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LIGHTING SYSTEM

K ELECTRICAL

SECTION
LIGHTING SYSTEM
LT B

E
CONTENTS
PRECAUTIONS ......................................................... 5 . Side) ...................................................................... 25
. F
Precautions for Supplemental Restraint System High Beam Indicator Lamp Does Not Illuminate .... 27 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Headlamp Low Beam Does Not Illuminate (Both
SIONER" ................................................................. 5
. Sides) .................................................................... 27
. G
Precautions for Battery Service ............................... 5 . Headlamp Low Beam Does Not Illuminate (One
General Precautions for Service Operations ........... 5 . Side) ...................................................................... 29
.
Wiring Diagrams and Trouble Diagnosis ................. 6 . Headlamps Does Not Turn OFF ............................ 30 .
H
HEADLAMP (FOR USA) ........................................... 7 . CAUTION: ............................................................. 32.
Component Parts and Harness Connector Location 7 ..... Xenon Headlamp Trouble Diagnosis ..................... 32 .
System Description ................................................. 7 . Aiming Adjustment ................................................. 33 .
OUTLINE .............................................................. 7
. PREPARATION BEFORE ADJUSTING ............. 33 . I
HEADLAMP OPERATION ................................... 8 . LOW BEAM AND HIGH BEAM .......................... 33 .
COMBINATION SWITCH READING FUNCTION 9 ..... ADJUSTMENT USING AN ADJUSTMENT
EXTERIOR LAMP BATTERY SAVER CONTROL 9 ..... SCREEN (LIGHT/DARK BORDERLINE) ........... 34 . J
AUTO LIGHT OPERATION .................................. 9 . Bulb Replacement ................................................. 34 .
VEHICLE SECURITY SYSTEM ........................... 9 . HEADLAMP (UPPER) LOW BEAM .................... 34 .
XENON HEADLAMP ............................................ 9 . HEADLAMP (LOWER) HIGH BEAM/FOG LAMP 34 ...
LT
CAN Communication System Description ............... 9 . PARKING LAMP (CLEARANCE LAMP) ............. 35 .
CAN Communication Unit ....................................... 9 . FRONT TURN SIGNAL AND PARKING LAMP ... 35
Schematic ............................................................. 10
. Removal and Installation ....................................... 35 .
Wiring Diagram -- H/LAMP -- ...............................11 . REMOVAL .......................................................... 35 . L
Terminals and Reference Values for BCM ............ 15 . INSTALLATION .................................................. 35 .
Terminals and Reference Values for IPDM E/R .... 16 . Disassembly .......................................................... 36.
How to Proceed With Trouble Diagnosis ............... 16 . Assembly ............................................................... 36
. M
Preliminary Check ................................................. 17 . Servicing to Replace Headlamps When Damaged 37 ...
CHECK POWER SUPPLY AND GROUND CIR- REMOVAL AND INSTALLATION ....................... 37 .
CUIT ................................................................... 17
. HEADLAMP (FOR CANADA) - DAYTIME LIGHT
CONSULT-II Functions (BCM) .............................. 18 . SYSTEM - ................................................................. 38
.
CONSULT-II BASIC OPERATION ...................... 18 . Component Parts and Harness Connector Location 38 ...
WORK SUPPORT .............................................. 19 . System Description ................................................ 38 .
DATA MONITOR ................................................ 19 . HEADLAMP OPERATION .................................. 39 .
ACTIVE TEST .................................................... 20 . COMBINATION SWITCH READING FUNCTION 40 ...
CONSULT-II Functions (IPDM E/R) ...................... 21 . EXTERIOR LAMP BATTERY SAVER CONTROL 40 ...
CONSULT-II OPERATION ................................. 21 . AUTO LIGHT OPERATION ................................ 40 .
SELF-DIAGNOSTIC RESULTS ......................... 22 . DAYTIME LIGHT OPERATION .......................... 41 .
DATA MONITOR ................................................ 22 . OPERATION ....................................................... 41 .
ACTIVE TEST .................................................... 23 . XENON HEADLAMP .......................................... 42 .
Headlamp High Beam Does Not Illuminate (Both CAN Communication System Description ............. 42 .
Sides) .................................................................... 23
. CAN Communication Unit ...................................... 42 .
Headlamp High Beam Does Not Illuminate (One Schematic .............................................................. 43
.

