Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti M45 M35 Y50 2006-2007 Approved M45_M35-Y50-2007 lt
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LIGHTING SYSTEM
K ELECTRICAL
A
SECTION
LIGHTING SYSTEM
LT B
C
D
E
CONTENTS
PRECAUTIONS ......................................................... 6 . Headlamps Do Not Turn OFF ................................ 36 . F
Precautions for Supplemental Restraint System Aiming Adjustment ................................................. 37 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- PREPARATION BEFORE ADJUSTING ............. 37 .
SIONER" ................................................................. 6
. LOW BEAM AND HIGH BEAM .......................... 37 . G
General Precautions for Service Operations ........... 7 . ADJUSTMENT USING AN ADJUSTMENT
HEADLAMP (FOR USA) - CONVENTIONAL TYPE ..... 8 - SCREEN (LIGHT/DARK BORDERLINE) ........... 38 .
Component Parts and Harness Connector Location 8 ..... Bulb Replacement ................................................. 38 .
H
System Description ................................................. 8 . HEADLAMP (INNER) HIGH BEAM .................... 38 .
OUTLINE .............................................................. 9
. HEADLAMP (OUTER) LOW BEAM ................... 39 .
HEADLAMP OPERATION ................................. 10 . PARKING LAMP LAMP ...................................... 39 .
COMBINATION SWITCH READING FUNCTION ....11 FRONT TURN SIGNAL LAMP ........................... 39 . I
EXTERIOR LAMP BATTERY SAVER CONTROL ....11 FRONT SIDE MARKER LAMP .......................... 39 .
AUTO LIGHT OPERATION .................................11 . Removal and Installation ....................................... 40 .
CAN Communication System Description ..............11 . REMOVAL .......................................................... 40. J
CAN Communication Unit ......................................11 . INSTALLATION .................................................. 40 .
Schematic ............................................................. 12
. Disassembly and Assembly ................................... 41 .
Wiring Diagram -- H/LAMP -- .............................. 13 . DISASSEMBLY .................................................. 41 .
LT
Terminals and Reference Values for BCM ............ 19 . ASSEMBLY ........................................................ 41 .
Terminals and Reference Values for IPDM E/R .... 21 . HEADLAMP (FOR USA) - XENON TYPE - ............. 42 .
How to Perform Trouble Diagnoses ...................... 21 . Component Parts and Harness Connector Location 42 ...
Preliminary Check ................................................. 22 . System Description ................................................ 42 . L
CHECK POWER SUPPLY AND GROUND CIR- OUTLINE ............................................................ 43
.
CUIT ................................................................... 22
. HEADLAMP OPERATION .................................. 44 .
CONSULT-II Functions (BCM) .............................. 23 . COMBINATION SWITCH READING FUNCTION 45 ... M
CONSULT-II BASIC OPERATION ...................... 23 . EXTERIOR LAMP BATTERY SAVER CONTROL 45 ...
DATA MONITOR ................................................ 23 . AUTO LIGHT OPERATION ................................ 45 .
ACTIVE TEST .................................................... 24 . XENON HEADLAMP .......................................... 45 .
CONSULT-II Functions (IPDM E/R) ...................... 25 . CAN Communication System Description ............. 45 .
CONSULT-II BASIC OPERATION ...................... 25 . CAN Communication Unit ...................................... 45 .
DATA MONITOR ................................................ 25 . Schematic .............................................................. 46
.
ACTIVE TEST .................................................... 25 . Wiring Diagram -- H/LAMP -- .............................. 47 .
Headlamp High Beam Does Not Illuminate (Both Terminals and Reference Values for BCM ............. 53 .
Sides) .................................................................... 26
. Terminals and Reference Values for IPDM E/R ..... 55 .
Headlamp High Beam Does Not Illuminate (One How to Perform Trouble Diagnoses ...................... 55 .
Side) ...................................................................... 29
. Preliminary Check ................................................. 56 .
High Beam Indicator Lamp Does Not Illuminate ... 30 CHECK POWER SUPPLY AND GROUND CIR-
Headlamp Low Beam Does Not Illuminate (Both CUIT ................................................................... 56
.
Sides) .................................................................... 31
. CONSULT-II Functions (BCM) ............................... 57 .
Headlamp Low Beam Does Not Illuminate (One CONSULT-II BASIC OPERATION ...................... 57 .
Side) ...................................................................... 34
. DATA MONITOR ................................................ 57 .
