEX ..................................................... .....2
U1000 .................................................................. ......2
POWER SUPPLY ROUTING CIRCUIT ...............3
Schematic ........................................................... ......3
Wiring Diagram - POWER - ......................................4
Fuse ........................................................................16
Fusible Link .............................................................16
Circuit Breaker ........................................................16
IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) .................
17
System Description ............................................. ....17
CAN Communication System Description ...............18
CAN Communication Unit .......................................18
Function of Detecting Ignition Relay Malfunction ....18
CONSULT-III Function (IPDM E/R) ..................... ....18
Auto Active Test ......................................................20
Schematic ...............................................................22
IPDM E/R Terminal Arrangement ...........................23
IPDM E/R Power/Ground Circuit Inspection ...........23
U1000 CAN COMM CIRCUIT .................................24
Removal and Installation of IPDM E/R ....................24
GROUND ...........................................................26
Ground Distribution .............................................. ....26
HARNESS .........................................................40
Harness Layout ................................................... ....40
Wiring Diagram Codes (Cell Codes) .......................60
ELECTRICAL UNITS LOCATION ....................64
Electrical Units Location ..........................................64
HARNESS CONNECTOR .................................68
Description ...............................................................68
ELECTRICAL UNITS ........................................71
Terminal Arrangement .............................................71
SMJ (SUPER MULTIPLE JUNCTION) .............73
Terminal Arrangement .............................................73
STANDARDIZED RELAY .................................75
Description ...............................................................75
FUSE BLOCK - JUNCTION BOX (J/B) ............77
Terminal Arrangement .............................................77
FUSE, FUSIBLE LINK AND RELAY BOX ........78
Terminal Arrangement .............................................78
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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-16
< SERVICE INFORMATION >
POWER SUPPLY ROUTING CIRCUIT
Fuse
INFOID:0000000001328867
 If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
 Use fuse of specified rating. Never use fuse of more than specified
rating.
 Do not partially install fuse; always insert it into fuse holder prop- erly.
 Remove fuse for “ELECTRICAL PARTS (BAT)” if vehicle is not used for a long period of time.
Fusible LinkINFOID:0000000001328868
A melted fusible link can be detected either by visual inspection or by
feeling with finger tip. If its condition is questionable, use circuit
tester or test lamp.
CAUTION:
• If fusible link should melt, it is possible that critical circuit
(power supply or large current carrying circuit) is shorted. In
such a case, carefully check an d eliminate cause of malfunc-
tion.
 Never wrap outside of fusible li nk with vinyl tape. Important:
Never let fusible link touch an y other wiring harness, vinyl or
rubber parts.
Circuit BreakerINFOID:0000000001328869
The PTC thermistor generates heat in response to current flow. The
temperature (and resistance) of the thermistor element varies with
current flow. Excessive current flow will cause the element's temper-
ature to rise. When the temperature reaches a specified level, the
electrical resistance will rise sharply to control the circuit current.
Reduced current flow will cause the element to cool. Resistance falls
accordingly and normal circuit current flow is allowed to resume.
CEL083
CKIM0195E
SEL109W
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-17
< SERVICE INFORMATION >
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
System DescriptionINFOID:0000000001328870
 IPDM E/R (Intelligent Power Distribution Module Engi ne Room) integrates the relay box and fuse block
which were originally placed in engine compartment. It c ontrols integrated relay via IPDM E/R control circuit.
 IPDM E/R-integrated control circuit performs ON-OFF operation of relay, CAN communication control, oil
pressure switch signal, and hood switch signal reception, etc.
 It controls operation of each electrical pa rt via ECM, BCM and CAN communication lines.
CAUTION:
None of the IPDM E/R-integr ated relays can be removed.
SYSTEMS CONTROLLED BY IPDM E/R
IPDM E/R receives a request signal fr om each control unit with CAN communication. It controls each system.
CAN COMMUNICATION LINE CONTROL
With CAN communication, by connecting each control uni t using two communication lines (CAN-L line, CAN-H
line), it is possible to transmit maximum amount of in formation with minimum wiring. Each control unit can
transmit and receive data, and reads necessary information only.
Fail- Safe Control
 When CAN communication with other control units is impos sible, IPDM E/R performs fail-safe control. After
CAN communication recovers normally, it also returns to normal control.
 Operation of control parts by IPDM E/R during fail-safe mode is as follows:
IPDM E/R STATUS CONTROL
In order to save power, IPDM E/R switches status by itself based on each operating condition.
1. CAN communication status  CAN communication is normally performed with other control units.
 Individual unit control by IPDM E/R is normally performed.
 When sleep request signal is received from BCM, mode is switched to sleep waiting status.
2. Sleep waiting status  Process to stop CAN communication is activated.
Control system Transmit control unit Control part
Lamp control BCM  Headlamps (HI, LO)
 Front fog lamps
 Parking, license plate, side marker and tail lamps
Wiper control BCM Front wipers
Rear window defogger control BCM Rear window defogger
A/C compressor control ECM A/C compressor (magnet clutch)
Cooling fan control ECM Cooling fan
Horn control BCM Horn
Controlled system Fail-safe mode
Headlamp  With the ignition switch ON, the headlamp (low) is ON.
 With the ignition switch OFF, the headlamp (low) is OFF.
Parking, license plate side marker, and
tail lamps  With the ignition switch ON, the parking, license plate, side marker and tail lamps is ON.
 With the ignition switch OFF, the parking, license plate, side marker and tail lamps is OFF.
Cooling fan  With the ignition switch ON, the cooling fan HI operates.
 With the ignition switch OFF, the cooling fan stops.
Front wiper Until the ignition switch is turned OFF, the front wiper LO and HI remains in the same status
it was in just before fail-safe control was initiated.
Rear window defogger Rear window defogger relay OFF
A/C compressor A/C compressor OFF
Front fog lamps Front fog lamp relay OFF
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