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LIGHTING SYSTEM

K ELECTRICAL

SECTION
LIGHTING SYSTEM
LT B

E
CONTENTS
PRECAUTIONS ......................................................... 5 . Headlamp Low Beam Does Not Illuminate (One F
Precautions for Supplemental Restraint System Side) ...................................................................... 30
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Headlamps Do Not Turn OFF ................................ 31 .
SIONER" ................................................................. 5
. CAUTION: ............................................................. 32. G
General Precautions for Service Operations ........... 5 . Xenon Headlamp Trouble Diagnosis ..................... 32 .
Wiring Diagrams and Trouble Diagnosis ................. 6 . Aiming Adjustment ................................................. 33 .
HEADLAMP (FOR USA) ........................................... 7 . PREPARATION BEFORE ADJUSTING ............. 33 .
H
Component Parts and Harness Connector Location 7 ..... LOW BEAM AND HIGH BEAM .......................... 33 .
System Description ................................................. 7 . ADJUSTMENT USING AN ADJUSTMENT
OUTLINE .............................................................. 7
. SCREEN (LIGHT/DARK BORDERLINE) ........... 34 .
COMBINATION SWITCH READING FUNCTION 9 ..... Bulb Replacement ................................................. 34 . I
EXTERIOR LAMP BATTERY SAVER CONTROL 9 ..... HEADLAMP (UPPER) LOW BEAM (XENON) ... 34
AUTO LIGHT OPERATION (IF EPUIPPED) ........ 9 . HEADLAMP (UPPER) LOW BEAM (HALOGEN) 34 ...
VEHICLE SECURITY SYSTEM ........................... 9 . HEADLAMP (LOWER) HIGH BEAM/FOG LAMP 35 ... J
XENON HEADLAMP ............................................ 9 . PARKING LAMPS (CLEARANCE LAMPS) ........ 35 .
CAN Communication System Description ............. 10 . FRONT TURN SIGNAL LAMP ........................... 35 .
CAN Communication Unit ..................................... 10 . Removal and Installation ....................................... 35 .
LT
Schematic ..............................................................11
. REMOVAL .......................................................... 35 .
Wiring Diagram -- H/LAMP -- .............................. 12 . INSTALLATION .................................................. 36 .
Terminals and Reference Values for BCM ............ 16 . Disassembly .......................................................... 36.
Terminals and Reference Values for IPDM E/R .... 17 . Assembly ............................................................... 37
. L
How to Proceed With Trouble Diagnosis ............... 17 . Servicing to Replace Headlamps When Damaged 37 ...
Preliminary Check ................................................. 18 . REMOVAL AND INSTALLATION ....................... 37 .
CHECK POWER SUPPLY AND GROUND CIR- HEADLAMP (FOR CANADA) - DAYTIME LIGHT M
CUIT ................................................................... 18
. SYSTEM - ................................................................. 38
.
CONSULT-II Functions (BCM) .............................. 19 . Component Parts and Harness Connector Location 38 ...
CONSULT-II BASIC OPERATION ...................... 19 . System Description ................................................ 38 .
WORK SUPPORT .............................................. 20 . HEADLAMP OPERATION .................................. 39 .
DATA MONITOR ................................................ 20 . COMBINATION SWITCH READING FUNCTION 40 ...
ACTIVE TEST .................................................... 21 . EXTERIOR LAMP BATTERY SAVER CONTROL 40 ...
CONSULT-II Functions (IPDM E/R) ...................... 22 . AUTO LIGHT OPERATION (IF EPUIPPED) ...... 40 .
CONSULT-II OPERATION ................................. 22 . DAYTIME LIGHT OPERATION .......................... 41 .
DATA MONITOR ................................................ 23 . OPERATION ....................................................... 41 .
ACTIVE TEST .................................................... 23 . XENON HEADLAMP .......................................... 41 .
SELF-DIAGNOSTIC RESULTS ......................... 23 . CAN Communication System Description ............. 42 .
Headlamp HI Does Not Illuminate (Both Sides) .... 24 . CAN Communication Unit ...................................... 42 .
Headlamp HI Does Not Illuminate (One Side) ...... 26 . Schematic .............................................................. 43
.
High Beam Indicator Lamp Does Not Illuminate ... 27 Wiring Diagram -- DTRL -- .................................. 44 .
Headlamp Low Beam Does Not Illuminate (Both Terminals and Reference Value for Daytime Light
Sides) .................................................................... 27
. Control Unit ............................................................ 50
.