Revision: 2007 April LT-1 2007 M35/M45
ACTIVE TEST .................................................... 58 . DATA MONITOR .................................................94 .
CONSULT-II Functions (IPDM E/R) ....................... 59 . ACTIVE TEST .....................................................95 .
CONSULT-II BASIC OPERATION ...................... 59 . CONSULT-II Functions (IPDM E/R) .......................96 .
DATA MONITOR ................................................. 59 . CONSULT-II BASIC OPERATION ......................96 .
ACTIVE TEST .................................................... 59 . DATA MONITOR .................................................96 .
Headlamp High Beam Does Not Illuminate (Both ACTIVE TEST .....................................................96 .
Sides) .................................................................... 60
. Daytime Light Control Does Not Operate Properly
Headlamp High Beam Does Not Illuminate (One (Normal Headlamps Operate Properly) .................97 .
Side) ...................................................................... 63
. Headlamp High Beam Does Not Illuminate (Both
High Beam Indicator Lamp Does Not Illuminate .... 64 . Sides) ................................................................... 100
.
Headlamp Low Beam Does Not Illuminate (Both RH High Beam Does Not Illuminate But LH High
Sides) .................................................................... 65
. Beam Illuminates ................................................. 104 .
Headlamp Low Beam Does Not Illuminate (One LH High Beam Does Not Illuminate But RH High
Side) ...................................................................... 68
. Beam Illuminates ................................................. 106 .
Headlamps Do Not Turn OFF ................................ 70 . Headlamp Low Beam Does Not Illuminate (Both
General Information for Xenon Headlamp Trouble Sides) ................................................................... 108
.
Diagnosis ............................................................... 71
. Headlamp Low Beam Does Not Illuminate (One
Caution: ................................................................. 71
. Side) ..................................................................... 111
.
Xenon Headlamp Trouble Diagnosis ..................... 71 . Headlamps Do Not Turn OFF .............................. 113 .
Aiming Adjustment ................................................. 72 . General Information for Xenon Headlamp Trouble
PREPARATION BEFORE ADJUSTING ............. 72 . Diagnosis ............................................................. 114
.
LOW BEAM AND HIGH BEAM .......................... 72 . CAUTION: ............................................................ 114 .
ADJUSTMENT USING AN ADJUSTMENT Xenon Headlamp Trouble Diagnosis ................... 114 .
SCREEN (LIGHT/DARK BORDERLINE) ........... 73 . Aiming Adjustment ............................................... 114 .
Bulb Replacement ................................................. 73 . Bulb Replacement ................................................ 114 .
HEADLAMP (INNER) HIGH BEAM .................... 73 . Removal and Installation ...................................... 114 .
HEADLAMP (OUTER) LOW BEAM ................... 74 . Disassembly and Assembly ................................. 114 .
PARKING LAMP ................................................. 74 . AUTO LIGHT SYSTEM .......................................... 115 .
FRONT TURN SIGNAL LAMP ........................... 74 . Component Parts and Harness Connector Location 115 .
FRONT SIDE MARKER LAMP ........................... 74 . System Description .............................................. 115 .
Removal and Installation ....................................... 75 . OUTLINE .......................................................... 115 .
REMOVAL .......................................................... 75 . COMBINATION SWITCH READING FUNCTION 116 .
INSTALLATION ................................................... 75 . EXTERIOR LAMP BATTERY SAVER CONTROL 116 .
Disassembly and Assembly ................................... 76 . DELAY TIMER FUNCTION ............................... 116 .
DISASSEMBLY .................................................. 76 . CAN Communication System Description ........... 116 .
ASSEMBLY ........................................................ 77 . CAN Communication Unit .................................... 116 .
HEADLAMP (FOR CANADA) - DAYTIME LIGHT Major Components and Functions ....................... 116 .
SYSTEM - ................................................................. 78
. Schematic ............................................................ 117.
Component Parts and Harness Connector Location 78 ... Wiring Diagram -- AUTO/L -- ............................. 118 .
System Description ................................................ 78 . Terminals and Reference Values for BCM ........... 124 .
OUTLINE ............................................................ 79. Terminals and Reference Values for IPDM E/R ... 126 .
HEADLAMP OPERATION .................................. 80 . How to Perform Trouble Diagnoses ..................... 126 .
DAYTIME LIGHT OPERATION .......................... 81 . Preliminary Check ................................................ 127 .
