check INFINITI M35 2006 Factory Service Manual
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Page 4428 of 5621

LT-1
LIGHTING SYSTEM
K ELECTRICAL
CONTENTS
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SECTION LT
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LT
Revision: 2006 January2006 M35/M45
LIGHTING SYSTEM
PRECAUTIONS .......................................................... 6
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 6
General Precautions for Service Operations ............ 7
HEADLAMP (FOR USA) - CONVENTIONAL TYPE - ..... 8
Component Parts and Harness Connector Location ..... 8
System Description .................................................. 8
OUTLINE ............................................................... 9
HEADLAMP OPERATION .................................. 10
COMBINATION SWITCH READING FUNCTION .... 11
EXTERIOR LAMP BATTERY SAVER CONTROL .... 11
AUTO LIGHT OPERATION .................................. 11
CAN Communication System Description ............... 11
CAN Communication Unit ....................................... 11
Schematic .............................................................. 12
Wiring Diagram — H/LAMP — ............................... 13
Terminals and Reference Values for BCM ............. 18
Terminals and Reference Values for IPDM E/R ..... 20
How to Perform Trouble Diagnoses ....................... 20
Preliminary Check .................................................. 20
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 20
CONSULT-II Functions (BCM) ............................... 22
CONSULT-II BASIC OPERATION ....................... 22
DATA MONITOR ................................................. 23
ACTIVE TEST ..................................................... 24
CONSULT-II Functions (IPDM E/R) ....................... 25
CONSULT-II BASIC OPERATION ....................... 25
DATA MONITOR ................................................. 26
ACTIVE TEST ..................................................... 26
Headlamp High Beam Does Not Illuminate (Both
Sides) ..................................................................... 27
Headlamp High Beam Does Not Illuminate (One
Side) ....................................................................... 30
High Beam Indicator Lamp Does Not Illuminate .... 31
Headlamp Low Beam Does Not Illuminate (Both
Sides) ..................................................................... 32
Headlamp Low Beam Does Not Illuminate (One
Side) ....................................................................... 35Headlamps Do Not Turn OFF ................................. 37
Aiming Adjustment .................................................. 38
PREPARATION BEFORE ADJUSTING .............. 38
LOW BEAM AND HIGH BEAM ........................... 38
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ............ 39
Bulb Replacement .................................................. 39
HEADLAMP (INNER) HIGH BEAM ..................... 39
HEADLAMP (OUTER) LOW BEAM .................... 40
PARKING LAMP (CLEARANCE) LAMP .............. 40
FRONT TURN SIGNAL LAMP ............................ 40
FRONT SIDE MARKER LAMP ........................... 40
Removal and Installation ........................................ 41
REMOVAL ........................................................
... 41
INSTALLATION ................................................... 41
Disassembly and Assembly .................................... 42
DISASSEMBLY ................................................... 42
ASSEMBLY ......................................................... 42
HEADLAMP (FOR USA) - XENON TYPE - .............. 43
Component Parts and Harness Connector Location ... 43
System Description ................................................. 43
OUTLINE ............................................................. 44
HEADLAMP OPERATION ................................... 45
COMBINATION SWITCH READING FUNCTION ... 46
EXTERIOR LAMP BATTERY SAVER CONTROL ... 46
AUTO LIGHT OPERATION ................................. 46
XENON HEADLAMP ........................................... 46
CAN Communication System Description .............. 46
CAN Communication Unit ....................................... 46
Schematic ............................................................... 47
Wiring Diagram — H/LAMP — ............................... 48
Terminals and Reference Values for BCM .............. 53
Terminals and Reference Values for IPDM E/R ...... 55
How to Perform Trouble Diagnoses ....................... 55
Preliminary Check .................................................. 55
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 55
CONSULT-II Functions (BCM) ................................ 57
CONSULT-II BASIC OPERATION ....................... 57
DATA MONITOR ................................................. 58
Page 4429 of 5621

LT-2Revision: 2006 January2006 M35/M45 ACTIVE TEST ..................................................... 59
CONSULT-II Functions (IPDM E/R) ........................ 60
CONSULT-II BASIC OPERATION ....................... 60
DATA MONITOR .................................................. 61
ACTIVE TEST ..................................................... 61
Headlamp High Beam Does Not Illuminate (Both
Sides) ..................................................................... 62
Headlamp High Beam Does Not Illuminate (One
Side) ....................................................................... 65
High Beam Indicator Lamp Does Not Illuminate ..... 66
Headlamp Low Beam Does Not Illuminate (Both
Sides) ..................................................................... 67
Headlamp Low Beam Does Not Illuminate (One
Side) ....................................................................... 70
Headlamps Do Not Turn OFF ................................. 72
General Information for Xenon Headlamp Trouble
Diagnosis ................................................................ 73
Caution: .................................................................. 73
Xenon Headlamp Trouble Diagnosis ...................... 73
Aiming Adjustment .................................................. 74
PREPARATION BEFORE ADJUSTING .............. 74
LOW BEAM AND HIGH BEAM ........................... 74
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ............ 75
Bulb Replacement ...............................................
