headlamp INFINITI FX35 2006 Owner's Guide

ELECTRICAL LOAD SIGNAL EC-1305
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 December 2006 FX35/FX45
ELECTRICAL LOAD SIGNALPFP:25350
DescriptionNBS004HE
The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred
through the CAN communication line from BCM to ECM via IPDM E/R.
CONSULT-II Reference Value in Data Monitor ModeNBS004HF
Specification data are reference values.
Diagnostic ProcedureNBS004HG
1. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
1. Turn ignition switch ON.
2. Connect CONSULT-II and select “DATA MONITOR” mode.
3. Select “LOAD SIGNAL” and check indication under the following conditions.
OK or NG
OK >> GO TO 2.
NG >> GO TO 4.
2. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
Check “LOAD SIGNAL” indication under the following conditions.
OK or NG
OK >> GO TO 3.
NG >> GO TO 5.
MONITOR ITEM CONDITION SPECIFICATION
LOAD SIGNAL

Ignition switch: ON Rear window defogger switch: ON
and/or
Lighting switch: 2nd position ON
Rear window defogger switch and light-
ing switch: OFF OFF
HEATER FAN SW

Engine: After warming up, idle
the engine Heater fan switch: ON ON
Heater fan switch: OFF OFF
Condition Indication
Rear window defogger switch: ON ON
Rear window defogger switch: OFF OFF
PBIB0103E
Condition Indication
Lighting switch: ON at 2nd position ON
Lighting switch: OFF OFF
PBIB0103E

EC-1306
[VK45DE]
ELECTRICAL LOAD SIGNAL
Revision: 2006 December 2006 FX35/FX45
3. CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION
Select “HEATER FAN SW” and check indication under the following
conditions.
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
4. CHECK REAR WINDOW DEFOGGER SYSTEM
Refer to GW-67, "
REAR WINDOW DEFOGGER" .
>> INSPECTION END
5. CHECK HEADLAMP SYSTEM
Refer to LT- 7 , "
HEADLAMP - XENON TYPE -" .
>> INSPECTION END
6. CHECK HEATER FAN CONTROL SYSTEM
Refer to AT C - 4 0 , "
TROUBLE DIAGNOSIS" .
>> INSPECTION END
Condition Indication
Heater fan control switch: ON ON
Heater fan control switch: OFF OFF
PBIB1995E

LT-1
LIGHTING SYSTEM
K ELECTRICAL
CONTENTS
C
D E
F
G H
I
J
L
M
SECTION LT
A
B
LT
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

