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LIGHTING SYSTEM

K ELECTRICAL

SECTION
LIGHTING SYSTEM
LT B

E
CONTENTS
PRECAUTIONS ......................................................... 5 . Sides) .................................................................... 21
. F
Precautions for Supplemental Restraint System Headlamp High Beam Does Not Illuminate (One
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Side) ...................................................................... 23
.
SIONER" ................................................................. 5
. Headlamp Low Beam Does Not Illuminate (Both G
Maintenance Information ......................................... 5 . Sides) .................................................................... 25
.
RHD MODELS ..................................................... 5 . Headlamp Low Beam Does Not Illuminate (One
LHD MODELS ...................................................... 5 . Side) ...................................................................... 27
.
H
General Precautions for Service Operations ........... 5 . Headlamps Do Not Turn OFF ................................ 29 .
HEADLAMP -CONVENTIONAL TYPE- .................... 7 . Aiming Adjustment ................................................. 30 .
Component Parts and Harness Connector Location 7 ..... PREPARATION BEFORE ADJUSTING ............. 30 .
System Description ................................................. 7 . LOW BEAM AND HIGH BEAM .......................... 30 . I
OUTLINE .............................................................. 7
. Bulb Replacement ................................................. 32 .
HEADLAMP OPERATION ................................... 8 . HEADLAMP (HIGH/LOW) .................................. 32 .
COMBINATIONSWITCHREADING FUNCTION 9 ..... PARKING (CLEARANCE) LAMP ....................... 32 . J
AUTO LIGHT OPERATION .................................. 9 . FRONT TURN SIGNAL LAMP ........................... 32 .
FRIENDRY LIGHTING FUNCTION ..................... 9 . Removal and Installation ....................................... 32 .
EXTERIORLAMPBATTERYSAVERCONTROL.... 9 . REMOVAL .......................................................... 32 .
LT
FAIL-SAFE FUNCTION ........................................ 9 . INSTALLATION .................................................. 33 .
CAN Communication System Description ............... 9 . Disassembly and Assembly ................................... 34 .
CAN Communication Unit ....................................... 9 . DISASSEMBLY .................................................. 34 .
Schematic ............................................................. 10
. ASSEMBLY ........................................................ 34 . L
Wiring Diagram -- H/LAMP -- ...............................11 . HEADLAMP - DAYTIME LIGHT SYSTEM - ............ 35 .
Terminals and Reference Values for BCM ............ 15 . Component Parts and Harness Connector Location 35 ...
Terminals and Reference Values for IPDM E/R .... 17 . System Description ................................................ 35 . M
How to Perform Trouble Diagnoses ...................... 17 . OUTLINE ............................................................ 35.
Preliminary Check ................................................. 18 . HEADLAMP OPERATION .................................. 36 .
CHECK POWER SUPPLY AND GROUND CIR- DAYTIME LIGHT OPERATION .......................... 37 .
CUIT ................................................................... 18
. COMBINATIONSWITCHREADING FUNCTION 37 ...
CONSULT-II Functions (BCM) .............................. 19 . AUTO LIGHT OPERATION ................................ 37 .
CONSULT-II INSPECTION PROCEDURE ........ 19 . FRIENDRY LIGHTING FUNCTION .................... 37 .
CONSULT-II Application Items (BCM) ................... 19 . EXTERIORLAMPBATTERYSAVERCONTROL 37 ...
WORK SUPPORT .............................................. 19 . FAIL-SAFE FUNCTION ...................................... 37 .
DATA MONITOR ................................................ 19 . CAN Communication System Description ............. 37 .
ACTIVE TEST .................................................... 20 . CAN Communication Unit ...................................... 37 .
CONSULT-II Functions (IPDM E/R) ...................... 20 . Schematic .............................................................. 38
.
CONSULT-II INSPECTION PROCEDURE ........ 20 . Wiring Diagram -- DTRL -- .................................. 39 .
CONSULT-II Application Items (IPDM E/R) ........... 20 . Terminals and Reference Values for BCM ............. 42 .
DATA MONITOR ................................................ 20 . Terminals and Reference Values for IPDM E/R ..... 43 .
ACTIVE TEST .................................................... 20 . How to Perform Trouble Diagnosis ........................ 43 .
Headlamp High Beam Does Not Illuminate (Both Preliminary Check ................................................. 44 .