LT-1
Wiring Diagram -- DTRL -- .................................. 44 . ACTIVE TEST .....................................................83 .
Terminals and Reference Values for Daytime Light CONSULT-II Functions (IPDM E/R) .......................84 .
Control Unit ............................................................ 50
. CONSULT-II OPERATION ..................................84 .
Terminals and Reference Values for BCM ............. 51 . SELF-DIAGNOSTIC RESULTS ..........................85 .
Terminals and Reference Values for IPDM E/R ..... 52 . DATA MONITOR .................................................85 .
How to Proceed With Trouble Diagnosis ............... 52 . ACTIVE TEST .....................................................85 .
Preliminary Check ................................................. 53 . Trouble Diagnosis Chart by Symptom ...................86 .
CHECK POWER SUPPLY AND GROUND CIR- Lighting Switch Inspection .....................................86 .
CUIT ................................................................... 53
. Optical Sensor System Inspection .........................87 .
CONSULT-II Functions (BCM) ............................... 54 . Removal and Installation for Optical Sensor ..........88 .
CONSULT-II BASIC OPERATION ...................... 54 . REMOVAL ...........................................................88 .
WORK SUPPORT .............................................. 55 . INSTALLATION ...................................................88 .
DATA MONITOR ................................................. 55 . FRONT FOG LAMP ..................................................89 .
ACTIVE TEST .................................................... 56 . Component Parts and Harness Connector Location ...89
CONSULT-II Functions (IPDM E/R) ....................... 57 . System Description ................................................89 .
CONSULT-II OPERATION .................................. 57 . OUTLINE ............................................................89.
SELF-DIAGNOSTIC RESULTS .......................... 58 . COMBINATION SWITCH READING FUNCTION ...91
DATA MONITOR ................................................. 58 . EXTERIOR LAMP BATTERY SAVER CONTROL ...91
ACTIVE TEST .................................................... 58 . CAN Communication System Description .............91 .
Daytime Light Control Does Not Operate Properly 59 ... CAN Communication Unit ......................................91 .
Headlamp High Beam Does Not Illuminate (Both Wiring Diagram -- F/FOG -- .................................92 .
Sides) .................................................................... 61
. FOR USA ............................................................92.
RH High Beam Does Not Illuminate But RH Low FOR CANADA ....................................................94 .
Beam Illuminates ................................................... 63 . Terminals and Reference Values for BCM .............96 .
LH High Beam Does Not Illuminate But LH Low Terminals and Reference Values for IPDM E/R .....97 .
Beam Illuminates ................................................... 65 . How to Proceed With Trouble Diagnosis ...............97 .
Headlamp Low Beam Does Not Illuminate (Both Preliminary Check ..................................................97 .
Sides) .................................................................... 67
. CHECK POWER SUPPLY AND GROUND CIR-
RH Low Beam Does Not Illuminate But RH High CUIT ....................................................................97
.
Beam Illuminates ................................................... 69 . CONSULT-II Functions ..........................................98 .
LH Low Beam Does Not Illuminate But LH High Front Fog lamps Does Not Illuminate (Both Sides)
Beam Illuminates ................................................... 70 . (FOR USA) .............................................................99
.
Aiming Adjustment ................................................. 70 . Front Fog Lamp Does Not Illuminate (One Side)
Bulb Replacement ................................................. 70 . (FOR USA) ........................................................... 101
.
Removal and Installation ....................................... 70 . Front Fog lamps Does Not Illuminate (Both Sides)
Disassembly and Assembly ................................... 70 . (For CANADA) ..................................................... 102 .
AUTO LIGHT SYSTEM ............................................ 71 . LH Front Fog Lamp Does Not Illuminate (FOR CAN-
Component Parts and Harness Connector Location 71 ... ADA) .................................................................... 103
.
System Description ................................................ 71 . RH Front Fog Lamp Does Not Illuminate (FOR CAN-
OUTLINE ............................................................ 71
. ADA) .................................................................... 105
.
COMBINATION SWITCH READING FUNCTION 72 ... Bulb Replacement ................................................ 106 .
EXTERIOR LAMP BATTERY SAVER CONTROL 72 ... TURN SIGNAL AND HAZARD WARNING LAMPS.107
DELAY TIMER FUNCTION ................................ 72 . Component Parts and Harness Connector Location .107
CAN Communication System Description ............. 72 . System Description .............................................. 107 .
CAN Communication Unit ...................................... 72 . TURN SIGNAL OPERATION ............................ 107 .
Major Components and Functions ......................... 72 . HAZARD LAMP OPERATION .......................... 108 .
Schematic .............................................................. 73
. REMOTE KEYLESS ENTRY SYSTEM OPERA-
Wiring Diagram -- AUTO/L -- ............................... 74 . TION ................................................................. 108
.
Terminals and Reference Values for BCM ............. 77 . COMBINATION SWITCH READING FUNCTION .109
Terminals and Reference Values for IPDM E/R ..... 78 . CAN Communication System Description ........... 109 .
How to Proceed With Trouble Diagnosis ............... 79 . CAN Communication Unit .................................... 109 .
Preliminary Check ................................................. 79 . Schematic ............................................................ 110
.
SETTING CHANGE FUNCTIONS ...................... 79 . Wiring Diagram -- TURN -- ................................ 111 .
CHECK POWER SUPPLY AND GROUND CIR- Terminals and Reference Value for BCM ............. 114 .
CUIT ................................................................... 79
. How to Proceed With Trouble Diagnosis ............. 115 .
CONSULT-II Functions (BCM) ............................... 81 . Preliminary Check ................................................ 116 .
CONSULT-II BASIC OPERATION ...................... 81 . CHECK POWER SUPPLY AND GROUND CIR-
WORK SUPPORT .............................................. 82 . CUIT .................................................................. 116
.
DATA MONITOR ................................................. 82 . CONSULT-II Functions ........................................ 117 .

