Infiniti M45 (Y34). Manual - part 624

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.

General Precautions for Service Operations

AKS002EU

●

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 long
period of time can deteriorate 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 adjusting
screw only in the tightening direction. (If it is necessary to turn the screw in loosening direction, first fully
loosen the screw, and then turn it in tightening direction.)

●

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

PKIA0183E

PKIA2246E

PRECAUTIONS

LT-5

Wiring Diagrams and Trouble Diagnosis

AKS002EV

When you read wiring diagrams, refer to the following:

●

Refer to

GI-14, "How to Read Wiring Diagrams"

in GI section

●

Refer to

PG-2, "POWER SUPPLY ROUTING"

for power distribution circuit in PG section

When you perform trouble diagnosis, refer to the following:

●

Refer to

GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"GI-10, "HOW TO FOL-

LOW TEST GROUPS IN TROUBLE DIAGNOSES"

in GI section

●

Refer to

GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident"

in GI section

LT-6

HEADLAMP (FOR USA)

PFP:26010

Component Parts and Harness Connector Location

AKS002EW

System Description

AKS002EX

The headlamp operation is controlled by the lighting switch which is built into the spiral cable and headlamp
battery saver control unit. And the headlamp battery saver system is controlled by the headlamp battery saver
control unit and BCM.

OUTLINE

Power is supplied at all times

●

to headlamp relay-1 terminal 2,

●

to headlamp relay-1 terminal 3

●

through 20A fuse [No. 57, located in fuse, fusible link and relay block (J/B)],

●

to headlamp relay-1 terminal 7

●

through 20A fuse [No. 55, located in fuse, fusible link and relay block (J/B)],

●

to headlamp relay-2 terminals 1 and 3

●

through 15A fuse [No. 73, located in fuse, fusible link and relay block (J/B)],

●

to headlamp battery saver control unit terminal 7

●

through 10A fuse [No. 6, located in fuse block (J/B) No. 1], and

●

to BCM terminal 105

●

through 10A fuse [No. 3, located in fuse block (J/B) No. 1].

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

●

to headlamp battery saver control unit terminal 1

PKIA6062E

Content .. 622 623 624 625 ..