... 75
HEADLAMP (INNER) HIGH BEAM ..................... 75
HEADLAMP (OUTER) LOW BEAM .................... 76
PARKING LAMP (CLEARANCE LAMP) .............. 76
FRONT TURN SIGNAL LAMP ............................ 76
FRONT SIDE MARKER LAMP ............................ 76
Removal and Installation ........................................ 76
Disassembly and Assembly .................................... 77
DISASSEMBLY ................................................... 77
ASSEMBLY ......................................................... 78
HEADLAMP (FOR CANADA) - DAYTIME LIGHT
SYSTEM - .................................................................. 79
Component Parts and Harness Connector Location ... 79
System Description ................................................. 79
OUTLINE ............................................................. 80
HEADLAMP OPERATION ................................... 81
DAYTIME LIGHT OPERATION ........................... 82
COMBINATION SWITCH READING FUNCTION ... 82
AUTO LIGHT OPERATION ................................. 82
CAN Communication System Description .............. 82
Schematic ............................................................... 83
Wiring Diagram — DTRL — ................................... 84
Terminals and Reference Values for BCM .............. 89
Terminals and Reference Values for IPDM E/R ...... 91
How to Perform Trouble Diagnosis ......................... 91
Preliminary Check .................................................. 92
INSPECTION FOR POWER SUPPLY AND
GROUND CIRCUIT ............................................. 92
INSPECTION FOR PARKING BRAKE SWITCH
CIRCUIT .............................................................. 93
CONSULT-II Functions (BCM) ................................ 94
CONSULT-II BASIC OPERATION ....................... 94
DATA MONITOR .................................................. 95
ACTIVE TEST ..................................................... 96
CONSULT-II Functions (IPDM E/R) ........................ 97CONSULT-II BASIC OPERATION ....................... 97
DATA MONITOR .................................................. 98
ACTIVE TEST ...................................................... 98
Daytime Light Control Does Not Operate Properly
(Normal Headlamps Operate Properly) .................. 99
Headlamp High Beam Does Not Illuminate (Both
Sides) ....................................................................102
RH High Beam Does Not Illuminate But LH High
Beam Illuminates ..................................................105
LH High Beam Does Not Illuminate But RH High
Beam Illuminates ..................................................107
Headlamp Low Beam Does Not Illuminate (Both
Sides) ....................................................................109
Headlamp Low Beam Does Not Illuminate (One
Side) ......................................................................112
Headlamps Do Not Turn OFF ...............................114
General Information for Xenon Headlamp Trouble
Diagnosis ..............................................................115
CAUTION: .............................................................115
Xenon Headlamp Trouble Diagnosis ....................115
Aiming Adjustment ................................................115
Bulb Replacement .................................................115
Removal and Installation .......................................115
Disassembly and Assembly ..................................115
AUTO LIGHT SYSTEM ...........................................116
Component Parts and Harness Connector Location .116
System Description ...............................................116
OUTLINE ...........................................................116
COMBINATION SWITCH READING FUNCTION .117
EXTERIOR LAMP BATTERY SAVER CONTROL .117
DELAY TIMER FUNCTION ................................117
CAN Communication System Description ............117
CAN Communication Unit .....................................117
Major Components and Functions ........................117
Schematic .............................................................118
Wiring Diagram — AUTO/L — ..............................119
Terminals and Reference Values for BCM ............123
Terminals and Reference Values for IPDM E/R ....125
How to Perform Trouble Diagnoses ......................125
Preliminary Check .................................................126
SETTING CHANGE FUNCTIONS .....................126
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ...................................................................126
CONSULT-II Functions (BCM) .............................
