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LIGHTING SYSTEM

K ELECTRICAL

B
SECTION
LIGHTING SYSTEM C

E
CONTENTS
PRECAUTIONS ......................................................... 4 . Headlamp Does Not Illuminate (One Side) ........... 25 . F
Precautions for Supplemental Restraint System Headlamps Do Not Turn OFF ................................ 27 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- General Information for Xenon Headlamp Trouble
SIONER" ................................................................. 4
. Diagnosis ............................................................... 28
. G
Precautions for Battery Service ............................... 4 . Caution: ................................................................. 28
.
General Precautions for Service Operations ........... 4 . Xenon Headlamp Trouble Diagnosis ..................... 28 .
HEADLAMP - XENON TYPE - .................................. 5 . Aiming Adjustment ................................................. 29 .
H
Component Parts and Harness Connector Location 5 ..... PREPARATION BEFORE ADJUSTING ............. 29 .
System Description ................................................. 5 . LOW BEAM AND HIGH BEAM .......................... 29 .
OUTLINE .............................................................. 5
. ADJUSTMENT USING AN ADJUSTMENT
HEADLAMP OPERATION ................................... 6 . SCREEN (LIGHT/DARK BORDERLINE) ........... 30 . I
COMBINATION SWITCH READING FUNCTION 7 ..... Bulb Replacement ................................................. 30 .
EXTERIOR LAMP BATTERY SAVER CONTROL 7 ..... HEADLAMP LOW/HIGH BEAM ......................... 30 .
AUTO LIGHT OPERATION .................................. 7 . FRONT FOG LAMP ........................................... 31 . J
VEHICLE SECURITY SYSTEM ........................... 7 . PARKING LAMP ................................................. 31 .
XENON HEADLAMP ............................................ 7 . FRONT TURN SIGNAL LAMP ........................... 31 .
CAN Communication System Description ............... 7 . Removal and Installation ....................................... 32 .
LT
CAN Communication Unit ....................................... 7 . REMOVAL .......................................................... 32.
Schematic ............................................................... 8
. INSTALLATION .................................................. 32 .
Wiring Diagram -- H/LAMP -- ................................ 9 . Disassembly .......................................................... 33
.
Terminals and Reference Values for BCM ............ 13 . Assembly ............................................................... 34
. L
Terminals and Reference Values for IPDM E/R .... 15 . Servicing to Replace Headlamps When Damaged 34 ...
How to Proceed With Trouble Diagnosis ............... 15 . REMOVAL AND INSTALLATION ....................... 34 .
Preliminary Check ................................................. 15 . DAYTIME LIGHT SYSTEM ...................................... 35 . M
CHECK POWER SUPPLY AND GROUND CIR- Component Parts and Harness Connector Location 35 ...
CUIT ................................................................... 15
. System Description ................................................ 35 .
CONSULT-II Functions (BCM) .............................. 16 . OUTLINE ............................................................ 35
.
CONSULT-II BASIC OPERATION ...................... 16 . DAYTIME LIGHT OPERATION .......................... 36 .
WORK SUPPORT .............................................. 16 . COMBINATION SWITCH READING FUNCTION 36 ...
DATA MONITOR ................................................ 17 . EXTERIOR LAMP BATTERY SAVER CONTROL 36 ...
ACTIVE TEST .................................................... 18 . AUTO LIGHT OPERATION ................................ 36 .
CONSULT-II Functions (IPDM E/R) ...................... 18 . CAN Communication System Description ............. 37 .
CONSULT-II BASIC OPERATION ...................... 18 . CAN Communication Unit ...................................... 37 .
DATA MONITOR ................................................ 19 . Schematic .............................................................. 38
.
ACTIVE TEST .................................................... 19 . Wiring Diagram -- DTRL -- .................................. 39 .
Headlamp Does Not Change To High Beam (Both Terminals and Reference Values for BCM ............. 43 .
Sides) .................................................................... 20
. Terminals and Reference Values for IPDM E/R ..... 45 .
Headlamp Does Not Change To High Beam (One How to Proceed With Trouble Diagnosis ............... 45 .
Side) ...................................................................... 22
. Preliminary Check ................................................. 46 .
Headlamp Does Not Illuminate (Both Sides) ......... 23 . CHECK POWER SUPPLY AND GROUND CIR-

