2008 INFINITI QX56 turn signal bulb

EXL-3
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Bulb Replacement ........
.........................................
113
Removal and Installation .......................................114
Disassembly and Assembly ................................ ..114
AUTO LIGHT SYSTEM ....................................116
Removal and Installation .......................................116
FRONT FOG LAMP ........................................ ..117
Bulb Replacement .................................................117
Removal and Installation .......................................117
LIGHTING & TURN SIGNAL SWITCH .......... ..119
Removal and Installation .......................................119
HAZARD SWITCH .......................................... ..120
Removal and Installation .......................................120
PUDDLE LAMP .............................................. ..121
Removal and Installation .......................................121
LICENSE PLATE LAMP .................................122
Bulb Replacement ............................................... ..122
Removal and Installation .......................................122
STOP LAMP ....................................................123
Bulb Replacement .................................................123
Removal and Installation .......................................123
REAR COMBINATION LAMP .........................124
Bulb Replacement .................................................124
Removal and Installation .......................................124
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .......................................... .
125
BULB SPECIFICATIONS ................................125
Headlamp ............................................................ ..125
Exterior Lamp ........................................................125
Revision: March 2010 2008 QX56

TURN SIGNAL LAMP CIRCUITEXL-37
< COMPONENT DIAGNOSIS >
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TURN SIGNAL LAMP CIRCUIT
DescriptionINFOID:0000000001547137
The BCM monitors inputs from the combination switch to determine when to activate the turn signals. The
BCM outputs voltage direction to the left and right turn signals during turn signal operation or both during haz-
ard warning operation. The BCM sends a turn signal i ndicator request to the combination meter via the CAN
communication lines.
The BCM performs the fast flasher operation (fail-safe) if any bulb or harness of the turn signal lamp circuit is
open.
NOTE:
Turn signal lamp blinks at normal speed when using the hazard warning lamp.
Component Function CheckINFOID:0000000001547138
1.CHECK TURN SIGNAL LAMP
CONSULT-III
1. Select "FLASHER" of BCM (F LASHER) active test item.
2. With operating the test items, chec k that the turn signal lamp blinks.
Does the turn signal lamp blink?
YES >> Turn signal lamp circuit is normal.
NO >> Refer to EXL-37, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001547139
1.CHECK TURN SIGNAL LAMP BULB
Check the applicable lamp bulb to be sure the proper bulb standard is in use and the bulb is not open.
Is the bulb OK?
YES >> GO TO 2
NO >> Replace the bulb.
2.CHECK TURN SIGNAL LA MP OUTPUT VOLTAGE
1. Turn the ignition switch OFF.
2. Disconnect the front turn/fog lamp connector or the rear combi- nation lamp connector.
3. Turn the ignition switch ON.
4. With turn signal switch operating, check the voltage between the BCM harness connector M20 and ground.
Is voltage reading as specified?
YES >> GO TO 3
NO >> Replace BCM. Refer to BCS-55, "
Removal and Installation".
LH : Turn signal lamp LH blinking
RH : Turn signal lamp RH blinking
OFF : The turn signal lamp OFF
(+)
(−)V olt a g e
Connector Terminal
M20 LH 60
Ground
RH 61
ALLIA0402ZZ
PKID0926E
Revision: March 2010 2008 QX56

EXTERIOR LIGHTING SYSTEM SYMPTOMSEXL-101
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Symptom TableINFOID:0000000001547153
CAUTION:
Perform the self-diagnosis with CONS ULT-III before the symptom diagnosis. Perform the trouble diag-
nosis if any DTC is detected.
Symptom Possible causeInspection item
Headlamp does not
switch to the high beam. One side•Fuse
• Harness between IPDM E/R
and the front combination lamp
• Front combination lamp
(High beam relay)
• IPDM E/R Headlamp (HI) circuit
Refer to
EXL-28
.
Both sides Symptom diagnosis
"BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM"
Refer to EXL-104
.
High beam indicator lamp is not turned ON.
(Headlamp switches to the high beam.) • Combination meter
•BCM• Combination meter.
Data monitor "HI-BEAM IND"
• BCM (HEAD LAMP) Active test "HEADLAMP"
Headlamp does not
switch to the low beam. One side
Front combination lamp (Low
beam relay)
—
Both sides • Combination switch
• Harness between the combina-
tion switch and BCM
•BCM Combination switch
Refer to
BCS-36
.
High beam request signal
•BCM
• IPDM E/R IPDM E/R
Data monitor "HL HI REQ"
IPDM E/R —
Headlamp does not turn
ON. One side•Fuse
•Bulb
• Harness between IPDM E/R
and the front combination lamp
• Front combination lamp
• IPDM E/R Headlamp (LO) circuit
Refer to
EXL-30
.
Both sides Symptom diagnosis
"BOTH SIDE HEADLAMPS (LO) ARE NOT TURNED ON"
Refer to EXL-105, "
Description".
Headlamp does not turn
OFF. When the ignition
switch is turned ON
•BCM
• Combination switch Combination switch
Refer to
BCS-36
.
The ignition switch is
turned OFF (After acti-
vating the battery sav-
er). IPDM E/R
—
Headlamp is not turned ON/OFF with the lighting
switch AUTO. • Combination switch
• Harness between the combina-
tion switch and BCM
•BCM Combination switch
Refer to
BCS-36
.
• Optical sensor
• Harness between the optical sensor and BCM
•BCM Optical sensor
Refer to
EXL-40
.
Revision: March 2010 2008 QX56