COMBINATION SWITCH READING FUNCTION 81 ... SETTING CHANGE FUNCTIONS .................... 127 .
AUTO LIGHT OPERATION ................................ 81 . CHECK POWER SUPPLY AND GROUND CIR-
CAN Communication System Description ............. 81 . CUIT .................................................................. 127
.
CAN Communication Unit ...................................... 81 . CONSULT-II Functions (BCM) ............................. 128 .
Schematic .............................................................. 82
. CONSULT-II BASIC OPERATION .................... 128 .
Wiring Diagram -- DTRL -- .................................. 83 . WORK SUPPORT ............................................ 128 .
Terminals and Reference Values for BCM ............. 89 . DATA MONITOR ............................................... 129 .
Terminals and Reference Values for IPDM E/R ..... 91 . ACTIVE TEST ................................................... 130 .
How to Perform Trouble Diagnosis ........................ 91 . Symptom Chart .................................................... 130 .
Preliminary Check ................................................. 92 . Lighting Switch Inspection ................................... 131 .
INSPECTION FOR POWER SUPPLY AND Optical Sensor System Inspection ....................... 131 .
GROUND CIRCUIT ............................................ 92 . Removal and Installation for Optical Sensor ........ 133 .
INSPECTION FOR PARKING BRAKE SWITCH REMOVAL ......................................................... 133 .
CIRCUIT ............................................................. 93
. INSTALLATION ................................................. 133 .
CONSULT-II Functions (BCM) ............................... 94 . ACTIVE AFS ........................................................... 134 .
CONSULT-II BASIC OPERATION ...................... 94 . Component Parts and Harness Connector Location .134
Revision: 2007 April LT-2 2007 M35/M45
System Description ............................................. 134 . FRONT FOG LAMP ............................................... 194 .
AFS (ADAPTIVE FRONT-LIGHTING SYSTEM) 135 . Component Parts and Harness Connector Location 194 . A
HEADLAMP AUTO AIMING ............................. 136 . System Description .............................................. 194 .
OUTLINE .......................................................... 136 . OUTLINE .......................................................... 195
.
AFS OPERATION ............................................ 137 . COMBINATION SWITCH READING FUNCTION 196 . B
HEADLAMP AUTO AIMING OPERATION ....... 139 . EXTERIOR LAMP BATTERY SAVER CONTROL 196 .
CAN COMMUNICATION SYSTEM DESCRIP- CAN Communication System Description ........... 196 .
TION ................................................................. 139
. CAN Communication Unit .................................... 196 .
CAN COMMUNICATION UNIT ........................ 139 . Schematic ............................................................ 197
. C
Component Parts Description ............................. 140 . Wiring Diagram -- F/FOG -- ............................... 198 .
AFS CONTROL UNIT ...................................... 140 . Terminals and Reference Values for BCM ........... 202 .
SWIVEL ACTUATOR ....................................... 140 . Terminals and Reference Values for IPDM E/R ... 203 . D
AIMING MOTOR .............................................. 140 . How to Perform Trouble Diagnoses .................... 203 .
AFS SWITCH ................................................... 141 . Preliminary Check ............................................... 203 .
HEIGHT SENSOR ........................................... 141 . CHECK POWER SUPPLY AND GROUND CIR- E
STEERING ANGLE SENSOR ......................... 141 . CUIT ................................................................. 203
.
IPDM E/R ......................................................... 141 . CONSULT-II Functions (BCM) ............................. 204 .
ECM ................................................................. 141
. CONSULT-II Functions (IPDM E/R) ..................... 204 .
TCM ................................................................. 141
. Front Fog Lamps Do Not Illuminate (Both Sides) . 205 F
UNIFIED METER AND A/C AMP. .................... 141 . Front Fog Lamp Does Not Illuminate (One Side) . 208
COMBINATION METER .................................. 141 . Front Fog Lamps Do Not Turn OFF ..................... 209 .
Schematic ........................................................... 142 . Aiming Adjustment ............................................... 210 . G
Wiring Diagram -- AFS -- .................................. 143 . Bulb Replacement ............................................... 211 .
Terminals and Reference Values for AFS Control Removal and Installation ..................................... 211 .
Unit ...................................................................... 149
. REMOVAL ........................................................ 211 . H
How to Proceed with Trouble Diagnosis ............. 151 . INSTALLATION ................................................ 211 .