LT-1
Terminals and Reference Values for BCM ............. 51 . Lighting Switch Inspection .....................................86 .
Terminals and Reference Values for IPDM E/R ..... 52 . Optical sensor System Inspection ..........................87 .
How to Proceed With Trouble Diagnosis ............... 52 . Removal and Installation for Optical Sensor ..........88 .
Preliminary Check ................................................. 53 . REMOVAL ...........................................................88 .
CHECK POWER SUPPLY AND GROUND CIR- INSTALLATION ...................................................88 .
CUIT ................................................................... 53
. FRONT FOG LAMP ..................................................89 .
CONSULT-II Functions (BCM) ............................... 54 . Component Parts and Harness Connector Location ...89
CONSULT-II BASIC OPERATION ...................... 54 . System Description ................................................89 .
WORK SUPPORT .............................................. 55 . OUTLINE ............................................................89.
DATA MONITOR ................................................. 55 . COMBINATION SWITCH READING FUNCTION ...90
ACTIVE TEST .................................................... 56 . EXTERIOR LAMP BATTERY SAVER CONTROL ...91
CONSULT-II Functions (IPDM E/R) ....................... 57 . CAN Communication System Description .............91 .
CONSULT-II OPERATION .................................. 57 . CAN Communication Unit ......................................91 .
DATA MONITOR ................................................. 58 . Wiring Diagram -- F/FOG -- .................................92 .
ACTIVE TEST .................................................... 58 . Terminals and Reference Values for BCM .............96 .
SELF-DIAGNOSTIC RESULTS .......................... 58 . Terminals and Reference Values for IPDM E/R .....97 .
Daytime Light Control Does Not Operate Properly 59 ... How to Proceed With Trouble Diagnosis ...............97 .
Headlamp HI Does Not Illuminate (Both Sides) ..... 61 . Preliminary Check ..................................................97 .
RH HI Does Not Illuminate But RH LO Illuminates... 63 CHECK POWER SUPPLY AND GROUND CIR-
LH HI Does Not Illuminate But LH LO Illuminates... 65 CUIT ....................................................................97
.
Headlamp Low Beam Does Not Illuminate (Both CONSULT-II Functions ..........................................98 .
Sides) .................................................................... 67
. Front Fog lamps Does Not Illuminate (Both Sides)
RH LO Does Not Illuminate But RH HI Illuminates... 69 (FOR USA) .............................................................99
.
LH LO Does Not Illuminate But LH HI Illuminates... 70 Front Fog Lamp Does Not Illuminate (One Side)
Aiming Adjustment ................................................. 70 . (FOR USA) ........................................................... 101
.
Bulb Replacement ................................................. 70 . Front Fog lamps Does Not Illuminate (Both Sides)
Removal and Installation ....................................... 70 . (FOR CANADA) ................................................... 102 .
Disassembly and Assembly ................................... 70 . LH Front Fog Lamp Does Not Illuminate (FOR CAN-
AUTO LIGHT SYSTEM ............................................ 71 . ADA) .................................................................... 103
.
Component Parts and Harness Connector Location 71 ... RH Front Fog Lamp Does Not Illuminate (FOR CAN-
System Description ................................................ 71 . ADA) .................................................................... 105
.
OUTLINE ............................................................ 71
. Bulb Replacement ................................................ 106 .
COMBINATION SWITCH READING FUNCTION 72 ... TURN SIGNAL AND HAZARD WARNING LAMPS.107
EXTERIOR LAMP BATTERY SAVER CONTROL 72 ... Component Parts and Harness Connector Location .107
SHUT OFF DELAY ............................................. 72 . System Description .............................................. 107 .
CAN Communication System Description ............. 72 . TURN SIGNAL OPERATION ............................ 107 .
CAN Communication Unit ...................................... 72 . HAZARD LAMP OPERATION .......................... 108 .
Major Components and Functions ......................... 72 . REMOTE KEYLESS ENTRY SYSTEM OPERA-
Schematic .............................................................. 73
. TION ................................................................. 108
.
Wiring Diagram -- AUTO/L -- ............................... 74 . COMBINATION SWITCH READING FUNCTION .109
Terminals and Reference Values for BCM ............. 77 . CAN Communication System Description ........... 109 .
Terminals and Reference Values for IPDM E/R ..... 78 . CAN Communication Unit .................................... 109 .
How to Proceed With Trouble Diagnosis ............... 79 . Schematic ............................................................ 110
.
Preliminary Check ................................................. 79 . Wiring Diagram -- TURN -- ................................ 111 .
SETTING CHANGE FUNCTIONS ...................... 79 . Terminals and Reference Values for BCM ........... 114 .
CHECK POWER SUPPLY AND GROUND CIR- How to Proceed With Trouble Diagnosis ............. 115 .
CUIT ................................................................... 79
. Preliminary Check ................................................ 116 .
CONSULT-II Functions (BCM) ............................... 80 . CHECK POWER SUPPLY AND GROUND CIR-
CONSULT-II BASIC OPERATION ...................... 81 . CUIT .................................................................. 116
.
WORK SUPPORT .............................................. 81 . CONSULT-II Functions ........................................ 118 .
DATA MONITOR ................................................. 82 . CONSULT-II BASIC OPERATION .................... 118 .
ACTIVE TEST .................................................... 83 . DATA MONITOR ............................................... 119 .
CONSULT-II Functions (IPDM E/R) ....................... 84 . ACTIVE TEST ................................................... 119 .
CONSULT-II OPERATION .................................. 84 . Turn Signal Lamp Does Not Operate ................... 119 .
SELF-DIAGNOSTIC RESULTS .......................... 85 . Hazard Warning Lamp Does Not Operate But Turn
DATA MONITOR ................................................. 85 . Signal Lamp Operate ........................................... 121 .
ACTIVE TEST .................................................... 85 . Turn Signal Indicator Lamp Does Not Operate .... 122 .
SELF-DIAGNOSTIC RESULTS .......................... 86 . Bulb Replacement (Front Turn Signal Lamp) ....... 122 .
Trouble Diagnosis Chart by Symptom ................... 86 . Bulb Replacement (Rear Turn Signal Lamp) ....... 122 .

