bulb INFINITI QX56 2011 Factory Service Manual

BRC-24
< SYSTEM DESCRIPTION >[WITH VDC]
SYSTEM
Rear LH caliper Being returned to reservoir tank through ABS OUT valve, fluid pressure of rear LH caliper is decreased.
Component Parts and Function
*: Models with Advanced Driver Assistance System
CONDITION FOR TURN ON THE WARNING LAMP
ABS Warning Lamp
 Turns ON at the same time as VDC warning lamp
when either ABS function or EBD function is malfunction-
ing.
 Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes.
Brake Warning Lamp
 Turns ON at the same time as ABS warning lamp and VDC warning lamp when EBD function, motor/accu- mulator assembly or motor system is malfunctioning.
 Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes.
Component Function
Pump Operates the pump drive according
to signals from ABS actuator and electric unit (control unit) by
the motor.
Motor Operates the motor driv e according to signals from ABS actuator and electric unit (control unit).
Accumulator The accumulator accumulates brake fluid conveyed by the motor and pump.
ABS IN valve Increases, holds or decreases the fluid pressure of each caliper according to signals from ABS ac-
tuator and electric unit (control unit).
ABS OUT valve Increases, holds or decreases the fluid pressure of each caliper according to signals from ABS ac-
tuator and electric unit (control unit).
Cut valve 1
Cut valve 2 Shuts off the ordinary brake line fr
om master cylinder to signals from ABS actuator and electric unit
(control unit).
Suction valve 1 Suction Valve 1 switches the brake line to convey accumulator pressure to the front system, accord-
ing to a signal transmitted from the ABS ac
tuator and electric unit (control unit).
Suction valve 2 Suction valve 2 releases
accumulator pressure, acco rding to a signal transmitted from the ABS ac-
tuator and electric unit (control unit).
Control pressure sensor
*Detects the brake fluid pressure of rear brake caliper and transmits a signal to ABS actuator and
electric unit (control unit).
Accumulator pressure sensor The accumulator pressure sensor detects brake fluid pressure accumulated in the accumulator and
conveys the detected result to the ABS actuator and electric unit (control unit).
Master cylinder pressure sensor Detects the brake fluid pressure of master cylinder part and transmits a signal to ABS actuator and
electric unit (control unit).
Condition (status) ABS warning lamp
Ignition switch OFF OFF
For approx. 1 seconds after the ignition switch is turned ON ON
Approx. 1 seconds after ignition switch is turned ON (when the
system is in normal operation) OFF
ABS function is ma lfunctioning ON
EBD function is malfunctioning ON
Condition (status) Brake warning lamp
Ignition switch OFF OFF
For approx. 1 seconds after the ignition switch is turned ON ON
Approx. 1 seconds after ignition switch is turned ON (when the
system is in normal operation) OFF
After engine starts OFF
When parking brake operates (parking brake switch ON) ON
Revision: 2010 May2011 QX56

SYSTEMBRC-25
< SYSTEM DESCRIPTION > [WITH VDC]
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VDC Warning Lamp
 Turns ON when either VDC function,
TCS function, ABS function or EBD function, hill start assist function or
brake limited slip differential (BLSD) function is malfunctioning.
 Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes.
CONDITION FOR TURN ON THE INDICATOR LAMP
VDC OFF Indicator Lamp
 Turns ON when VDC function and TCS function are s witched to non-operational status (OFF) by VDC OFF
switch.
 Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes.
*: Models with 4WD system
Fail-safeINFOID:0000000006228184
VDC FUNCTION, TCS FUNCTION, hill start assi st FUNCTION AND BRAKE LIMITED SLIP DIFFER-
ENTIAL (BLSD) FUNCTION
VDC warning lamp in combination meter turn ON w hen a malfunction occurs in system [ABS actuator and
electric unit (control unit)]. The control is suspended for VDC function, TCS function, hill start assist function
and brake limited slip differential (BLSD) function. T he Vehicle status becomes the same as models without
VDC function, TCS function, hill star t assist function and brake limited slip differential (BLSD) function. How-
ever, ABS function and EBD f unction are operated normally.
When brake fluid is less than the specified level (brake fluid level
switch ON) ON
ABS function is malfunctioning OFF
EBD function is malfunctioning ON
Accumulator is low pressure ON
Motor system is malfunctioning ON
Ignition power supply system is malfunctioning ON Condition (status) Brake warning lamp
Condition (status) VDC warning lamp
Ignition switch OFF OFF
For approx. 1 seconds after the ignition switch is turned ON ON
Approx. 1 seconds after ignition switch is turned ON (when the
system is in normal operation) OFF
VDC function is malfunctioning ON
TCS function is malfunctioning ON
ABS function is malfunctioning ON
EBD function is malfunctioning ON
hill start assist function is malfunctioning ON
Brake limited slip differential (BLSD) function is malfunctioning ON
VDC function is operating Blinking
TCS function is operating Blinking
Condition (status) VDC OFF indicator lamp
Ignition switch OFF OFF
For approx. 1 seconds after the ignition switch is turned ON ON
Approx. 1 seconds after ignition switch is turned ON (when the
system is in normal operation) OFF
When VDC OFF switch is ON (VDC function and TCS function are
OFF) ON
4WD mode: 4L
*ON
Revision: 2010 May2011 QX56