.127
CONSULT-II BASIC OPERATION .....................127
WORK SUPPORT .............................................128
DATA MONITOR ................................................129
ACTIVE TEST ....................................................130
Symptom Chart .....................................................130
Lighting Switch Inspection ....................................131
Optical Sensor System Inspection ........................131
Removal and Installation for Optical Sensor .........133
REMOVAL ..........................................................133
INSTALLATION ..................................................133
ACTIVE AFS ............................................................134
Component Parts and Harness Connector Location .134
System Description ...............................................135
AFS (ADAPTIVE FRONT-LIGHTING SYSTEM) .135
HEADLAMP AUTO AIMING ..............................136
Page 4430 of 5621

LT-3
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Revision: 2006 January2006 M35/M45 OUTLINE ...........................................................136
AFS OPERATION .............................................137
HEADLAMP AUTO AIMING OPERATION ........139
CAN COMMUNICATION SYSTEM DESCRIP-
TION ..................................................................139
CAN COMMUNICATION UNIT .........................139
Component Parts Description ..............................140
AFS CONTROL UNIT .......................................140
SWIVEL ACTUATOR ........................................140
AIMING MOTOR ...............................................140
AFS SWITCH ....................................................141
HEIGHT SENSOR ............................................141
STEERING ANGLE SENSOR ..........................141
IPDM E/R ..........................................................141
ECM ..................................................................141
TCM ..................................................................141
UNIFIED METER AND A/C AMP. .....................141
COMBINATION METER ...................................141
Schematic ............................................................142
Wiring Diagram — AFS — ...................................143
Terminals and Reference Values for AFS Control
Unit .......................................................................149
How to Proceed with Trouble Diagnosis ..............151
Preliminary Check ................................................151
CONSULT-II Function (ADAPTIVE LIGHT) ..........152
CONSULT-II BASIC OPERATION .....................152
WORK SUPPORT (STEERING ANGLE SEN-
SOR ADJUSTMENT) ........................................153
WORK SUPPORT (LEVELIZER ADJUSTMENT)
.153
SELF-DIAG RESULTS ......................................154
DATA MONITOR ...............................................158
ACTIVE TEST ...................................................160
Symptom Chart ....................................................161
DTC B2503 SWIVEL ACTUATOR RH .................162
DTC B2504 SWIVEL ACTUATOR LH ..................168
DTC B2514 HI SEN UNUSUAL RR .....................174
DTC B2521 ECU CIRC ........................................178
AFS Operation Check (Function Test) .................181
Auto Aiming Operation Check (Function Test) .....183
AFS Switch Does Not Operate .............................185
Auto Aiming Does Not Operate (Check Aiming
Motor System Circuit) ..........................................
.187
AFS OFF Indicator Does Not Operate .................190
Removal and Installation of Steering Angle Sensor .190
Removal and Installation of Front Combination
Lamp ....................................................................190
Removal and Installation of AFS Control Unit ......191
REMOVAL ........................................................
.191
INSTALLATION .................................................191
Removal and Installation of AFS Switch ..............191
REMOVAL ........................................................
.191
INSTALLATION .................................................191
Removal and Installation of Height Sensor ..........192
REMOVAL ........................................................
.192
INSTALLATION .................................................192
FRONT FOG LAMP ................................................193
Component Parts and Harness Connector Location .193
System Description ..............................................193OUTLINE ...........................................................194
COMBINATION SWITCH READING FUNCTION .195
EXTERIOR LAMP BATTERY SAVER CONTROL .195
CAN Communication System Description ............195
CAN Communication Unit .....................................195
Schematic .............................................................196
Wiring Diagram — F/FOG — ................................197
Terminals and Reference Values for BCM ............201
Terminals and Reference Values for IPDM E/R ....202
How to Perform Trouble Diagnoses .....................202
Preliminary Check ................................................202
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................202
CONSULT-II Functions (BCM) ..............................203
CONSULT-II Functions (IPDM E/R) ......................203
Front Fog Lamps Do Not Illuminate (Both Sides) . 204
Front Fog Lamp Does Not Illuminate (One Side) . 207
Front Fog Lamps Do Not Turn OFF ......................208
Aiming Adjustment ................................................209
Bulb Replacement ................................................210
Removal and Installation ......................................210
REMOVAL ........................................................
