INFINITI QX4 2005 Factory Service Manual

LT-104
STOP LAMP
Revision: October 20052005 QX56
Wiring Diagram — STOP/L —EKS00BAE
WKWA2491E

STOP LAMP
LT-105
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LT
Revision: October 20052005 QX56
High-Mounted Stop LampEKS00BAF
BULB REPLACEMENT
The high-mounted stop lamp bulbs are not serviceable.
REMOVAL AND INSTALLATION
1. Remove back door upper finisher.
2. Remove 2 nuts and remove high-mounted stop lamp.
Installation is in the reverse order of removal.
Stop LampEKS00BAG
BULB REPLACEMENT
The stop lamp bulbs are not serviceable separately. Replace rear combination lamp. Refer to LT-122,
"Removal and Installation" .
REMOVAL AND INSTALLATION
Refer to LT-122, "Removal and Installation" in REAR COMBINATION LAMP.
WKIA1397E

LT-106
BACK-UP LAMP
Revision: October 20052005 QX56
BACK-UP LAMPPFP:26550
Wiring Diagram — BACK/L —EKS00BAH
WKWA4549E

BACK-UP LAMP
LT-107
C
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MA
B
LT
Revision: October 20052005 QX56
Bulb ReplacementEKS00BAI
1. Remove back door lower finisher. Refer to EI-42, "Removal and Installation" .
2. Turn bulb socket counterclockwise and remove it from the lamp housing.
3. Pull bulb from socket.
Installation is in the reverse order of removal.
Removal and InstallationEKS00BAJ
1. Remove license lamp finisher. Refer to EI-24, "Removal and Installation" .
2. Carefully release tabs to remove back up lamp housing from
license plate finisher.
Installation is in the reverse order of removal.
WKIA1898E

LT-108
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: October 20052005 QX56
PARKING, LICENSE PLATE AND TAIL LAMPSPFP:26550
Component Parts and Harness Connector LocationEKS00BAK
System DescriptionEKS00BAL
Control of the parking, license plate, and tail lamp operation is dependent upon the position of the lighting
switch (combination switch). When the lighting switch is placed in the 1ST position, the BCM (body control
module) receives input signal requesting the parking, license plate, side marker and tail lamps to illuminate.
This input signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across
the CAN communication lines. The CPU (central processing unit) of the IPDM E/R controls the tail lamp relay
coil. This relay, when energized, directs power to the parking, license plate and tail lamps, which then illumi-
nate.
Power is supplied at all times

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

to tail lamp relay, located in the IPDM E/R, and

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

to CPU of the IPDM E/R, and

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

to BCM terminal 70.
With the ignition switch in the 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
Ground is supplied

to BCM terminal 67

through grounds M57, M61 and M79, and

to IPDM E/R terminals 38 and 59

through grounds E9, E15 and E24.
WKIA3468E

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-109
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Revision: October 20052005 QX56
OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the parking, license plate, side marker and tail lamps to illuminate. This input signal is
communicated to the IPDM E/R across the CAN communication lines. The CPU of the IPDM E/R controls the
tail lamp relay coil, which when energized, directs power

through 10 A fuse (No. 37, located in the IPDM E/R)

through IPDM E/R terminal 57

to front combination lamp LH and RH terminal 3

to license plate lamps terminal + and

to rear combination lamp LH and RH terminal 3.
Ground is supplied

to front combination lamp LH and RH terminal 4

through grounds E9, E15 and E24, and

to rear combination lamp LH terminal 1

through grounds B7 and B19, and

to rear combination lamp RH terminal 1 and

to license plate lamps terminal –

through grounds B117 and B132.
With power and ground supplied, the parking, license plate and tail lamps illuminate.
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 1ST (or 2ND) position, and the ignition switch is turned
from ON or ACC to OFF, the battery saver control feature is activated.
Under this condition, the parking, license and tail lamps remain illuminated for 5 minutes, then the parking,
license plate and tail lamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionEKS00BAM
Refer to LAN-5, "CAN COMMUNICATION" .

LT-110
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: October 20052005 QX56
SchematicEKS00BAN
WKWA2493E

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-111
C
D
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LT
Revision: October 20052005 QX56
Wiring Diagram — TAIL/L —EKS00BAO
WKWA2414E

LT-112
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: October 20052005 QX56
WKWA2494E

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-113
C
D
E
F
G
H
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MA
B
LT
Revision: October 20052005 QX56
WKWA1209E