LT-1
INSPECTION FOR POWER SUPPLY AND Wiring Diagram--H/AIM-- .....................................69 .
GROUND CIRCUIT ............................................ 44 . Removal and Installation ...................................... ..72 .
CONSULT-II Functions (BCM) ............................... 45 . REMOVAL ...........................................................72 .
CONSULT-II INSPECTION PROCEDURE ......... 45 . INSTALLATION ...................................................72 .
CONSULT-II Application Items (BCM) ................... 45 . Switch Circuit Inspection ........................................72 .
WORK SUPPORT .............................................. 45 . FRONT FOG LAMP ..................................................73 .
DATA MONITOR ................................................. 45 . ComponentParts and Harness Connector Location ...73
ACTIVE TEST .................................................... 46 . System Description ................................................73 .
CONSULT-II Functions (IPDM E/R) ....................... 46 . OUTLINE ............................................................73.
CONSULT-II INSPECTION PROCEDURE ......... 46 . FOG LAMP OPERATION ...................................74 .
CONSULT-II Application Items (IPDM E/R) ........... 46 . COMBINATIONSWITCHREADINGFUNCTION ...74
DATA MONITOR ................................................. 46 . EXTERIORLAMPBATTERYSAVERCONTROL ...74
ACTIVE TEST .................................................... 46 . FAIL-SAFE FUNCTION ......................................74 .
Daytime Light Control Does Not Operate Properly... 47 CAN Communication System Description .............74 .
RH High beam Does Not Illuminate ....................... 48 . CAN Communication Unit ......................................74 .
RH Low Beam Does Not Illuminate ....................... 50 . Schematic ..............................................................75
.
Headlamp High Beam Does Not Illuminate (Both Wiring Diagram -- F/FOG -- .................................76 .
Sides) .................................................................... 51
. Terminals and Reference Values for BCM .............79 .
Headlamp Low Beam Does Not Illuminate (Both Terminals and Reference Values for IPDM E/R .....80 .
Sides) .................................................................... 51
. How to Proceed With Trouble Diagnosis ...............80 .
Headlamp LH High Beam Does Not Illuminate ...... 51 . Preliminary Check ..................................................81 .
Headlamp LH Low Beam Does Not Illuminate ...... 51 . CHECK POWER SUPPLY AND GROUND CIR-
Headlamps Do Not Turn OFF ................................ 51 . CUIT ....................................................................81
.
Aiming Adjustment ................................................. 51 . CONSULT-II Functions (BCM) ...............................82 .
Bulb Replacement ................................................. 51 . CONSULT-II Functions (IPDM E/R) .......................82 .
Removal and Installation ....................................... 51 . Front Fog lamps Do Not Illuminate (Both Sides) ...82
Disassembly and Assembly ................................... 51 . Front Fog Lamp Does Not Illuminate (One Side) ...85
AUTO LIGHT SYSTEM ............................................ 52 . Aiming Adjustment .................................................86 .
ComponentParts and Harness Connector Location 52 ... Bulb Replacement ..................................................86 .
System Description ................................................ 52 . Removal and Installation ...................................... ..87 .
OUTLINE ............................................................ 52
. REMOVAL ...........................................................87 .
COMBINATIONSWITCHREADING FUNCTION 53 ... INSTALLATION ...................................................87 .
FRIENDRY LIGHTING FUNCTION .................... 53 . REAR FOG LAMP ....................................................88 .
EXTERIORLAMPBATTERYSAVERCONTROL 53 ... ComponentParts and Harness Connector Location ...88
CAN Communication System Description ............. 53 . System Description ................................................88 .
CAN Communication Unit ...................................... 53 . OUTLINE ............................................................88.
Major Components and Functions ......................... 53 . COMBINATIONSWITCHREADINGFUNCTION ...89
Schematic .............................................................. 54
. CAN Communication System Description .............89 .
Wiring Diagram -- AUTO/L -- ............................... 55 . CAN Communication Unit ......................................89 .
Terminals and Reference Values for BCM ............. 59 . Wiring Diagram -- R/FOG -- .................................90 .
Terminals and Reference Values for IPDM E/R ..... 61 . Terminals and Reference Values for BCM .............92 .
How to Proceed With Trouble Diagnosis ............... 61 . How to Proceed With Trouble Diagnosis ...............93 .
Preliminary Check ................................................. 62 . Preliminary Check ..................................................94 .
CHECK POWER SUPPLY AND GROUND CIR- CHECK POWER SUPPLY AND GROUND CIR-
CUIT ................................................................... 62
. CUIT ....................................................................94
.
CONSULT-II Functions (BCM) ............................... 63 . CONSULT-II Functions (BCM) ...............................94 .
CONSULT-II INSPECTION PROCEDURE ......... 63 . Rear Fog Lamp Does Not Operate ........................95 .
CONSULT-II Application Items .............................. 63 . Bulb Replacement ..................................................97 .
WORK SUPPORT .............................................. 63 . Removal and Installation ...................................... ..97 .
DATA MONITOR ................................................. 64 . REMOVAL ...........................................................97 .
ACTIVE TEST .................................................... 64 . INSTALLATION ...................................................97 .
Light and rain sensor System Inspection ............... 65 . TURN SIGNAL AND HAZARD WARNING LAMPS...98
Removal and Installation of Light and Rain Sensor 67 ... ComponentParts and Harness Connector Location ...98
REMOVAL .......................................................... 67 . System Description ................................................98 .
INSTALLATION OF LIGHT AND RAIN SENSOR 67 ... TURN SIGNAL OPERATION ..............................98 .
INSTALLATION OF LIGHT AND RAIN SENSOR HAZARD LAMP OPERATION ............................99 .
HOUSING ........................................................... 67. COMBINATIONSWITCHREADINGFUNCTION .100
HEADLAMP AIMING CONTROL ............................. 68 . CAN Communication System Description ........... 100 .
Schematic .............................................................. 68
. CAN Communication Unit .................................... 100 .