LT-2
CONSULT-II BASIC OPERATION .....................117 . Schematic ............................................................ 140
.
DATA MONITOR ...............................................118 . Wiring Diagram -- TAIL/L -- ............................... 141 . A
ACTIVE TEST ...................................................118 . Terminals and Reference Value for BCM ............ 145 .
Turn Signal Lamp Does Not Operate ...................119 . Terminals and Reference Values for IPDM E/R ... 146 .
Hazard Warning Lamp Does Not Operate But Turn How to Proceed With Trouble Diagnosis ............. 146 . B
Signal Lamp Operates ........................................ 120 . Preliminary Check ............................................... 146 .
Turn Signal Indicator Lamp Does Not Operate ... 121 . CHECK POWER SUPPLY AND GROUND CIR-
Bulb Replacement (Front Turn Signal Lamp) ...... 121 . CUIT ................................................................. 146
.
Bulb Replacement (Rear Turn Signal Lamp) ...... 121 . CONSULT-II Functions ........................................ 147 . C
Removal and Installation of Front Turn Signal Lamp 122 . Parking, License Plate and Tail Lamps Do Not Illu-
Removal and Installation of Rear Turn Signal Lamp 122 . minate .................................................................. 148
.
LIGHTING AND TURN SIGNAL SWITCH ............. 123 . Parking, License Plate and Tail Lamps Do Not Turn D
Removal and Installation ..................................... 123 . OFF (After Approx. 10 Minutes) .......................... 153 .
REMOVAL ........................................................ 123 . Bulb Replacement ............................................... 153 .
INSTALLATION ................................................ 123 . FRONT SIDE MARKER LAMP ........................ 153 . E
HAZARD SWITCH ................................................. 124 . LICENSE PLATE LAMP ................................... 153 .
Removal and Installation (M/T) ........................... 124 . FRONT TURN SIGNAL (PARKING) LAMP ...... 153 .
REMOVAL ........................................................ 124 . TAIL LAMP ....................................................... 153 .
INSTALLATION ................................................ 124 . Removal and Installation ..................................... 153 . F
Removal and Installation (A/T) ............................ 124 . FRONT SIDE MARKER LAMP ........................ 153 .
REMOVAL ........................................................ 124 . LICENSE PLATE LAMP ................................... 154 .
INSTALLATION ................................................ 124 . FRONT TURN SIGNAL (PARKING) LAMP ...... 154 . G
COMBINATION SWITCH ....................................... 125 . TAIL LAMP ....................................................... 154 .
Wiring Diagram -- COMBSW -- ......................... 125 . REAR COMBINATION LAMP ................................ 155 .
Combination Switch Reading Function ............... 126 . Bulb Replacement ............................................... 155 . H
CONSULT-II Function ......................................... 126 . REAR FENDER SIDE (REAR TURN SIGNAL
CONSULT-II BASIC OPERATION .................... 126 . LAMP BULB) .................................................... 155 .
DATA MONITOR .............................................. 127 . Removal and Installation ..................................... 155 .
I
Combination Switch Inspection ........................... 128 . REMOVAL ........................................................ 155 .
Removal and Installation ..................................... 130 . INSTALLATION ................................................ 155 .
STOP LAMP .......................................................... 131 . VANITY MIRROR LAMP ........................................ 156 .
Wiring Diagram -- STOP/L -- ............................. 131 . Bulb Replacement ............................................... 156 . J
Bulb Replacement of High-mounted Stop Lamp . 133 MAP LAMP ............................................................ 157 .
WITH REAR SPOILER .................................... 133 . Bulb Replacement of Map Lamp ......................... 157 .
WITHOUT REAR SPOILER ............................. 133 . Removal and Installation of Map Lamp ............... 157 . LT
Bulb Replacement of Rear Combination Lamp (Stop REMOVAL ........................................................ 157 .
Lamp) .................................................................. 133
. INSTALLATION ................................................ 157 .
Removal and Installation of High-mounted Stop TRUNK ROOM LAMP ............................................ 158 . L
Lamp ................................................................... 133
. Bulb Replacement, Removal and Installation of
REMOVAL (WITH REAR SPOILER) ................ 133 . Trunk Room Lamp ............................................... 158 .
INSTALLATION ................................................ 133 . IGNITION KEY HOLE ILLUMINATION .................. 159 .
REMOVAL (WITHOUT REAR SPOILER) ........ 133 . Removal and Installation ..................................... 159 . M
INSTALLATION ................................................ 133 . REMOVAL ........................................................ 159 .
Removal and Installation of Rear Combination INSTALLATION ................................................ 159 .
Lamp (Stop Lamp) ............................................... 133 . GLOVE BOX LAMP ............................................... 160 .
BACK-UP LAMP ................................................... 134 . Removal and Installation ..................................... 160 .
Wiring Diagram -- BACK/L -- ............................ 134 . REMOVAL ........................................................ 160 .
A/T MODELS ................................................... 134 . INSTALLATION ................................................ 160 .
M/T MODELS ................................................... 135 . ASHTRAY ILLUMINATION .................................... 161 .
Bulb Replacement ............................................... 136 . Bulb Replacement, Removal and Installation (M/T) 161 .
Removal and Installation ..................................... 136 . Bulb Replacement, Removal and Installation (A/T) 161 .
PARKING, LICENSE PLATE AND TAIL LAMPS .. 137 . CIGARETTE LIGHTER ILLUMINATION ................ 162 .
Component Parts and Harness Connector Location 137 . Removal and Installation ..................................... 162 .
System Description ............................................. 137 . INTERIOR ROOM LAMP ....................................... 163 .
OPERATION BY LIGHTING SWITCH ............. 138 . Component Parts and Harness Connector Location 163 .
COMBINATION SWITCH READING FUNCTION 138 . System Description .............................................. 163 .
EXTERIOR LAMP BATTERY SAVER CONTROL 139 . POWER SUPPLY AND GROUND ................... 163 .
CAN Communication System Description ........... 139 . SWITCH OPERATION ..................................... 164 .
CAN Communication Unit ................................... 139 . ROOM LAMP TIMER OPERATION ................. 164 .

