2011 INFINITI QX56 turn signal

FRONT COMBINATION LAMPEXL-127
< REMOVAL AND INSTALLATION > [XENON TYPE]
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Disassembly and AssemblyINFOID:0000000006369466
DISASSEMBLY
1. Rotate resin cap counterclockwise and unlock it.
2. Rotate xenon bulb socket counterclockwise and unlock it.
3. Remove retaining spring lock. Remove xenon bulb.
4. Remove bumper bracket.
5. Rotate parking lamp bulb socket counterclockwise and unlock it.
6. Remove bulb from parking lamp bulb socket.
7. Rotate front turn signal lamp bulb socket counterclockwise and unlock it.
8. Remove bulb from front turn signal lamp bulb socket.
9. Rotate side marker lamp bulb socket counterclockwise and unlock it.
10. Remove bulb from bulb socket.
ASSEMBLY
Assemble in the reverse order of disassembly.
CAUTION:
 HID control unit and xenon bu lb socket cannot be disassembled.
 After installing the bulb, install the resin cap and the bulb socket securely for watertightness.
Revision: 2010 May2011 QX56

EXL-130
< REMOVAL AND INSTALLATION >[XENON TYPE]
SIDE TURN SIGNAL LAMP
SIDE TURN SIGNAL LAMP
Exploded ViewINFOID:0000000006369470
Removal and InstallationINFOID:0000000006369471
CAUTION:
Disconnect battery negative terminal or remove the fuse.
REMOVAL
1. Remove the door mirror. Refer to
MIR-32, "DOOR MIRROR ASSEMBLY : Removal and Installation".
2. Remove the door mirror glass. Refer to MIR-35, "
GLASS MIRROR : Removal and Installation".
3. Remove the side camera finisher. Refer to MIR-33, "
DOOR MIRROR ASSEMBLY : Disassembly and
Assembly".
4. Remove side turn signal lamp fixing screws (E), and then remove side turn signal lamp (with side turn signal lamp models
only).
NOTE:
Pull slightly side camera finisher (1) covering side turn signal
lamp bottom screw.
INSTALLATION
Install in the reverse order of removal.
1. Door mirror assembly 2. Door mi rror cover 3. Side camera finisher
4. Side turn signal lamp housing 5. Side turn signal lamp bulb
JMLIA1110ZZ
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Revision: 2010 May2011 QX56

EXL-132
< REMOVAL AND INSTALLATION >[XENON TYPE]
LIGHTING & TURN SIGNAL SWITCH
LIGHTING & TURN
SIGNAL SWITCH
Exploded ViewINFOID:0000000006369474
The lighting & turn signal switch is integrated in the combination switch. BCS-82, "Removal and Installation".
Revision: 2010 May2011 QX56

EXL-138
< REMOVAL AND INSTALLATION >[XENON TYPE]
REAR COMBINATION LAMP
REAR COMBINATION LAMP
Exploded ViewINFOID:0000000006369482
REMOVAL
DISASSEMBLY
Removal and InstallationINFOID:0000000006369483
CAUTION:
Disconnect the battery negative terminal or remove the fuse.
REMOVAL
1. Remove rear combination lamp finisher.
2. Remove rear combination lamp mounting bolts.
3. Pull rear combination lamp toward vehicle outside.
4. Disconnect rear combination lamp connector.
5. Remove rear combination lamp.
1. Rear combination lamp 2. Rear combination lamp finisher
:Pawl
JMLIA1118ZZ
1. Rear combination lamp 2. Rear turn signal bulb 3. Seal packing
4. Rear turn signal bulb socket 5. Rear combination lamp harness
JMLIA1119ZZ
Revision: 2010 May2011 QX56

SERVICE DATA AND SPECIFICATIONS (SDS)
EXL-145
< SERVICE DATA AND SPECIFICATIONS (SDS) [XENON TYPE]
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Bulb SpecificationsINFOID:0000000006369512
Item Type Wattage (W)
Front combination lamp Headlamp (HI/LO) D2S (Xenon) 35
Front turn signal lamp WY21W (Amber) 21
Parking lamp W5W 5
Front fog lamp H8 35
Side turn signal lamp Replace as an assembly because it cannot be disassembled.
Rear combination lamp Stop lamp/Tail lamp LED —
Rear turn signal lamp WY21W 21
Back-up lamp W16W 16
Tail lamp W5W 5
License plate lamp W5W 5
High-mounted stop lamp LED —
Revision: 2010 May2011 QX56

