LT-1
LIGHTING SYSTEM
K ELECTRICAL
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LIGHTING SYSTEM
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions for Battery Service ................................ 4
General Precautions for Service Operations ............ 4
HEADLAMP (FOR USA) ............................................ 5
Component Parts and Harness Connector Location ..... 5
System Description .................................................. 5
OUTLINE ............................................................... 5
HEADLAMP OPERATION .................................... 6
COMBINATION SWITCH READING FUNCTION ..... 7
EXTERIOR LAMP BATTERY SAVER CONTROL ..... 7
REMOTE KEYLESS ENTRY SYSTEM OPERA-
TION ...................................................................... 7
VEHICLE SECURITY SYSTEM ............................ 7
XENON HEADLAMP ............................................. 7
CAN Communication System Description ................ 7
CAN Communication Unit ........................................ 7
Schematic ................................................................ 8
Wiring Diagram — H/LAMP — ................................. 9
Terminals and Reference Values for BCM ............. 13
Terminals and Reference Values for IPDM E/R ..... 15
How to Proceed With Trouble Diagnosis ................ 15
Preliminary Check .................................................. 15
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 15
CONSULT-III Function (BCM) ................................ 17
WORK SUPPORT ............................................... 17
DATA MONITOR ................................................. 17
ACTIVE TEST ..................................................... 18
CONSULT-III Function (IPDM E/R) ........................ 18
DATA MONITOR ................................................. 18
ACTIVE TEST ..................................................... 18
Headlamp Does Not Change To High Beam (Both
Sides) ..................................................................... 19
Headlamp Does Not Change To High Beam (One
Side) ....................................................................... 21
High Beam Indicator Lamp Does Not Illuminate .... 22
Headlamp Low Beam Does Not Illuminate (Both Sides) ..................................................................... 22
Headlamp Low Beam Does Not Illuminate (One
Side) ....................................................................... 24
Headlamps Does Not Turn OFF ............................. 26
General Information for Xenon Headlamp Trouble
Diagnosis ................................................................ 26
Caution: .................................................................. 26
Xenon Headlamp Trouble Diagnosis ...................... 27
Aiming Adjustment .................................................. 27
PREPARATION BEFORE ADJUSTING .............. 27
LOW BEAM AND HIGH BEAM ........................... 28
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ............ 28
Bulb Replacement .................................................. 28
HEADLAMP HIGH/LOW BEAM .......................... 28
PARKING LAMP .................................................. 29
FRONT TURN SIGNAL LAMP ............................ 29
FRONT SIDE MARKER LAMP ........................... 29
Removal and Installation ........................................ 29
REMOVAL ........................................................... 29
INSTALLATION ................................................... 29
Disassembly and Assembly .................................... 30
DISASSEMBLY ................................................... 30
ASSEMBLY ......................................................... 31
Servicing to Replace Headlamps When Damaged ... 31
INSTALLATION OF HEADLAMP BRACKET ....... 31
HEADLAMP (FOR CANADA) - DAYTIME LIGHT
SYSTEM - .................................................................. 32
Component Parts and Harness Connector Location ... 32
System Description ................................................. 32
OUTLINE ............................................................. 32
HEADLAMP OPERATION ................................... 33
DAYTIME LIGHT OPERATION ........................... 34
OPERATION ........................................................ 35
COMBINATION SWITCH READING FUNCTION ... 35
EXTERIOR LAMP BATTERY SAVER CONTROL ... 35
INTERLOCKED OPERATION WITH REMOTE
KEYLESS ENTRY SYSTEM ............................... 35
INTERLOCKED OPERATION WITH VEHICLE
SECURITY SYSTEM .......................................... 35
LT-2Revision: 2006 November2007 350Z XENON HEADLAMP ........................................... 35
CAN Communication System Description .............. 36
CAN Communication Unit ....................................... 36
Schematic ............................................................... 37
Wiring Diagram — DTRL — ................................... 38