.210
INSTALLATION .................................................210
TURN SIGNAL AND HAZARD WARNING LAMPS .211
Component Parts and Harness Connector Location .211
System Description ...............................................211
TURN SIGNAL OPERATION ............................211
HAZARD LAMP OPERATION ...........................212
COMBINATION SWITCH READING FUNCTION .213
CAN Communication System Description ............213
CAN Communication Unit .....................................213
Schematic .............................................................214
Wiring Diagram — TURN — .................................215
Terminals and Reference Values for BCM ............219
How to Perform Trouble Diagnoses .....................220
Preliminary Check ................................................221
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................221
CONSULT-II Functions (BCM) ..............................223
CONSULT-II BASIC OPERATION .....................223
DATA MONITOR ...............................................224
ACTIVE TEST ...................................................224
Turn Signal Lamp Does Not Operate ...................225
H a z a r d W a r n i n g L a m p D o e s N o t O p e r a t e B u t T u r n
Signal Lamp Operate ............................................227
Turn Signal Indicator Lamp Does Not Operate ....228
Bulb Replacement/Removal and Installation of Side
Turn Signal Lamp .................................................229
REMOVAL ........................................................
.229
INSTALLATION .................................................229
Bulb Replacement (Front Turn Signal Lamp) .......229
Bulb Replacement (Rear Turn Signal Lamp) ........229
Removal and Installation of Front Turn Signal Lamp .229
Removal and Installation of Rear Turn Signal Lamp .229
LIGHTING AND TURN SIGNAL SWITCH ..............230
Removal and Installation ......................................230
REMOVAL ........................................................
.230
INSTALLATION .................................................230
Switch Circuit Inspection ......................................230
Page 4431 of 5621

LT-4Revision: 2006 January2006 M35/M45 HAZARD SWITCH ..................................................231
Removal and Installation ......................................231
REMOVAL ........................................................
.231
COMBINATION SWITCH ........................................232
Wiring Diagram — COMBSW — ..........................232
Combination Switch Reading Function .................233
Terminals and Reference Values for BCM ............233
CONSULT-II Functions (BCM) ..............................238
CONSULT-II BASIC OPERATION .....................238
DATA MONITOR ................................................239
Combination Switch Inspection ............................240
Removal and Installation ......................................242
STOP LAMP ............................................................243
Wiring Diagram — STOP LAMP — ......................243
High-Mounted Stop Lamp .....................................245
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ..................................................245
Stop Lamp ............................................................245
BULB REPLACEMENT .....................................245
BULB REPLACEMENT .....................................245
BACK-UP LAMP .....................................................246
Wiring Diagram — B/LAMP — .............................246
Bulb Replacement ...............................................
.247
Removal and Installation ......................................248
REMOVAL ........................................................
.248
INSTALLATION ..................................................248
PARKING, LICENSE PLATE AND TAIL LAMPS ....249
Component Parts and Harness Connector Location .249
System Description ...............................................249
OUTLINE ...........................................................249
OPERATION BY LIGHTING SWITCH ...............250
COMBINATION SWITCH READING FUNCTION .250
EXTERIOR LAMP BATTERY SAVER CONTROL .250
CAN Communication System Description ............250
CAN Communication Unit .....................................250
Schematic .............................................................251
Wiring Diagram — TAIL/L — ................................252
Terminals and Reference Values for BCM ............257
Terminals and Reference Values for IPDM E/R ....258
How to Perform Trouble Diagnoses ......................258
Preliminary Check ................................................258
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................258
CONSULT-II Functions (BCM) ..............................259
CONSULT-II Functions (IPDM E/R) ......................259
Parking, License Plate and Tail Lamps Do Not Illu-
minate ...................................................................260
Parking, License Plate and Tail Lamps Do Not Turn
OFF (After Approx. 10 Minutes) ...........................264
License Plate Lamp ..............................................265
BULB REPLACEMENT .....................................265
Removal and Installation ......................................265
REMOVAL ........................................................