LT-3
INTERIOR LAMP BATTERY SAVER CONTROL 165 . All Interior Room Lamps Do Not Operate ............ 180 .
Schematic ............................................................ 166
. Removal and Installation ...................................... 181 .
Wiring Diagram -- ROOM/L -- ............................ 167 . MAP LAMP ....................................................... 181
.
Terminals and Reference Values for BCM ........... 172 . STEP LAMP ...................................................... 181
.
How to Proceed With Trouble Diagnosis ............. 172 . ILLUMINATION ....................................................... 182
.
Preliminary Check ............................................... 173 . System Description .............................................. 182.
CHECK FOR POWER SUPPLY AND GROUND ILLUMINATION OPERATION BY LIGHTING
CIRCUIT ........................................................... 173
. SWITCH ............................................................ 182
.
CONSULT-II Functions ........................................ 174 . EXTERIOR LAMP BATTERY SAVER CONTROL .183
CONSULT-II BASIC OPERATION .................... 174 . CAN Communication System Description ........... 183 .
WORK SUPPORT ............................................ 175 . CAN Communication Unit .................................... 183 .
DATA MONITOR ............................................... 175 . Schematic ............................................................ 184
.
ACTIVE TEST .................................................. 176 . Wiring Diagram -- ILL -- ..................................... 185 .
Map Lamp Control Does Not Operate ................. 176 . Removal and Installation ...................................... 193 .
Ignition Key Hole Illumination Control Does Not GLOVE BOX LAMP .......................................... 193 .
Operate ................................................................ 178
. BULB SPECIFICATIONS ....................................... 194 .
All Step Lamps Do Not Operate ........................... 179 . Headlamp ............................................................. 194
.
Exterior Lamp ....................................................... 194
.
Interior Lamp/Illumination ..................................... 194 .

