2011 INFINITI QX56 instrument panel

BR-20
< REMOVAL AND INSTALLATION >
BRAKE PEDAL
REMOVAL AND INSTALLATION
BRAKE PEDAL
Exploded ViewINFOID:0000000006222472
Removal and InstallationINFOID:0000000006222473
REMOVAL
CAUTION:
Never removing brake pedal stroke sensor. (With pre-crash seat belt)
1. Remove the instrument lower panel LH. Refer to IP-14, "
Removal and Installation".
2. Disconnect the brake pedal stroke sensor har ness connector. (With pre-crash seat belt)
3. Disconnect the stop lamp switch harness connector and brake switch harness connector.
4. Rotate the stop lamp switch and the brake switch counterclockwise to remove.
5. Remove the snap pin, and then remove the clevis pin from the clevis of brake booster.
6. Remove the brake pedal assembly. CAUTION:
Hold the hydraulic booster assembly so as not to drop out or contact them other parts.
7. Perform inspection after removal. Refer to BR-21, "
Inspection and Adjustment".
INSTALLATION
Note the following, and install in the reverse order of removal.
 Apply the multi-purpose grease to the clevis pin and the matching faces.
1. Brake pedal stroke sensor (with pre-
crash seat belt) 2. Clevis pin 3. Brake pedal assembly
4. Brake pedal pad 5. Clip 6. Brake switch
7. Stop lamp switch 8. Snap pin : Apply multi-purpose grease.
Refer to GI-4, "
Components" for symbols not described on the above.
JPFIA0723GB
Revision: 2010 May2011 QX56

COMPONENT PARTSBRC-143
< SYSTEM DESCRIPTION > [BRAKE ASSIST (WITH PREVIEW FUNCTION)]
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Component DescriptionINFOID:0000000006248457
× : Applicable
13. Steering angle sensor
Refer to BRC-10, "
Component Parts
Location"
14. ADAS control unit
Refer to DAS-13, "
Component Parts
Location"
A. Back side of engine room (RH) B. Front bumper (center) C. Upper side of brake pedal
D. Under side of instrument lower driver
panel
Component Function
Description
Vehicle-to-vehicle distance control mode
Conventional (fixed speed) cruise control mode Intelligent Brake Assist (IBA)
Brake Assist (with preview function)
ADAS control unit ×××× ADAS control unit calculates a target distance between vehicles
and a target speed, based on signals received from each sensor
and switch to transmit an engine torque command value to ECM
and a brake fluid pressure cont rol signal to ABS actuator and
electric unit (control unit) via CAN communication
 ADAS control unit transmits buzzer output signal to combination
meter via CAN communication
ICC sensor ×××× ICC sensor detects light reflected from a vehicle ahead by irra-
diating laser forward and calculates a distance from the vehicle
ahead and a relative speed, based on the detected signal
 ICC sensor transmits the presence/absence of vehicle ahead and the distance from the vehicle to ADAS control unit via ITS
communication
ECM ×××× ECM transmits the accelerator pedal position signal, ICC brake
switch signal, stop lamp switch signal, ICC steering switch sig-
nal, etc. to ADAS control unit via CAN communication
 ECM controls the electric throttle control actuator based on the engine torque demand received from the ADAS control unit via
CAN communication
ABS actuator and electric unit
(control unit) ×××× ABS actuator and electric unit (c
ontrol unit) transmits the vehicle
speed signal (wheel speed), stop lamp signal and VDC/TCS/
ABS system operation condition to ADAS control unit via CAN
communication
 ABS actuator and electric unit (c ontrol unit) controls the brake,
based on a brake fluid pressure control signal received from the
ADAS control unit via CAN communication
BCM ×BCM transmits the front wiper request signal to ADAS control unit
via CAN communication
TCM ××TCM transmits the signal related to A/T control to ADAS control
unit via CAN communication
Revision: 2010 May2011 QX56

BRC-152
< SYSTEM DESCRIPTION >[INTELLIGENT BRAKE ASSIST]
SYSTEM
SYSTEM
INTELLIGENT BRAKE ASSIST
INTELLIGENT BRAKE ASSIST : System DescriptionINFOID:0000000006228299
FUNCTION DESCRIPTION
Intelligent Brake Assist (IBA) syst
em warns the driver by a vehicle ahead detection indicator and chime when
there is a risk of a collision with the vehicle ahead in the traveling lane and the driver must take avoidance
action immediately. The system helps reduce the rear -end collision speed by applying the brakes when it
judges a collision can not be avoided.
CAUTION:
The IBA system is a not collision avoidance system. It is the driver ′s responsibility to stay alert, drive
safely and be in control of the vehicle at all times. As there is a performance limit, it may not provide a
warning or brake in certain conditions.
NOTE:
 The IBA system shares component parts and diagnosis wi th the Intelligent Cruise Control (ICC) system.
New parts added to the IBA system is the IBA OFF indica tor lamp in the combination meter and the IBA OFF
switch on the instrument driver lower panel.
 The ICC sensor integrated unit shares the parts with the ICC, but the IBA system will operate even when the
ICC system is turned to OFF.
OPERATION DESCRIPTION
The IBA system uses an ICC sensor located below t he front bumper to measure the distance to a vehicle
ahead. When the system judges that the distance gets shorter, the vehicle ahead detection indicator on the
combination meter blinks and the warning chime sounds.
To turn the system OFF/ON, push and hold the IBA OFF switch after starting the engine for more than 1 sec-
ond.
NOTE:
 The system ON/OFF condition will be memorized even if the ignition switch turns OFF.
 The IBA system operates under the following conditions.
- The IBA system will function when the vehicle is driv en at speeds of approximately 15 km/h (10 MPH) and
above, and when the vehicle ′s speed is approximately 15 km/h (10 MPH) faster than that of the vehicle
ahead.
Switch and Indicators
Temporary unavailable indication
1. IBA OFF switch 2. Vehicle ahead detection indicator 3. IBA OFF indicator lamp
A. Under side of Instrument lower panel
(LH) B. On the combination meter
JSFIA0445ZZ
Revision: 2010 May2011 QX56