LT-2
Wiring Diagram -- TURN -- ............................... 101 . Component Parts and Harness Connector Location 134 .
Terminals and Reference Values for BCM .......... 103 . System Description .............................................. 134 . A
How to Proceed With Trouble Diagnosis ............. 104 . OPERATION BY LIGHTING SWITCH .............. 134 .
Preliminary Check ............................................... 105 . COMBINATIONSWITCHREADING FUNCTION 135 .
CHECK POWER SUPPLY AND GROUND CIR- EXTERIORLAMPBATTERYSAVERCONTROL 135 . B
CUIT ................................................................. 105
. FAIL-SAFE FUNCTION .................................... 135 .
CONSULT-II Functions (BCM) ............................ 106 . CAN Communication System Description ........... 135 .
CONSULT-II INSPECTION PROCEDURE ...... 106 . CAN Communication Unit .................................... 135 .
CONSULT-II Application Items ............................ 106 . Schematic ............................................................ 136
. C
WORK SUPPORT ............................................ 106 . Wiring Diagram -- TAIL/L -- ............................... 137 .
DATA MONITOR .............................................. 106 . Terminals and Reference Values for BCM ........... 140 .
ACTIVE TEST .................................................. 106 . Terminals and Reference Values for IPDM E/R ... 141 . D
Turn Signal Lamp Does Not Operate .................. 107 . How to Proceed With Trouble Diagnosis ............. 141 .
Hazard Warning Lamp Does Not Operate But Turn Preliminary Check ............................................... 142 .
Signal Lamp Operates ........................................ 109 . CHECK POWER SUPPLY AND GROUND CIR- E
Bulb Replacement (Front Turn Signal Lamp) ....... 111 . CUIT ................................................................. 142
.
Bulb Replacement (Rear Turn Signal Lamp) ....... 111 . CONSULT-II Functions (BCM) ............................. 143 .
Bulb Replacement (Side Turn Signal Lamp) ........ 111 . CONSULT-II Functions (IPDM E/R) ..................... 143 .
Removal and Installation of Front Turn Signal Lamp 111 .. Parking, License Plate and Tail Lamps Do Not Illu- F
Removal and Installation of Rear Turn Signal Lamp 111 .. minate .................................................................. 143
.
Removal and Installation of Side Turn Signal Lamp 111 .. Parking, License Plate and Tail Lamps Do Not Turn
REMOVAL ......................................................... 111. OFF (After Approx. 10 Minutes) .......................... 147 . G
INSTALLATION ................................................. 111 . Bulb Replacement ............................................... 148 .
LIGHTING AND TURN SIGNAL SWITCH ..............112 . PARKING LAMP ............................................... 148 .
Removal and Installation ......................................112 . LICENSE PLATE LAMP ................................... 148 . H
REMOVAL .........................................................112 . TAIL LAMP ....................................................... 148 .
INSTALLATION .................................................112 . Removal and Installation ..................................... 148 .
HAZARD SWITCH ..................................................113 . PARKING LAMP ............................................... 148 .
I
Removal and Installation ......................................113 . LICENSE PLATE LAMP ................................... 148 .