Revision: 2006 August LT-1 2007 G35 Coupe
CUIT ................................................................... 46
. TURN SIGNAL OPERATION ..............................77 .
CHECK PARKING BRAKE SWITCH CIRCUIT ... 47 HAZARD LAMP OPERATION ............................78 .
CONSULT-II Functions (BCM) ............................... 48 . REMOTE KEYLESS ENTRY SYSTEM OPERA-
CONSULT-II Functions (IPDM E/R) ....................... 48 . TION ...................................................................79
.
Daytime Light Control Does Not Operate Properly 48 ... COMBINATION SWITCH READING FUNCTION ...79
Aiming Adjustment ................................................. 50 . CAN Communication System Description .............79 .
Bulb Replacement ................................................. 50 . CAN Communication Unit ......................................79 .
Removal and Installation ....................................... 50 . Schematic ..............................................................80
.
AUTO LIGHT SYSTEM ............................................ 51 . Wiring Diagram -- TURN -- ..................................81 .
Component Parts and Harness Connector Location 51 ... Terminals and Reference Values for BCM .............84 .
System Description ................................................ 51 . How to Proceed With Trouble Diagnosis ...............85 .
OUTLINE ............................................................ 51
. Preliminary Check ..................................................85 .
COMBINATION SWITCH READING FUNCTION 52 ... CHECK POWER SUPPLY AND GROUND CIR-
DELAY TIMER FUNCTION ................................ 52 . CUIT ....................................................................85
.
CAN Communication System Description ............. 52 . CONSULT-II Functions (BCM) ...............................86 .
CAN Communication Unit ...................................... 52 . CONSULT-II BASIC OPERATION ......................86 .
Major Components and Functions ......................... 52 . DATA MONITOR .................................................86 .
Schematic .............................................................. 53
. ACTIVE TEST .....................................................87 .
Wiring Diagram -- AUTO/L -- ............................... 54 . Turn Signal Lamp Does Not Operate .....................87 .
Terminals and Reference Values for BCM ............. 57 . Hazard Warning Lamp Does Not Operate But Turn
Terminals and Reference Values for IPDM E/R ..... 58 . Signal Lamp Operates ...........................................89 .
How to Proceed With Trouble Diagnosis ............... 58 . Bulb Replacement ..................................................90 .
Preliminary Check ................................................. 59 . FRONT TURN SIGNAL LAMP ............................90 .
SETTING CHANGE FUNCTIONS ...................... 59 . REAR TURN SIGNAL LAMP ..............................90 .
CHECK POWER SUPPLY AND GROUND CIR- Removal and Installation ........................................90 .
CUIT ................................................................... 59
. FRONT TURN SIGNAL LAMP ............................90 .
CONSULT-II Functions (BCM) ............................... 60 . REAR TURN SIGNAL LAMP ..............................90 .
CONSULT-II Functions (IPDM E/R) ....................... 60 . LIGHTING AND TURN SIGNAL SWITCH ...............91 .
Symptom Chart ...................................................... 60. Removal and Installation ........................................91 .
Lighting Switch Inspection ..................................... 60 . REMOVAL ...........................................................91 .
