light INFINITI M35 2006 Factory Service Manual

FRONT FOG LAMP
LT-195
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Revision: 2006 January2006 M35/M45
FOG LAMP OPERATION
The fog lamp switch is built in combination switch. The lighting switch must be in 2ND position or AUTO posi-
tion (headlamp is ON) and fog lamp switch must be ON for fog lamp operation.
With the fog lamp switch in the ON position, the CPU located in IPDM E/R grounds coil side of the fog lamp
relay. Fog lamp relay then directs power
through IPDM E/R terminal 37
to front fog lamp RH terminal 1,
through IPDM E/R terminal 36
to front fog lamp LH terminal 1.
Ground is supplied
to front fog lamp RH terminal 2
through grounds E22 and E43,
to front fog lamp LH terminal 2
through grounds E22 and E43.
With power and grounds supplied, the front fog lamps illuminate.
The unified meter and A/C amp. that received the front fog lamp request signal by BCM across the CAN com-
munication makes a front fog lamp 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.
CAN Communication System DescriptionNKS003R4
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 UnitNKS003R5
Refer to LAN-34, "CAN Communication Unit" .

FRONT FOG LAMP
LT-201
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Revision: 2006 January2006 M35/M45
Terminals and Reference Values for BCMNKS003R8
CAUTION:
Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.
Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position.
Wiper dial position can be confirmed on CONSULT-II. Refer to LT- 5 8 , "
DATA MONITOR" .
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
3O/LCombination
switch input 4ONLighting, turn, wiper
switch
(Wiper dial position 4)Front fog lamp switch
ON (Operates only front
fog lamp switch)
Approx. 0.8V
OFF Approx. 0V
11 VIgnition switch
(ACC)ACC — Battery voltage
32 LGCombination
switch output 5ONLighting, turn, wiper
switch
(Wiper dial position 4)Front fog lamp switch
ON (Operates only front
fog lamp switch)
Approx. 1.0V
OFF
Approx. 7.0 - 7.5V
38 WIgnition switch
(ON) ON — Battery voltage
39 L CAN
H — — —
40 P CAN
L — — —
42 PBattery power
supplyOFF — Battery voltage
52 B Ground ON — Approx. 0V
55 WBattery power
supplyOFF — Battery voltage
PKIB4955J
PKIB4956J
PKIB4960J

LT-202
FRONT FOG LAMP
Revision: 2006 January2006 M35/M45
Terminals and Reference Values for IPDM E/RNKS003R9
How to Perform Trouble DiagnosesNKS003RA
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 9 3 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT-202, "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the front fog lamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckNKS003RB
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSE
Check for blown fuses.
Refer to LT-197, "Wiring Diagram — F/FOG —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
36 L/Y Front fog lamp (LH) ONLighting switch must be in
the 2ND position or AUTO
position (headlamp is ON)Front fog lamp switch: OFF Approx. 0V
Front fog lamp switch: ON Battery voltage
37 W/R Front fog lamp (RH) ONLighting switch must be in
the 2ND position or AUTO
position (headlamp is ON)Front fog lamp switch: OFF Approx. 0V
Front fog lamp switch: ON Battery voltage
38 B Ground ON — Approx. 0V
49 L CAN
H — — —
50 P CAN
L — — —
51 B Ground ON — Approx. 0V
Unit Power source Fuse and fusible link No.
BCMBatteryF
21
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6
IPDM E/R Battery71
88
78

