ignition INFINITI FX35 2007 Service Manual

LT-3
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LIGHTING AND TURN SIGNAL SWITCH .............
. 109
Removal and Installation ..................................... . 109
REMOVAL ........................................................ . 109
INSTALLATION ................................................ . 109
HAZARD SWITCH ................................................. ..110
Removal and Installation ..................................... .. 110
REMOVAL ........................................................ .. 110
INSTALLATION ................................................ .. 110
COMBINATION SWITCH ....................................... .. 111
Wiring Diagram — COMBSW — ......................... . . 111
Combination Switch Reading Function ............... .. 112
Terminals and Reference Values for BCM .......... .. 112
CONSULT-II Functions (BCM) ............................ .. 117
CONSULT-II BASIC OPERATION .................... .. 117
DATA MONITOR .............................................. .. 117
Combination Switch Inspection ........................... .. 118
Removal and Installation ..................................... . 120
STOP LAMP .......................................................... . 121
Component Parts and Harness Connector Location . 121
System Description ............................................. . 121
Schematic ........................................................... . 122
Wiring Diagram — STOP/L — ............................. . 123
Terminals and Reference Value for Rear Combina-
tion Lamp Control Unit ........................................ . 126
Stop Lamp Does Not Operate ............................. . 126
High-Mounted Stop Lamp ................................... . 128
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ................................................ . 128
Stop Lamp ........................................................... . 128
BULB REPLACEMENT .................................... . 128
REMOVAL AND INSTALLATION ..................... . 128
Rear Combination Lamp Control Unit ................. . 128
REMOVAL AND INSTALLATION ..................... . 128
BACK-UP LAMP ................................................... . 129
Wiring Diagram — BACK/L — ............................ . 129
Bulb Replacement ............................................... . 130
Removal and Installation ..................................... . 130
PARKING, LICENSE PLATE AND TAIL LAMPS .. . 131
Component Parts and Harness Connector Location . 131
System Description ............................................. . 131
OUT LINE ......................................................... . 131
OPERATION BY LIGHTING SWITCH ............. . 132
COMBINATION SWITCH READING FUNCTION . 133
EXTERIOR LAMP BATTERY SAVER CONTROL . 133
CAN Communication System Description ........... . 133
CAN Communication Unit ................................... . 133
Schematic ........................................................... . 134
Wiring Diagram — TAIL/L — ............................... . 135
Terminals and Reference Values for BCM .......... . 140
Terminals and Reference Values for IPDM E/R .. . 141
Terminals and Reference Value for Rear Combina-
tion Lamp Control Unit ........................................ . 141
How to Proceed With Trouble Diagnosis ............. . 141
Preliminary Check ............................................... . 141
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ................................................................. . 141
CONSULT-II Functions (BCM) ............................ . 142
CONSULT-II Functions (IPDM E/R) .................... . 142
Parking, License Plate and Side Marker Lamps Do Not Illuminate .......................................................
.143
Tail Lamp Does Not Operate ............................... .147
Parking, License Plate, Side Maker and Tail Lamps
Do Not Turn OFF (After Approx. 10 Minutes) ...... .149
License Plate Lamp ............................................. .150
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ................................................ .150
Front Parking Lamp ............................................. .150
BULB REPLACEMENT .................................... .150
REMOVAL AND INSTALLATION ..................... .150
Tail Lamp ............................................................. .150
BULB REPLACEMENT .................................... .150
REMOVAL AND INSTALLATION ..................... .150
Front Side Marker Lamp ...................................... .150
BULB REPLACEMENT .................................... .150
REMOVAL AND INSTALLATION ..................... .150
Rear Side Marker Lamp ...................................... .150
BULB REPLACEMENT .................................... .150
REMOVAL AND INSTALLATION ..................... .150
Rear Combination Lamp Control Unit .................. .150
REMOVAL AND INSTALLATION ..................... .150
REAR COMBINATION LAMP ................................ .151
Bulb Replacement ............................................... .151
REAR FENDER SIDE (REAR SIDE MARKER
LAMP BULB) .................................................... .151
BACK DOOR SIDE (BACK-UP LAMP) ............ .151
Removal and Installation ..................................... .151
REMOVAL ........................................................ .151
INSTALLATION ................................................ .151
INTERIOR ROOM LAMP ....................................... .152
Component Parts and Harness Connector Location .152
System Description .............................................. .152
POWER SUPPLY AND GROUND ................... .153
SWITCH OPERATION ..................................... .154
ROOM LAMP TIMER OPERATION ................. .155
INTERIOR LAMP BATTERY SAVER CONTROL .157
Schematic ............................................................ .158
Wiring Diagram — ROOM/L — ........................... .160
Terminals and Reference Values for BCM ........... .168
How to Proceed With Trouble Diagnosis ............. .169
Preliminary Check ............................................... .170
CHECK FOR POWER SUPPLY AND GROUND
CIRCUIT ........................................................... .170
CONSULT-II Functions (BCM) ............................. .171
CONSULT-II BASIC OPERATION .................... .171
WORK SUPPORT (INT LAMP) ........................ .171
DATA MONITOR (INT LAMP) .......................... .171
ACTIVE TEST (INT LAMP) .............................. .172
WORK SUPPORT (BATTERY SAVER) ........... .173
DATA MONITOR (BATTERY SAVER) .............. .173
ACTIVE TEST (BATTERY SAVER) .................. .174
Interior Room Lamp Control Does Not Operate .. .174
Map Lamp Control Does Not Operate ................. .176
Personal Lamp Control Does Not Operate .......... .178
Ignition Key Hole Illumination Control Does Not
Operate ................................................................ .179
All Step Lamps Do Not Operate .......................... .181
All Interior Room Lamps Do Not Operate ............ .182
Bulb Replacement ............................................... .182