Optical sensor System Inspection ......................... 61 . INSTALLATION ...................................................91 .
Removal and Installation of Optical Sensor ........... 63 . HAZARD SWITCH ....................................................92 .
REMOVAL .......................................................... 63. Removal and Installation (M/T) ..............................92 .
INSTALLATION ................................................... 63 . REMOVAL ...........................................................92 .
FRONT FOG LAMP ................................................. 64 . INSTALLATION ...................................................92 .
Component Parts and Harness Connector Location 64 ... Removal and Installation (A/T) ...............................92 .
System Description ................................................ 64 . REMOVAL ...........................................................92 .
OUTLINE ............................................................ 64
. INSTALLATION ...................................................92 .
FRONT FOG LAMP OPERATION ...................... 65 . COMBINATION SWITCH .........................................93 .
COMBINATION SWITCH READING FUNCTION 65 ... Wiring Diagram -- COMBSW -- ...........................93 .
EXTERIOR LAMP BATTERY SAVER CONTROL 65 ... Combination Switch Reading Function ..................94 .
CAN Communication System Description ............. 65 . Terminals and Reference Values for BCM .............94 .
CAN Communication Unit ...................................... 65 . CONSULT-II Function (BCM) .................................99 .
Wiring Diagram -- F/FOG -- ................................. 66 . CONSULT-II BASIC OPERATION ......................99 .
Terminals and Reference Values for BCM ............. 68 . DATA MONITOR .................................................99 .
Terminals and Reference Values for IPDM E/R ..... 70 . Combination Switch Inspection ............................ 100 .
How to Proceed With Trouble Diagnosis ............... 70 . Removal and Installation ...................................... 102 .
Preliminary Check ................................................. 70 . STOP LAMP ........................................................... 103 .
CHECK POWER SUPPLY AND GROUND CIR- Wiring Diagram -- STOP/L -- ............................. 103 .
CUIT ................................................................... 70
. Bulb Replacement of High-Mounted Stop Lamp .. 105 .
CONSULT-II Functions (BCM) ............................... 71 . WITH REAR SPOILER ..................................... 105 .
CONSULT-II Functions (IPDM E/R) ....................... 71 . WITHOUT REAR SPOILER .............................. 105 .
Front Fog lamps Do Not Illuminate (Both Sides) ... 72 Bulb Replacement of Rear Combination Lamp (Stop
Front Fog Lamp Does Not Illuminate (One Side) ... 74 Lamp) ................................................................... 105
.
Aiming Adjustment ................................................. 75 . Removal and Installation of High-Mounted Stop
Bulb Replacement ................................................. 76 . Lamp .................................................................... 105
.
TURN SIGNAL AND HAZARD WARNING LAMPS... 77 REMOVAL (WITH REAR SPOILER) ................ 105 .
Component Parts and Harness Connector Location 77 ... INSTALLATION ................................................. 105 .
System Description ................................................ 77 . REMOVAL (WITHOUT REAR SPOILER) ......... 105 .