DAS-278
< SYSTEM DESCRIPTION >[LDW & LDP]
SYSTEM
 When the vehicle approaches either the left or the ri
ght side of the traveling lane, a warning will sound and
the lane departure warning lamp (yellow) on the combination meter will blink to alert the driver.
 The warning does not occur during turn signal operation (Lane change side).
 The warning function will stop when the vehicle returns inside of the lane markers.
EXAMPLE
When the vehicle approaches the right lane marker, the driv er is alerted by the buzzer and the blinking of lane
departure warning lamp (yellow).
OPERATION DESCRIPTION
 When the system is turned ON by operating the warning systems switch, ADAS control unit turns ON the
warning systems ON indicator.
 Lane camera unit monitors lane markers of the traveling lane. It transmits the detected lane condition signal
to ADAS control unit via ITS communication.
 When judging from a lane marker detection signal that the vehicle is approaching the lane marker, the ADAS
control unit controls the following item to alert the driver.
- Activates warning buzzer
- ADAS control unit transmits a lane departure warning lamp signal to combination meter via CAN communi- cation and turns ON/OFF the lane departure warning lamp (yellow).
OPERATING CONDITION
 Warning systems ON indicator: ON
 Vehicle speed: approximately 70 km/h (45 MPH) or more
 Turn indicator signal: After 2 seconds or more from turned OFF
NOTE:
 After the operating conditions of warning are satisfi ed, the warning continues until the vehicle speed reaches
approximately 60 km/h (40 MPH)
 LDP ON indicator lamp is OFF
 The LDW system may not function proper ly, depending on the situation. Refer to DAS-288, "
Precautions for
Lane Departure Warning/Lane Departure Prevention"
Bulb Check Action and Fail-safe Indication
JPOIA0014GB
Vehicle condition/ Driver's operation Warning sys-
tems ON indi- cator Indication on the combination meter
Ignition switch
OFF ⇒ ON
(Bulb check) Approx. 5 sec.
ON
*
JPOIA0017GB
Revision: 2010 May2011 QX56

DAS
SYSTEM
DAS-283
< SYSTEM DESCRIPTION >[LDW & LDP]
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 After the operating conditions are satisfied, the c ontrol continues until the vehicle speed reaches approxi-
mately 60 km/h (40 MPH).
 The LDP system may not function properly, depending on the situation. Refer to DAS-288, "
Precautions for
Lane Departure Warning/Lane Departure Prevention".
Bulb Check Action and Fail-safe Indication
LANE DEPARTURE PREVENTION (LDP) SYSTEM : Fail-safe (ADAS Control Unit)
INFOID:0000000006223708
If a malfunction occurs in each system, ADAS control unit cancels eac h control, sounds a beep, and turns ON
the warning lamp or indicator lamp.
Vehicle condition/ Driver's operation Indication on the combination meter Buzzer
Ignition switch
OFF ⇒ ON
(Bulb check) —
When DTC is detected
(Except “C1B01” and “C1B03”) Beep
Camera aiming is not completed
(“C1B01”is detected)
NOTE:
This is detected while driving the vehicle and the indication remains ON
until the ignition switch is turned OFF
Temporary disabled status at high temperature
(“C1B03”is detected)
Beep
When the dynamic driver assistance switch is pressed
[When the settings of LDP system, DCA system on the navigation screen
are both “OFF”] —
JPOIA0017GB
JPOIA0019GB
JPOIA0020GB
JPOIA0036GB
System Buzzer Warning lamp/Indicator lamp Description
Vehicle-to-vehicle distance control mode High-pitched
tone
ICC system warning lamp Cancel
Conventional (fixed speed) cruise control mode High-pitched
toneICC system warning lamp Cancel
Intelligent Brake Assist (IBA) High-pitched
toneIBA OFF indicator lamp Cancel
Forward Collision Warning (FCW) High-pitched
tone
IBA OFF indicator lamp Cancel
Distance Control Assist (DCA) High-pitched
toneICC system warning lamp Cancel
Lane Departure Warning (LDW) — Lane departure warning lamp Cancel
Revision: 2010 May2011 QX56