Terminals and Reference Values for BCM .............. 45
Terminals and Reference Values for IPDM E/R ...... 47
How to Proceed With Trouble Diagnosis ................ 47
Preliminary Check .................................................. 47
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 47
CONSULT-III Function (BCM) ................................. 49
WORK SUPPORT ............................................... 49
DATA MONITOR .................................................. 49
ACTIVE TEST ..................................................... 50
CONSULT-III Function (IPDM E/R) ......................... 50
DATA MONITOR .................................................. 50
ACTIVE TEST ..................................................... 50
Daytime Light Control Does Not Operate ............... 51
Headlamp Does Not Change To High Beam (Both
Sides) ..................................................................... 51
Headlamp Does Not Change To High Beam (One
Side) ....................................................................... 54
High Beam Indicator Lamp Does Not Illuminate ..... 55
Headlamp Low Beam Does Not Illuminate (Both
Sides) ..................................................................... 55
Headlamp Low Beam Does Not Illuminate (One
Side) ....................................................................... 57
Headlamps Does Not Turn OFF ............................. 59
General Information for Xenon Headlamp Trouble
Diagnosis ................................................................ 59
Caution: .................................................................. 59
Xenon Headlamp Trouble Diagnosis ...................... 60
Aiming Adjustment .................................................. 60
PREPARATION BEFORE ADJUSTING .............. 60
LOW BEAM AND HIGH BEAM ........................... 61
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ............ 61
Bulb Replacement .................................................. 61
HEADLAMP HIGH/LOW BEAM .......................... 61
PARKING LAMP .................................................. 62
FRONT TURN SIGNAL LAMP ............................ 62
FRONT SIDE MARKER LAMP ............................ 62
Removal and Installation ........................................ 62
REMOVAL ........................................................... 62
INSTALLATION .................................................... 62
Disassembly and Assembly .................................... 63
DISASSEMBLY ................................................... 63
ASSEMBLY ......................................................... 64
Serving to Replace Headlamps When Damaged ... 64
INSTALLATION OF HEADLAMP BRACKET ....... 64
TURN SIGNAL AND HAZARD WARNING LAMPS ... 65
Component Parts and Harness Connector Location ... 65
System Description ................................................. 65
TURN SIGNAL OPERATION ............................... 65
HAZARD WARNING LAMP OPERATION ........... 66
REMOTE KEYLESS ENTRY SYSTEM OPERA-
TION .................................................................... 67
COMBINATION SWITCH READING FUNCTION ... 67CAN Communication System Description .............. 67
CAN Communication Unit ....................................... 67
Schematic ............................................................... 68
Wiring Diagram — TURN — ................................... 69
COUPE MODELS ................................................ 69
ROADSTER MODELS ......................................... 73
Terminals and Reference Values for BCM .............. 77
How to Proceed With Trouble Diagnosis ................ 78
Preliminary Check ................................................... 79
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................... 79
CONSULT-III Function (BCM) ................................. 80
DATA MONITOR .................................................. 80
ACTIVE TEST ...................................................... 80
Turn Signal Lamp Does Not Operate ...................... 81
Hazard Warning Lamp Does Not Operate But Turn
Signal Lamp Operate .............................................. 82
Turn Signal Indicator Lamp Does Not Operate ....... 83
Bulb Replacement (Front Turn Signal Lamp) .......... 83
Bulb Replacement (Rear Turn Signal Lamp) .......... 83
Removal and Installation of Front Turn Signal Lamp ... 83
Removal and Installation of Rear Turn Signal Lamp ... 83
LIGHTING AND TURN SIGNAL SWITCH ................ 84
Removal and Installation ......................................... 84
REMOVAL ............................................................ 84
INSTALLATION .................................................... 84
HAZARD SWITCH ..................................................... 85
Removal and Installation ......................................... 85
HAZARD SWITCH (A/T MODELS) ...................... 85
HAZARD SWITCH (M/T MODELS) ..................... 85