EXL-102
< SYMPTOM DIAGNOSIS >
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Daytime light system does not activate.• Either high beam bulb
• Parking brake switch
• Combination switch
•BCM
• IPDM E/R
• Daytime light relay
• Harness between IPDM E/R
and daytime light relay. Daytime light system description.
Refer to EXL-9, "System Descrip-
tion".
Front fog lamp is not
turned ON. One side
• Front fog lamp bulb
• Harness between IPDM E/R
and the front combination lamp
• Front combination lamp
• IPDM E/R Front fog lamp circuit
Refer to EXL-32
.
Both sides Symptom diagnosis
"BOTH SIDE FRONT FOG LAMPS ARE NOT TURNED ON"
Refer to
EXL-107
.
Parking lamp is not turned
ON. One side•Fuse
• Parking lamp bulb
• Harness between IPDM E/R
and the front/rear combination
lamp
• Front/rear combination lamp
• IPDM E/R Parking lamp
circuit
Refer to EXL-34
.
Both sides Symptom diagnosis
"PARKING, LICENSE PLATE AND TAIL LAMPS ARE NOT TURNED
ON"
Refer to
EXL-106
.
Turn signal lamp does not
blink. Indicator lamp is nor-
mal.
(The applicable side
performs the high flash-
er activation).• Harness between BCM and
each turn signal lamp
• Turn signal lamp bulb
• Door mirror Turn signal lamp circuit
Refer to EXL-37
.
Turn signal indicator lamp
does not blink. One side
Combination meter —
Both sides
(Always) • Turn signal indicator lamp sig-
nal
• Combination meter
•BCM • Combination meter.
Data monitor "TURN IND"
•BCM (FLASHER)
Active test "FLASHER"
Both sides
(Does blink when acti-
vating the hazard warn-
ing lamp with the
ignition switch OFF) • The combination meter power
supply and the ground circuit
• Combination meter Combination meter
Power supply and the ground circuit
Refer to MWI-30
.
Symptom
Possible causeInspection item
Revision: March 2010 2008 QX56

BULB SPECIFICATIONSEXL-125
< SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
BULB SPECIFICATIONS
HeadlampINFOID:0000000001547324
*: Always check with the Parts Department for the latest parts information.
Exterior LampINFOID:0000000001547325
*: Always check with the Parts Department for the latest parts information. Item
Wattage (W)*
Low 35
High 60/65
ItemWattage (W)*
Front combination lamp Parking lamp (inner)
7
Parking lamp (outer) 7
Side marker lamp (front) 7
Rear combination lamp Stop/Tail lamp
LED*
Side marker lamp (rear) *
Turn signal lamp 27
Back-up lamp *
Turn/fog lamp Fog
55
Turn 21
Puddle lamp 8
License plate lamp *
High-mounted stop lamp LED*
Revision: March 2010 2008 QX56

INTERIOR ROOM LAMP CONTROL CIRCUITINL-17
< COMPONENT DIAGNOSIS >
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INTERIOR ROOM LAMP CONTROL CIRCUIT
DescriptionINFOID:0000000001601390
Controls the following interior room lamps (ground side) by PWM signal
• Puddle lamps
• Front room/map lamp assembly
• Personal lamp 2nd row
• Personal lamp 3rd row
NOTE:
PWM signal control period is approximately 250 Hz (in the gradual brightening/dimming).
Component Function CheckINFOID:0000000001601391
CAUTION:
Before performing the diagnosis, check that the following is normal.
• Battery saver output/power supply
• Front room/map lamp bulbs
• Personal lamp bulbs
• Puddle lamp bulbs
1.CHECK INTERIOR ROOM LAMP CONTROL FUNCTION
CONSULT-III
1. Switch the front room/map lamp assembly switch to DOOR.
2. Turn ignition switch ON.
3. Select “INT LAMP” of BCM (INT LAMP) active test item.
4. While operating the test item, check that each interi or room lamp turns ON/OFF (gradual brightening/dim-
ming).
Is the inspection result normal?
YES >> Interior room lamp control circuit is normal.
NO >> Refer to INL-17, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001601392
1.CHECK INTERIOR ROOM LAMP CONTROL OUTPUT
CONSULT-III
1. Switch the front room/map lamp assembly switch to DOOR.
2. Turn ignition switch ON.
3. Select “INT LAMP” of BCM (INT LAMP) active test item.
4. While operating the test item, check voltage between BCM con- nector M20 terminal 63 and ground.
Is the inspection result normal?
YES >> Interior room lamp control circuit is operating normally.
Fixed ON>>GO TO 3
Fixed OFF>>GO TO 2
2.CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT ON : Interior room lamp gradual brightening
OFF : Interior room lamp gradual dimming
(+)
(-) INT LAMP Voltage
Connector Terminal
M20 63 Ground ON
0V
OFF Battery voltage
ALLIA0410GB
Revision: March 2010 2008 QX56