control unit INFINITI M35 2007 Factory Service Manual

LAN-98
[CAN]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of low tire pressure warning control unit.
2. Check the resistance between the low tire pressure warning control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the low tire pressure warning control unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the low tire pressure warning control unit. Refer to WT-13,
"Schematic" .
OK or NG
OK >>
Present error: Replace the low tire pressure warning control unit. Refer to WT-40, "Low Tire
Pressure Warning Control Unit" .

Past error: Error was detected in the low tire pressure warning control unit branch line.
NG >> Repair the power supply and the ground circuit.
RAS Control Unit Branch Line CircuitNKS004H4
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the RAS control unit for damage, bend and loose connection (unit
side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of RAS control unit.
2. Check the resistance between the RAS control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Replace the body No. 2 harness.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the RAS control unit. Refer to STC-20, "
Schematic" .
OK or NG
OK >>
Present error: Replace the RAS control unit.

Past error: Error was detected in the RAS control unit branch line.
NG >> Repair the power supply and the ground circuit.
Low tire pressure warning control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
M19 15 16 Approx. 54 – 66
RAS control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
B476 1 8 Approx. 54 – 66

TROUBLE DIAGNOSIS
LAN-99
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Pre-Crash Seat Belt Control Unit Branch Line CircuitNKS004H5
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the pre-crash seat belt control unit for damage, bend and loose
connection (unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of pre-crash seat belt control unit.
2. Check the resistance between the pre-crash seat belt control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Replace the body harness.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the pre-crash seat belt control unit. Refer to SB-6, "
Sche-
matic" .
OK or NG
OK >>
Present error: Replace the pre-crash seat belt control unit. Refer to SB-28, "Removal and
Installation of Pre-Crash Seat Belt Control Unit" .

Past error: Error was detected in the pre-crash seat belt control unit branch line.
NG >> Repair the power supply and the ground circuit.
Driver Seat Control Unit Branch Line CircuitNKS004GB
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (unit side and con-
nector side).
–Driver seat control unit connector
–Harness connector B202
–Harness connector B15
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
Pre-crash seat belt control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
B142 24 22 Approx. 54 – 66

LAN-100
[CAN]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of driver seat control unit.
2. Check the resistance between the driver seat control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Replace the body harness.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the driver seat control unit. Refer to SE-17, "
Schematic" .
OK or NG
OK >>
Present error: Replace the driver seat control unit.

Past error: Error was detected in the driver seat control unit branch line.
NG >> Repair the power supply and the ground circuit.
ABS Actuator and Electric Unit (Control Unit) Branch Line CircuitNKS004GM
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend
and loose connection (unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of ABS actuator and electric unit (control unit).
2. Check the resistance between the ABS actuator and electric unit (control unit) harness connector termi-
nals.
OK or NG
OK >> GO TO 3.
NG >> Repair the ABS actuator and electric unit (control unit) branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to
BRC-14, "
Schematic" .
OK or NG
OK >>
Present error: Replace the ABS actuator and electric unit (control unit). Refer to BRC-57,
"Removal and Installation" .

Past error: Error was detected in the ABS actuator and electric unit (control unit) branch line.
NG >> Repair the power supply and the ground circuit.
Driver seat control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
B204 3 19 Approx. 54 – 66
ABS actuator and electric unit (control unit) harness connector
Resistance (Ω)
Connector No. Terminal No.
E30 35 14 Approx. 54 – 66

