2006 INFINITI M35 Factory Service Manual

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Page 4537 of 5621

INFINITI M35 2006 Factory Service Manual LT-110
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
Revision: 2006 January2006 M35/M45
4. CHECK HEADLAMP INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect front combination lam

Page 4538 of 5621

INFINITI M35 2006 Factory Service Manual HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
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6. CHECK CIRCUIT BETWEEN IPDM E/R AND FRONT COMBINATION LAMP
1. Turn ignition switch

Page 4539 of 5621

INFINITI M35 2006 Factory Service Manual LT-112
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
Revision: 2006 January2006 M35/M45
Headlamp Low Beam Does Not Illuminate (One Side)NKS003PP
1. CHECK BULB
Check ballast (HID control unit) an

Page 4540 of 5621

INFINITI M35 2006 Factory Service Manual HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
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3. CHECK HEADLAMP GROUND
1. Turn ignition switch OFF.
2. Check continuity between fr

Page 4541 of 5621

INFINITI M35 2006 Factory Service Manual LT-114
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
Revision: 2006 January2006 M35/M45
Headlamps Do Not Turn OFFNKS003PQ
1. CHECK HEADLAMP TURN OFF
Make sure that lighting switch is OFF. And make su

Page 4542 of 5621

INFINITI M35 2006 Factory Service Manual HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
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General Information for Xenon Headlamp Trouble DiagnosisNKS003PR
In most cases, malfu

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
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General Information for Xenon Headlamp Trouble DiagnosisNKS003PR
In most cases, malfunction of xenon headlamp - "does not illuminate", "flickers" or "dark" - is caused by a mal-
functioning xenon bulb. A HID control unit or lamp housing, however, may be a cause of malfunction. Be sure
to perform trouble diagnosis following the steps described below.
CAUTION:NKS003PS
Installation or removal of connector must be done with lighting switch OFF.
When lamp is illuminated (when lighting switch is ON), do not touch harness, HID control unit, inside of
lamp, or lamp metal parts.
To check illumination, temporarily install lamp in the vehicle. Be sure to connect power at the vehicle-side
connector.
If the error can be traced directly to the electrical system, first check for items such as burned-out fuses
and fusible links, broken wires or loose connectors, pulled-out terminals, and improper connections.
Do not work with wet hands.
Using a tester for HID control unit circuit trouble diagnosis is prohibited.
Disassembling the HID control unit or harnesses (bulb socket harness, ECM harness) is prohibited.
Immediately after illumination, the light intensity and color will fluctuate, but there is nothing wrong.
When the bulb has reached the end of its lifetime, the brightness may drop significantly, it may flash
repeatedly, or the light may turn a reddish color.
Xenon Headlamp Trouble DiagnosisNKS003PT
1. CHECK 1: XENON HEADLAMP LIGHTING
Install normal xenon bulb to corresponding xenon bulb headlamp, and check if lamp lights up.
OK or NG
OK >> Replace xenon bulb.
NG >> GO TO 2.
2. CHECK 2: XENON HEADLAMP LIGHTING
Install normal HID control unit to corresponding xenon headlamp, and check if lamp lights up.
OK or NG
OK >> Replace HID control unit.
NG >> GO TO 3.
3. CHECK 3: XENON HEADLAMP LIGHTING
Install normal xenon lamp housing assembly to corresponding xenon headlamp, and check if lamp lights up.
OK or NG
OK >> Replace xenon headlamp housing assembly. [Malfunction in starter (boosting circuit) in xenon
headlamp housing]
NG >> INSPECTION END
Aiming AdjustmentNKS003PU
Refer to LT- 7 4 , "Aiming Adjustment" .
Bulb ReplacementNKS003PV
Refer to LT- 7 5 , "Bulb Replacement" .
Removal and InstallationNKS003PW
Refer to LT- 4 1 , "Removal and Installation" .
Disassembly and AssemblyNKS003PX
Refer to LT- 7 7 , "Disassembly and Assembly" .

Page 4543 of 5621

INFINITI M35 2006 Factory Service Manual LT-116
AUTO LIGHT SYSTEM
Revision: 2006 January2006 M35/M45
AUTO LIGHT SYSTEMPFP:28491
Component Parts and Harness Connector LocationNKS003PY
System DescriptionNKS003PZ
Automatically turns ON/OFF the

Page 4544 of 5621

INFINITI M35 2006 Factory Service Manual AUTO LIGHT SYSTEM
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to optical sensor terminal 1.
Optical sensor, ground is supplied
to optical sensor terminal 3
through BCM terminal

AUTO LIGHT SYSTEM
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to optical sensor terminal 1.
Optical sensor, ground is supplied
to optical sensor terminal 3
through BCM terminal 18.
When ignition switch is turn to ON position, and
When outside brightness is darker than prescribed level, input is supplied
from optical sensor terminal 2
to BCM terminal 14.
The headlamps will then illuminate. For a description of headlamp operation, Refer to LT- 11 6 , "
System
Description" .
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 (or if auto light system is activated), 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.
DELAY TIMER FUNCTION
Delay timer function carries out a function that BCM activates the timer and controls lights out of headlamps by
door switch signal and lightning switch signal when turning the Ignition switch OFF while it is ON and head-
lamps are ON by the auto light function.
Timer types are a 5 minutes timer and a 45 seconds timer
When opening any door (door switch is ON), the 5 minutes timer starts and then headlamps go out five
minutes later
When all the doors are closed (from door switch ON to OFF), the 45 second timer starts and then head-
lamps go out 45 seconds later. If any door is opened (door switch ON) while the 45 seconds timer is in
operation, the 5 minutes timer starts again
The timer stops when turning on the ignition switch or turning off the auto light switch under the above
conditions.
Delay timer control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionNKS003Q0
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 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 the high rate of information transmission with less wir-
ing. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNKS003Q1
Refer to LAN-34, "CAN Communication Unit" .
Major Components and FunctionsNKS003Q2
Components Functions
BCM
Turns on/off circuits of tail light and headlamp according to signals from optical sensor, lighting switch
(AUTO), driver door switch, passenger door switch, rear door switch, and ignition switch (ON, OFF).
Optical sensor
Converts outside brightness (lux) to voltage, and sends it to BCM. (Detects brightness of 50 to 1,300 lux)

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