LT-2
Removal and Installation of Front Turn Signal Lamp 122 . How to Proceed With Trouble Diagnosis ............. 145 .
Removal and Installation of Rear Turn Signal Lamp 122 . Preliminary Check ............................................... 145 . A
LIGHTING AND TURN SIGNAL SWITCH ............. 123 . CHECK POWER SUPPLY AND GROUND CIR-
Removal and Installation ..................................... 123 . CUIT ................................................................. 145
.
REMOVAL ........................................................ 123 . CONSULT-II Functions ........................................ 146 . B
INSTALLATION ................................................ 123 . Parking, License Plate and Tail Lamps Do Not Illu-
HAZARD SWITCH ................................................. 124 . minate .................................................................. 147
.
Removal and Installation (M/T) ........................... 124 . Parking, License Plate and Tail Lamps Do Not Turn
REMOVAL ........................................................ 124 . OFF (After Approx. 10 Minutes) .......................... 152 . C
INSTALLATION ................................................ 124 . Bulb Replacement ............................................... 152 .
Removal and Installation (A/T) ............................ 124 . FRONT SIDE MARKER LAMP ........................ 152 .
REMOVAL ........................................................ 124 . LICENSE PLATE LAMP ................................... 152 . D
INSTALLATION ................................................ 124 . FRONT TURN SIGNAL (PARKING) LAMP ...... 152 .
COMBINATION SWITCH ....................................... 125 . TAIL LAMP ....................................................... 152 .
Wiring Diagram -- COMBSW -- ......................... 125 . Removal and Installation ..................................... 152 . E
Combination Switch Reading Function ............... 126 . FRONT SIDE MARKER LAMP ........................ 152 .
CONSULT-II Function ......................................... 126 . LICENSE PLATE LAMP ................................... 153 .
CONSULT-II BASIC OPERATION .................... 126 . FRONT TURN SIGNAL (PARKING) LAMP ...... 153 .
DATA MONITOR .............................................. 127 . TAIL LAMP ....................................................... 153 . F
Combination Switch Inspection ........................... 128 . REAR COMBINATION LAMP ................................ 154 .
Removal and Installation ..................................... 130 . Bulb Replacement ............................................... 154 .
STOP LAMP .......................................................... 131 . REAR FENDER SIDE (REAR TURN SIGNAL G
Component Parts and Harness Connector Location 131 . LAMP BULB) .................................................... 154 .
System Description ............................................. 131 . TRUNK LID SIDE (BACK-UP LAMP) ............... 154 .
Wiring Diagram -- STOP/L -- ............................. 132 . Removal and Installation ..................................... 154 . H
Bulb Replacement of High-mounted Stop Lamp . 133 REMOVAL ........................................................ 154 .
WITH REAR SPOILER .................................... 133 . INSTALLATION ................................................ 155 .
WITHOUT REAR SPOILER ............................. 133 . VANITY MIRROR LAMP ........................................ 156 .
I
Bulb Replacement of Rear Combination Lamp (Stop Bulb Replacement ............................................... 156 .
Lamp) .................................................................. 133
. MAP LAMP ............................................................ 157 .
Removal and Installation of High-mounted Stop Bulb Replacement of Map Lamp ......................... 157 .
Lamp ................................................................... 133
. Removal and Installation of Map Lamp ............... 157 . J
REMOVAL (WITH REAR SPOILER) ................ 133 . REMOVAL ........................................................ 157 .
INSTALLATION ................................................ 133 . INSTALLATION ................................................ 157 .
REMOVAL (WITHOUT REAR SPOILER) ........ 133 . TRUNK ROOM LAMP ............................................ 158 . LT
INSTALLATION ................................................ 133 . Bulb Replacement, Removal and Installation of
Removal and Installation of Rear Combination Trunk Room Lamp ............................................... 158 .
Lamp (Stop Lamp) ............................................... 133 . PERSONAL LAMP ................................................ 159 . L
STEP LAMP ........................................................... 134. Bulb Replacement ............................................... 159 .
Bulb Replacement ............................................... 134 . Removal and Installation ..................................... 159 .
Removal and Installation ..................................... 134 . REMOVAL ........................................................ 159 .
REMOVAL ........................................................ 134 . INSTALLATION ................................................ 159 . M
INTALLATION .................................................. 134 . IGNITION KEY HOLE ILLUMINATION .................. 160 .
BACK-UP LAMP ................................................... 135 . Removal and Installation ..................................... 160 .
Wiring Diagram -- BACK/L -- ............................ 135 . REMOVAL ........................................................ 160 .
A/T MODELS ................................................... 135 . INSTALLATION ................................................ 160 .
M/T MODELS ................................................... 136 . GLOVE BOX LAMP ............................................... 161 .
PARKING, LICENSE PLATE AND TAIL LAMPS .. 137 . Removal and Installation ..................................... 161 .
Component Parts and Harness Connector Location 137 . REMOVAL ........................................................ 161 .
System Description ............................................. 137 . INSTALLATION ................................................ 161 .
OPERATION BY LIGHTING SWITCH ............. 138 . ASHTRAY ILLUMINATION .................................... 162 .
COMBINATION SWITCH READING FUNCTION 138 . Bulb Replacement, Removal and Installation (M/T) 162 .
EXTERIOR LAMP BATTERY SAVER CONTROL 138 . Bulb Replacement, Removal and Installation (A/T) 162 .
CAN Communication System Description ........... 138 . CIGARETTE LIGHTER ILLUMINATION ................ 163 .
CAN Communication Unit ................................... 139 . Removal and Installation ..................................... 163 .
Schematic ........................................................... 140
. INTERIOR ROOM LAMP ....................................... 164 .
Wiring Diagram -- TAIL/L -- ............................... 141 . Component Parts and Harness Connector Location 164 .
Terminals and Reference Values for BCM .......... 144 . System Description .............................................. 164 .
Terminals and Reference Values for IPDM E/R .. 145 . POWER SUPPLY AND GROUND ................... 164 .