Preliminary Check ............................................... 151 . TURN SIGNAL AND HAZARD WARNING LAMPS. 212
CONSULT-II Function (ADAPTIVE LIGHT) ......... 152 . Component Parts and Harness Connector Location 212 .
I
CONSULT-II BASIC OPERATION .................... 152 . System Description .............................................. 212 .
WORK SUPPORT (STEERING ANGLE SEN- TURN SIGNAL OPERATION ........................... 212 .
SOR ADJUSTMENT) ....................................... 152 . HAZARD LAMP OPERATION .......................... 213 .
WORK SUPPORT (LEVELIZER ADJUSTMENT) COMBINATION SWITCH READING FUNCTION 214 . J
. 152 CAN Communication System Description ........... 214 .
SELF-DIAG RESULTS ..................................... 153 . CAN Communication Unit .................................... 214 .
DATA MONITOR .............................................. 157 . Schematic ............................................................ 215
. LT
ACTIVE TEST .................................................. 159 . Wiring Diagram -- TURN -- ................................ 216 .
Symptom Chart ................................................... 160 . Terminals and Reference Values for BCM ........... 220 .
DTC B2503 SWIVEL ACTUATOR RH ................ 161 . How to Perform Trouble Diagnoses .................... 221 . L
DTC B2504 SWIVEL ACTUATOR LH ................. 168 . Preliminary Check ............................................... 222 .
DTC B2514 HI SEN UNUSUAL RR .................... 175 . CHECK POWER SUPPLY AND GROUND CIR-
DTC B2521 ECU CIRC ....................................... 179 . CUIT ................................................................. 222
.
AFS Operation Check (Function Test) ................ 182 . CONSULT-II Functions (BCM) ............................. 223 . M
Auto Aiming Operation Check (Function Test) .... 184 . CONSULT-II BASIC OPERATION .................... 223 .
AFS Switch Does Not Operate ............................ 186 . DATA MONITOR .............................................. 223 .
Auto Aiming Does Not Operate (Check Aiming ACTIVE TEST .................................................. 223 .
Motor System Circuit) .......................................... 188 . Turn Signal Lamp Does Not Operate .................. 224 .
AFS OFF Indicator Does Not Operate ................ 191 . Hazard Warning Lamp Does Not Operate But Turn
Removal and Installation of Steering Angle Sensor 191 . Signal Lamp Operate ........................................... 226 .
Removal and Installation of Front Combination Turn Signal Indicator Lamp Does Not Operate ... 227 .
Lamp ................................................................... 191
. Bulb Replacement/Removal and Installation of Side
Removal and Installation of AFS Control Unit ..... 192 . Turn Signal Lamp ................................................ 229 .
REMOVAL ........................................................ 192 . REMOVAL ........................................................ 229 .
INSTALLATION ................................................ 192 . INSTALLATION ................................................ 229 .
Removal and Installation of AFS Switch ............. 192 . Bulb Replacement (Front Turn Signal Lamp) ...... 229 .
REMOVAL ........................................................ 192 . Bulb Replacement (Rear Turn Signal Lamp) ....... 229 .
INSTALLATION ................................................ 192 . Removal and Installation of Front Turn Signal Lamp 229 .
Removal and Installation of Height Sensor ......... 193 . Removal and Installation of Rear Turn Signal Lamp 229 .
REMOVAL ........................................................ 193 . LIGHTING AND TURN SIGNAL SWITCH ............. 230 .
INSTALLATION ................................................ 193 . Removal and Installation ..................................... 230 .
Revision: 2007 April LT-3 2007 M35/M45
REMOVAL ........................................................ 230 . INSTALLATION ................................................. 264 .
INSTALLATION ................................................. 230 . Front Parking (Clearance) Lamp .......................... 264 .
Switch Circuit Inspection ..................................... 230 . BULB REPLACEMENT ..................................... 264 .
HAZARD SWITCH ................................................. 231 . REMOVAL AND INSTALLATION ...................... 264 .
Removal and Installation ..................................... 231 . REAR COMBINATION LAMP ................................ 265 .
REMOVAL ........................................................ 231 . Bulb Replacement ................................................ 265 .
COMBINATION SWITCH ....................................... 232 . REAR TURN SIGNAL LAMP BULB, STOP/TAIL
Wiring Diagram -- COMBSW -- ......................... 232 . LAMP BULB ...................................................... 265 .
Combination Switch Reading Function ................ 233 . Removal and Installation ...................................... 265 .
Terminals and Reference Values for BCM ........... 233 . REMOVAL ......................................................... 265 .
