Head lamp INFINITI QX56 2011 Factory Service Manual

EXTERIOR LIGHTING SYSTEM SYMPTOMSEXL-113
< SYMPTOM DIAGNOSIS > [XENON TYPE]
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SYMPTOM DIAGNOSIS
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Symptom TableINFOID:0000000006213980
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 cause Inspection item
Headlamp does not
switch to the high beam. One sideFuse
 Harness between IPDM E/R
and the front combination lamp
 Front combination lamp
(High beam solenoid)
 IPDM E/R
 Harness between the front com- bination lamp and ground Headlamp (HI) circuit
Refer to
EXL-86, "
Component
Function Check".
Both sides Symptom diagnosis
“BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM”
Refer to
EXL-117, "
Diagnosis Procedure".
High beam indicator lamp is not turned ON.
[Headlamp (HI) is turned ON.] Combination meter 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 (High
beam solenoid) —
Both sides  Combination switch
 Harness between the combina-
tion switch and BCM
BCM Combination switch
Refer to
BCS-80, "
Symptom Table".
High beam request signal
BCM
 IPDM E/R IPDM E/R
Data monitor “HL HI REQ”
IPDM E/R —
Headlamp is not turned
ON. One sideFuse
 Xenon bulb
 Harness between IPDM E/R
and the front combination lamp
 Front combination lamp (xenon
headlamp)
 IPDM E/R
 Harness between the front com- bination lamp and ground Headlamp (L
O) circuit
Refer to EXL-88, "
Component
Function Check".
Both sides Symptom diagnosis
“BOTH SIDE HEADLAMPS (LO) ARE NOT TURNED ON”
Refer to EXL-118, "
Diagnosis Procedure".
Headlamp is not turned
OFF. When the ignition
switch is turned ON
The ignition switch is
turned OFF (After acti-
vating the battery sav-
er).
IPDM E/R —
Revision: 2010 May2011 QX56

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
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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

EXL-116
< SYMPTOM DIAGNOSIS >[XENON TYPE]
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
DescriptionINFOID:0000000006213981
XENON HEADLAMP
 Brightness and the color of light may change slightly
immediately after turning the headlamp ON until the
xenon bulb becomes stable. This is normal.
 Illumination time lag may occur between right and left. This is normal.
AUTO LIGHT SYSTEM
The headlamp may not be turned ON/OFF immediately afte r passing dark area or bright area (short tunnel,
sky bridge, shadowed area etc.) while using the auto light system. This causes for the control difference. This
is normal.
Revision: 2010 May2011 QX56

BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM
EXL-117
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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

HEADLAMP AIMING ADJUSTMENTEXL-121
< PERIODIC MAINTENANCE > [XENON TYPE]
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PERIODIC MAINTENANCE
HEADLAMP AIMING ADJUSTMENT
descriptionINFOID:0000000006213990
preparation before adjusting
NOTE:
 for details, refer to the regulations in your own country.
 perform aiming if the vehicle front body has been repaired and/or the headlamp assembly has been
replaced.
before performing aiming adjustment, check the following.  adjust the tire pressure to the specification.
 fill with fuel, engine coolant and each oil.
 maintain the unloaded vehicle condition. (remove luggage from the passenger compartment and the lug- gage room.)
NOTE:
do not remove the temporary tire, jack and on-vehicle tool.
 wipe out dirt on the headlamp.
CAUTION:
never use organic solvent (thinner, gasoline etc.)
 ride alone on the driver seat.
aiming adjustment screw
JMLIA1319ZZ
A. Headlamp RH HI /LO (UP/DOWN)
adjustment screw B. Headlamp LH HI/LO (UP/DOWN)
adjustment screw
: Vehicle center
Revision: 2010 May2011 QX56

EXL-122
< PERIODIC MAINTENANCE >[XENON TYPE]
HEADLAMP AIMING ADJUSTMENT
Aiming Adjustment Procedure
INFOID:0000000006369513
1. Place the screen. NOTE:
 Stop the vehicle facing the wall.
 Place the board on a plain road vertically.
2. Face the vehicle with the screen. Maintain 10 m (32.8 ft) between the headlamp center and the screen.
3. Start the engine. Turn the headlamp (LO) ON. NOTE:
Shut off the headlamp light with the board to prevent from illuminating the adjustment screen.
CAUTION:
Never cover the lens surface with a tape etc. The lens is made of resin.
4. Measure the distance (X) between the horizontal cent er line of headlamp (H) and the cutoff line (A) within
the light axis measurement range (R) from the vertical center line ahead of headlamp (V).
Low beam distribution on the screen
5. Adjust the cutoff line height (X) with the aiming adjus tment screw so as to enter in the adjustment range
(M–N) according to the horizontal center line of headlamp (H).
unit: mm (in)
Side view
Adjustment screw Screw driver rotation Facing direction
A Headlamp RH HI/LO (UP/DOWN) Clockwise UP
Counterclockwise DOWN
B Headlamp LH HI/LO (UP/DOWN) Clockwise UP
Counterclockwise DOWN
Light axis measurement range (R) : 350 ± 175 mm (13.78 ± 6.89 in)
JSLIA0005ZZ
Horizontal center line of headlamp (H) Highest cutoff line height (M) Lowest cutoff line height (N)
700 (27.56) or less 4 (0.16) 30 (1.18)
701(27.60) – 800 (31.50) 4 (0.16) 30 (1.18) 801 (31.54) or more 17 (0.67) 44 (1.73)
JSLIA0006ZZ
Distance between the headlamp center and the screen (L) : 10 m (32.8 ft)
Revision: 2010 May2011 QX56

FRONT FOG LAMP AIMING ADJUSTMENTEXL-123
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FRONT FOG LAMP AI MING ADJUSTMENT
DescriptionINFOID:0000000006213992
PREPARATION BEFORE ADJUSTING
NOTE:
 For details, refer to the regulations in your own country.
 Perform aiming if the vehicle front body has been repaired and/or the headlamp assembly has been
replaced.
Before performing aiming adjustm ent, check the following.  Adjust the tire pressure to the specification.
 Fill with fuel, engine coolant and each oil.
 Maintain the unloaded vehicle condition. (Remove luggage from the passenger compartment and the trunk
room.)
NOTE:
Do not remove the temporary tire, jack and on-vehicle tool.
 Wipe out dirt on the headlamp. CAUTION:
Never use organic solvent (thinner, gasoline etc.)
 Ride alone on the driver seat.
AIMING ADJUSTMENT SCREW
 Turn the aiming adjusting screw for adjustment.
 For the position and direction of the adjusting screw, refer to the figure.
NOTE:
A screwdriver or hexagonal wrench [6 mm (0.24 in)] can be used
for adjustment.
Aiming Adjustment ProcedureINFOID:0000000006213993
1. Place the screen. NOTE:
 Stop the vehicle facing the wall.
 Place the board on a plain road vertically.
2. Face the vehicle with the screen. Maintain 10 m (32.8 ft) between the front fog lamp center and the
screen.
3. Start the engine. Turn the front fog lamp ON. NOTE:
Shut off the headlamp light with the board to pr event from illuminating the adjustment screen.
CAUTION:
Never cover the lens surface with a tape etc. The lens is made of resin.
4. Adjust the cutoff line height (A) with the aiming adjus tment screw so that the distance (X) between the hor-
izontal center line of front fog lamp (H) and (A) becomes 200 mm (7.87 in).
A: UP
B: DOWN
JPLIA0915ZZ
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