LT-2Revision: 2006 December 2006 FX35/FX45 Preliminary Check ...............................................
... 49
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ................................................................. ... 49
INSPECTION PARKING BRAKE SWITCH CIR-
CUIT ................................................................. ... 50
CONSULT-II Functions (BCM) ............................. ... 51
CONSULT-II BASIC OPERATION .................... ... 51
DATA MONITOR ............................................... ... 51
ACTIVE TEST .................................................. ... 52
Daytime Light Control Does Not Operate Properly ... 53
Aiming Adjustment ............................................... ... 55
Bulb Replacement ............................................... ... 55
Removal and Installation ..................................... ... 55
Disassembly and Assembly ................................. ... 55
AUTO LIGHT SYSTEM .......................................... ... 56
Component Parts and Harness Connector Location ... 56
System Description .............................................. ... 56
OUTLINE .......................................................... ... 56
COMBINATION SWITCH READING FUNCTION ... 57
DELAY TIMER FUNCTION .............................. ... 57
CAN Communication System Description ........... ... 57
CAN Communication Unit .................................... ... 57
Major Components and Functions ....................... ... 57
Schematic ............................................................ ... 58
Wiring Diagram — AUTO/L — ............................. ... 59
Terminals and Reference Values for BCM ........... ... 62
Terminals and Reference Values for IPDM E/R ... ... 63
How to Proceed With Trouble Diagnosis ............. ... 63
Preliminary Check ............................................... ... 64
SETTING CHANGE FUNCTIONS .................... ... 64
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ................................................................. ... 64
CONSULT-II Functions (BCM) ............................. ... 66
CONSULT-II BASIC OPERATION .................... ... 66
WORK SUPPORT ............................................ ... 66
DATA MONITOR ............................................... ... 66
ACTIVE TEST .................................................. ... 68
CONSULT-II Functions (IPDM E/R) ..................... ... 68
CONSULT-II BASIC OPERATION .................... ... 68
DATA MONITOR ............................................... ... 68
ACTIVE TEST .................................................. ... 69
Symptom Chart .................................................... ... 69
Lighting Switch Inspection ................................... ... 69
Optical sensor System Inspection ....................... ... 70
Removal and Installation of Optical Sensor ......... ... 72
REMOVAL ........................................................ ... 72
INSTALLATION ................................................. ... 72
HEADLAMP AIMING CONTROL ........................... ... 73
Schematic ............................................................ ... 73
Wiring Diagram — H/AIM — ................................ ... 74
Removal and Installation ..................................... ... 77
REMOVAL ........................................................ ... 77
INSTALLATION ................................................. ... 77
Switch Circuit Inspection ..................................... ... 77
FRONT FOG LAMP ............................................... ... 78
Component Parts and Harness Connector Location ... 78
System Description .............................................. ... 78
OUTLINE .......................................................... ... 78
FRONT FOG LAMP OPERATION .................... ... 79 COMBINATION SWITCH READING FUNCTION
... 79
EXTERIOR LAMP BATTERY SAVER CONTROL ... 79
CAN Communication System Description ........... ... 79
CAN Communication Unit .................................... ... 79
Wiring Diagram — F/FOG — ............................... ... 80
Terminals and Reference Values for BCM ........... ... 82
Terminals and Reference Values for IPDM E/R ... ... 82
How to Proceed With Trouble Diagnosis ............. ... 83
Preliminary Check ................................................ ... 83
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................. ... 83
CONSULT-II Functions (BCM) ............................. ... 84
CONSULT-II Functions (IPDM E/R) ..................... ... 84
Front Fog Lamps Do Not Illuminate (Both Sides) ... 85
Front Fog Lamp Does Not Illuminate (One Side) . ... 87
Aiming Adjustment ............................................... ... 88
Bulb Replacement ................................................ ... 89
Removal and Installation ...................................... ... 89
REMOVAL ......................................................... ... 89
INSTALLATION ................................................. ... 89
TURN SIGNAL AND HAZARD WARNING LAMPS ... 90
Component Parts and Harness Connector Location ... 90
System Description .............................................. ... 90
TURN SIGNAL OPERATION ............................ ... 90
HAZARD LAMP OPERATION .......................... ... 91
REMOTE CONTROL ENTRY SYSTEM OPER-
ATION ............................................................... ... 92
COMBINATION SWITCH READING FUNCTION ... 93
CAN Communication System Description ........... ... 93
CAN Communication Unit .................................... ... 93
Schematic ............................................................ ... 94
Wiring Diagram — TURN — ................................ ... 95
Terminals and Reference Values for BCM ........... ... 98
Terminals and Reference Value for Rear Combina-
tion Lamp Control Unit ......................................... ... 99
How to Proceed With Trouble Diagnosis ............. .102
Preliminary Check ................................................ .102
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................. .102
CONSULT-II Functions (BCM) ............................. .104
CONSULT-II BASIC OPERATION .................... .104
DATA MONITOR ............................................... .104
ACTIVE TEST ................................................... .104
Turn Signal Lamp Does Not Operate ................... .105
Rear Turn Signal Lamp Does Not Operate .......... .106
Hazard Warning Lamp Does Not Operate But Turn
Signal Lamp Operate ........................................... .108
Bulb Replacement (Front Turn Signal Lamp) ....... .110
Bulb Replacement (Rear Turn Signal Lamp) ....... .110
Removal and Installation of Front Turn Signal Lamp .110
Removal and Installation of Rear Turn Signal Lamp .110
Removal and Installation of Rear Combination
Lamp Control Unit ................................................ .110
REMOVAL ......................................................... .110
INSTALLATION ................................................. .110
LIGHTING AND TURN SIGNAL SWITCH ............. . 111
Removal and Installation ...................................... . 111
REMOVAL ......................................................... . 111
INSTALLATION ................................................. . 111

