2006 INFINITI FX35 low beam

LAN-46
[CAN]
CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
Door lock/unlock
request signal TR
Ignition knob switch
signal TR
Key warning signal T R
Power window open
request signal TR
Sleep wake up signal TR R
TR
A/C switch signal R T
Blower fan motor
switch signal RT
Day time running
light request signal TR
Door lock/unlock sta-
tus signal RT
Door switch signal R R T R R R
Front fog light
request signal TR
Front wiper request
signal RT R
High beam request
signal TR R
Horn chirp signal T R
Ignition switch signal T R R
Key fob door unlock
signal TR
Key fob ID signal T R
Key switch signal T R
Low beam request
signal TR
Position light request
signal RTR R
Rear window defog-
ger switch signal TR
Theft warning horn
request signal TR
Tire pressure signal T R
Turn indicator signal T R R
Oil pressure switch
signal RT
TR
Steering angle sen-
sor signal TR
Signals ECM TCM
Dis-
play
con-
trol
unit AW D
con- trol
unit ICC
unit Intel-
ligent Key unit BCM Steer-
ing
angle
sen- sor LDW
cam- era
unit Uni-
fied
meter and
A/C
amp. ICC
sen-
sor ABS
actu- ator and
elec- tric
unit
(con- trol
unit) Driver
seat
con-
trol
unit IPDM
E/R

LAN-48
[CAN]
CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
Front wiper stop
position signal RT
High beam status
signal R
T
Hood switch signal R T
Low beam status sig-
nal R
T
Rear window defog-
ger control signal RR R T
Signals ECM TCM
Dis-
play
con-
trol
unit AW D
con- trol
unit ICC
unit Intel-
ligent Key unit BCM Steer-
ing
angle
sen- sor LDW
cam- era
unit Uni-
fied
meter and
A/C
amp. ICC
sen-
sor ABS
actu- ator and
elec- tric
unit
(con- trol
unit) Driver
seat
con-
trol
unit IPDM
E/R

LT-1
LIGHTING SYSTEM
K ELECTRICAL
CONTENTS
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SECTION LT
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Revision: 2006 December 2006 FX35/FX45
LIGHTING SYSTEM
PRECAUTIONS ..................................................... ..... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 5
General Precautions for Service Operations ....... ..... 6
HEADLAMP - XENON TYPE - .............................. ..... 7
Component Parts and Harness Connector Location ..... 7
System Description ............................................. ..... 7
OUTLINE .......................................................... ..... 7
HEADLAMP OPERATION ............................... ..... 8
COMBINATION SWITCH READING FUNCTION ..... 9
EXTERIOR LAMP BATTERY SAVER CONTROL ..... 9
AUTO LIGHT OPERATION (IF EQUIPPED) .... ..... 9
VEHICLE SECURITY SYSTEM ....................... ..... 9
XENON HEADLAMP ........................................ ..... 9
CAN Communication System Description ........... ..... 9
CAN Communication Unit ................................... ..... 9
Schematic ........................................................... ... 10
Wiring Diagram — H/LAMP — ............................ .... 11
Terminals and Reference Values for BCM .......... ... 15
Terminals and Reference Values for IPDM E/R .. ... 16
How to Proceed With Trouble Diagnosis ............. ... 17
Preliminary Check ............................................... ... 17
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ................................................................. ... 17
CONSULT-II Functions (BCM) ............................ ... 19
CONSULT-II BASIC OPERATION .................... ... 19
WORK SUPPORT ............................................ ... 19
DATA MONITOR .............................................. ... 19
ACTIVE TEST .................................................. ... 20
CONSULT-II Functions (IPDM E/R) .................... ... 21
CONSULT-II BASIC OPERATION .................... ... 21
DATA MONITOR .............................................. ... 21
ACTIVE TEST .................................................. ... 22
Headlamp Does Not Change To High Beam (Both
Sides) .................................................................. ... 22
Headlamp Does Not Change To High Beam (One
Side) .................................................................... ... 24
Headlamp Low Beam Does Not Illuminate (Both
Sides) .................................................................. ... 25 Headlamp Low Beam Does Not Illuminate (One
Side) .................................................................... ... 28
Headlamp RH Low Beam and High Beam Does Not
Illuminate ............................................................. ... 29
Headlamp LH Low Beam and High Beam Does Not
Illuminate ............................................................. ... 30
Headlamps Do Not Turn OFF .............................. ... 31
General Information for Xenon Headlamp Trouble
Diagnosis ............................................................. ... 33
Caution: ............................................................... ... 33
Xenon Headlamp Trouble Diagnosis ................... ... 33
Aiming Adjustment ............................................... ... 34
PREPARATION BEFORE ADJUSTING ........... ... 34
LOW BEAM AND HIGH BEAM ........................ ... 34
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ......... ... 35
Bulb Replacement ............................................... ... 35
HEADLAMP HIGH/LOW BEAM ....................... ... 35
DAYTIME/PARKING LAMP .............................. ... 36
FRONT TURN SIGNAL LAMP ......................... ... 36
FRONT SIDE MARKER LAMP ........................ ... 36
Removal and Installation ..................................... ... 36
REMOVAL ........................................................ ... 36
INSTALLATION ................................................ ... 37
Disassembly and Assembly ................................. ... 37
DISASSEMBLY ................................................ ... 37
ASSEMBLY ...................................................... ... 37
DAYTIME LIGHT SYSTEM .................................... ... 39
Component Parts and Harness Connector Location ... 39
System Description .............................................. ... 39
OUTLINE .......................................................... ... 39
DAYTIME LIGHT OPERATION ........................ ... 40
COMBINATION SWITCH READING FUNCTION ... 40
AUTO LIGHT OPERATION .............................. ... 40
CAN Communication System Description ........... ... 40
CAN Communication Unit .................................... ... 40
Schematic ............................................................ ... 41
Wiring Diagram — DTRL — ................................ ... 42
Terminals and Reference Values for BCM ........... ... 46
How to Proceed With Trouble Diagnosis ............. ... 48