SERVICE INFORMATION FOR ELECTRICAL INCIDENTGI-47
< BASIC INSPECTION >
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INPUT-OUTPUT VOLTAGE CHART
 The voltage value is based on the body ground.
 *: If high resistance exists in the switch side circuit (caused by a single strand), terminal 1 does not detect battery voltag e. Control unit
does not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not supply power to ligh t up the
lamp.
CASE 2
INPUT-OUTPUT VOLTAGE CHART
 The voltage value is based on the body ground.
 *: If high resistance exists in the switch side circuit (caused by a single strand), terminal 2 does not detect approx. 0 V. C ontrol unit
does not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not control ground to li ght up the
lamp. Terminal No. Description
Condition Value (Approx.)In case of high resistance such as single
strand (V) *
+ −Signal name Input/
Output
1 Body
ground Switch Input Switch ON Battery voltage
Lower than battery voltage Approx. 8 (Ex-
ample)
Switch OFF 0 V Approx. 0
2 Body
ground Lamp Output Switch ON Battery voltage App
rox. 0 (Inoperative lamp)
Switch OFF 0 V Approx. 0
Terminal No. Description Condition Value (Approx.)In case of high resistance such as single
strand (V) *
+ −Signal name Input/
Output
1 Body
ground Lamp Output Switch ON 0 V Battery voltage (Inoperative lamp)
Switch OFF Battery voltage Battery voltage
2 Body
ground Switch Input Switch ON 0 V Higher than 0 Approx. 4 (Example)
Switch OFF 5 V Approx. 5
MGI035A
Revision: 2010 May2011 QX56

SYSTEMHA-15
< SYSTEM DESCRIPTION >
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The refrigerant from the compressor, frows the condens er with liquid tank, the evaporator, and returns to the
compressor. The refrigerant evaporation in the evaporator is controlled by an expansion valve.
Freeze Protection
Automatic air conditioner When intake sensor detects that evaporator surface temperature is 2.5°C (37 °F) or less, A/C auto amp.
requests BCM to turn the compressor OFF.
 BCM requests ECM to turn the compressor to OFF by the signal from A/C auto amp., and ECM makes A/C
relay to OFF, and stops the compressor.
REFRIGERANT SYSTEM PROTECTION
Refrigerant Pressure Sensor
 The refrigerant system is protected against excessively high- or low-pressures by the refrigerant pressure
sensor, installed at the condenser exit. The refrigerant pressure sensor detects the pressure inside the
refrigerant line and sends the voltage signal to the ECM if the system pressure rises above, or falls below
the specifications.
 ECM turns the A/C relay to OFF and stops the compress or when the high-pressure side detected by refriger-
ant pressure sensor is following conditions;
- Approximately 3,120 kPa (31.8 kg/cm
2, 452 psi) or more (Engine speed is less than 1,500 rpm.)
- Approximately 2,740 kPa (27.9 kg/cm
2, 397 psi) or more (Engine speed is 1,500 rpm or more.)
- Approximately 140 kPa (1.4 kg/cm
2, 20 psi) or less
Pressure Relief Valve
The refrigerant system is also protected by a pressure relief valve, located in the rear head of the compressor.
The release port on the pressure relief valve automatical ly opens and releases refrigerant into the atmosphere
when the pressure of refrigerant in the system incr eases to an unusual level [more than 3,800 kPa (38.8 kg/
cm
2, 551 psi)].
Revision: 2010 May2011 QX56

HAC-8
< SYSTEM DESCRIPTION >[AUTOMATIC AIR CONDITIONING]
COMPONENT PARTS
REAR AUTOMATIC AIR CONDITIONING SYSTEM
Heater & cooling unit
assemblyAspirator Refer to
HAC-12
.
Front air mix door motor (Driver
side) The LCU (Local Control Unit) is installe
d to front air mix door motor (driver
side) so as to perform the multiplex communication control (LIN).
Refer to HAC-18, "
FRONT AUTOMATIC AIR CONDITIONING SYSTEM :
Door Control".
Front air mix door motor (Pas-
senger side) The LCU (Local Control Unit) is installed to front air mix door motor (pas-
senger side) so as to perform the multiplex communication control (LIN).
Refer to
HAC-18, "
FRONT AUTOMATIC AIR CONDITIONING SYSTEM :
Door Control".
Front mode door motor The LCU (Local Control Unit) is installed to front mode door motor so as to
perform the multiplex communication control (LIN).
Refer to
HAC-18, "
FRONT AUTOMATIC AIR CONDITIONING SYSTEM :
Door Control".
Intake sensor Intake sensor measures temperature of front evaporator fin temperature.
The sensor uses a thermistor which is sensitive to the change in tempera-
ture. The electrical resistance of the thermistor decreases as temperature
increases.
Upper ventilator door motor The LCU (Local Control Unit) is installed to upper ventilator door motor so
as to perform the multiplex communication control (LIN).
Refer to
HAC-18, "
FRONT AUTOMATIC AIR CONDITIONING SYSTEM :
Door Control".
IPDM E/R A/C relay is integrated in
IPDM E/R. IPDM E/R op erates A/C relay when A/
C compressor request signal is received from ECM via CAN communica-
tion line.
Magnet clutch The magnet clutch is the device that drives the compressor with the signal
from IPDM E/R. Compressor is driven by the magnet clutch which is mag-
netized by electric power supply. IPDM controls magnet clutch by turning
the built in A/C relay to ON
⇔ OFF according to ECM request.
Preset switch Preset switch is integrated with front A/C control and AV operation switch.
Front A/C control operation signal is transmitted from preset switch to AV
control unit via communication line.
Refrigerant pressure sensor Refer to HAC-13
.
Sunload sensor Sunload sensor measures sunload amount. This sensor is a dual system
so that sunload for driver side and passenger side are measured separate-
ly. This sensor converts sunload amount to voltage signal by photodiode
and transmits to A/C auto amp..
Component Description
Revision: 2010 May2011 QX56