2011 INFINITI QX56 turn signal

EXL-114
< SYMPTOM DIAGNOSIS >[XENON TYPE]
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Each lamp is not turned ON/OFF with lighting switch
AUTO. Combination switch
 Harness between combination
switch and BCM
BCM Combination switch
Refer to
BCS-80, "
Symptom Table".
 Optical sensor
 Harness between optical sen- sor and BCM
BCM Optical sensor
Refer to
EXL-102, "
Component
Function Check".
Front fog lamp is not
turned ON. One side
 Front fog lamp bulb
 Harness between IPDM E/R
and front fog lamp
 Front fog lamp
 IPDM E/R Front fog lamp circuit
Refer to
EXL-94, "
Component
Function Check".
Both sides Symptom diagnosis
“BOTH SIDE FRONT FOG LAMPS ARE NOT TURNED ON”
Refer to
EXL-120, "
Diagnosis Procedure".
Parking lamp is not turned ON.  Parking lamp bulb
 Harness between IPDM E/R
and front combination lamp
 Front combination lamp
 IPDM E/R Parking lamp
circuit
Refer to EXL-96, "
Component
Function Check".
Front side marker lamp is not turned ON.  Front side marker lamp bulb
 Harness between IPDM E/R
and front combination lamp
 Front combination lamp
 IPDM E/R Front side marker lamp circuit
Refer to
EXL-98, "
Component
Function Check".
Tail lamp or rear side
marker lamp is not turned
ON. Body side
 Harness between IPDM E/R
and rear combination lamp
 Rear combination lamp Tail lamp circuit (body side)
Refer to
EXL-109, "
BODY SIDE :
Component Function Check".
Back door side  Harness between IPDM E/R
and tail lamp (back door side)
 Tail lamp (back door side) Tail lamp circuit (back door side)
Refer to
EXL-110, "
BACK DOOR
SIDE : Component Function
Check".
License plate lamp is not turned ON.  License plate lamp bulb
 Harness between IPDM E/R
and license plate lamp
 License plate lamp License plate lamp circuit
Refer to
EXL-112, "
Component
Function Check".
Tail lamp, rear side marker lamp and license plate
lamp are not turned ON. Fuse
 Harness between IPDM E/R
and rear combination lamp (LH)
 IPDM E/R Tail lamp circuit (body side)
Refer to
EXL-109, "
BODY SIDE :
Component Function Check".
 Parking lamp, side marker lamp, tail lamp and li- cense plate lamp are not turned ON.
 Parking lamp, side marker lamp, tail lamp and li- cense plate lamp are not turned OFF.
(Each illumination is turned ON/OFF.) Symptom diagnosis
“PARKING, LICENSE PLATE, SIDE MARKER LAMP AND TAIL LAMPS
ARE NOT TURNED ON”
Refer to
EXL-119, "
Diagnosis Procedure".
Tail lamp indicator is not turned ON.
(Parking, side marker lamp and tail lamps are turned
ON.) Combination meter Combination meter
Data monitor “LIGHT IND”
 BCM (HEAD LAMP) Active test “TAIL LAMP”
Turn signal lamp does not
blink. Indicator lamp is nor-
mal.
(Applicable side per-
forms the high flasher
activation.)
 Harness between BCM and
each turn signal lamp
 Turn signal lamp bulb Turn signal lamp circuit
Refer to
EXL-99, "
Component
Function Check".
Indicator lamp is includ-
ed.  Combination switch
 Harness between combination
switch and BCM
BCM Combination switch
Refer to
BCS-80, "
Symptom Table".
Symptom Possible cause Inspection item
Revision: 2010 May2011 QX56