LT-3
SWITCH OPERATION ..................................... 165 . Bulb Replacement ................................................ 184.
ROOM LAMP TIMER OPERATION .................. 166 . MAP LAMP ....................................................... 184
.
INTERIOR LAMP BATTERY SAVER CONTROL 167 . Removal and Installation ...................................... 184 .
Schematic ............................................................ 168
. MAP LAMP ....................................................... 184
.
Wiring Diagram -- ROOM/L -- ............................ 170 . ILLUMINATION ....................................................... 185
.
Terminals and Reference Values for BCM ........... 175 . System Description .............................................. 185.
How to Proceed With Trouble Diagnosis ............. 176 . ILLUMINATION OPERATION BY LIGHTING
Preliminary Check ............................................... 176 . SWITCH ............................................................ 185
.
CHECK POWER SUPPLY AND GROUND CIR- EXTERIOR LAMP BATTERY SAVER CONTROL .186
CUIT ................................................................. 176
. CAN Communication System Description ........... 186 .
CONSULT-II Functions ........................................ 177 . CAN Communication Unit .................................... 186 .
CONSULT-II BASIC OPERATION .................... 177 . Schematic ............................................................ 187
.
WORK SUPPORT ............................................ 178 . Wiring Diagram -- ILL -- ..................................... 188 .
DATA MONITOR ............................................... 178 . Removal and Installation ...................................... 196 .
ACTIVE TEST .................................................. 179 . GLOVE BOX LAMP .......................................... 196 .
Map Lamp Control Does Not Operate ................. 180 . BULB SPECIFICATIONS ....................................... 197 .
Ignition key Hole illumination Control Does Not Headlamp ............................................................. 197
.
Operate ................................................................ 181
. Exterior Lamp ....................................................... 197
.
All Step Lamps Does Not Operate ....................... 183 . Interior Lamp/Illumination ..................................... 197 .
All Interior Room Lamps Does Not Operate ........ 184 .