LT-4Revision: 2006 July 2007 FX35/FX45
IGNITION KEY HOLE ILLUMINATION (WITH-
OUT INTELLIGENT KEY) ................................ .182
IGNITION KEY HOLE ILLUMINATION (WITH
INTELLIGENT KEY) ......................................... .182
FRONT STEP LAMP ........................................ .183
REAR STEP LAMP .......................................... .183
LUGGAGE ROOM LAMP ................................. .183
VANITY MIRROR LAMP .................................. .183
MAP LAMP ....................................................... .184
INTERIOR ROOM LAMP ................................. .184
PERSONAL LAMP ........................................... .184
Removal and Installation ..................................... .184
LUGGAGE ROOM LAMP ................................. .184
MAP LAMP ....................................................... .185
INTERIOR ROOM LAMP ................................. .185
PERSONAL LAMP ........................................... .185
ILLUMINATION ...................................................... .186
System Description .............................................. .186 ILLUMINATION OPERATION BY LIGHTING
SWITCH ............................................................ .186
EXTERIOR LAMP BATTERY SAVER CONTROL .187
CAN Communication System Description ........... .188
CAN Communication Unit .................................... .188
Schematic ............................................................ .189
Wiring Diagram — ILL — ..................................... .191
Bulb Replacement ................................................ .200
GLOVE BOX LAMP .......................................... .200
A/T DEVICE ILLUMINATION ............................ .200
COIN BOX ILLUMINATION .............................. .200
Removal and Installation ...................................... .200
ILLUMINATION CONTROL SWITCH ............... .200
BULB SPECIFICATIONS ....................................... .201
Headlamp ............................................................. .201
Exterior Lamp ....................................................... .201
Interior Lamp/Illumination ..................................... .201

LT-6
HEADLAMP - XENON TYPE -
Revision: 2006 July 2007 FX35/FX45
HEADLAMP - XENON TYPE -PFP:26010
Component Parts and Harness Connector LocationNKS002V5
System DescriptionNKS002V6
Control of the headlamp system operation is dependent upon the position of the combination switch (lighting
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) through 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.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
OUTLINE
Power is supplied at all times

to headlamp high relay, located in IPDM E/R

to headlamp low relay, located in IPDM E/R and

to ignition relay, located in IPDM E/R, from battery direct,

through 10A fuse (No. 71, located in IPDM E/R)

to CPU located in IPDM E/R,

through 15A fuse (No. 78, located in IPDM E/R)

to CPU located in IPDM E/R,

through 50A fusible link (letter M, located in fuse, fusible link and relay box)

to BCM terminal 55,

through 15A fuse [No. 22, located in fuse block (J/B)]

to BCM terminal 42,

through 10A fuse [No. 19, located in fuse block (J/B)]

to combination meter terminal 8.
PKIC9683E

HEADLAMP - XENON TYPE - LT-7
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With ignition switch in ON or START position, power is supplied