REMOVAL .........................................................113 . TAIL LAMP ....................................................... 148 .
INSTALLATION .................................................113 . REAR COMBINATION LAMP ................................ 149 .
COMBINATION SWITCH ........................................114 . Bulb Replacement ............................................... 149 . J
System Description ..............................................114 . Removal and Installation ..................................... 149 .
COMBINATIONSWITCHREADING FUNCTION ..114 REMOVAL ........................................................ 149 .
Wiring Diagram -- COMBSW -- ..........................117 . INSTALLATION ................................................ 149 . LT
Terminals and Reference Values for BCM ...........118 . INTERIOR ROOM LAMP ....................................... 150 .
Reference Values for BCM (Input) ...................... 121 . Component Parts and Harness Connector Location 150 .
CONSULT-II Function (BCM) .............................. 124 . System Description .............................................. 150 . L
CONSULT-II INSPECTION PROCEDURE ...... 124 . POWER SUPPLY AND GROUND ................... 150 .
CONSULT-II Application Items ............................ 124 . SWITCH OPERATION ..................................... 151 .
DATA MONITOR .............................................. 124 . INTERIOR ROOM LAMP TIMER OPERATION. 152
Combination Switch Inspection ........................... 125 . INTERIOR ROOM LAMP BATTERY SAVER M
Removal and Installation ..................................... 128 . CONTROL ........................................................ 152 .
STOP LAMP .......................................................... 129 . Schematic ............................................................ 153
.
Wiring Diagram -- STOP/L -- ............................. 129 . --MODELS WITHOUT PERSONAL LAMP-- .. 153 .
Bulb Replacement of High-Mounted Stop Lamp . 130 --MODELS WITH PERSONAL LAMP-- .......... 154 .
BulbReplacementofRearCombinationLamp(Stop Wiring Diagram -- ROOM/L -- ........................... 155 .
Lamp) .................................................................. 130
. --MODELS WITHOUT PERSONAL LAMP-- .. 155 .
Removal and Installation of High-Mounted Stop --MODELS WITH PERSONAL LAMP-- .......... 159 .
Lamp ................................................................... 130
. Terminals and Reference Values for BCM ........... 163 .
REMOVAL ........................................................ 130 . How to Proceed With Trouble Diagnosis ............. 164 .
INSTALLATION ................................................ 130 . Preliminary Check ............................................... 165 .
Removal and Installation of Rear Combination CHECK POWER SUPPLY AND GROUND CIR-
Lamp (Stop Lamp) ............................................... 130 . CUIT ................................................................. 165
.
BACK-UP LAMP ................................................... 131 . CONSULT-II Functions (BCM) ............................. 166 .
Wiring Diagram -- BACK/L -- ............................ 131 . CONSULT-II INSPECTION PROCEDURE ....... 166 .
Bulb Replacement ............................................... 133 . CONSULT-II Application Items ............................ 166 .
Removal and Installation ..................................... 133 . DATA MONITOR .............................................. 166 .
PARKING, LICENSE PLATE AND TAIL LAMPS .. 134 . ACTIVE TEST .................................................. 166 .

