Infiniti G35 (V35). Manual - part 581

LT-4

PRECAUTIONS

PFP:00011

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”

NKS000FA

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.

WARNING:

●

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

●

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

Precautions for Battery Service

NKS000FB

Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.

General Precautions for Service Operations

NKS000FC

●

Never work with wet hands.

●

Xenon headlamp includes high voltage generating part. Be sure
to disconnect battery negative cable (negative terminal) or
power fuse before removing, installing, or touching the xenon
headlamp (including lamp bulb).

●

Turn the lighting switch OFF before disconnecting and connect-
ing the connector.

●

When turning the xenon headlamp on and while it is illuminated,
never touch the harness, bulb, and socket of the headlamp.

●

When checking the headlamp on/off operation, check it on vehi-
cle and with the power connected to the vehicle-side connector.

●

Do not touch the headlamp bulb glass surface with bare hands or allow oil or grease to get on it. Do not
touch the headlamp bulb just after the headlamp is turned off, because it is very hot.

●

Install the xenon headlamp bulb socket correctly. If it is installed
improperly, high-voltage leak or corona discharge may occur
that can melt the bulb, connector, and housing. Do not illuminate
the xenon headlamp bulb out of the headlamp housing. Doing
so can cause fire and harm your eyes.

●

When the bulb has burned out, wrap it in a thick vinyl bag and
discard. Do not break the bulb.

●

Leaving the bulb removed from the headlamp housing for a long
period of time can deteriorate the performance of the lens and
reflector (dirt, clouding). Always prepare a new bulb and have it
on hand when replacing the bulb.

●

When adjusting the headlamp aiming, turn the aiming adjust-
ment screw only in the tightening direction. (If it is necessary to loosen the screw, first fully loosen the
screw, and then turn it in the tightening direction.)

●

Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.

PKIB7344E

EL-3422D

HEADLAMP - XENON TYPE -

LT-5

HEADLAMP - XENON TYPE -

PFP:26010

Component Parts and Harness Connector Location

NKS002ND

System Description

NKS002NE

The control of headlamp system operation is dependent upon the position of the lighting switch. When the
lighting switch is placed in the 2ND position, BCM (body control module) receives input signal requesting the
headlamps (and tail lamps) illuminate. This input signal is communicated to IPDM E/R (intelligent power distri-
bution module engine room) through CAN communication lines. The CPU (central processing unit) located in
the IPDM E/R controls headlamp high relay and headlamp low relay. 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 headlamp bulb comes
out, and a high beam and a low beam are changed.

OUTLINE

Power is supplied at all times

●

to ignition relay, located in IPDM E/R

●

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

●

to headlamp low 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 F, located in fuse, fusible link and relay box)

●

to BCM terminal 55,

●

through 10A fuse [No. 18, located in fuse block (J/B)]

PKIB6095E

LT-6

HEADLAMP - XENON TYPE -

●

to BCM terminal 42,

●

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

●

to combination meter terminal 21.

With the ignition switch in the ON or START position, power is supplied

●

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

●

through 10A 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 terminals 22 and 23.

With the ignition switch in the 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 terminal 52

●

through grounds M30 and M66,

●

to IPDM E/R terminals 38 and 60

●

through grounds E17 and E43,

●

to combination meter terminals 1, 24 and 25

●

through grounds M30 and M66.

HEADLAMP OPERATION
Low Beam Operation

With the lighting switch in 2ND position, the BCM receives input signal requesting headlamps to illuminate.
This input signal is communicated to IPDM E/R across CAN communication lines. The CPU located in the
IPDM E/R controls 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 3,

●

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

●

through IPDM E/R terminal 30

●

to front combination lamp LH terminal 3.

Ground is supplied

●

to front combination lamp RH and LH terminals 4

●

through grounds E17 and E43.

With power and ground supplied, low beam headlamps illuminate.

High Beam Operation/Flash-to-Pass Operation

With the lighting switch in 2ND position and placed in HIGH BEAM or PASSING position, the BCM receives
input signal requesting the headlamp high beams to illuminate. This input signal is communicated to IPDM E/
R through the CAN communication lines. The CPU located in the IPDM E/R controls headlamp high relay and
headlamp low relay, 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 3,

●

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

●

through IPDM E/R terminal 30

●

to front combination lamp LH terminal 3,

●

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

●

through IPDM E/R terminal 27

●

to front combination lamp RH terminal 2,

●

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

HEADLAMP - XENON TYPE -

LT-7

●

through IPDM E/R terminal 28

●

to front combination lamp LH terminal 2.

Ground is supplied

●

to front combination lamp RH and LH terminals 8

●

through grounds E17 and E43.

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 headlamp bulb comes
out, and a high beam and a low beam are changed.
The high beam indicator illuminates when combination meter receives input signal requesting high beam indi-
cator to illuminate. This is communicated to BCM through the CAN communication lines.

COMBINATION SWITCH READING FUNCTION

Refer to

BCS-3, "COMBINATION SWITCH READING FUNCTION"

EXTERIOR LAMP BATTERY SAVER CONTROL

When the lighting switch is in the 2ND position 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, and 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-51, "System Description"

VEHICLE SECURITY SYSTEM

The vehicle security system will flash the high beams if the system is triggered. Refer to

BL-188, "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 Description

NKS002NF

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 Unit

NKS002NG

Refer to

LAN-47, "CAN System Specification Chart"

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