CONSULT-II Functions (BCM) ............................. 238 . INSTALLATION ................................................. 265 .
CONSULT-II BASIC OPERATION .................... 238 . INTERIOR ROOM LAMP ....................................... 266 .
DATA MONITOR ............................................... 238 . Component Parts and Harness Connector Location .266
Combination Switch Inspection ........................... 239 . System Description .............................................. 266 .
Removal and Installation ..................................... 241 . ROOM LAMP TIMER BASIC OPERATION ...... 266 .
STOP LAMP ........................................................... 242. POWER SUPPLY AND GROUND .................... 267 .
Wiring Diagram -- STOP LAMP -- ..................... 242 . SWITCH OPERATION ...................................... 268 .
High-Mounted Stop Lamp .................................... 244 . ROOM LAMP TIMER OPERATION .................. 269 .
BULB REPLACEMENT, REMOVAL AND CONDITIONS FOR CANCELING TIMER ......... 270 .
INSTALLATION ................................................. 244 . ROOM LAMP TIMER INAPPLICABLE LAMPS
Stop Lamp ........................................................... 244
. OPERATION ..................................................... 270 .
BULB REPLACEMENT .................................... 244 . INTERIOR ROOM LAMP BATTERY SAVER
REMOVAL AND INSTALLATION ...................... 244 . FUNCTION ....................................................... 270 .
BACK-UP LAMP .................................................... 245 . Schematic ............................................................ 271
.
Wiring Diagram -- B/LAMP -- ............................ 245 . Wiring Diagram -- ROOM/L -- ............................ 273 .
Bulb Replacement ............................................... 246 . Terminals and Reference Values for BCM ........... 280 .
Removal and Installation ..................................... 247 . How to Perform Trouble Diagnoses ..................... 281 .
REMOVAL ........................................................ 247 . Preliminary Check ................................................ 282 .
INSTALLATION ................................................. 247 . CHECK POWER SUPPLY AND GROUND CIR-
PARKING, LICENSE PLATE AND TAIL LAMPS ... 248 . CUIT .................................................................. 282
.
Component Parts and Harness Connector Location 248 . CONSULT-II Functions (BCM) ............................. 283 .
System Description .............................................. 248 . CONSULT-II BASIC OPERATION .................... 283 .
OUTLINE .......................................................... 248. WORK SUPPORT (INT LAMP) ........................ 283 .
OPERATION BY LIGHTING SWITCH .............. 249 . DATA MONITOR (INT LAMP) ........................... 284 .
COMBINATION SWITCH READING FUNCTION 249 . ACTIVE TEST (INT LAMP) ............................... 285 .
EXTERIOR LAMP BATTERY SAVER CONTROL 249 . WORK SUPPORT (BATTERY SAVER) ............ 285 .
CAN Communication System Description ........... 249 . DATA MONITOR (BATTERY SAVER) .............. 285 .
CAN Communication Unit .................................... 249 . ACTIVE TEST (BATTERY SAVER) .................. 286 .
Schematic ............................................................ 250
. Interior Room Lamp Control Does Not Operate ... 287 .
Wiring Diagram -- TAIL/L -- ............................... 251 . Map Lamp ............................................................ 289
.
Terminals and Reference Values for BCM ........... 256 . BULB REPLACEMENT ..................................... 289 .
Terminals and Reference Values for IPDM E/R ... 257 . REMOVAL AND INSTALLATION ...................... 289 .
How to Perform Trouble Diagnoses ..................... 257 . Personal Lamp ..................................................... 289 .
Preliminary Check ............................................... 257 . BULB REPLACEMENT ..................................... 289 .
CHECK POWER SUPPLY AND GROUND CIR- REMOVAL AND INSTALLATION ...................... 289 .
CUIT ................................................................. 257
. Foot Lamp (Driver Side) ....................................... 290 .
CONSULT-II Functions (BCM) ............................. 258 . BULB REPLACEMENT ..................................... 290 .
CONSULT-II Functions (IPDM E/R) ..................... 258 . REMOVAL AND INSTALLATION ...................... 290 .
Parking, License Plate and Tail Lamps Do Not Illu- Foot Lamp (Passenger Side) ............................... 291 .
minate .................................................................. 259
. BULB REPLACEMENT ..................................... 291 .
Parking, License Plate and Tail Lamps Do Not Turn REMOVAL AND INSTALLATION ...................... 291 .
