Infiniti M35/M45 Y50. Manual - part 892

 

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Infiniti M35/M45 Y50. Manual - part 892

 

 

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

LT-113

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LT

Headlamps Do Not Turn OFF

NKS003PQ

1. 

CHECK HEADLAMP TURN OFF

Make sure that lighting switch is OFF. And make sure is headlamp 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 “HEAD LAMP SW 1” and “HEAD LAMP SW 2” turns ON-
OFF linked with operation of lighting switch.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-31, "Removal and

Installation of IPDM E/R"

 .

NG

>> Check lighting switch. Refer to 

LT-239, "Combination

Switch Inspection"

 .

3. 

CHECK CAN COMMUNICATIONS BETWEEN BCM AND IPDM E/R

Select “BCM” by CONSULT-II, and perform self-diagnosis for “BCM”.
Display of self-diagnosis results

NO DTC>> Replace IPDM E/R. Refer to 

PG-31, "Removal and

Installation of IPDM E/R"

 .

CAN COMM CIRCUIT>>  Refer  to 

BCS-13, "CAN Communication

Inspection Using CONSULT-II (Self-Diagnosis)"

 .

When lighting switch is OFF 
position

: HEAD LAMP SW 1 OFF
: HEAD LAMP SW 2 OFF

PKIA7011E

PKIA7627E

LT-114

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

General Information for Xenon Headlamp Trouble Diagnosis

NKS003PR

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 Diagnosis

NKS003PT

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.

NG

>> INSPECTION END

Aiming Adjustment

NKS003PU

Refer to 

LT-72, "Aiming Adjustment"

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Bulb Replacement

NKS003PV

Refer to 

LT-73, "Bulb Replacement"

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Removal and Installation

NKS003PW

Refer to 

LT-75, "Removal and Installation"

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Disassembly and Assembly

NKS003PX

Refer to 

LT-76, "Disassembly and Assembly"

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AUTO LIGHT SYSTEM

LT-115

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AUTO LIGHT SYSTEM

PFP:28491

Component Parts and Harness Connector Location

NKS003PY

System Description

NKS003PZ

Automatically turns ON/OFF the parking lamps and the headlamps in accordance with ambient light.
Timing for when lamps turn ON/OFF can be selected using four modes.

OUTLINE

The auto light control system has an optical sensor inside it that detects outside brightness.
When the lighting switch is in AUTO position, it automatically turns ON/OFF the parking lamps and the head-
lamps in accordance with ambient light. Sensitivity can be adjusted in four steps. For the details of the setting,
Refer to 

LT-127, "SETTING CHANGE FUNCTIONS"

 .

Optical sensor, power is supplied

from BCM (body control module) terminal 17

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-115, "System

Description"

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PKID0501E

LT-116

AUTO LIGHT SYSTEM

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 Description

NKS003Q0

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 Unit

NKS003Q1

Refer to 

LAN-50, "CAN System Specification Chart"

 .

Major Components and Functions

NKS003Q2

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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