LT-4
PRECAUTIONS

PRECAUTIONS PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AKS00AIG

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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 C
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: D
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. E
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. F
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.
G
Precautions for Battery Service AKS00B6E

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 H
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
I
General Precautions for Service Operations AKS00AII

q Never work with wet hands.
q Xenon headlamp includes high voltage generating part. Be sure J
to disconnect battery negative cable (negative terminal) or
power fuse before removing, installing, or touching the xenon
headlamp (including lamp bulb).
LT
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,
L
never touch the harness, bulb, and socket of the headlamp.
q When checking the headlamp on/off operation, check it on vehi- PKIA0183E
cle and with the power connected to the vehicle-side connector.
M
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.

LT-5
PRECAUTIONS

Wiring Diagrams and Trouble Diagnosis AKS00AIJ

When you read wiring diagrams, refer to the following:
q Refer to GI-15, "How to Read Wiring Diagrams" in GI section.
q Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution in PG section.
When you perform trouble diagnosis, refer to the following:
q Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section.
q Refer to GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section.

LT-6
HEADLAMP (FOR USA)

HEADLAMP (FOR USA) PFP:26010
A
Component Parts and Harness Connector Location AKS00AC6

PKIA4878E
LT
System Description AKS00AC7

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 L
signal requesting the headlamps (and tail lamps) illuminate. This input signal is communicated to the IPDM E/
R (intelligent power distribution module engine room) across the CAN communication lines. The CPU (central
processing unit) of the IPDM E/R (intelligent power distribution module engine room) controls the headlamp
M
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
q to headlamp high relay, [located in IPDM E/R (intelligent power distribution module engine room)],
q to headlamp low relay, [located in IPDM E/R (intelligent power distribution module engine room)], and
q to ignition relay, [located in IPDM E/R (intelligent power distribution module engine room)]
q through 10A fuse [No. 71 located in IPDM E/R (intelligent power distribution module engine room)]
q to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine room)]
q through 15A fuse [No. 78 located in IPDM E/R (intelligent power distribution module engine room)]
q to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine room)]
q through 50A fusible link (letter F, located in fuse and fusible link block)
q to BCM (body control module) terminal 55