Revision: 2006 August LT-2 2007 G35 Coupe
INSTALLATION ................................................ 105 . ROOM LAMP TIMER OPERATION ................. 130 .
Removal and Installation of Rear Combination INTERIOR ROOM LAMP BATTERY SAVER A
Lamp (Stop Lamp) ............................................... 105 . CONTROL ........................................................ 131 .
BACK-UP LAMP ................................................... 106 . Schematic ............................................................ 132
.
Wiring Diagram -- BACK/L -- ............................ 106 . Wiring Diagram -- ROOM/L -- ........................... 134 . B
A/T MODELS ................................................... 106 . Terminals and Reference Values for BCM ........... 140 .
M/T MODELS ................................................... 107 . How to Proceed With Trouble Diagnosis ............. 141 .
Bulb Replacement ............................................... 108 . Preliminary Check ............................................... 141 .
Removal and Installation ..................................... 108 . CHECK POWER SUPPLY AND GROUND CIR- C
PARKING, LICENSE PLATE AND TAIL LAMPS .. 109 . CUIT ................................................................. 141
.
Component Parts and Harness Connector Location 109 . CONSULT-II Functions (BCM) ............................. 142 .
System Description ............................................. 109 . CONSULT-II BASIC OPERATION .................... 142 . D
OPERATION BY LIGHTING SWITCH ..............110 . WORK SUPPORT (INT LAMP) ........................ 142 .
COMBINATION SWITCH READING FUNCTION ..110 DATA MONITOR (INT LAMP) .......................... 142 .
EXTERIOR LAMP BATTERY SAVER CONTROL ..110 ACTIVE TEST (INT LAMP) .............................. 143 . E
CAN Communication System Description ............110 . WORK SUPPORT (BATTERY SAVER) ........... 143 .
CAN Communication Unit ....................................110 . DATA MONITOR (BATTERY SAVER) .............. 144 .
Schematic ............................................................ 111
. ACTIVE TEST (BATTERY SAVER) .................. 145 .
Wiring Diagram -- TAIL/L -- ................................112 . Map Lamp Control Does Not Operate ................. 145 . F
Terminals and Reference Values for BCM ...........116 . Ignition Key Hole Illumination Control Does Not
Terminals and Reference Values for IPDM E/R ...116 . Operate ................................................................ 146
.
How to Proceed With Trouble Diagnosis ..............117 . All Step Lamps Does Not Operate ....................... 148 . G
Preliminary Check ................................................117 . All Interior Room Lamps Does Not Operate ........ 149 .
CHECK POWER SUPPLY AND GROUND CIR- Bulb Replacement ............................................... 149 .
CUIT ..................................................................117
. VANITY MIRROR LAMP .................................. 149 . H
CONSULT-II Functions (BCM) .............................118 . MAP LAMP ....................................................... 149 .
CONSULT-II Functions (IPDM E/R) .....................118 . STEP LAMP ..................................................... 150 .
Parking, License Plate, Side Marker and Tail Lamps TRUNK ROOM LAMP ...................................... 150 .
I
Do Not Illuminate ..................................................119. IGNITION KEY HOLE ILLUMINATION ............. 150 .
Parking, License Plate, Side Marker and Tail Lamps Removal and Installation ..................................... 151 .
Do Not Turn OFF (After Approx. 10 Minutes) ...... 124 . MAP LAMP ....................................................... 151 .
Bulb Replacement ............................................... 124 . STEP LAMP ..................................................... 151 . J
FRONT SIDE MARKER LAMP ........................ 124 . TRUNK ROOM LAMP ...................................... 151 .
LICENSE PLATE LAMP ................................... 124 . ILLUMINATION ...................................................... 152 .
PARKING LAMP .............................................. 124 . System Description .............................................. 152 . LT
TAIL LAMP ....................................................... 124. ILLUMINATION OPERATION BY LIGHTING
Removal and Installation ..................................... 125 . SWITCH ........................................................... 152
.
FRONT SIDE MARKER LAMP ........................ 125 . EXTERIOR LAMP BATTERY SAVER CONTROL 154 . L
LICENSE PLATE LAMP ................................... 125 . CAN Communication System Description ........... 154 .
PARKING LAMP .............................................. 125 . CAN Communication Unit .................................... 154 .
TAIL LAMP ....................................................... 125. Schematic ............................................................ 155
.
REAR COMBINATION LAMP ............................... 126 . Wiring Diagram -- ILL -- ..................................... 156 . M
Bulb Replacement ............................................... 126 . Bulb Replacement ............................................... 165 .
Removal and Installation ..................................... 126 . GLOVE BOX LAMP .......................................... 165 .
REMOVAL ........................................................ 126 . UPPER GLOVE BOX LAMP ............................ 165 .
INSTALLATION ................................................ 126 . ASHTRAY ILLUMINATION ............................... 165 .
INTERIOR ROOM LAMP ....................................... 127 . CIGARETTE LIGHTER ILLUMINATION .......... 165 .
Component Parts and Harness Connector Location 127 . BULB SPECIFICATIONS ....................................... 166 .
System Description ............................................. 128 . Headlamp ............................................................ 166
.
POWER SUPPLY AND GROUND ................... 128 . Exterior Lamp ...................................................... 166
.
SWITCH OPERATION ..................................... 129 . Interior Lamp/Illumination .................................... 166 .