HEADLAMP - XENON TYPE - LT-7
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Revision: 2006 December 2006 FX35/FX45
HEADLAMP - XENON TYPE -PFP:26010
Component Parts and Harness Connector LocationNKS002V5
System DescriptionNKS002V6
Control of the headlamp system operation is dependent upon the position of the combination switch (lighting
switch). When the lighting switch is placed in the 2ND position, the BCM (body control module) receives input
signal requesting the headlamps (and tail lamps) illuminate. This input signal is communicated to the IPDM E/
R (intelligent power distribution module engine room) through the CAN communication lines. The CPU (central
processing unit) located in the IPDM E/R controls the headlamp high and headlamp low relay coils. These
relays, when energized, direct power to the respective headlamps, which then illuminate.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
OUTLINE
Power is supplied at all times

to headlamp high relay, located in IPDM E/R

to headlamp low relay, located in IPDM E/R and

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

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

to CPU located in IPDM E/R,

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

to CPU located in IPDM E/R,

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

to combination meter terminal 8.
PKIC9683E

LT-8
HEADLAMP - XENON TYPE -
Revision: 2006 December 2006 FX35/FX45
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 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 BCM terminal 11.
Ground is supplied

to BCM terminals 49 and 52

through grounds M35, M45 and M85,

to IPDM E/R terminals 38 and 60

through grounds E21, E50 and E51,

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85.
HEADLAMP OPERATION
Low Beam Operation
With the lighting switch in the 2ND position, the BCM receives input signal requesting the headlamps to illumi-
nate. This input signal is communicated to the IPDM E/R through the CAN communication lines. The CPU
located in the IPDM E/R controls the headlamp low relay coil, which when energized, directs power

through 15A fuse (No. 76, located in IPDM E/R)

through IPDM E/R terminal 20

to front combination lamp RH terminal 6,

through 15A fuse (No. 86, located in IPDM E/R)

through IPDM E/R terminal 30

to front combination lamp LH terminal 6.
Ground is supplied

to front combination lamp RH and LH terminals 7

through grounds E21, E50 and E51,
With power and ground supplied, low beam headlamps illuminate.
High Beam Operation/Flash-to-Pass Operation
With the lighting switch in the 2ND position and placed in the HIGH or PASS position, the BCM receives input
signal requesting the headlamp high beams to illuminate. This input signal is communicated to the IPDM E/R
through the CAN communication lines. The CPU located in the IPDM E/R controls the headlamp high relay
coil and low relay coil, which when energized, directs power

through 15A fuse (No. 76, located in IPDM E/R)

through IPDM E/R terminal 20

to front combination lamp RH terminal 6,

through 15A fuse (No. 86, located in IPDM E/R)

through IPDM E/R terminal 30

to front combination lamp LH terminal 6,

through 10A fuse (No. 72, located in IPDM E/R)

through IPDM E/R terminal 27

to front combination lamp RH terminal 5,

through 10A fuse (No. 74, located in IPDM E/R)

through IPDM E/R terminal 28

to front combination lamp LH terminal 5.