LT-204
FRONT FOG LAMP
Revision: 2006 January2006 M35/M45
Front Fog Lamps Do Not Illuminate (Both Sides)NKS003RE
1. CHECK COMBINATION SWITCH INPUT SIGNAL
With CONSULT-II
1. Select “BCM” on CONSULT-II. Select “HEAD LAMP” on
“SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
Make sure “FR FOG SW” turns ON-OFF linked with operation of
fog lamp switch.
Without CONSULT-II
Refer to LT- 2 4 0 , "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Check combination switch (lighting switch). Refer to LT-240, "
Combination Switch Inspection" .
2. FRONT FOG LAMP ACTIVE TEST
With CONSULT-II
1. Select “IPDM E/R” on CONSULT-II. Select “ACTIVE TEST” on
“SELECT DIAG MODE” screen.
2. Select “LAMPS” on “SELECT TEST ITEM” screen.
3. Touch “FOG” screen.
4. Make sure fog lamp operation.
Without CONSULT-II
1. Start auto active test. Refer to PG-24, "
Auto Active Test" .
2. Make sure fog lamp operation.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3. CHECK IPDM E/R
1. Select “IPDM E/R” on CONSULT-II. Select “DATA MONITOR”
on “SELECT DIAG MODE” screen.
2. Make sure “FR FOG REQ” turns ON when fog lamp switch is in
ON position.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-31, "Removal and
Installation of IPDM E/R" .
NG >> Replace BCM. Refer to BCS-17, "
Removal and Installa-
tion of BCM" . When fog lamp switch is ON : FR FOG SW ON
PKIA7598E
Front fog lamps should operate.
Front fog lamp should operate.
PKIA7748E
When lighting switch is ON
position: FR FOG REQ ON
SKIA5898E

LT-208
FRONT FOG LAMP
Revision: 2006 January2006 M35/M45
4. CHECK FOG LAMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector (A) and
front fog lamp RH or LH harness connector (B).
4. Check harness continuity between IPDM E/R harness connector
(A) and ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-31, "Removal and Installation of IPDM E/R" .
NG >> Repair harness or connector.
Front Fog Lamps Do Not Turn OFFNKS003RG
1. CHECK FRONT FOG LAMP TURN OFF
Make sure that lighting switch is OFF. And make sure front fog lamp turns off when ignition switch is turned
OFF.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. CHECK COMBINATION SWITCH INPUT SIGNAL
Select “BCM” on CONSULT-II. With “HEAD LAMP” data monitor,
make sure “FR FOG SW” turns ON-OFF linked with operation of fog
lamp switch.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-31, "Removal and
Installation of IPDM E/R" .
NG >> Check combination switch (lighting switch). Refer to LT-
240, "Combination Switch Inspection" .
CircuitAB
Continuity
Connector Terminal Connector Terminal
RH
E836 E60 1
Ye s
LH 37 E45 1
A
GroundContinuity
Connector Terminal
RH
E836
No
LH 37
SKIB4815E
When fog lamp switch is
OFF position: FR FOG SW OFF
PKIB9378E

LT-210
FRONT FOG LAMP
Revision: 2006 January2006 M35/M45
Bulb ReplacementNKS003RI
1. Turn lighting switch OFF.
2. Remove fender protector (front). Refer to EI-20, "
FENDER PROTECTOR" .
3. Turn bulb (1) counterclockwise and unlock it.
4. Disconnect connector (2), and remove bulb (1).
CAUTION:
Never touch the glass of bulb directly by hand. Keep grease
and other oily matters away from it. Never touch bulb by
hand while it is lit or right after being turned off.
Never leave bulb out of fog lamp reflector for a long time
because dust, moisture smoke, etc. may affect the perfor-
mance of fog lamp. When replacing bulb, be sure to replace
it with new one.
Removal and InstallationNKS003RJ
REMOVAL
1. Remove front bumper grille (1). Refer to EI-13, "Removal and
Installation of Front Bumper Grille" .
2. Remove screws (2) and remove front fog lamp (3) from vehicle.
: Nꞏm (kg-m, in-lb)
INSTALLATION
Installation is the reverse order of removal.Front fog lamp : 12V - 55W (H11)
SKIB4161E
SKIB4162E
Front fog lamp mounting bolt : 5.5 Nꞏm (0.56 kg-m, 49 in-lb)