EXTERIOR LIGHTING SYSTEM SYMPTOMSEXL-115
< SYMPTOM DIAGNOSIS > [XENON TYPE]
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Turn signal indicator lamp
does not blink.
(Turn signal i lamp is nor-
mal.) One side Combination meter —
Both sides
(Always)
 Turn signal indicator lamp sig-
nal
-BCM
 Combination meter  Combination meter
Data monitor “TURN IND”
 BCM (FLASHER) Active test “FLASHER”
Both sides
(Only when activating
hazard warn ing lamp
with the ignition switch
OFF)  Combination meter power sup-
ply and ground circuit
 Combination meter Combination meter
Power supply and ground circuit
Refer to
MWI-64, "
COMBINATION
METER : Diagnosis Procedure".
 Hazard warning lamp does not activate.
 Hazard warning lamp continues activating.
(Turn signal is normal.)  Hazard switch
 Harness between hazard
switch and BCM
BCM Hazard switch
Refer to
EXL-105, "
Component
Function Check".
AFS control does not activate.  Harness between AFS control
unit and AFS switch.
 AFS control unit AFS switch
Refer to
EXL-107, "
Component
Function Check".
Headlamp auto aiming does not activate.
(AFS is normal.)  Harness between AFS control
unit and aiming motor
 Front combination lamp (Aiming motor)
 AFS control unit Headlamp levelizer circuit
Refer to
EXL-91, "
Component
Function Check".
AFS OFF indicator lamp is not turned ON.  AFS OFF indicator lamp signal
- Combination meter
- AFS control unit
 Combination meterCombination meter
Data monitor “AFS OFF IND”
Symptom Possible cause Inspection item
Revision: 2010 May2011 QX56

BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM
EXL-117
< SYMPTOM DIAGNOSIS > [XENON TYPE]
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BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM
DescriptionINFOID:0000000006213982
Both side headlamps (HI) are not turned ON when setting to the lighting switch HI or PASS.
Diagnosis ProcedureINFOID:0000000006213983
1.COMBINATION SWITCH INSPECTION
Check combination switch. Refer to BCS-80, "
Symptom Table".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning part.
2.CHECK HEADLAMP (HI) REQUEST SIGNAL INPUT
CONSULT-III DATA MONITOR
1. Select “HL HI REQ” of IPDM E/R data monitor item.
2. With operating the lighting switch, check the monitor status.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
3.HEADLAMP (HI) CIRCUIT INSPECTION
Check headlamp (HI) circuit. Refer to EXL-86, "
Component Function Check".
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace the malfunctioning part.
Monitor item Condition Monitor status
HL HI REQ Lighting switch
(2ND) HI or PASS On
LO Off
Revision: 2010 May2011 QX56

EXL-118
< SYMPTOM DIAGNOSIS >[XENON TYPE]
BOTH SIDE HEADLAMPS (LO) ARE NOT TURNED ON
BOTH SIDE HEADLAMPS (L
O) ARE NOT TURNED ON
DescriptionINFOID:0000000006213984
Both side headlamps (LO) are not turned ON in any condition.
Diagnosis ProcedureINFOID:0000000006213985
1.CHECK COMBINATION SWITCH
Check combination switch. Refer to BCS-80, "
Symptom Table".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning part.
2.CHECK HEADLAMP (LO) REQUEST SIGNAL INPUT
CONSULT-III DATA MONITOR
1. Select “HL LO REQ” of IPDM E/R data monitor item.
2. With operating the lighting switch, check the monitor status.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
3.HEADLAMP (LO) CIRCUIT INSPECTION
Check headlamp (LO) circuit. Refer to EXL-88, "
Component Function Check".
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace the malfunctioning part.
Monitor item Condition Monitor status
HL LO REQ Lighting switch 2ND On
OFF Off
Revision: 2010 May2011 QX56

PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMPS ARE NOT TURNED ON
EXL-119
< SYMPTOM DIAGNOSIS > [XENON TYPE]
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PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMPS ARE NOT
TURNED ON
DescriptionINFOID:0000000006213986
The parking, license plate, tail lamps and side marker are not turned ON in any condition.
Diagnosis ProcedureINFOID:0000000006213987
1.CHECK FUSE
Check that the following fuse is fusing.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the applicable circuit. And then replace the fuse.
2.COMBINATION SWITCH INSPECTION
Check combination switch. Refer to BCS-80, "
Symptom Table".
Is the combination switch normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunctioning part.
3.CHECK TAIL LAMP RELAY REQUEST SIGNAL INPUT
CONSULT-III DATA MONITOR
1. Select “TAIL & CLR REQ” of IPDM E/R data monitor item.
2. With operating the lighting switch, check the monitor status.
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
Location Fuse No. Capacity
IPDM E/R #46 10 A
#47 10 A
Monitor item Condition Monitor status
TAIL & CLR REQ Lighting switch 1ST On
OFF Off
Revision: 2010 May2011 QX56