BRC-158
< REMOVAL AND INSTALLATION >[INTELLIGENT BRAKE ASSIST]
IBA OFF SWITCH
REMOVAL AND INSTALLATION
IBA OFF SWITCH
Removal and InstallationINFOID:0000000006228305
REMOVAL
1. Remove instrument lower panel. Refer to
IP-13, "Exploded View".
2. Disengage the pawl. Then remove IBA OFF switch.
INSTALLATION
Install in the reverse order of removal.
Revision: 2010 May2011 QX56

BRM-60
< SERVICE DATA AND SPECIFICATIONS (SDS)
LOCATION OF PLASTIC PARTS
Component Material Component Material
1Map lamp Lens PC 7 Center console PP
Housing PP 8 Glove box PP
2 Front pillar garnish PP 9 Instrument panelCore PP
3 Center pillar garnish PP Skin TPU
4Personal lamp Lens PC 10 Cluster lid C PC + ABS
Housing PP 11 Cluster lid D PC + ABS
5 Rear pillar finisher PP 12 Cluster lid A ABS
6 Back pillar garnish PP
JSKIA1905ZZ
Revision: 2010 May2011 QX56

DAS-216
< SYSTEM DESCRIPTION >[FCW]
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts LocationINFOID:0000000006223671
Component DescriptionINFOID:0000000006223672
1. Information display, IBA OFF indica-
tor lamp, buzzer
(On the combination meter) 2. ABS actuator and electric unit (con-
trol unit)
Refer to BRC-10, "
Component Parts
Location"
3. ICC sensor
Refer to CCS-9, "
Component Parts
Location"
4. Warning systems switch 5. Warning systems ON indicator 6. ADAS control unit
Refer to DAS-13, "
Component Parts
Location"
A. Instrument lower panel (LH)
JSOIA0366ZZ
Component Description
ADAS control unit  ADAS control unit turns ON warning systems ON indicator
 ADAS control unit transmits a buzzer output signal to combination meter via CAN commu-
nication
ICC sensor  ICC sensor detects light reflected from a vehicle ahead by irradiating laser forward and cal-
culates a distance from the vehicle ahead and a relative speed, based on the detected sig-
nal
 ICC sensor transmits the presence/absence of a vehicle ahead and a distance from the ve- hicle ahead to the ADAS control unit via CAN communication
ABS actuator and electric unit
(control unit) ABS actuator and electric unit (c
ontrol unit) transmits the vehicle speed signal (wheel speed),
to ADAS control unit via CAN communication
Warning systems switch Inputs the warning systems switch signal to ADAS control unit.
Revision: 2010 May2011 QX56

DAS
WARNING SYSTEMS SWITCHDAS-271
< REMOVAL AND INSTALLATION > [FCW]
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REMOVAL AND INSTALLATION
WARNING SYSTEMS SWITCH
Removal and InstallationINFOID:0000000006223696
REMOVAL
1. Remove the instrument lower panel (LH). Refer to IP-14, "Removal and Installation".
2. Remove warning systems switch from instrument driver lower panel.
NOTE:
Warning systems switch and automatic back door switch are integrated.
INSTALLATION
Install in the reverse order of removal.
Revision: 2010 May2011 QX56

DAS-274
< SYSTEM DESCRIPTION >[LDW & LDP]
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
LANE DEPARTURE WARNING (LDW) SYSTEM
LANE DEPARTURE WARNING (LDW) S
YSTEM : Component Parts Location
INFOID:0000000006223700
LANE DEPARTURE WARNING (LDW) SYSTEM : Component DescriptionINFOID:0000000006223701
1. Lane camera unit 2. Lane departure warning lamp (Yel-
low)
(On the combination meter)3. Warning systems switch
4. Warning systems ON indicator 5. ABS actuator and electric unit (con-
trol unit)
Refer to BRC-10, "
Component Parts
Location"
6. BCM
Refer to BCS-4, "
BODY CONTROL
SYSTEM : Component Parts Loca-
tion"
7. Warning buzzer 8. ADAS control unit
Refer to DAS-13, "
Component Parts
Location"
A. Front of the map lamp B. Instrument lower panel (LH) C. Behind of instrument lower panel
(LH)
JSOIA0367ZZ
Component Description
ADAS control unit  Judges the lane departure depending on the lane detection result and each signals
 Controls the warning buzzer and the warning systems ON indicator
 Transmits lane departure warning lamp signal to combination meter via CAN communica-
tion
Lane camera unit  Detects the lane marker in travel lane
 Transmits the detected lane condition signal to ADAS control unit via ITS communication
ABS actuator and electric unit (con-
trol unit) Transmits the vehicle speed signal (wheel speed) to ADAS control unit via CAN communica-
tion
Revision: 2010 May2011 QX56