Revision: 2006 August LT-3 2007 G35 Coupe
PRECAUTIONS

PRECAUTIONS PFP:00011

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" NKS000FA

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
q Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Battery Service NKS000FB

Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
General Precautions for Service Operations NKS000FC

q Never work with wet hands.
q 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).
q Turn the lighting switch OFF before disconnecting and connect-
ing the connector.
q When turning the xenon headlamp on and while it is illuminated,
never touch the harness, bulb, and socket of the headlamp.
q When checking the headlamp on/off operation, check it on vehi- PKIB7344E
cle and with the power connected to the vehicle-side connector.
q 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.
q 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.
q When the bulb has burned out, wrap it in a thick vinyl bag and
discard. Do not break the bulb.
q 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. EL-3422D

q 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.)
q Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.

Revision: 2006 August LT-4 2007 G35 Coupe
HEADLAMP - XENON TYPE -

HEADLAMP - XENON TYPE - PFP:26010
A
Component Parts and Harness Connector Location NKS002ND

PKIB6095E
LT
System Description NKS002NE

The control of headlamp system operation is dependent upon the position of the lighting switch. When the
lighting switch is placed in the 2ND position, BCM (body control module) receives input signal requesting the L
headlamps (and tail lamps) illuminate. This input signal is communicated to IPDM E/R (intelligent power distri-
bution module engine room) through CAN communication lines. The CPU (central processing unit) located in
the IPDM E/R controls headlamp high relay and headlamp low relay. These relays, when energized, direct
M
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 headlamp bulb comes
out, and a high beam and a low beam are changed.
OUTLINE
Power is supplied at all times
q to ignition relay, located in IPDM E/R
q to headlamp high relay, located in IPDM E/R, and
q to headlamp low relay, located in IPDM E/R, from battery direct,
q through 10A fuse (No. 71, located in IPDM E/R)
q to CPU located in IPDM E/R,
q through 15A fuse (No. 78, located in IPDM E/R)
q to CPU located in IPDM E/R,
q through 50A fusible link (letter F, located in fuse, fusible link and relay box)
q to BCM terminal 55,
q through 10A fuse [No. 18, located in fuse block (J/B)]

Revision: 2006 August LT-5 2007 G35 Coupe
HEADLAMP - XENON TYPE -

q to BCM terminal 42,
q through 10A fuse [No. 19, located in fuse block (J/B)]
q to combination meter terminal 21.
With the ignition switch in the ON or START position, power is supplied
q to ignition relay, located in IPDM E/R, from battery direct,
q through 10A fuse [No. 1, located in fuse block (J/B)]
q to BCM terminal 38,
q through 10A fuse [No. 14, located in fuse block (J/B)]
q to combination meter terminals 22 and 23.
With the ignition switch in the ACC or ON position, power is supplied
q through 10A fuse [No. 6, located in fuse block (J/B)]
q to BCM terminal 11.
Ground is supplied
q to BCM terminal 52
q through grounds M30 and M66,
q to IPDM E/R terminals 38 and 60
q through grounds E17 and E43,
q to combination meter terminals 1, 24 and 25
q through grounds M30 and M66.
HEADLAMP OPERATION
Low Beam Operation
With the lighting switch in 2ND position, the BCM receives input signal requesting headlamps to illuminate.
This input signal is communicated to IPDM E/R across CAN communication lines. The CPU located in the
IPDM E/R controls headlamp low relay coil, which when energized, directs power
q through 15A fuse (No. 76, located in IPDM E/R)
q through IPDM E/R terminal 20
q to front combination lamp RH terminal 3,
q through 15A fuse (No. 86, located in IPDM E/R)
q through IPDM E/R terminal 30
q to front combination lamp LH terminal 3.
Ground is supplied
q to front combination lamp RH and LH terminals 4
q through grounds E17 and E43.
With power and ground supplied, low beam headlamps illuminate.
High Beam Operation/Flash-to-Pass Operation
With the lighting switch in 2ND position and placed in HIGH BEAM or PASSING position, the BCM receives
input signal requesting the headlamp high beams to illuminate. This input signal is communicated to IPDM E/
R through the CAN communication lines. The CPU located in the IPDM E/R controls headlamp high relay and
headlamp low relay, which when energized, directs power
q through 15A fuse (No. 76, located in IPDM E/R)
q through IPDM E/R terminal 20
q to front combination lamp RH terminal 3,
q through 15A fuse (No. 86, located in IPDM E/R)
q through IPDM E/R terminal 30
q to front combination lamp LH terminal 3,
q through 10A fuse (No. 72, located in IPDM E/R)
q through IPDM E/R terminal 27
q to front combination lamp RH terminal 2,
q through 10A fuse (No. 74, located in IPDM E/R)