LT-4Revision: 2006 December 2006 FX35/FX45 FRONT STEP LAMP ........................................
.186
REAR STEP LAMP .......................................... .186
LUGGAGE ROOM LAMP ................................. .186
VANITY MIRROR LAMP .................................. .186
MAP LAMP ....................................................... .187
INTERIOR ROOM LAMP ................................. .187
PERSONAL LAMP ........................................... .187
Removal and Installation ..................................... .187
LUGGAGE ROOM LAMP ................................. .187
MAP LAMP ....................................................... .188
INTERIOR ROOM LAMP ................................. .188
PERSONAL LAMP ........................................... .188
ILLUMINATION ...................................................... .189
System Description .............................................. .189
ILLUMINATION OPERATION BY LIGHTING
SWITCH ........................................................... .189 EXTERIOR LAMP BATTERY SAVER CONTROL
.190
CAN Communication System Description ........... .191
CAN Communication Unit .................................... .191
Schematic ............................................................ .192
Wiring Diagram — ILL — ..................................... .194
Bulb Replacement ................................................ .203
GLOVE BOX LAMP .......................................... .203
A/T DEVICE ILLUMINATION ............................ .203
COIN BOX ILLUMINATION .............................. .203
Removal and Installation ...................................... .203
ILLUMINATION CONTROL SWITCH ............... .203
BULB SPECIFICATIONS ....................................... .204
Headlamp ............................................................. .204
Exterior Lamp ....................................................... .204
Interior Lamp/Illumination ..................................... .204

LT-6
PRECAUTIONS
Revision: 2006 December 2006 FX35/FX45
General Precautions for Service OperationsNKS002V4

Never work with wet hands.

Xenon headlamp includes high voltage generating part. Be sure
to disconnect battery negative cable (negative terminal) or
power fuse before removing, installing, or touching the xenon
headlamp (including lamp bulb).

Turn the lighting switch OFF before disconnecting and connect-
ing the connector.

When turning the xenon headlamp on and while it is illuminated,
never touch the harness, bulb, and socket of the headlamp.

When checking the headlamp on/off operation, check it on vehi-
cle and with the power connected to the vehicle-side connector.

Do not touch the headlamp bulb glass surface with bare hands or allow oil or grease to get on it. Do not
touch the headlamp bulb just after the headlamp is turned off, because it is very hot.

Install the xenon headlamp bulb socket correctly. If it is installed
improperly, high-voltage leak or corona discharge may occur
that can melt the bulb, connector, and housing. Do not illuminate
the xenon headlamp bulb out of the headlamp housing. Doing
so can cause fire and harm your eyes.

When the bulb has burned out, wrap it in a thick vinyl bag and
discard. Do not break the bulb.

Leaving the bulb removed from the headlamp housing for a long
period of time can deteriorate the performance of the lens and
reflector (dirt, clouding). Always prepare a new bulb and have it
on hand when replacing the bulb.

When adjusting the headlamp aiming, turn the aiming adjust-
ment screw only in the tightening direction. (If it is necessary to loosen the screw, first fully loosen the
screw, and then turn it in the tightening direction.)

Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.
PKIA0183E
EL-3422D

HEADLAMP - XENON TYPE - LT-7
C
D E
F
G H
I
J
L
M A
B
LT
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
C
D E
F
G H
I
J
L
M A
B
LT
Revision: 2006 December 2006 FX35/FX45
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" .

LT-10
HEADLAMP - XENON TYPE -
Revision: 2006 December 2006 FX35/FX45
SchematicNKS002V9
TKWM4289E