DAS-412
< SYSTEM DESCRIPTION >[BSW]
SYSTEM
NOTE:
 After the operating conditions of warning are satisfi
ed, the warning continues until the vehicle speed reaches
approximately 29 km/h (18 MPH)
 The BSW system may not function properly, depending on the situation. Refer to DAS-417, "
Precautions for
Blind Spot Warning".
BULB CHECK ACTION AND FAIL-SAFE INDICATION
*: If BSW initial state is ON, warning systems ON indicator continues turned ON.
NOTE:
 The condition is seen regardless BSW system status (ON/OFF).
 If either of the side radars is in factor y-default mode, the BSW warning lamp blinks.
 New side radars are in factory-default mode.
Vehicle condition/Driver ′s operation BSW indicator Warning systems
ON indicator Indication on the combination meter
Ignition switch:
OFF ⇒ ON Approx. 2 sec. ON
Approx. 5 sec. ON
*
When DTC is detected OFF ON
Side radar is factory-default mode con-
dition
NOTEOFF — *1
When radar blockage is detected OFF ON
*2
JSOIA0374GB
JSOIA0254GB
JSOIA0255GB
JSOIA0255GB
Revision: 2010 May2011 QX56

DAS-444
< ECU DIAGNOSIS INFORMATION >[BSW]
SIDE RADAR LH
SIDE RADAR LH
Reference ValueINFOID:0000000006223865
VALUES ON THE DIAGNOSIS TOOL
CONSULT-III MONITOR ITEM
TERMINAL LAYOUT
PHYSICAL VALUES
Fail-safeINFOID:0000000006223866
FAIL-SAFE CONTROL BY DTC
If a malfunction occurs in the side radar, ADAS control
unit cancels the control. Then the BSW warning lamp in
the combination meter illuminates.
Monitor Item Condition Value/Status
BEAM DISTANCE NOTE:
The item is displayed, but it is not used.
—
BEAM POSITION NOTE:
The item is displayed, but it is not used. —
SIDE RADAR MALF Side radar is normal.
Off
Side radar is malfunctioning. On
BLOCKAGE COND Side radar is not blocked. Off
Side radar is blocked. On
ACTIVATE OPE When the side radar is factory-default mode. (“Deactivate” condition) Off
When the side radar is normal usage mode. (“Activate” condition) On
VEHICLE DETECT Side radar does not detect a vehicle. Off
Side radar detects a vehicle. On
JSOIA0244ZZ
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
2
(B) Ground Ground — — 0 V
3
(Y) — ITS communication-L — — —
4
(L) — ITS communication-H — — —
5
(W/G) Ground Ignition power supply Input Ignition switch ON —
6
(BR) Ground BSW indicator Output Approx. 2 sec. after ignition switch OFF
⇒ ON
(bulb check) 6 V
Revision: 2010 May2011 QX56

DAS-446
< ECU DIAGNOSIS INFORMATION >[BSW]
SIDE RADAR RH
SIDE RADAR RH
Reference ValueINFOID:0000000006223869
VALUES ON THE DIAGNOSIS TOOL
CONSULT-III MONITOR ITEM
TERMINAL LAYOUT
PHYSICAL VALUES
Fail-safeINFOID:0000000006223870
FAIL-SAFE CONTROL BY DTC
Monitor Item Condition Value/Status
BEAM DISTANCE NOTE:
The item is displayed, but it is not used.
—
BEAM POSITION NOTE:
The item is displayed, but it is not used. —
SIDE RADAR MALF Side radar is normal.
Off
Side radar is malfunctioning. On
BLOCKAGE COND Side radar is not blocked. Off
Side radar is blocked. On
ACTIVATE OPE When the side radar is factory-default mode. (“Deactivate” condition) Off
When the side radar is normal usage mode. (“Activate” condition) On
VEHICLE DETECT Side radar does not detect a vehicle. Off
Side radar detects a vehicle. On
JSOIA0244ZZ
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
1
(B/Y) Ground Right/Left switching signal Input — 0 V
2
(B) Ground Ground — — 0 V
3
(Y) — ITS communication-L — — —
4
(L) — ITS communication-H — — —
5
(W/G) Ground Ignition power supply Input Ignition switch ON —
6
(L/R) Ground BSW indicator Output Approx. 2 sec. after ignition switch OFF
⇒ ON
(bulb check) 6 V
Revision: 2010 May2011 QX56