Revision: 2006 August LT-6 2007 G35 Coupe
HEADLAMP - XENON TYPE -

q through IPDM E/R terminal 28
q to front combination lamp LH terminal 2. A
Ground is supplied
q to front combination lamp RH and LH terminals 8
B
q through grounds E17 and E43.
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 headlamp bulb comes
out, and a high beam and a low beam are changed. C
The high beam indicator illuminates when combination meter receives input signal requesting high beam indi-
cator to illuminate. This is communicated to BCM through the CAN communication lines.
D
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL E
When the lighting switch is in the 2ND position 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, and then the headlamps are turned off. F
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
AUTO LIGHT OPERATION
Refer to LT-51, "System Description" . G
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-188, "VEHICLE
H
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 I
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. J
q The light produced by the headlamps is white color similar to sunlight that is easy to the eyes.
q Light output is nearly double that of halogen headlamps, affording increased area of illumination.
LT
q Counter-reflected 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.
q Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load. L
CAN Communication System Description NKS002NF

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- M
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 Unit NKS002NG

Refer to LAN-47, "CAN System Specification Chart" .

Revision: 2006 August LT-7 2007 G35 Coupe
HEADLAMP - XENON TYPE -

Schematic NKS002NH

TKWM3445E

Revision: 2006 August LT-8 2007 G35 Coupe
HEADLAMP - XENON TYPE -

Wiring Diagram -- H/LAMP -- NKS002NI

TKWM2185E

Revision: 2006 August LT-9 2007 G35 Coupe
HEADLAMP - XENON TYPE -

TKWM2186E

Revision: 2006 August LT-10 2007 G35 Coupe
HEADLAMP - XENON TYPE -

TKWM3446E

Revision: 2006 August LT-11 2007 G35 Coupe
HEADLAMP - XENON TYPE -

TKWM4010E

Revision: 2006 August LT-12 2007 G35 Coupe
HEADLAMP - XENON TYPE -

Terminals and Reference Values for BCM NKS002NJ

A
CAUTION:
q Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.
q Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position. B
Wiper dial position can be confirmed on CONSULT-II. Refer to LT-17, "DATA MONITOR" .

Ter- Measuring condition C
Wire
minal Signal name Ignition Reference value
color Operation or condition
No. switch
OFF Approx. 0 V D

E
Lighting switch HIGH beam (Oper-
ates only HIGH beam switch)
F
Lighting, turn,
PKIB4959J
Combination wiper switch
2 G/R ON Approx. 1.0 V
switch input 5 (Wiper intermit-
tent dial position 4) G

H
Lighting switch 2ND

PKIB4953J
I
Approx. 2.0 V
OFF Approx. 0 V
J

Lighting, turn, Any of the conditions below
Combination wiper switch q Lighting switch 2ND LT
3 G ON
switch input 4 (Wiper intermit-
q Lighting switch PASSING
tent dial position 4)
(Operates only PASSING
switch)
L
PKIB4959J

Approx. 1.0 V
Ignition switch
11 LG ACC -- Battery voltage M
(ACC)

Revision: 2006 August LT-13 2007 G35 Coupe
HEADLAMP - XENON TYPE -

Ter- Measuring condition
Wire
minal Signal name Ignition Reference value
color Operation or condition
No. switch

OFF
(Wiper intermittent dial position 4)