LT-7
HEADLAMP (FOR USA)

q through 10A fuse [No. 18 located in fuse block (J/B)]
q to BCM (body control module) terminal 42
q through 10A fuse [No. 19, located in fuse block (J/B)]
q to combination meter terminal 43.
With the ignition switch in the ON or START position, power is supplied
q to ignition relay, [located in IPDM E/R (intelligent power distribution module engine room)]
q through 10A fuse [No. 1, located in fuse block (J/B)]
q to BCM (body control module) terminal 38
q through 10A fuse [No. 14, located in fuse block (J/B)]
q to combination meter terminals 41 and 42.
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 (body control module) terminal 11.
Ground is supplied
q to BCM (body control module) terminal 52
q through grounds M30 and M66
q to IPDM E/R (intelligent power distribution module engine room) terminals 38 and 60
q through grounds E17 and E43
q to combination meter terminals 45 and 46
q through grounds M30 and M66.
HEADLAMP OPERATION
Low Beam Operation
With the lighting switch in 2ND position, the BCM receives input signal requesting the headlamps to illuminate.
This input signal is communicated to the IPDM E/R across the CAN communication lines. The CPU in the
IPDM E/R controls the headlamp low relay coil, which when energized, directs power
q to 15A fuse [No. 76, located in IPDM E/R]
q through IPDM E/R terminal 20
q to headlamp RH terminal 3, and
q to 15A fuse [No. 86, located in IPDM E/R]
q through IPDM E/R terminal 30
q to headlamp LH terminal 3.
Ground is supplied
q to headlamp RH terminal 4
q through grounds E17 and E43
q to headlamp LH terminal 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 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 across
the CAN communication lines. The CPU in the IPDM E/R controls the headlamp high relay coil and low relay
coil, which when energized, directs power
q to 15A fuse [No. 76, located in IPDM E/R]
q through IPDM E/R terminal 20
q to headlamp RH terminal 3, and
q to 15A fuse [No. 86, located in IPDM E/R]
q through IPDM E/R terminal 30
q to headlamp LH terminal 3
q to 10A fuse [No. 72, located in IPDM E/R]

LT-8
HEADLAMP (FOR USA)

q through IPDM E/R terminal 27
q to headlamp RH terminal 2, and A
q to 10A fuse [No. 74, located in IPDM E/R]
q through IPDM E/R terminal 28
B
q to headlamp LH terminal 2.
Ground is supplied
q to headlamp RH terminals 4 and 8 C
q through grounds E17 and E43
q to headlamp LH terminals 4 and 8
q through grounds E17 and E43. D
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. E
The unified meter and A/C amp that received the high beam request signal by BCM across the CAN commu-
nication makes a high beam indicator lamp turn on in combination meter.
COMBINATION SWITCH READING FUNCTION F
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
G
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. H
AUTO LIGHT OPERATION
Refer to LT-71, "System Description" in "AUTO LIGHT SYSTEM".
I
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-93, "VEHICLE
SECURITY (THEFT WARNING) SYSTEM" . J
XENON HEADLAMP
Xenon type headlamp is adopted 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 LT
of xenon (an inert gas) and certain other metal halides. In addition to added lighting power, electronic control
of the power supply gives the headlamps stable quality and tone color.
Following are some of the many advantages of the xenon type headlamp. L
q The light produced by the headlamps is a white color comparable to sunlight that is easy on the eyes.
q Light output is nearly double that of halogen headlamps, affording increased area of illumination.
q The light features a high relative spectral distribution at wavelengths to which the human eye is most sen- M
sitive. This means that even in the rain, more light is reflected back from the road surface toward the vehi-
cle, for added visibility.
q Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
CAN Communication System Description AKS00AC8

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 Unit AKS00AC9

Refer to LAN-4, "CAN Communication Unit" .