.265
INSTALLATION ..................................................265
Front Parking (Clearance) Lamp ..........................265
BULB REPLACEMENT .....................................265
REMOVAL AND INSTALLATION .......................265
REAR COMBINATION LAMP .................................266
Bulb Replacement ...............................................
.266REAR TURN SIGNAL LAMP BULB, STOP/TAIL
LAMP BULB ...................................................... .266
Removal and Installation .......................................266
REMOVAL ..........................................................266
INSTALLATION ..................................................266
INTERIOR ROOM LAMP ........................................267
Component Parts and Harness Connector Location .267
System Description ...............................................267
ROOM LAMP TIMER BASIC OPERATION .......267
POWER SUPPLY AND GROUND .....................268
SWITCH OPERATION .......................................269
ROOM LAMP TIMER OPERATION ...................270
CONDITIONS FOR CANCELING TIMER ..........271
ROOM LAMP TIMER INAPPLICABLE LAMPS
OPERATION ......................................................271
INTERIOR ROOM LAMP BATTERY SAVER
FUNCTION .......................................................
.271
Schematic .............................................................272
Wiring Diagram — ROOM/L — .............................274
Terminals and Reference Values for BCM ............281
How to Perform Trouble Diagnoses ......................282
Preliminary Check .................................................283
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ...................................................................283
CONSULT-II Functions (BCM) ..............................284
CONSULT-II BASIC OPERATION .....................284
WORK SUPPORT (INT LAMP) .........................285
DATA MONITOR (INT LAMP) ............................286
ACTIVE TEST (INT LAMP) ................................287
WORK SUPPORT (BATTERY SAVER) .............287
DATA MONITOR (BATTERY SAVER) ...............287
ACTIVE TEST (BATTERY SAVER) ...................288
Interior Room Lamp Control Does Not Operate ....289
Map Lamp .............................................................291
BULB REPLACEMENT ......................................291
REMOVAL AND INSTALLATION .......................291
Personal Lamp ......................................................291
BULB REPLACEMENT ......................................291
REMOVAL AND INSTALLATION .......................291
Foot Lamp (Driver Side) .......................................
.292
BULB REPLACEMENT ......................................292
REMOVAL AND INSTALLATION .......................292
Foot Lamp (Passenger Side) ................................293
BULB REPLACEMENT ......................................293
REMOVAL AND INSTALLATION .......................293
Vanity Mirror Lamp ................................................293
BULB REPLACEMENT ......................................293
Step Lamp .............................................................294
BULB REPLACEMENT ......................................294
REMOVAL AND INSTALLATION .......................294
Kicking Plate Illumination .....................................
.294
BULB REPLACEMENT ......................................294
REMOVAL AND INSTALLATION .......................294
Trunk Room Lamp (Upper/Lower) ........................294
BULB REPLACEMENT ......................................294
REMOVAL AND INSTALLATION .......................294
ILLUMINATION ........................................................295
System Description ...............................................295
OUTLINE ...........................................................295
Page 4434 of 5621

PRECAUTIONS
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General Precautions for Service OperationsNKS003NX
Never work with wet hands.
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).
Turn the lighting switch OFF before disconnecting and connect-
ing the connector.
When turning the xenon headlamp on and while it is illuminated,
never touch the harness, bulb, and socket of the headlamp.
When checking the headlamp on/off operation, check it on vehi-
cle and with the power connected to the vehicle-side connector.
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.
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.
When the bulb has burned out, wrap it in a thick vinyl bag and
discard. Do not break the bulb.
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.
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.)
Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.
PKIA0183E
EL-3422D
Page 4445 of 5621

LT-18
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
Revision: 2006 January2006 M35/M45
Terminals and Reference Values for BCMNKS003O4
CAUTION:
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.
Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position.
Wiper dial position can be confirmed on CONSULT-II. Refer to LT-23, "
DATA MONITOR" .
Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
2L/RCombination
switch input 5ONLighting, turn, wiper
switch
(Wiper dial position 4)Lighting switch HI beam
(Operates only HI beam
switch)
Approx. 1.0V
Lighting switch 2ND
Approx. 2.0V
OFF Approx. 0V
3 O/LCombination
switch input 4ONLighting, turn, wiper
switch
(Wiper dial position 4)
Any of several con-
ditions below
Lighting switch 2ND
Lighting switch
PASSING (Operates
only PASSING switch)
Approx. 1.0V
OFF Approx. 0V
11 VIgnition switch
(ACC)ACC — Battery voltage
PKIB4957J
PKIB4953J
PKIB4957J
Page 4447 of 5621

LT-20
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
Revision: 2006 January2006 M35/M45
Terminals and Reference Values for IPDM E/RNKS003O5
How to Perform Trouble DiagnosesNKS003O6
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 8 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 2 0 , "
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
Preliminary CheckNKS003O7
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSE
Check for blown fuses.
Refer to LT-13, "Wiring Diagram — H/LAMP —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
20 R Headlamp low (RH) ONLighting switch 2ND
positionOFF Approx. 0V
ON Battery voltage
27 BR Headlamp high (RH) ONLighting switch HIGH or
PASSING positionOFF Approx. 0V
ON Battery voltage
28 R/Y Headlamp high (LH) ONLighting switch HIGH or
PASSING positionOFF Approx. 0V
ON Battery voltage
30 R/B Headlamp low (LH) ONLighting switch 2ND
positionOFF Approx. 0V
ON Battery voltage
38 B Ground ON — Approx. 0V
49 L CAN
H — — —
50 P CAN
L — — —
51 B Ground ON — Approx. 0V
Unit Power source Fuse and fusible link No.
BCMBatteryF
21
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6
IPDM E/R Battery71
72
74
76
78
86
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HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
LT-21
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2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between BCM and
fuse.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Check harness ground circuit.
Terminal Ignition switch position
(+)
(
)OFFACCON
BCM
connectorTerminal
M111
GroundApprox. 0VBattery
voltageBattery
voltage
38 Approx. 0V Approx. 0VBattery
voltage
M242Battery
voltageBattery
voltageBattery
voltage
55Battery
voltageBattery
voltageBattery
voltage
PKIA5204E
BCM connector Terminal
GroundContinuity
M2 52 Yes
SKIB5125E
Page 4449 of 5621

LT-22
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
Revision: 2006 January2006 M35/M45
CONSULT-II Functions (BCM)NKS003O8
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
NOTE:
Cannot change the setting for headlamp.
CONSULT-II BASIC OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, and then turn
ignition switch ON.
2. Touch “START (NISSAN BASED VHCL)”.
3. Touch “BCM” on “SELECT SYSTEM” screen.
If “BCM” is not indicated, check power supply and ground of
BCM. If it is normal, refer to GI-40, "
CONSULT-II Data Link Con-
nector (DLC) Circuit" .
BCM diagnosis part Diagnosis mode Description
HEADLAMPWORK SUPPORT
Changes the setting for each function.
NOTE
DATA MONITOR Displays BCM input data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
BCMSELF-DIAG RESULTS BCM performs self-diagnosis of CAN communication.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
SKIB3794E
BCIA0029E
BCIA0030E
Page 4451 of 5621

LT-24
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
Revision: 2006 January2006 M35/M45
NOTE:
This item is displayed, but cannot be monitored.
ACTIVE TEST
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching “BACK” deactivates the operation.
Display Item List
NOTE:
This item is displayed, but cannot be tested.DOOR SW - RL “ON/OFF”Displays status of the rear door as judged from the rear door switch (LH) signal. (door is open:
ON/door is closed: OFF)
BACK DOOR SW
NOTE “OFF” —
OPTICAL SENSOR “0 - 5V” Displays “outside brightness (close to 5V when light/close to 0V when dark)” judged from opti-
cal sensor signal.
VEHICLE SPEED “km/h” Displays vehicle speed as judged from vehicle speed signal. Monitor item Contents
Test item Description
TAIL LAMP Allows tail lamp relay to operate by switching ON-OFF.
FR FOG LAMP Allows front fog lamp relay to operate by switching ON-OFF.
DAYTIME RUNNING LIGHT
NOTE—
HEAD LAMP (HI, LO) Allows headlamp relay to operate by switching ON-OFF.