LT-1
LIGHTING SYSTEM
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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 ............. 19
Terminals and Reference Values for IPDM E/R ..... 21
How to Perform Trouble Diagnoses ....................... 21
Preliminary Check .................................................. 22
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 22
CONSULT-II Functions (BCM) ............................... 23
CONSULT-II BASIC OPERATION ....................... 23
DATA MONITOR ................................................. 23
ACTIVE TEST ..................................................... 24
CONSULT-II Functions (IPDM E/R) ....................... 25
CONSULT-II BASIC OPERATION ....................... 25
DATA MONITOR ................................................. 25
ACTIVE TEST ..................................................... 25
Headlamp High Beam Does Not Illuminate (Both
Sides) ..................................................................... 26
Headlamp High Beam Does Not Illuminate (One
Side) ....................................................................... 29
High Beam Indicator Lamp Does Not Illuminate .... 30
Headlamp Low Beam Does Not Illuminate (Both
Sides) ..................................................................... 31
Headlamp Low Beam Does Not Illuminate (One
Side) ....................................................................... 34Headlamps Do Not Turn OFF ................................. 36
Aiming Adjustment .................................................. 37
PREPARATION BEFORE ADJUSTING .............. 37
LOW BEAM AND HIGH BEAM ........................... 37
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ............ 38
Bulb Replacement .................................................. 38
HEADLAMP (INNER) HIGH BEAM ..................... 38
HEADLAMP (OUTER) LOW BEAM .................... 39
PARKING LAMP LAMP ....................................... 39
FRONT TURN SIGNAL LAMP ............................ 39
FRONT SIDE MARKER LAMP ........................... 39
Removal and Installation ........................................ 40
REMOVAL ........................................................... 40
INSTALLATION ................................................... 40
Disassembly and Assembly .................................... 41
DISASSEMBLY ................................................... 41
ASSEMBLY ......................................................... 41
HEADLAMP (FOR USA) - XENON TYPE - .............. 42
Component Parts and Harness Connector Location ... 42
System Description ................................................. 42
OUTLINE ............................................................. 43
HEADLAMP OPERATION ................................... 44
COMBINATION SWITCH READING FUNCTION ... 45
EXTERIOR LAMP BATTERY SAVER CONTROL ... 45
AUTO LIGHT OPERATION ................................. 45
XENON HEADLAMP ........................................... 45
CAN Communication System Description .............. 45
CAN Communication Unit ....................................... 45
Schematic ............................................................... 46
Wiring Diagram — H/LAMP — ............................... 47
Terminals and Reference Values for BCM .............. 53
Terminals and Reference Values for IPDM E/R ...... 55
How to Perform Trouble Diagnoses ....................... 55
Preliminary Check .................................................. 56
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 56
CONSULT-II Functions (BCM) ................................ 57
CONSULT-II BASIC OPERATION ....................... 57
DATA MONITOR ................................................. 57