LT-3
Map Lamp Control Does Not Operate ................. 167 . ILLUMINATION OPERATION BY LIGHTING
Personal Lamp Control Does Not Operate (Models SWITCH ............................................................ 173
.
With Personal Lamp) ........................................... 169
. EXTERIORLAMPBATTERYSAVERCONTROL .174
Bulb Replacement ............................................... 171
. CAN Communication System Description ........... 174 .
MAP LAMP, PERSONAL LAMP ....................... 171 . CAN Communication Unit .................................... 174 .
LUGGAGE LOOM LAMP ................................. 171 . Schematic ............................................................ 175
.
Removal and Installation ..................................... 171
. Wiring Diagram -- ILL -- ..................................... 176 .
MAP LAMP, PERSONAL LAMP ....................... 171 . BULB SPECIFICATIONS ....................................... 183 .
LUGGAGE ROOM LAMP ................................. 172 . Headlamp ............................................................. 183
.
ILLUMINATION ...................................................... 173
. Exterior Lamp ....................................................... 183
.
System Description .............................................. 173
. Interior Lamp/Illumination ..................................... 183 .

LT-4
PRECAUTIONS

PRECAUTIONS PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" BKS001CE

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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual. C
WARNING:
q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer. D
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. E
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. F
Maintenance Information BKS0028K

If any of following part is replaced, always replace with new* one. G
If it's not (or fail to do so), the electrical system may not be operated properly.
*: New one means a virgin control unit that has never been energized on-board.
RHD MODELS H
q BCM (Models without Intelligent Key system)
q Intelligent Key unit (Models with Intelligent Key system)
q ECM I
q IPDM E/R
q Combination meter
J
q EPS control unit
LHD MODELS
q BCM (Models without Intelligent Key system) LT
q Intelligent Key unit (Models with Intelligent Key system)
q ECM
L
General Precautions for Service Operations BKS001CF

q Never work with wet hands.
q Xenon headlamp includes high voltage generating part. Be sure M
to disconnect battery negative cable (negative terminal) or
power fuse before removing, installing, or touching the xenon
headlamp (including lamp bulb).
q Turn the lighting switch OFF before disconnecting and connect-
ing the connector.
q When turning the xenon headlamp on and while it is illuminated,
never touch the harness, bulb, and socket of the headlamp.
q When checking the headlamp on/off operation, check it on vehi- PKIA0183E
cle and with the power connected to the vehicle-side connector.
q Do not touch the headlamp bulb glass surface with bare hands or allow oil or grease to get on it. Do not
touch the headlamp bulb just after the headlamp is turned off, because it is very hot.

LT-5
PRECAUTIONS

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-6
HEADLAMP -CONVENTIONAL TYPE-

HEADLAMP -CONVENTIONAL TYPE- PFP:26010
A
Component Parts and Harness Connector Location BKS001CH

G
MKIB2268E

1. IPDM E/R E8,E11,E12 2. BCM M57,M59 (View with instrument 3. Combination switch M38
upper panel removed)
H
4. Combination meter M27

System Description BKS001CI

I
The control of the headlamp system operation is dependent upon the position of the combination switch (light-
ing switch). When the lighting switch is placed in the 2ND position, the BCM (body control module) receives
input signal requesting the headlamps (and tail lamps) illuminate. This input signal is communicated to the
IPDM E/R (intelligent power distribution module engine room) via the CAN communication. The CPU (central J
processing unit) located in the IPDM E/R controls the headlamp high and headlamp low relay coils. These
relays, when energized, direct power to the respective headlamps, which then illuminate.
OUTLINE LT
Power is supplied at all times
q to ignition relay (located in IPDM E/R),
L
q to headlamp high RH and LH relay (located in IPDM E/R)
q to headlamp low relay (located in IPDM E/R) from battery directly,
q through 20A fuse (No. 61, located in IPDM E/R),
M
q through 20A fuse (No. 62, located in IPDM E/R),
q through 40A fusible link (letter J, located in fuse, fusible link and relay box)
q to BCM terminals 74 and 79,
q through 10A fuse [No. 7, located in fuse block (J/B)]
q to combination meter terminal 27.
With the ignition switch in the ON or START position, power is supplied
q to ignition relay (located in IPDM E/R) from battery directly,
q through 10A fuse [No. 5, located in fuse block (J/B)]
q to BCM terminal 24,
q through 10A fuse [No. 4, located in fuse block (J/B)]
q to combination meter terminal 28.
Ground is supplied
q to BCM terminals 2 and 70
q to combination meter terminals 21, 22 and 23