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-219
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Revision: 2006 January2006 M35/M45
Terminals and Reference Values for BCMNKS003RQ
CAUTION:
Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.
Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position.
Wiper dial position can be confirmed on CONSULT-II. Refer to LT-224, "
DATA MONITOR" .
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
2L/RCombination
switch input 5ONLighting, turn, wiper
switch
(Wiper dial position 4)Turn signal switch to
right
Approx. 1.0V
OFF Approx. 0V
3O/LCombination
switch input 4ONLighting, turn, wiper
switch
(Wiper dial position 4)Turn signal switch to left
Approx. 1.0V
OFF Approx. 0V
29 V/RHazard switch
signalOFF Hazard switchON Approx. 0V
OFF Battery voltage
36 VCombination
switch output 1ONLighting, turn, wiper
switch
(Wiper dial position 4)
Any of several con-
ditions below
Turn signal switch to
right
Turn signal switch to
left
Approx. 1.2V
OFF
Approx. 7.0 - 7.5V
38 WIgnition switch
(ON) ON — Battery voltage
39 L CAN
H — — —
40 P CAN
L — — —
42 PBattery power
supplyOFF — Battery voltage
PKIB4957J
PKIB4957J
PKIB4958J
PKIB4960J

LT-224
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2006 January2006 M35/M45
DATA MONITOR
Operation Procedure
1. Touch “FLASHER” on “SELECT TEST ITEM” screen.
2. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
3. Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on the “SELECT MONITOR ITEM” screen.
4. When “SELECTION FROM MENU” is selected, touch items to be monitored. When “ALL SIGNALS” 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
ACTIVE TEST
Operation Procedure
1. Touch “FLASHER” on “SELECT TEST ITEM” screen.
2. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching “BACK” deactivates the operation.
Display Item List
ALL SIGNALS Monitors all the signals.
SELECTION FROM MENU Selects items and monitor them.
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from the ignition switch signal.
HAZARD SW “ON/OFF” Displays “hazard ON (ON)/hazard OFF (OFF)” status, determined from hazard switch signal.
TURN SIGNAL R “ON/OFF” Displays “turn right (ON)/other (OFF)” status, determined from lighting switch signal.
TURN SIGNAL L “ON/OFF” Displays “turn left (ON)/other (OFF)” status, determined from lighting switch signal.
Test item Description
FLASHER (RIGHT) Turn signal lamp (right) can be operated by any ON-OFF operations.
FLASHER (LEFT) Turn signal lamp (left) can be operated by any ON-OFF operations.

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-225
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Revision: 2006 January2006 M35/M45
Turn Signal Lamp Does Not OperateNKS003RU
1. CHECK BULB
Check bulb standard of each turn signal lamp is correct.
OK or NG
OK >> GO TO 2.
NG >> Replace turn signal lamp bulb.
2. CHECK COMBINATION SWITCH INPUT SIGNAL
With CONSULT-II
1. Select “BCM” on CONSULT-II. Select “FLASHER” on “SELECT
TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
Make sure “TURN SIGNAL R” and “TURN SIGNAL L” turns ON-
OFF linked with operation of lighting switch.
Without CONSULT-II
Refer to LT-240, "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Check combination switch (lighting switch). Refer to LT- 2 4 0 , "
Combination Switch Inspection" .
3. ACTIVE TEST
With CONSULT-II
1. Select “BCM” on CONSULT-II. Select “FLASHER” on “SELECT
TEST ITEM” screen.
2. Select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
Select “FLASHER” on “SELECT TEST ITEM” screen.
3. Make sure operation of turn signal lamps.
Without CONSULT-II
GO TO 4.
OK or NG
OK >> Replace BCM. Refer to BCS-17, "Removal and Installa-
tion of BCM" .
NG >> GO TO 4.When lighting switch is
TURN RH position: TURN SIGNAL R ON
When lighting switch is
TURN LH position: TURN SIGNAL L ON
PKIA7600E
Turn signal lamp should operate.
SKIA6190E

LT-230
LIGHTING AND TURN SIGNAL SWITCH
Revision: 2006 January2006 M35/M45
LIGHTING AND TURN SIGNAL SWITCHPFP:25540
Removal and InstallationNKS003S2
REMOVAL
1. Remove steering column lower cover. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. While pressing pawls (A) in direction as shown in the figure, pull
lighting and turn signal switch (1) toward driver door and discon-
nect from the base.
INSTALLATION
Installation is the reverse order of removal.
Switch Circuit InspectionNKS003S3
Refer to LT- 2 4 0 , "Combination Switch Inspection" .
SKIB4186E