LT-2Revision: 2007 April2007 M35/M45 ACTIVE TEST ..................................................... 58
CONSULT-II Functions (IPDM E/R) ........................ 59
CONSULT-II BASIC OPERATION ....................... 59
DATA MONITOR .................................................. 59
ACTIVE TEST ..................................................... 59
Headlamp High Beam Does Not Illuminate (Both
Sides) ..................................................................... 60
Headlamp High Beam Does Not Illuminate (One
Side) ....................................................................... 63
High Beam Indicator Lamp Does Not Illuminate ..... 64
Headlamp Low Beam Does Not Illuminate (Both
Sides) ..................................................................... 65
Headlamp Low Beam Does Not Illuminate (One
Side) ....................................................................... 68
Headlamps Do Not Turn OFF ................................. 70
General Information for Xenon Headlamp Trouble
Diagnosis ................................................................ 71
Caution: .................................................................. 71
Xenon Headlamp Trouble Diagnosis ...................... 71
Aiming Adjustment .................................................. 72
PREPARATION BEFORE ADJUSTING .............. 72
LOW BEAM AND HIGH BEAM ........................... 72
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ............ 73
Bulb Replacement .................................................. 73
HEADLAMP (INNER) HIGH BEAM ..................... 73
HEADLAMP (OUTER) LOW BEAM .................... 74
PARKING LAMP .................................................. 74
FRONT TURN SIGNAL LAMP ............................ 74
FRONT SIDE MARKER LAMP ............................ 74
Removal and Installation ........................................ 75
REMOVAL ........................................................... 75
INSTALLATION .................................................... 75
Disassembly and Assembly .................................... 76
DISASSEMBLY ................................................... 76
ASSEMBLY ......................................................... 77
HEADLAMP (FOR CANADA) - DAYTIME LIGHT
SYSTEM - .................................................................. 78
Component Parts and Harness Connector Location ... 78
System Description ................................................. 78
OUTLINE ............................................................. 79
HEADLAMP OPERATION ................................... 80
DAYTIME LIGHT OPERATION ........................... 81
COMBINATION SWITCH READING FUNCTION ... 81
AUTO LIGHT OPERATION ................................. 81
CAN Communication System Description .............. 81
CAN Communication Unit ....................................... 81
Schematic ............................................................... 82
Wiring Diagram — DTRL — ................................... 83
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 ....................... 94DATA MONITOR .................................................. 94
ACTIVE TEST ...................................................... 95
CONSULT-II Functions (IPDM E/R) ........................ 96
CONSULT-II BASIC OPERATION ....................... 96
DATA MONITOR .................................................. 96
ACTIVE TEST ...................................................... 96
Daytime Light Control Does Not Operate Properly
(Normal Headlamps Operate Properly) .................. 97
Headlamp High Beam Does Not Illuminate (Both
Sides) ....................................................................100
RH High Beam Does Not Illuminate But LH High
Beam Illuminates ..................................................104
LH High Beam Does Not Illuminate But RH High
Beam Illuminates ..................................................106
Headlamp Low Beam Does Not Illuminate (Both
Sides) ....................................................................108
Headlamp Low Beam Does Not Illuminate (One
Side) ...................................................................... 111
Headlamps Do Not Turn OFF ...............................113
General Information for Xenon Headlamp Trouble
Diagnosis ..............................................................114
CAUTION: .............................................................114
Xenon Headlamp Trouble Diagnosis ....................114
Aiming Adjustment ................................................114
Bulb Replacement .................................................114
Removal and Installation .......................................114
Disassembly and Assembly ..................................114
AUTO LIGHT SYSTEM ...........................................115
Component Parts and Harness Connector Location .115
System Description ...............................................115
OUTLINE ...........................................................115
COMBINATION SWITCH READING FUNCTION .116
EXTERIOR LAMP BATTERY SAVER CONTROL .116
DELAY TIMER FUNCTION ................................116
CAN Communication System Description ............116
CAN Communication Unit .....................................116
Major Components and Functions ........................116
Schematic .............................................................117
Wiring Diagram — AUTO/L — ..............................118
Terminals and Reference Values for BCM ............124
Terminals and Reference Values for IPDM E/R ....126
How to Perform Trouble Diagnoses ......................126
Preliminary Check .................................................127
SETTING CHANGE FUNCTIONS .....................127
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ...................................................................127
CONSULT-II Functions (BCM) ..............................128
CONSULT-II BASIC OPERATION .....................128
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