LT-7
HEADLAMP -CONVENTIONAL TYPE-

q through grounds M21 and M66,
q to IPDM E/R terminals 3 and 54
q through grounds E45 (CR and HR engine models),E28 and E44.
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 via the CAN communication. The CPU located in the IPDM
E/R controls the headlamp low relay coil, which when energized, directs power
q through 15A fuse (No. 50, located in IPDM E/R)
q through IPDM E/R terminal 48
q to headlamp RH terminal 1,
q through 15A fuse (No. 49, located in IPDM E/R)
q through IPDM E/R terminal 50
q to headlamp LH terminal 1.
Ground is supplied
q to headlamp RH and LH terminals 3
q through grounds E45 (CR and HR engine models),E28 and E44.
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 via the
CAN communication. The CPU located in the IPDM E/R controls the headlamp high relay coil, which when
energized, directs power
q through 10A fuse (No. 43, located in IPDM E/R)
q through IPDM E/R terminal 46
q to headlamp RH terminal 2,
q through 10A fuse (No. 44, located in IPDM E/R)
q through IPDM E/R terminal 47
q to headlamp LH terminal 2.
Ground is supplied
q to headlamp RH and LH terminals 3
q through grounds E45 (CR and HR engine models),E28 and E44.
With power and ground supplied, the high beam headlamps illuminate.
The combination meter that received the high beam request signal by BCM via the CAN communication
makes a high beam indicator lamp turn ON in combination meter.

LT-8
HEADLAMP -CONVENTIONAL TYPE-

COMBINATION SWITCH READING FUNCTION
Refer to LT-114, "COMBINATION SWITCH READING FUNCTION" . A

AUTO LIGHT OPERATION
Refer to LT-52, "System Description" . B
FRIENDRY LIGHTING FUNCTION
Low beam headlamps will illuminate for 30 seconds when,
q ignition switch is in OFF position, C
q lighting switch is placed in OFF position, and
q lighting switch is placed in PASS position.
D
Each activation of the switch adds 30 seconds to a maximum of 2 minutes.
EXTERIOR LAMP BATTERY SAVER CONTROL
To avoid flat battery caused by user leaving exterior lamps ON. When ignition is OFF and the driver side door E
is opened, all exterior lamps will be turned OFF. If the user wants some lamps to remain ON then they must
switch these lamps OFF then ON again with the combination switch once the driver side door has been
opened. A buzzer will sound if any exterior lamps are ON with the driver side door opened and ignition OFF.
F
*:This setting can be changed by CONSULT-II. Refer to LT-19, "WORK SUPPORT" .
FAIL-SAFE FUNCTION
When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control. If the G
fail-safe system is operating, headlamps illuminate when the ignition switch is turned from OFF to ON and
headlamps are turned off when the ignition switch is turn from ON to OFF. If the fail-safe system is operating,
headlamps does not operate when the combination switch is in any position. After CAN communication recov-
H
ers normally, it also returns to normal control. (Refer to PG-18, "Fail-safe Control" .)
CAN Communication System Description BKS001CJ

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul- I
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 J
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 BKS001CK LT
Refer to LAN-27, "CAN Communication Unit" .

LT-9
HEADLAMP -CONVENTIONAL TYPE-

Schematic BKS001CL

MKWA4318E

LT-10
HEADLAMP -CONVENTIONAL TYPE-

Wiring Diagram -- H/LAMP -- BKS001CM

MKWA4319E

LT-11
HEADLAMP -CONVENTIONAL TYPE-

MKWA4320E

LT-12
HEADLAMP -CONVENTIONAL TYPE-

MKWA4321E

LT-13
HEADLAMP -CONVENTIONAL TYPE-

MKWA4322E

LT-14
HEADLAMP -CONVENTIONAL TYPE-

Terminals and Reference Values for BCM BKS001CN

A
CAUTION:
q Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.
q Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position. B
Wiper dial position can be confirmed on CONSULT-II. Refer to LT-19, "DATA MONITOR" .