OFF (After Approx. 10 Minutes) .......................... 263 . Vanity Mirror Lamp ............................................... 291 .
License Plate Lamp ............................................. 264 . BULB REPLACEMENT ..................................... 291 .
BULB REPLACEMENT .................................... 264 . Step Lamp ............................................................ 292
.
Removal and Installation ..................................... 264 . BULB REPLACEMENT ..................................... 292 .
REMOVAL ........................................................ 264 . REMOVAL AND INSTALLATION ...................... 292 .
Kicking Plate Illumination ..................................... 292 .
BULB REPLACEMENT ..................................... 292 .
Revision: 2007 April LT-4 2007 M35/M45
REMOVAL AND INSTALLATION ..................... 292 . BULB REPLACEMENT, REMOVAL AND
Trunk Room Lamp (Upper/Lower) ....................... 292 . INSTALLATION ................................................ 311 . A
BULB REPLACEMENT .................................... 292 . Cigarette Lighter Illumination ............................... 311 .
REMOVAL AND INSTALLATION ..................... 292 . BULB REPLACEMENT, REMOVAL AND
ILLUMINATION ...................................................... 293
. INSTALLATION ................................................ 311 . B
System Description ............................................. 293. Front Ashtray Illumination .................................... 312 .
OUTLINE .......................................................... 293
. BULB REPLACEMENT, REMOVAL AND
ILLUMINATION OPERATION BY LIGHTING INSTALLATION ................................................ 312 .
SWITCH ........................................................... 294
. Rear Ashtray Illumination .................................... 312 . C
EXTERIOR LAMP BATTERY SAVER CONTROL 295 . REMOVAL AND INSTALLATION ..................... 312 .
CAN Communication System Description ........... 295 . INSTALLATION ................................................ 312 .
CAN Communication Unit ................................... 295 . BULB SPECIFICATIONS ....................................... 313 . D
Schematic ........................................................... 296
. Headlamp ............................................................ 313
.
Wiring Diagram -- ILL -- .................................... 298 . Exterior Lamp ...................................................... 313
.
Glove Box Lamp ...................................................311
. Interior Lamp/Illumination .................................... 313 . E
F
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Revision: 2007 April LT-5 2007 M35/M45
PRECAUTIONS
PRECAUTIONS PFP:00011
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" NKS003NW
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
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
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:
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.
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.
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.
Revision: 2007 April LT-6 2007 M35/M45
PRECAUTIONS
General Precautions for Service Operations NKS003NX
A
q Never work with wet hands.
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 B
headlamp (including lamp bulb).
q Turn the lighting switch OFF before disconnecting and connect-
ing the connector. C
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- D
PKIB7344E
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. E
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 head-
lamp bulb out of the headlamp housing. Doing so can cause fire and harm your eyes. F
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 perfor-
mance of the lens and reflector (dirt, clouding). Always prepare a new bulb and have it on hand when G
replacing the bulb.
q When adjusting the headlamp aiming, turn the aiming adjustment 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.) H
q Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.
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Revision: 2007 April LT-7 2007 M35/M45
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
HEADLAMP (FOR USA) - CONVENTIONAL TYPE - PFP:26010
Component Parts and Harness Connector Location NKS003NY
PKIC1983E
System Description NKS003NZ
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) across the CAN communication lines. The CPU
(central 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.
Revision: 2007 April LT-8 2007 M35/M45
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
OUTLINE
Power is supplied at all times A
q to headlamp high relay, located in IPDM E/R and
q to headlamp low relay, located in IPDM E/R, from battery direct,
B
q through 15A fuse (No. 71, located in IPDM E/R)
q to CPU, located in IPDM E/R,
q through 15A fuse (No. 78, located in IPDM E/R) C
q to CPU, located in IPDM E/R,
q through 50A fusible link (letter F, located in fuse and fusible link block)
q to BCM terminal 55, D
q through 10A fuse [No. 21, located in fuse block (J/B)]
q to BCM terminal 42 and
q to combination meter terminal 23, E
q through 10A fuse [No. 19, located in fuse block (J/B)]
q to unified meter and A/C amp. terminal 54,
F
q through 10A fuse [No. 22, located in fuse block (J/B)]
q to key slot terminal 1.