to ignition relay, located in IPDM E/R, from battery direct

through 15A fuse [No. 1, located in fuse block (J/B)]

to BCM terminal 38,

through 10A fuse [No. 14, located in fuse block (J/B)]

to combination meter terminal 7.
With ignition switch in ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to BCM terminal 11.
Ground is supplied

to BCM terminals 49 and 52

through grounds M35, M45 and M85,

to IPDM E/R terminals 38 and 60

through grounds E21, E50 and E51,

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85.
HEADLAMP OPERATION
Low Beam Operation
With the lighting switch in the 2ND position, the BCM receives input signal requesting the headlamps to illumi-
nate. This input signal is communicated to the IPDM E/R through the CAN communication lines. The CPU
located in the IPDM E/R controls the headlamp low relay coil, which when energized, directs power

through 15A fuse (No. 76, located in IPDM E/R)

through IPDM E/R terminal 20

to front combination lamp RH terminal 6,

through 15A fuse (No. 86, located in IPDM E/R)

through IPDM E/R terminal 30

to front combination lamp LH terminal 6.
Ground is supplied

to front combination lamp RH and LH terminals 7

through grounds E21, E50 and E51,
With power and ground supplied, low beam headlamps illuminate.
High Beam Operation/Flash-to-Pass Operation
With the lighting switch in the 2ND position and placed in the HIGH or PASS position, the BCM receives input
signal requesting the headlamp high beams to illuminate. This input signal is communicated to the IPDM E/R
through 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

through 15A fuse (No. 76, located in IPDM E/R)

through IPDM E/R terminal 20

to front combination lamp RH terminal 6,

through 15A fuse (No. 86, located in IPDM E/R)

through IPDM E/R terminal 30

to front combination lamp LH terminal 6,

through 10A fuse (No. 72, located in IPDM E/R)

through IPDM E/R terminal 27

to front combination lamp RH terminal 5,

through 10A fuse (No. 74, located in IPDM E/R)

through IPDM E/R terminal 28

to front combination lamp LH terminal 5.

LT-8
HEADLAMP - XENON TYPE -
Revision: 2006 July 2007 FX35/FX45
Ground is supplied

to front combination lamp RH and LH terminals 7

through grounds E21, E50 and E51,
With power and ground supplied, the high beam headlamps illuminate.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
The unified meter and A/C amp. that received the high beam request signal by BCM through the CAN commu-
nication makes a high beam indicator lamp turn on in combination meter.
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 (IF EQUIPPED)
Refer to LT- 5 5 , "System Description" .
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-180, "VEHICLE
SECURITY (THEFT WARNING) SYSTEM" .
XENON HEADLAMP
Xenon type lamps are used for to the low beam headlamps. Xenon bulbs do not use a filament. Instead, they
produce light when a high voltage current is passed between two tungsten electrodes through a mixture of
xenon (an inert gas) and certain other metal halides. In addition to strong lighting power, electronic control of
the power supply gives the headlamps stable quality and tone color.
Followings are some advantages of the xenon type headlamp.

The light produced by the headlamps is white color similar to sunlight that is easy to the eyes.

Light output is nearly double that of halogen headlamps, affording increased area of illumination.

Counter-reflected luminance increases and the contrast enhances on the wet road in the rain. That makes
visibility go up more than the increase of the light volume.

Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
CAN Communication System DescriptionNKS002V7
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 UnitNKS002V8
Refer to LAN-49, "CAN System Specification Chart" .

LT-14
HEADLAMP - XENON TYPE -
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Values for BCMNKS002VB
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 intermittent dial position to 4 except when checking waveform or voltage of wiper inter-
mittent dial position. Wiper intermittent dial position can be confirmed on CONSULT-II. Refer to LT-
11 7 , "DATA MONITOR" .
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
2GY Combination
switch input 5 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF Approx. 0 V
Lighting switch HIGH beam
(Operates only HIGH beam
switch)
Approx. 1.0 V
Lighting switch 2ND Approx. 2.0 V
3L/B Combination
switch input 4 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF Approx. 0 V
Any of the conditions below

Lighting switch 2ND

Lighting switch PASSING
(Operates only PASSING
switch)
Approx. 1.0 V
11 L G Ignition switch
(ACC) ACC — Battery voltage
PKIB4959J
PKIB4953J
PKIB4959J