COMBINATION SWITCH .......................................... 86
Wiring Diagram —COMBSW— .............................. 86
Combination Switch Reading Function ................... 87
Terminals and Reference Values for BCM .............. 87
CONSULT-III Function (BCM) ................................. 91
DATA MONITOR .................................................. 91
Combination Switch Inspection ............................... 92
Removal and Installation ......................................... 94
STOP LAMP .............................................................. 95
Wiring Diagram — STOP/L — ................................ 95
High-Mounted Stop Lamp (Coupe Models) ............. 97
BULB REPLACEMENT, REMOVAL AND
INSTALLATION .................................................... 97
High-Mounted Stop Lamp (Roadster Models) ......... 97
BULB REPLACEMENT, REMOVAL AND
INSTALLATION .................................................... 97
Stop Lamp ............................................................... 97
BULB REPLACEMENT ........................................ 97
REMOVAL AND INSTALLATION ......................... 97
BACK-UP LAMP ....................................................... 98
Wiring Diagram — BACK/L — ................................ 98
COUPE MODELS (A/T) ....................................... 98
COUPE MODELS (M/T) ...................................... 99
ROADSTER MODELS (A/T) ..............................100
ROADSTER MODELS (M/T) .............................101
Bulb Replacement .................................................102
Removal and Installation .......................................102
PARKING, LICENSE PLATE AND TAIL LAMPS ....103
Component Parts and Harness Connector Location .103
HEADLAMP (FOR USA)
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to front combination lamp RH terminal 3,
through 10A fuse [No. 74, located in IPDM E/R]
through IPDM E/R terminal 28
to front combination lamp LH terminal 3.
Ground is supplied
to front combination lamp RH terminals 4, and
to front combination lamp LH terminals 4,
through grounds E17, E43 and B102 (with VDC system, navigation system or telephone)
through grounds E17, E43 and F152 (without VDC system, navigation system and telephone).
With the power and ground supplied, headlamp bulbs illuminate. High beam solenoids move the bulb shades
in the front combination lamps, and the bulb shades change to high beam position.
Unified meter and A/C amp. receives signal from BCM through CAN communication lines, and then combina-
tion meter indicator illuminates high beam.
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-III.
REMOTE KEYLESS ENTRY SYSTEM OPERATION
Refer to BL-59, "REMOTE KEYLESS ENTRY SYSTEM" .
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-125, "VEHICLE
SECURITY (THEFT WARNING) SYSTEM" .
XENON HEADLAMP
Xenon type lamps are used for 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.
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.
Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
CAN Communication System DescriptionNKS004WO
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 UnitNKS004WP
Refer to LAN-48, "CAN System Specification Chart" .
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
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to license plate lamp LH terminal 1
through grounds B5, B6, D105 and T14 (Coupe models)
through grounds B5, B6 and T14 (Roadster models).
With power and ground supplied, the headlamp low, parking, license plate and tail lamps illuminate.
OPERATION
T: “TAIL LAMP” position
Hi: “HIGH BEAM” position
Lo: “LOW BEAM” position
P: “FLASH TO PASS” position
×: Lamp “ON”
–: Lamp “OFF”
*: Once the parking brake is turned OFF after ignition switch ON, parking, license plate, side marker, tail lamps and headlamp low are
turned ON.
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-III.
INTERLOCKED OPERATION WITH REMOTE KEYLESS ENTRY SYSTEM
Refer to BL-59, "REMOTE KEYLESS ENTRY SYSTEM" .
INTERLOCKED OPERATION WITH VEHICLE SECURITY SYSTEM
Refer to BL-125, "VEHICLE SECURITY (THEFT WARNING) SYSTEM" .
XENON HEADLAMP
Xenon type lamps are used for 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.
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.
Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
Engine With engine stopped With engine running
Lighting switch OFF 1ST 2ND OFF 1ST 2ND
OFF Hi P T Hi P Lo Hi P OFF Hi P T Hi P Lo Hi P
Headlamp High
beams–––––×–××––×––×–××
Low
beams– –––––×––×*×*–×*×*–×––
Parking, license
plate, side marker
and tail lamps–––×–×××××*×*–××××××
Illumination – – –×–××××–––××××××
TURN SIGNAL AND HAZARD WARNING LAMPS
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The BCM then supplies power
through BCM terminal 45
to front combination lamp LH terminal 2
to rear combination lamp LH terminal 2,
through BCM terminal 46
to front combination lamp RH terminal 2
to rear combination lamp RH terminal 2.