LT-3
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Revision: 2007 April2007 M35/M45 System Description .............................................. 134
AFS (ADAPTIVE FRONT-LIGHTING SYSTEM) . 135
HEADLAMP AUTO AIMING .............................. 136
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) ........................................ 152
WORK SUPPORT (LEVELIZER ADJUSTMENT)
. 152
SELF-DIAG RESULTS ...................................... 153
DATA MONITOR ............................................... 157
ACTIVE TEST ................................................... 159
Symptom Chart .................................................... 160
DTC B2503 SWIVEL ACTUATOR RH ................. 161
DTC B2504 SWIVEL ACTUATOR LH .................. 168
DTC B2514 HI SEN UNUSUAL RR ..................... 175
DTC B2521 ECU CIRC ........................................ 179
AFS Operation Check (Function Test) ................. 182
Auto Aiming Operation Check (Function Test) ..... 184
AFS Switch Does Not Operate ............................. 186
Auto Aiming Does Not Operate (Check Aiming
Motor System Circuit) ........................................... 188
AFS OFF Indicator Does Not Operate ................. 191
Removal and Installation of Steering Angle Sensor . 191
Removal and Installation of Front Combination
Lamp .................................................................... 191
Removal and Installation of AFS Control Unit ...... 192
REMOVAL ......................................................... 192
INSTALLATION ................................................. 192
Removal and Installation of AFS Switch .............. 192
REMOVAL ......................................................... 192
INSTALLATION ................................................. 192
Removal and Installation of Height Sensor .......... 193
REMOVAL ......................................................... 193
INSTALLATION ................................................. 193FRONT FOG LAMP ................................................194
Component Parts and Harness Connector Location .194
System Description ...............................................194
OUTLINE ...........................................................195
COMBINATION SWITCH READING FUNCTION .196
EXTERIOR LAMP BATTERY SAVER CONTROL .196
CAN Communication System Description ............196
CAN Communication Unit .....................................196
Schematic .............................................................197
Wiring Diagram — F/FOG — ................................198
Terminals and Reference Values for BCM ............202
Terminals and Reference Values for IPDM E/R ....203
How to Perform Trouble Diagnoses .....................203
Preliminary Check ................................................203
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................203
CONSULT-II Functions (BCM) ..............................204
CONSULT-II Functions (IPDM E/R) ......................204
Front Fog Lamps Do Not Illuminate (Both Sides) . 205
Front Fog Lamp Does Not Illuminate (One Side) . 208
Front Fog Lamps Do Not Turn OFF ......................209
Aiming Adjustment ................................................210
Bulb Replacement ................................................211
Removal and Installation ......................................211
REMOVAL .........................................................211
INSTALLATION .................................................211
TURN SIGNAL AND HAZARD WARNING LAMPS .212
Component Parts and Harness Connector Location .212
System Description ...............................................212
TURN SIGNAL OPERATION ............................212
HAZARD LAMP OPERATION ...........................213
COMBINATION SWITCH READING FUNCTION .214
CAN Communication System Description ............214
CAN Communication Unit .....................................214
Schematic .............................................................215
Wiring Diagram — TURN — .................................216
Terminals and Reference Values for BCM ............220
How to Perform Trouble Diagnoses .....................221
Preliminary Check ................................................222
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................222
CONSULT-II Functions (BCM) ..............................223
CONSULT-II BASIC OPERATION .....................223
DATA MONITOR ...............................................223
ACTIVE TEST ...................................................223
Turn Signal Lamp Does Not Operate ...................224
Hazard Warning Lamp Does Not Operate But Turn
Signal Lamp Operate ............................................226
Turn Signal Indicator Lamp Does Not Operate ....227
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