When the ignition switch is in the ON or START position, power is supplied G
q to CPU, located in IPDM E/R,
q through 15A fuse [No. 1, located in fuse block (J/B)]
q to BCM terminal 38, H
q through 10A fuse [No. 14, located in fuse block (J/B)]
q to combination meter terminal 12,
q through 10A fuse [No. 12, located in fuse block (J/B)] I
q to unified meter and A/C amp. terminal 53.
When the ignition switch is in the ACC or ON position, power is supplied
J
q through 10A fuse [No. 6, located in fuse block (J/B)]
q to BCM terminal 11.
Ground is supplied LT
q to BCM terminal 52
q to combination meter terminals 9, 10, and 11
q to unified meter and A/C amp. terminals 55 and 71 L
q to push-button ignition switch (push switch) terminal 1
q to key slot terminal 8
q through grounds M16 and M70, M
q to IPDM E/R terminals 38 and 51
q through grounds E22 and E43.
Revision: 2007 April LT-9 2007 M35/M45
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
HEADLAMP OPERATION
Low Beam Operation
With the lighting switch in 2ND position, the BCM receives input signal requesting the headlamps to illuminate.
This input signal is communicated to the IPDM E/R across the CAN communication lines. The CPU located in
the IPDM E/R controls the headlamp low relay coil, which when energized, directs power
q through 15A fuse (No. 76, located in IPDM E/R)
q through IPDM E/R terminal 20
q to front combination lamp RH terminal 8,
q through 15A fuse (No. 86, located in IPDM E/R)
q through IPDM E/R terminal 30
q to front combination lamp LH terminal 8.
Ground is supplied
q to front combination lamp RH terminal 4
q to front combination lamp LH terminal 4
q through grounds E22 and E43.
With power and ground supplied, low beam headlamps illuminate.
High Beam Operation/Flash-to-Pass Operation
With the lighting switch in 2ND position and placed in HIGH or PASS position, the BCM receives input signal
requesting the headlamp high beams and low beams to illuminate. This input signal is communicated to the
IPDM E/R across the CAN communication lines. The CPU located in the IPDM E/R controls the headlamp
high relay coil and low relay coil, which when energized, directs power
q through 15A fuse (No. 76, located in IPDM E/R)
q through IPDM E/R terminal 20
q to front combination lamp RH terminal 8,
q through 15A fuse (No. 86, located in IPDM E/R)
q through IPDM E/R terminal 30
q to front combination lamp LH terminal 8,
q through 10A fuse (No. 72, located in IPDM E/R)
q through IPDM E/R terminal 27
q to front combination lamp RH terminal 6,
q through 10A fuse (No. 74, located in IPDM E/R)
q through IPDM E/R terminal 28
q to front combination lamp LH terminal 6.
Ground is supplied
q to front combination lamp RH terminal 4
q to front combination lamp LH terminal 4
q to front combination lamp RH terminal 2
q to front combination lamp LH terminal 2
q through grounds E22 and E43.
With power and ground supplied, the high beam and low beam headlamps illuminate.
The unified meter and A/C amp. that received the high beam request signal by BCM across the CAN commu-
nication makes a high beam indicator lamp turn on in the combination meter.
Revision: 2007 April LT-10 2007 M35/M45
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" . A
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned B
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
C
AUTO LIGHT OPERATION
Refer to LT-115, "System Description" .
CAN Communication System Description NKS003O0
D
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other E
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. F
CAN Communication Unit NKS003O1
Refer to LAN-50, "CAN System Specification Chart" . G
H
I
J
LT
L
M
Revision: 2007 April LT-11 2007 M35/M45
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
Schematic NKS003O2
TKWT3350E
Revision: 2007 April LT-12 2007 M35/M45
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
Wiring Diagram -- H/LAMP -- NKS003O3
A
B
C
D
E
F
G
H
I
J
LT
L
M
TKWT3351E
Revision: 2007 April LT-13 2007 M35/M45
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
TKWT5252E
Revision: 2007 April LT-14 2007 M35/M45
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
A
B
C
D
E
F
G
H
I
J
LT
L
M
TKWT5253E
Revision: 2007 April LT-15 2007 M35/M45
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
TKWT3354E
Revision: 2007 April LT-16 2007 M35/M45
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
A
B
C
D
E
F
G
H
I
J
LT
L
M
TKWT5061E
Revision: 2007 April LT-17 2007 M35/M45
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
TKWT5274E
Revision: 2007 April LT-18 2007 M35/M45
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
Terminals and Reference Values for BCM NKS003O4
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-238, "DATA MONITOR" .
Measuring condition C
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