PRECAUTIONSDLK-9
< PRECAUTION >
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5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
6. Perform self-diagnosis check of a ll control units using CONSULT-III.
Precautions For Xenon Headlamp ServiceINFOID:0000000006225830
WARNING:
Comply with the follow ing warnings to prevent any serious accident.
 Disconnect the battery cable (neg ative terminal) or the power supply fuse before installing, remov-
ing, or touching the xenon headlamp (bulb included). The xenon headlamp contains high-voltage
generated parts.
 Never work with wet hands.
 Check the xenon headlamp ON-OFF status after assem bling it to the vehicle. Never turn the xenon
headlamp ON in other conditions. Connect th e power supply to the vehicle-side connector.
(Turning it ON outside the lamp case m ay cause fire or visual impairments.)
 Never touch the bulb glass immediately afte r turning it OFF. It is extremely hot.
CAUTION:
Comply with the follow ing cautions to prevent an y error and malfunction.
 Install the xenon bulb securely. (I nsufficient bulb socket installation may melt the bulb, the connec-
tor, the housing, etc. by high-vol tage leakage or corona discharge.)
 Never perform HID circuit inspection with a tester.
 Never touch the xenon bulb glass with ha nds. Never put oil and grease on it.
 Dispose of the used xenon bulb after p acking it in thick vinyl without breaking it.
 Never wipe out dirt and cont amination with organic solven t (thinner, gasoline, etc.).
WorkINFOID:0000000006225831
 After removing and installing the opening/closing parts, be sure to carry out fitting adjustments to check their
operational.
 Check the lubrication level, damage, and wear of each part. If necessary, grease or replace it.
Revision: 2010 May2011 QX56

PRECAUTIONSEC-9
< PRECAUTION > [VK56VD]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006219727
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision that would result in air ba g inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
 When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
 When using air or electric power tools or hammers , always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution for Procedur e without Cowl Top CoverINFOID:0000000006217650
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precautions For Xenon Headlamp ServiceINFOID:0000000006217651
WARNING:
Comply with the follow ing warnings to prevent any serious accident.
 Disconnect the battery cable (neg ative terminal) or the power supply fuse before installing, remov-
ing, or touching the xenon headlamp (bulb included). The xenon headlamp contains high-voltage
generated parts.
 Never work with wet hands.
 Check the xenon headlamp ON-OFF status after assem bling it to the vehicle. Never turn the xenon
headlamp ON in other conditions. Connect th e power supply to the vehicle-side connector.
(Turning it ON outside the lamp case m ay cause fire or visual impairments.)
 Never touch the bulb glass immediately afte r turning it OFF. It is extremely hot.
PIIB3706J
Revision: 2010 May2011 QX56

EC-10
< PRECAUTION >[VK56VD]
PRECAUTIONS
CAUTION:
Comply with the following cautions to
prevent any error and malfunction.
 Install the xenon bulb securely. (Ins ufficient bulb socket installation may melt the bulb, the connec-
tor, the housing, etc. by high-v oltage leakage or corona discharge.)
 Never perform HID circuit in spection with a tester.
 Never touch the xenon bulb glass with ha nds. Never put oil and grease on it.
 Dispose of the used xenon bulb after packing it in thick vinyl without breaking it.
 Never wipe out dirt and cont amination with organic solven t (thinner, gasoline, etc.).
On Board Diagnostic (OBD) System of Engine and A/TINFOID:0000000006217652
The ECM has an on board diagnostic system. It will illuminate the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
 Always turn the ignition switch OFF and disconnect the negative battery cable before any repair or
inspection work. The open/short circuit of related sw itches, sensors, solenoid valves, etc. will cause
the MIL to illuminate.
 Always connect and lock the conn ectors securely after work. A loose (unlocked) connector will
cause the MIL to illuminate due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
 Certain systems and components, especially those related to OBD, may use a new style slide-lock-
ing type harness connector. For descripti on and how to disconnect, refer to EC-51, "
Diagnosis
Description".
 Always route and secure the harnesses properly afte r work. The interference of the harness with a
bracket, etc. may cause the MIL to illu minate due to the short circuit.
 Always connect rubber tubes properly after work. A misconnected or disconnected rubber tube may
cause the MIL to illuminate due to the malfunction of the EVAP system or fuel injection system, etc.
 Always erase the unnecessary malfunction information (repairs completed) from the ECM and TCM
(Transmission control module) before re turning the vehicle to the customer.
General PrecautionsINFOID:0000000006217653
Always use a 12 volt battery as power source.
 Never attempt to disconnect battery cables while engine is
running.
 Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative bat-
tery cable. Failure to do so may damage the ECM because
battery voltage is applied to ECM even if ignition switch is
turned OFF.
 Before removing parts, turn ig nition switch OFF and then dis-
connect battery ground cable.
 Never disassemble ECM.
 If a battery cable is disconnected, the memory will return to
the ECM value.
The ECM will now start to self-control at its initial value. Thus,
engine operation can vary slight ly in this case. However, this
is not an indication of a ma lfunction. Never replace parts
because of a slight variation.
 If the battery is disconnected, the following emission-related
diagnostic information will be lost within 24 hours.
- Diagnostic trouble codes
- 1st trip diagnostic trouble codes
- Freeze frame data
- 1st trip freeze frame data
- System readiness test (SRT) codes
- Test values
SEF289H
JMBIA0057ZZ
Revision: 2010 May2011 QX56