LT-4Revision: 2007 April2007 M35/M45 REMOVAL .........................................................230
INSTALLATION ..................................................230
Switch Circuit Inspection ......................................230
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 ................................................238
Combination Switch Inspection ............................239
Removal and Installation ......................................241
STOP LAMP ............................................................242
Wiring Diagram — STOP LAMP — ......................242
High-Mounted Stop Lamp .....................................244
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ..................................................244
Stop Lamp ............................................................244
BULB REPLACEMENT .....................................244
REMOVAL AND INSTALLATION .......................244
BACK-UP LAMP .....................................................245
Wiring Diagram — B/LAMP — .............................245
Bulb Replacement ................................................246
Removal and Installation ......................................247
REMOVAL .........................................................247
INSTALLATION ..................................................247
PARKING, LICENSE PLATE AND TAIL LAMPS ....248
Component Parts and Harness Connector Location .248
System Description ...............................................248
OUTLINE ...........................................................248
OPERATION BY LIGHTING SWITCH ...............249
COMBINATION SWITCH READING FUNCTION .249
EXTERIOR LAMP BATTERY SAVER CONTROL .249
CAN Communication System Description ............249
CAN Communication Unit .....................................249
Schematic .............................................................250
Wiring Diagram — TAIL/L — ................................251
Terminals and Reference Values for BCM ............256
Terminals and Reference Values for IPDM E/R ....257
How to Perform Trouble Diagnoses ......................257
Preliminary Check ................................................257
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................257
CONSULT-II Functions (BCM) ..............................258
CONSULT-II Functions (IPDM E/R) ......................258
Parking, License Plate and Tail Lamps Do Not Illu-
minate ...................................................................259
Parking, License Plate and Tail Lamps Do Not Turn
OFF (After Approx. 10 Minutes) ...........................263
License Plate Lamp ..............................................264
BULB REPLACEMENT .....................................264
Removal and Installation ......................................264
REMOVAL .........................................................264INSTALLATION ..................................................264
Front Parking (Clearance) Lamp ...........................264
BULB REPLACEMENT ......................................264
REMOVAL AND INSTALLATION .......................264
REAR COMBINATION LAMP .................................265
Bulb Replacement .................................................265
REAR TURN SIGNAL LAMP BULB, STOP/TAIL
LAMP BULB .......................................................265
Removal and Installation .......................................265
REMOVAL ..........................................................265
INSTALLATION ..................................................265
INTERIOR ROOM LAMP ........................................266
Component Parts and Harness Connector Location .266
System Description ...............................................266
ROOM LAMP TIMER BASIC OPERATION .......266
POWER SUPPLY AND GROUND .....................267
SWITCH OPERATION .......................................268
ROOM LAMP TIMER OPERATION ...................269
CONDITIONS FOR CANCELING TIMER ..........270
ROOM LAMP TIMER INAPPLICABLE LAMPS
OPERATION ......................................................270
INTERIOR ROOM LAMP BATTERY SAVER
FUNCTION ........................................................270
Schematic .............................................................271
Wiring Diagram — ROOM/L — .............................273
Terminals and Reference Values for BCM ............280
How to Perform Trouble Diagnoses ......................281
Preliminary Check .................................................282
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ...................................................................282
CONSULT-II Functions (BCM) ..............................283
CONSULT-II BASIC OPERATION .....................283
WORK SUPPORT (INT LAMP) .........................283
DATA MONITOR (INT LAMP) ............................284
ACTIVE TEST (INT LAMP) ................................285
WORK SUPPORT (BATTERY SAVER) .............285
DATA MONITOR (BATTERY SAVER) ...............285
ACTIVE TEST (BATTERY SAVER) ...................286
Interior Room Lamp Control Does Not Operate ....287
Map Lamp .............................................................289
BULB REPLACEMENT ......................................289
REMOVAL AND INSTALLATION .......................289
Personal Lamp ......................................................289
BULB REPLACEMENT ......................................289
REMOVAL AND INSTALLATION .......................289
Foot Lamp (Driver Side) ........................................290
BULB REPLACEMENT ......................................290
REMOVAL AND INSTALLATION .......................290
Foot Lamp (Passenger Side) ................................291
BULB REPLACEMENT ......................................291
REMOVAL AND INSTALLATION .......................291
Vanity Mirror Lamp ................................................291
BULB REPLACEMENT ......................................291
Step Lamp .............................................................292
BULB REPLACEMENT ......................................292
REMOVAL AND INSTALLATION .......................292
Kicking Plate Illumination ......................................292
BULB REPLACEMENT ......................................292

LT-5
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Revision: 2007 April2007 M35/M45 REMOVAL AND INSTALLATION ...................... 292
Trunk Room Lamp (Upper/Lower) ........................ 292
BULB REPLACEMENT ..................................... 292
REMOVAL AND INSTALLATION ...................... 292
ILLUMINATION ....................................................... 293
System Description .............................................. 293
OUTLINE ........................................................... 293
ILLUMINATION OPERATION BY LIGHTING
SWITCH ............................................................ 294
EXTERIOR LAMP BATTERY SAVER CONTROL . 295
CAN Communication System Description ............ 295
CAN Communication Unit .................................... 295
Schematic ............................................................ 296
Wiring Diagram — ILL — ..................................... 298
Glove Box Lamp .................................................... 311BULB REPLACEMENT, REMOVAL AND
INSTALLATION .................................................311
Cigarette Lighter Illumination ................................311
BULB REPLACEMENT, REMOVAL AND
INSTALLATION .................................................311
Front Ashtray Illumination .....................................312
BULB REPLACEMENT, REMOVAL AND
INSTALLATION .................................................312
Rear Ashtray Illumination .....................................312
REMOVAL AND INSTALLATION ......................312
INSTALLATION .................................................312
BULB SPECIFICATIONS ........................................313
Headlamp .............................................................313
Exterior Lamp .......................................................313
Interior Lamp/Illumination .....................................313

LT-8
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
Revision: 2007 April2007 M35/M45
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -PFP:26010
Component Parts and Harness Connector LocationNKS003NY
System DescriptionNKS003NZ
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.
PKIC1983E

HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
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Revision: 2007 April2007 M35/M45
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
AUTO LIGHT OPERATION
Refer to LT- 11 5 , "System Description" .
CAN Communication System DescriptionNKS003O0
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNKS003O1
Refer to LAN-50, "CAN System Specification Chart" .