LT-4
PRECAUTIONS

PRECAUTIONS PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AKS00AW4

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
General Precautions for Service Operations AKS00AW6

q Never work with wet hands.
H
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). I
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, J
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. LT
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 L
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 M
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 AKS00AW7

When you read wiring diagrams, refer to the following:
q Refer to GI-14, "How to Read Wiring Diagrams" in GI section.
q Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" for power distribution in PG section.
When you perform trouble diagnosis, refer to the following:
q Refer to GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section.
q Refer to GI-26, "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 AKS009IE

PKIA4878E
LT
System Description AKS009IF

Control of headlamp system operation is dependent upon the position of the combination switch (lighting
switch). When lighting switch is placed in the 2ND position, BCM (body control module) receives input signal L
requesting the headlamps (and tail lamps) illuminate. This input signal is communicated to IPDM E/R (intelli-
gent power distribution module engine room) across CAN communication lines. The CPU (central processing
unit) of IPDM E/R controls headlamp high and headlamp low relay coils. These relays, when energized, direct
M
power to the respective headlamps, which then illuminate.
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)]
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
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)]

LT-7
HEADLAMP (FOR USA)

q to combination meter terminal 43.
With ignition switch in the ON or START position, power is supplied
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 terminal 41 and 42.
With 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 terminal 45 and 46
q through grounds M30 and M66.
Low Beam Operation
With 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 in IPDM E/R controls
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
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 5
q through grounds E17 and E43
q to headlamp LH terminal 5
q through grounds E17 and E43.
With power and ground supplied, low beam headlamps illuminate.
High Beam Operation/Flash-to-Pass Operation
With lighting switch in 2ND position and placed in HIGH or PASS position, BCM receives input signal request-
ing headlamp high beams to illuminate. This input signal is communicated to IPDM E/R across the CAN com-
munication lines. The CPU in IPDM E/R controls 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]
q through IPDM E/R terminal 27
q to headlamp RH terminal 2, and
q to 10A fuse [No. 74, located in IPDM E/R]
q through IPDM E/R terminal 28
q to headlamp LH terminal 2.