PKIB4960J

Combination Lighting, turn, Approx. 7.2 V
34 PU ON
switch output 3 wiper switch

Any of the conditions below
q Lighting switch 2ND
q Lighting switch HI beam
(Operates only HI beam switch)
PKIB4958J

Approx. 1.2 V

OFF

PKIB4960J
Lighting, turn,
Combination wiper switch Approx. 7.2 V
35 Y/R ON
switch output 2 (Wiper intermit-
tent dial position 4)
Any of the conditions below
q Lighting switch 2ND
q Lighting switch PASSING
(Operates only PASSING
switch)
PKIB4958J

Approx. 1.2 V
Ignition switch
38 W/L ON -- Battery voltage
(ON)
39 L CAN - H -- -- --
40 P CAN - L -- -- --
Battery power
42 GY OFF -- Battery voltage
supply
52 B Ground ON -- Approx. 0 V
Battery power
55 R OFF -- Battery voltage
supply

Revision: 2006 August LT-14 2007 G35 Coupe
HEADLAMP - XENON TYPE -

Terminals and Reference Values for IPDM E/R NKS002NK

A
Measuring condition
Terminal Wire
Signal name Ignition Reference value
No. color Operation or condition
switch
B
Headlamp HIGH&LOW Lighting switch 2ND OFF Approx. 0 V
20 R ON
(RH) position ON Battery voltage
Lighting switch HIGH OFF Approx. 0 V C
27 BR Headlamp high (RH) ON BEAM or PASSING
position ON Battery voltage

Lighting switch HIGH OFF Approx. 0 V D
28 R/Y Headlamp high (LH) ON BEAM or PASSING
position ON Battery voltage

Headlamp HIGH&LOW Lighting switch 2ND OFF Approx. 0 V
30 R/B ON E
(LH) position ON Battery voltage
38 B/R Ground ON -- Approx. 0 V
48 L CAN - H -- -- -- F
49 P CAN - L -- -- --
60 B/R Ground ON -- Approx. 0 V
G
How to Proceed With Trouble Diagnosis NKS002NL

1. Confirm the symptom or customer complaint.
H
2. Understand operation description and function description. Refer to LT-5, "System Description" .
3. Perform the preliminary check. Refer to LT-15, "Preliminary Check" .
4. Check symptom and repair or replace the malfunctioning parts.
I
5. Does headlamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary Check NKS002NM
J
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK LT
Check for blown fuses and fusible link.
Unit Power source Fuse and fusible link No.
L
F
Battery
18
BCM
Ignition switch ON or START position 1 M
Ignition switch ACC or ON position 6
72
74
IPDM E/R Battery
76
86

Refer to LT-9, "Wiring Diagram -- H/LAMP --" .
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" .

Revision: 2006 August LT-15 2007 G35 Coupe
HEADLAMP - XENON TYPE -

2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
(+) Ignition switch position
BCM (-)
Terminal OFF ACC ON
connector
Battery Battery
11 Approx. 0 V
voltage voltage
M1
Battery
38 Approx. 0 V Approx. 0 V
voltage
Ground
Battery Battery Battery
42
voltage voltage voltage
M2
Battery Battery Battery
55
voltage voltage voltage

OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.

PKIA5204E

3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
BCM
Terminal Continuity
connector Ground
M2 52 Yes

OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.

PKIA6256E

CONSULT-II Functions (BCM) NKS002NN

CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
BCM diagnosis part Diagnosis mode Description
WORK SUPPORT Changes the setting for each function.
HEADLAMP DATA MONITOR Displays BCM input data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS BCM performs self-diagnosis of CAN communication.
BCM
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.

CONSULT-II BASIC OPERATION
Refer to GI-37, "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 "BATTERY SAVER SET" on "SELECT WORK ITEM" screen.

Revision: 2006 August LT-16 2007 G35 Coupe
HEADLAMP - XENON TYPE -

4. Touch "START".
5. Touch "CHANGE SET". A
6. The setting will be changed and "CUSTOMIZING COMPLETED" will be displayed.
7. Touch "END".
B
Display Item List
Item Description
C

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