HEADLAMP - XENON TYPE - LT-9
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Ground is supplied

to front combination lamp RH and LH terminals 7

through grounds E21, E50 and E51,
With power and ground supplied, the high beam headlamps illuminate.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
The unified meter and A/C amp. that received the high beam request signal by BCM through the CAN commu-
nication makes a high beam indicator lamp turn on in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned OFF.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
AUTO LIGHT OPERATION (IF EQUIPPED)
Refer to LT- 5 6 , "System Description" .
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-180, "VEHICLE
SECURITY (THEFT WARNING) SYSTEM" .
XENON HEADLAMP
Xenon type lamps are used for to the low beam headlamps. Xenon bulbs do not use a filament. Instead, they
produce light when a high voltage current is passed between two tungsten electrodes through a mixture of
xenon (an inert gas) and certain other metal halides. In addition to strong lighting power, electronic control of
the power supply gives the headlamps stable quality and tone color.
Followings are some advantages of the xenon type headlamp.

The light produced by the headlamps is white color similar to sunlight that is easy to the eyes.

Light output is nearly double that of halogen headlamps, affording increased area of illumination.

Retroreflected luminance increases and the contrast enhances on the wet road in the rain. That makes
visibility go up more than the increase of the light volume.

Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
CAN Communication System DescriptionNKS002V7
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 UnitNKS002V8
Refer to LAN-32, "CAN Communication Unit" .

HEADLAMP - XENON TYPE - LT-15
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Revision: 2006 December 2006 FX35/FX45
Terminals and Reference Values for BCMNKS002VB
Terminal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
2GY Combination
switch input 5 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF Approx. 0 V
Lighting switch HIGH beam
(Operates only HIGH beam
switch)
Approx. 1.0 V
Lighting switch 2ND Approx. 2.0 V
3L/B Combination
switch input 4 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF Approx. 0 V
Any of the conditions below

Lighting switch 2ND

Lighting switch PASSING
(Operates only PASSING
switch)
Approx. 1.0 V
11 L G Ignition switch
(ACC) ACC — Battery voltage
34 W/B Combination
switch output 3 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF
Approx. 7.2 V
Any of the conditions below

Lighting switch 2ND

Lighting switch HI beam
(Operates only HI beam
switch)
Approx. 1.2 V
PKIB4959J
PKIB4953J
PKIB4959J
PKIB4960J
PKIB4958J

HEADLAMP - XENON TYPE - LT-19
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Revision: 2006 December 2006 FX35/FX45
CONSULT-II Functions (BCM)NKS002VF
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-II BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
WORK SUPPORT
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
3. Touch item on “SELECT WORK ITEM” screen.
4. Touch “START”.
5. Touch “CHANGE SET”.
6. The setting will be changed and “CUSTOMIZING COMPLETED” will be displayed.
7. Touch “END”.
Display Item List
DATA MONITOR
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
3. Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on “SELECT MONITOR ITEM” screen.
4. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “ALL SIG- NALS” is selected, all the items will be monitored.
5. Touch “START”.
6. Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop recording, touch “STOP”.
Display Item List
BCM diagnosis part Diagnosis mode Description
HEADLAMP WORK SUPPORT Changes the setting for each function.
DATA MONITOR Displays BCM input data in real time. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
BCM SELF-DIAG RESULTS BCM performs self-diagnosis of CAN communication.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
Item Description CONSULT-II Factory setting
BATTERY SAVER SET Exterior lamp battery saver control mode can be changed in this mode.
Selects exterior lamp battery saver control mode between two ON/OFF. ON
×
OFF —
ALL SIGNALS Monitors all the signals.
SELECTION FROM MENU Selects items and monitors them.
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from ignition switch signal.
ACC ON SW “ON/OFF” Displays “ACC (ON)/OFF, Ignition OFF (OFF)” status judged from ignition switch signal.
HI BEAM SW “ON/OFF” Displays status (high beam switch: ON/Others: OFF) of high beam switch judged from
lighting switch signal.
HEAD LAMP SW 1 “ON/OFF” Displays status (headlamp switch 1: ON/Others: OFF) of headlamp switch 1 judged from
lighting switch signal.
HEAD LAMP SW 2 “ON/OFF” Displays status (headlamp switch 2: ON/Others: OFF) of headlamp switch 2 judged from
lighting switch signal.