EXL-120
< SYMPTOM DIAGNOSIS >[XENON TYPE]
BOTH SIDE FRONT FOG
LAMPS ARE NOT TURNED ON
BOTH SIDE FRONT FOG LA MPS ARE NOT TURNED ON
DescriptionINFOID:0000000006213988
The front fog lamps are not turned ON in any condition.
Diagnosis ProcedureINFOID:0000000006213989
1.CHECK FUSE
Check that the following fuse is fusing.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the applicable circuit. And then replace the fuse.
2.COMBINATION SWITCH INSPECTION
Check combination switch. Refer to BCS-80, "
Symptom Table".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunctioning part.
3.CHECK FRONT FOG LAMP REQUEST SIGNAL INPUT
CONSULT-III DATA MONITOR
1. Select “FR FOG REQ” of IPDM E/R data monitor item.
2. With operating the front fog lamp switch, check the monitor status.
Is the item status normal?
YES >> GO TO 4.
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
4.FRONT FOG LAMP CIRCUIT INSPECTION
Check the front fog lamp circuit. Refer to EXL-94, "
Component Function Check".
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace the malfunctioning part.
Unit Location Fuse No. Capacity
Front fog lamp IPDM E/R #50 15 A
Monitor item Condition Monitor status
FR FOG REQ Front fog lamp switch
(With lighting switch 1ST)ON On
OFF Off
Revision: 2010 May2011 QX56

FRONT COMBINATION LAMPEXL-125
< REMOVAL AND INSTALLATION > [XENON TYPE]
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REMOVAL AND INSTALLATION
FRONT COMBINATION LAMP
Exploded ViewINFOID:0000000006369463
REMOVAL
DISASSEMBLY
CAUTION:
HID control unit and xenon bul b socket cannot be disassembled.
Removal and InstallationINFOID:0000000006369464
REMOVAL
CAUTION:
1. Front combination lamp
JMLIA1115ZZ
1. Headlamp housing assembly 2. Retaining spring 3. Xenon bulb
4. Side marker lamp bulb 5. Side marker lamp bulb socket 6. Xenon bulb socket
7. Seal packing 8. Resin cap 9. Parking lamp bulb socket
10. Parking lamp bulb 11. Front turn signal lamp bulb 12. Front turn signal lamp bulb socket
13. HID control unit 14. Seal packing 15. Bumper bracket
Refer to GI-4, "
Components" for symbols not described above.
JMLIA1320ZZ
Revision: 2010 May2011 QX56

EXL-126
< REMOVAL AND INSTALLATION >[XENON TYPE]
FRONT COMBINATION LAMP
Disconnect the battery negative terminal or remove the fuse.
1. Remove front grille. Refer to
EXT-19, "
Removal and Installation".
2. Remove front bumper molding. Refer to EXT-13, "
Removal and Installation".
3. Remove front bumper fascia. Refer to EXT-13, "
Removal and Installation".
4. Remove headlamp mounting bolts.
5. Pull out headlamp assembly forward vehicle.
6. Disconnect connectors before removing headlamp assembly.
INSTALLATION
Install in the reverse order of removal.
NOTE:
After installation, perform aiming adjustment. Refer to EXL-121, "
description".
ReplacementINFOID:0000000006369465
CAUTION:
 Disconnect the battery negative terminal or remove the fuse.
 After installing the bulb, install the resin cap and the bulb socket securely for watertightness.
 Never touch the glass of bu lb directly by hand. Keep grease an d other oily matters away from it.
Never touch bulb by hand while it is lit or right after being turned off.
 Never leave bulb out of lamp reflector for a long ti me because dust, moisture smoke, etc. may affect
the performance of lamp. When replacing bulb, be sure to replace it with new one.
HEADLAMP BULB (HI/LO)
1. Remove fender protector. Refer to EXT-23, "FENDER PROTECTOR : Removal and Installation".
2. Rotate resin cap counterclockwise and unlock it.
3. Rotate bulb socket counterclockwise and unlock it.
4. Remove retaining spring lock. And then remove bulb from headlamp housing assembly.
CAUTION:
Never break the xenon bulb ceramic tube when replacing
the bulb.
PARKING LAMP BULB
1. Remove hood switch*.
*:When replace a right.
2. Rotate bulb socket counterclockwise and unlock it.
3. Remove bulb from bulb socket.
FRONT TURN SIGNAL LAMP BULB
1. Remove hood switch*.
*:When replace a right.
2. Rotate bulb socket counterclockwise and unlock it.
3. Remove bulb from bulb socket.
SIDE MARKER LAMP BULB
1. Remove fender protector. Refer to EXT-23, "FENDER PROTECTOR : Removal and Installation"
2. Rotate bulb socket counterclockwise and unlock it.
3. Remove bulb from bulb socket.
JPLIA0919ZZ
Revision: 2010 May2011 QX56