LT-8
HEADLAMP (FOR USA)

Ground is supplied
q to headlamp RH terminal 5 and 8 A
q through grounds E17 and E43
q to headlamp LH terminal 5 and 8
B
q through grounds E17 and E43.
With power and ground supplied, 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. C
The unified meter and A/C amp that received high beam request signal by BCM across CAN communication
makes a high beam indicator lamp turn on in combination meter.
D
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL E
When combination switch (lighting switch) is in 2ND position (ON), and 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 headlamps are turned off. F
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
AUTO LIGHT OPERATION (IF EPUIPPED)
Refer to LT-71, "System Description" in "AUTO LIGHT SYSTEM". G
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-106, "VEHICLE
H
SECURITY (THEFT WARNING) SYSTEM" .
XENON HEADLAMP
Xenon type headlamp is adopted to 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 added lighting power, electronic control of
the power supply gives headlamps stable quality and tone color.
Following are some of many advantages of xenon type headlamp. J
q The light produced by 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.
LT
q The light features a high relative spectral distribution at wavelengths to which human eye is most sensi-
tive. This means that even in the rain, more light is reflected back from the road surface toward vehicle, for
added visibility.
L
q Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.

LT-9
HEADLAMP (FOR USA)

CAN Communication System Description AKS009IG

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 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 AKS009IH

Refer to LAN-5, "CAN Communication Unit" .

LT-10
HEADLAMP (FOR USA)

Schematic AKS009II

TKWT1403E

LT-11
HEADLAMP (FOR USA)

Wiring Diagram -- H/LAMP -- AKS009IJ

TKWT1404E

LT-12
HEADLAMP (FOR USA)

TKWT1405E

LT-13
HEADLAMP (FOR USA)

TKWT1406E

LT-14
HEADLAMP (FOR USA)

TKWT1407E

LT-15
HEADLAMP (FOR USA)

Terminals and Reference Values for BCM AKS009IK

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

Lighting, turn, wiper OFF
2 W/L Combination switch input 5 ON
Wiper dial position 4

SKIA5291E

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

SKIA5292E

Lighting, turn, wiper OFF
4 G/R Combination switch input 3 ON
Wiper dial position 4

SKIA5291E

5 W/G Combination switch input 2

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

SKIA5292E

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

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

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-16
HEADLAMP (FOR USA)

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

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

SKIA5292E

38 W/L Ignition switch (ON) ON -- Battery voltage D
39 L CAN- H -- -- --
40 R CAN- L -- -- --
E
42 GY Battery power supply OFF -- Battery voltage
52 B Ground ON -- Approx. 0V
55 W/R Battery power supply OFF -- Battery voltage F
Terminals and Reference Values for IPDM E/R AKS009IL

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

Lighting switch OFF Approx. 0V H
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 I
position ON Battery voltage

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

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

How to Proceed With Trouble Diagnosis AKS009IM
M

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-18, "Preliminary Check" .
4. Check symptom and repair or replace the malfunctioning parts.
5. Does headlamp operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. INSPECTION END

LT-17
HEADLAMP (FOR USA)

Preliminary Check AKS009IN

CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
q Check fuses for blown-out.
Unit Power source Fuse and fusible link No.
F
Battery
18
BCM
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6
72
74
IPDM E/R Battery
76
86

Refer to LT-12, "Wiring Diagram -- H/LAMP --" .
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-
3, "POWER SUPPLY ROUTING CIRCUIT" .

2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
Terminals Ignition switch position
(+)
Terminal (-) OFF ACC ON
Connector
(Wire color)
Battery Battery
11 (LG) 0V
voltage voltage
M1
Battery
38 (W/L) 0V 0V
voltage
Ground
Battery Battery Battery
42 (GY)
voltage voltage voltage
M2
Battery Battery Battery
55 (W/R)
voltage voltage voltage

OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between BCM and
fuse.
SKIA5773E

LT-18
HEADLAMP (FOR USA)

3. CHECK GROUND CIRCUIT A
Check continuity between BCM harness connector and ground.
Terminals Continuity
B
Connector Terminal (Wire color)
Ground Yes
M2 52 (B)
OK or NG C
OK >> INSPECTION END
NG >> Check ground circuit harness.
D
PKIA4900E

CONSULT-II Functions (BCM)

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