HEADLAMP - XENON TYPE - LT-15
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34 W/B Combination
switch output 3 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF
Approx. 7.2 V
Any of the conditions below

Lighting switch 2ND

Lighting switch HI beam
(Operates only HI beam
switch)
Approx. 1.2 V
35 W/G Combination
switch output 2 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF
Approx. 7.2 V
Any of the conditions below

Lighting switch 2ND

Lighting switch PASSING
(Operates only PASSING
switch)
Approx. 1.2 V
38 W/L Ignition switch
(ON) ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 L/R Battery power
supply OFF — Battery voltage
49 B Ground ON — Approx. 0 V
52 B Ground ON — Approx. 0 V
55 G Battery power
supply OFF — Battery voltage
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J

LT-16
HEADLAMP - XENON TYPE -
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Values for IPDM E/RNKS002VC
How to Proceed With Trouble DiagnosisNKS002VD
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 6 , "
System Description" .
3. Perform Preliminary Check. Refer to LT- 1 6 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does headlamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckNKS002VE
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
Check for blown fuses.
Refer to LT- 1 0 , "
Wiring Diagram — H/LAMP —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
20 LG Headlamp low (RH) ON Lighting switch 2ND
position OFF Approx. 0 V
ON Battery voltage
27 BR Headlamp high (RH) ON Lighting switch HIGH
or PASS position OFF Approx. 0 V
ON Battery voltage
28 SB Headlamp high (LH) ON Lighting switch HIGH
or PASS position OFF Approx. 0 V
ON Battery voltage
30 GY Headlamp low (LH) ON Lighting switch 2ND
position OFF Approx. 0 V
ON Battery voltage
38 B Ground ON — Approx. 0 V
48 L CAN − H— — —
49 R CAN − L— — —
60 B Ground ON — Approx. 0 V
Unit Power source Fuse and fusible link No.
BCM Battery
M
22
Ignition switch ON or START position 1 Ignition switch ACC or ON position 6
IPDM E/R Battery 72
74
76
86

HEADLAMP - XENON TYPE - LT-17
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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 >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
(+)
(-) Ignition switch position
BCM con- nector Terminal OFF ACC ON
M3 11
Ground Approx. 0 V
Battery
voltage Battery
voltage
38 Approx. 0 V Approx. 0 V Battery
voltage
M4 42
Battery
voltage Battery
voltage Battery
voltage
55 Battery
voltage Battery
voltage Battery
voltage
PKIA5204E
BCM connector Terminal
Ground Continuity
M4 49
Ye s
52
SKIA5294E

LT-18
HEADLAMP - XENON TYPE -
Revision: 2006 July 2007 FX35/FX45
CONSULT-II Functions (BCM)NKS002VF
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-II BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
WORK SUPPORT
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
3. Touch item on “SELECT WORK ITEM” screen.
4. Touch “START”.
5. Touch “CHANGE SET”.
6. The setting will be changed and “CUSTOMIZING COMPLETED” will be displayed.
7. Touch “END”.
Display Item List
DATA MONITOR
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
3. Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on “SELECT MONITOR ITEM” screen.
4. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “ALL SIG- NALS” is selected, all the items will be monitored.
5. Touch “START”.
6. Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop recording, touch “STOP”.
Display Item List
BCM diagnosis part Diagnosis mode Description
HEADLAMP WORK SUPPORT Changes the setting for each function.
DATA MONITOR Displays BCM input data in real time. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
BCM SELF-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.
Item Description CONSULT-II Factory setting
BATTERY SAVER SET Exterior lamp battery saver control mode can be changed in this mode.
Selects exterior lamp battery saver control mode between two ON/OFF. ON
×
OFF —
ALL SIGNALS Monitors all the signals.
SELECTION FROM MENU Selects items and monitors them.
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from ignition switch signal.
ACC ON SW “ON/OFF” Displays “ACC (ON)/OFF, Ignition OFF (OFF)” status judged from ignition switch signal.
HI BEAM SW “ON/OFF” Displays status (high beam switch: ON/Others: OFF) of high beam switch judged from
lighting switch signal.
HEAD LAMP SW 1 “ON/OFF” Displays status (headlamp switch 1: ON/Others: OFF) of headlamp switch 1 judged from
lighting switch signal.
HEAD LAMP SW 2 “ON/OFF” Displays status (headlamp switch 2: ON/Others: OFF) of headlamp switch 2 judged from
lighting switch signal.