Ter- Signal Measuring condition C
Wire
minal Signal name input/ Ignition Reference value
color Operation or condition
No. output switch
2 B Ground -- ON -- Approx. 0V D

OFF
Lighting,
turn, F
wiper PKIB4958J
switch Approx. 1.2V
Combination
8 L Output ON (Wiper
switch output 3 G
intermit-
tent dial
position Any of the conditions below
4) q Lighting switch 2ND H
q Lighting switch HI beam
(Operates only HI beam
switch)
PKIB4959J
I
Approx. 1.0V

OFF
LT

PKIB4956J

Approx. 0.9V L
Lighting,
turn,
wiper M
switch
Combination
15 W Input ON (Wiper Lighting switch 2ND
switch input 5
intermit-
tent dial
position PKIB8639J
4) Approx. 2.5 - 3.0V

Lighting switch HIGH beam
(Operates only HIGH beam
switch)

PKIB8644J

Approx. 1.5 - 2.0V
Input/
19 L CAN - H ON -- Approx. 2.6V
Output

LT-15
HEADLAMP -CONVENTIONAL TYPE-

Ter- Signal Measuring condition
Wire
minal Signal name input/ Ignition Reference value
color Operation or condition
No. output switch
Ignition switch
24 O Input ON -- Battery voltage
(ON)

OFF
Lighting,
turn,
wiper PKIB4958J
switch Approx. 1.2V
Combination
28 G Output ON (Wiper
switch output 2
intermit-
tent dial
position Any of the conditions below
4) q Lighting switch 2ND
q Lighting switch PASSING
(Operates only PASSING
switch)
PKIB4959J

Approx. 1.0V

OFF

PKIB4958J

Approx. 1.0V

Lighting,
turn,
wiper
switch
Combination
34 Y Input ON (Wiper Lighting switch 2ND
switch input 4
intermit-
tent dial
position PKIB8628J
4) Approx. 1.5 - 2.0V

Lighting switch PASSING
(Operates only PASSING
switch)

PKIB8629J

Approx. 2.0V
Input/
39 Y CAN - L ON -- Approx. 2.4V
Output
70 B Ground -- ON -- Approx. 0V
74 Battery power
Y Input OFF -- Battery voltage
79 supply

LT-16
HEADLAMP -CONVENTIONAL TYPE-

Terminals and Reference Values for IPDM E/R BKS001CO

A
Measuring condition
Signal
Terminal Wire Igni-
Signal name input/ Reference value
No. color tion Operation or condition
output B
switch
3 B Ground -- ON -- Approx. 0V
Lighting switch HIGH OFF Approx. 0V C
Headlamp HIGH
46 Y ON beam or PASSING
RH ON Battery voltage
position
Lighting switch HIGH OFF Approx. 0V
47 G Headlamp HIGH LH ON beam or PASSING D
position ON Battery voltage
Output
Lighting switch 2ND OFF Approx. 0V
48 P Headlamp LOW RH ON E
position ON Battery voltage

Lighting switch 2ND OFF Approx. 0V
50 L Headlamp LOW LH ON
position ON Battery voltage F
Input/
52 L CAN - H -- -- --
Output
54 B Ground -- ON -- Approx. 0V G
Input/
58 Y CAN - L -- -- --
Output
H
How to Perform Trouble Diagnoses BKS001CP

1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-7, "System Description" . I
3. Perform the Preliminary Check. Refer to LT-18, "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. J
6. INSPECTION END

LT-17
HEADLAMP -CONVENTIONAL TYPE-

Preliminary Check BKS001CQ

CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSE
Check for blown fuses.
Unit Power source Fuse and fusible link No.
Battery J
BCM
Ignition switch ON or START position 5
43
44
49
IPDM E/R Battery
50
61
62

Refer to LT-11, "Wiring Diagram -- H/LAMP --" .
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer to PG-4, "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.
Terminal Ignition switch position
(+)
BCM (-) OFF ACC ON
Terminal
Connector
Battery
M57 24 Approx. 0V Approx. 0V
voltage
Battery Battery Battery
74 Ground
voltage voltage voltage
M59 MKIB0352E
Battery Battery Ba

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