Ground is supplied
to front combination lamp LH terminal 8, and
to front combination lamp RH terminal 8
through grounds E17, E43 and B102 (with VDC system, navigation system or telephone)
through grounds E17, E43 and F152 (without VDC system, navigation system and telephone),
to rear combination lamp LH terminal 4, and
to rear combination lamp RH terminal 4
through grounds B5, B6, D105 and T14 (Coupe models)
through grounds B5, B6 and T14 (Roadster models).
The BCM also supplies input to unified meter and A/C amp. terminals 1 and 11 through the CAN communica-
tion lines. This input signal is processed by the unified meter control unit in the combination meter through the
unified meter and A/C amp., which in turn supplies ground to the left and right turn signal indicator lamps.
With the power and ground supplied, BCM controls the flashing of hazard warning lamps.
REMOTE KEYLESS ENTRY SYSTEM OPERATION
Refer to BL-59, "REMOTE KEYLESS ENTRY SYSTEM" .
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
CAN Communication System DescriptionNKS004Y5
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 UnitNKS004Y6
Refer to LAN-48, "CAN System Specification Chart" .
INTERIOR ROOM LAMP
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CONSULT-III Function (BCM)NKS004ZQ
CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.
WORK SUPPORT
Display Item List
Reference between “MODE” and “TIME” for “TURN ON/OFF”
DATA MONITOR
Display Item List
NOTE:
This item is displayed, but cannot be monitored.BCM diagnosis part Diagnosis mode Description
INT LAMPWORK 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 driving signal to them.
Item Description CONSULT-III
SET I/L D−UNLCK INTCONThe 30 seconds glowing function interior room lamps and ignition keyhole illumi-
nation can be selected when driver door is released (unlocked). ON/OFF
ROOM LAMP ON TIME SETThe time in order to escalate illumination can be adjusted when interior room
lamps and ignition keyhole illumination is turned on.MODE 1 – 7
ROOM LAMP OFF TIME SETThe time in order to diminish illumination can be adjusted when interior room
lamps and ignition keyhole illumination is turned off.MODE 1 – 7
MODE 1 2 3 4 5 6 7
Time (sec.) 0.5 1 2 3 4 5 0
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from ignition switch signal.
KEY ON SW “ON/OFF” Displays “Key inserted (ON)/key removed (OFF)” status judged from key switch signal.
DOOR SW - DR “ON/OFF”Displays status of driver door as judged from driver door switch signal. (Door is open: ON/Door
is closed: OFF)
DOOR SW - AS “ON/OFF”Displays “Door open (ON)/Door closed (OFF)” status, determined from passenger door switch
signal.
DOOR SW - RR
NOTE“OFF” —
DOOR SW - RL
NOTE“OFF” —
BACK DOOR SW “ON/OFF”
Displays status of back door as judged from back door switch signal. (Coupe models)
Displays status of rear trunk hood as judged from trunk lamp switch signal. (Roadster mod-
els)
KEY CYL LK - SW “ON/OFF” Displays “Door locked (ON) status, determined from key cylinder lock switch in driver door.
KEY CYL UN - SW “ON/OFF” Displays “Door unlocked (OFF) status, determined from key cylinder lock switch in driver door.
CDL LOCK SW “ON/OFF”Displays “Door locked (ON)/Door unlocked (OFF) status, determined from locking detection
switch in driver door.
CDL UNLOCK SW “ON/OFF”Displays “Door unlocked (OFF)” status, determined from locking detection switch in passenger
door.
KEYLESS LOCK “ON/OFF” Displays “Locked (ON)/Other (OFF)” status, determined from lock signal.
KEYLESS UNLOCK “ON/OFF” Displays “Unlocked (ON)/Other (OFF)” status, determined from unlock signal.