2006 INFINITI QX56 headlamp

HEADLAMP (FOR USA)LT-31
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HEADLAMP (INNER SIDE), FOR HIGH BEAM
Removal
1. Turn headlamp switch OFF.
2. Disconnect headlamp electrical connector.
3. Turn the bulb counterclockwise to remove it.
Installation
Installation is in the reverse order of removal.
FRONT PARKING LAMP (INNER OR OUTER)
Removal
1. Turn the bulb socket counterclockwise to unlock it.
2. Pull the bulb to remove it from the socket.
Installation
Installation is in the reverse order of removal.
SIDE MARKER LAMP (FRONT)
Removal
1. Position fender protector aside.
2. Turn the side marker lamp (front) bulb socket counterclockwise and remove side marker lamp (front) bulb
socket.
3. Pull to remove side marker lamp (front) from the side marker lamp (front) bulb socket.
Installation
Installation is in the reverse order of removal.
Removal and InstallationEKS00B8B
FRONT COMBINATION LAMP ASSEMBLY
CAUTION:

Disconnect battery negative terminal before touching xenon bulb or headlamp wiring harness
assembly.

Turn headlamp switch OFF before disconnecting headlamp harness connector.

Do not touch bulb by hand right after being turned off. Burning may result.

Do not touch the glass of bulb directly by hand. Keep grease and other oily substances away from
it.

Do not turn xenon bulb ON when xenon bulb is removed from front combination lamp assembly.

After installing the bulb, be sure to install the bulb socket securely to ensure watertightness.

Do not leave bulb out of front combination lamp assembly for a long time because dust, moisture,
smoke, etc. may affect the performance of the lamp. When replacing bulb, be sure to replace it
with a new one.
Removal
1. Disconnect battery negative terminal.
2. Disconnect front combination lamp assembly.
3. Remove front fascia. Refer to EI-13, "
FRONT BUMPER" .
4. Remove front combination lamp assembly bolts.
5. Remove front combination lamp assembly.
WKIA1860E

LT-32
HEADLAMP (FOR USA)
Revision: November 20092006 QX56
INSTALLATION
Installation is in the reverse order of removal.
Disassembly and AssemblyEKS00B8C
FRONT COMBINATION LAMP ASSEMBLY
DISASSEMBLY
1. Remove ballast.
2. Release xenon bulb retaining spring and remove xenon bulb.
3. Turn high beam bulb counterclockwise to unlock and remove high beam bulb.
4. Turn parking lamp bulb (inner) socket counterclockwise to unlock and remove parking lamp bulb.
5. Turn parking lamp bulb (outer) socket counterclockwise to unlock and remove parking lamp bulb.
6. Turn side marker lamp (front) bulb socket counterclockwise to unlock and remove side marker lamp (front)
bulb.
ASSEMBLY
Assembly is in the reverse order of disassembly.
WKIA1861E
1. Parking lamp bulb (outer) 2. Parking lamp bulb (inner), if equipped 3. Headlamp bulb (high beam)
4. Headlamp assembly 5. Xenon bulb (low beam) 6. Side marker lamp (front) bulb
7. Ballast 8. Wiring harness assembly

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -LT-33
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HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -PFP:26010
Component Parts and Harness Connector LocationEKS00B8D
WKIA3551E

LT-34
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
Revision: November 20092006 QX56
System DescriptionEKS00B8E
Daytime light system turns on daytime light lamps while driving. Daytime light lamps are not turned on if
engine is activated with parking brake applied. Release parking brake to turn on daytime light lamps. The
lamps turn off when lighting switch is in the 2ND position or AUTO position (Headlamp is "ON") and when light-
ing switch is in the PASSING position. (Daytime light lamps are not turned off only by parking brake itself.)
A parking brake signal and engine run or stop signal are sent to BCM (body control module) by CAN commu-
nication line.
OUTLINE
Power is supplied at all times

to ignition relay, located in the IPDM E/R (intelligent power distribution module engine room), and

through 50A fusible link (letter f , located in the fuse and fusible link box)

to BCM terminal 70, and

through 20A fuse (No. 53, located in the IPDM E/R)

to CPU (central processing unit) of the IPDM E/R, and

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

to combination meter terminal 8, and

through 10A fuse (No. 45, located in the IPDM E/R)

to daytime light relay terminals 2 and 5.
When the ignition switch is in ON or START position, power is supplied

to ignition relay, located in the IPDM E/R, and

through 10A fuse (No. 59, located in the fuse and relay box)

to BCM terminal 38, and

through 10A fuse [No. 14, located in the fuse block (J/B)]

to combination meter terminal 24.
Ground is supplied

to BCM terminal 67 and

to combination meter terminal 17

through grounds M57, M61 and M79.
DAYTIME LIGHT OPERATION
With the engine running, the lighting switch in the OFF or 1ST position and parking brake released, the IPDM
E/R receives input requesting the daytime lights illuminate. This input is communicated across the CAN com-
munication lines. The CPU of the IPDM E/R controls the daytime light relay coil. When energized, this relay
directs power

through daytime light relay terminal 3

to front combination lamp LH terminal 2

through front combination lamp LH terminal 6

to IPDM E/R terminal 55

through 10A fuse (No. 35, located in the IPDM E/R)

through 10A fuse (No. 34, located in the IPDM E/R)

through IPDM E/R terminal 56

to front combination lamp RH terminal 6.
Ground is supplied

to front combination lamp RH terminal 2

through grounds E9, E15 and E24.
With power and ground supplied, the daytime lights illuminate. The high beam headlamps are now wired in
series and illuminate at a reduced intensity.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -LT-35
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AUTO LIGHT OPERATION
For auto light operation, refer to LT- 4 8 , "System Description" in AUTO LIGHT SYSTEM.
CAN Communication System DescriptionEKS00B8F
Refer to LAN-26, "CAN COMMUNICATION" .

LT-36
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
Revision: November 20092006 QX56
SchematicEKS00B8G
WKWA3641E

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -LT-37
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Wiring Diagram — DTRL —EKS00B8H
WKWA3642E

LT-38
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
Revision: November 20092006 QX56
WKWA3643E