LT-9
HEADLAMP (FOR USA)

Schematic AKS00ACA

TKWM0847E

LT-10
HEADLAMP (FOR USA)

Wiring Diagram -- H/LAMP -- AKS00ACB

TKWM0848E

LT-11
HEADLAMP (FOR USA)

TKWM0849E

LT-12
HEADLAMP (FOR USA)

TKWM0850E

LT-13
HEADLAMP (FOR USA)

TKWM0851E

LT-14
HEADLAMP (FOR USA)

Terminals and Reference Values for BCM AKS00ACC

A
Measuring condition
Terminal Wire
Signal name Ignition Reference value
No. color Operation or condition
switch B

C
Lighting, turn, wiper OFF
2 G/R Combination switch input 5 ON
Wiper dial position 4

D
SKIA5291E

E
Lighting, turn, wiper OFF
3 G Combination switch input 4 ON
Wiper dial position 4
F
SKIA5292E

Lighting, turn, wiper OFF
4 W/L Combination switch input 3 ON
Wiper dial position 4
H

SKIA5291E

5 W/G Combination switch input 2 I

Lighting, turn, wiper OFF
ON J
6 W/R Combination switch input 1 Wiper dial position 4

SKIA5292E
LT
11 LG Ignition switch (ACC) ACC -- Battery voltage

L
Lighting, turn, wiper OFF
32 GY Combination switch output 5 ON
Wiper dial position 4
M
SKIA5291E

Lighting, turn, wiper OFF
33 L Combination switch output 4 ON
Wiper dial position 4

SKIA5292E

Lighting, turn, wiper OFF
34 PU Combination switch output 3 ON
Wiper dial position 4

SKIA5291E

LT-15
HEADLAMP (FOR USA)

Measuring condition
Terminal Wire
Signal name Ignition Reference value
No. color Operation or condition
switch
35 Y/R Combination switch output 2

Lighting, turn, wiper OFF
ON
36 Y Combination switch output 1 Wiper dial position 4

SKIA5292E

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

Terminals and Reference Values for IPDM E/R AKS00ACD

Measuring condition
Terminal Wire
Signal name Ignition Reference value
No. color Operation or condition
switch

Lighting switch OFF Approx. 0V
20 R Headlamp low (RH) ON
2ND position ON Battery voltage
Lighting switch OFF Approx. 0V
27 BR Headlamp high (RH) ON HIGH or PASS
position ON Battery voltage

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

Lighting switch OFF Approx. 0V
30 R/B Headlamp low (LH) ON
2ND position ON Battery voltage
38 B Ground ON -- Approx. 0V
48 L CAN- H -- -- --
49 R CAN- L -- -- --
60 B Ground ON -- Approx. 0V

How to Proceed With Trouble Diagnosis AKS00ACE

1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-7, "System Description" .
3. Perform the preliminary check. Refer to LT-17, "Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the headlamp operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. INSPECTION END

LT-16
HEADLAMP (FOR USA)

Preliminary Check AKS00ACF

CHECK POWER SUPPLY AND GROUND CIRCUIT A

1. CHECK FUSES
q Check fuses for blown-out. B
Unit Power source Fuse and fusible link No.
F
Battery C
18
BCM
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6 D
72
74
IPDM E/R Battery E
76
86
Refer to LT-11, "Wiring Diagram -- H/LAMP --" . F
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG- G
4, "POWER SUPPLY ROUTING CIRCUIT" .

2. CHECK POWER SUPPLY CIRCUIT H
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
I
3. Check voltage between BCM harness connector and ground.
Terminals Ignition switch position
(+) J
Terminal (-) OFF ACC ON
Connector
(Wire color)
Battery Battery
LT
11 (LG) 0V

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