2011 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2011 Factory Service Manual
DAS-12
< PRECAUTION >[ADAS CONTROL UNIT]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precautions For Harness RepairINFOID:0000000006223469
ITS communication uses a twisted pair
line. Be careful when repairin

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INFINITI QX56 2011 Factory Service Manual
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COMPONENT PARTSDAS-13
< SYSTEM DESCRIPTION > [ADAS CONTROL UNIT]
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SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts LocationINFOID:0000000006223470
Component Descrip

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INFINITI QX56 2011 Factory Service Manual
DAS-14
< SYSTEM DESCRIPTION >[ADAS CONTROL UNIT]
SYSTEM
SYSTEM
System DescriptionINFOID:0000000006223472
SYSTEM DIAGRAM
ADAS CONTROL UNIT INPU
T/OUTPUT SIGNAL ITEM
Input Signal Item
JSOIA0373GB
Revis

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INFINITI QX56 2011 Factory Service Manual
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SYSTEMDAS-15
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Transmit unit Signal name Description
ECM CAN com-
munica-
tionClosed throttle position signal Receives idle

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Transmit unit Signal name Description
ECM CAN com-
munica-
tionClosed throttle position signal Receives idle position state (ON/OFF)
Accelerator pedal position signal Receives accelerator pedal position (angle)
ICC prohibition signal
Receives an operable/inoperable state of the ICC sys-
tem
ICC steering switch
signal Main switch signal
Receives the operational state of the ICC steering
switch
SET/COAST switch
signal
CANCEL switch sig-
nal
RESUME/ACCEL-
ERATE switch signal
DISTANCE switch
signal
Dynamic driver as-
sistance switch sig-
nal
Engine speed signal Receives engine speed
Stop lamp switch signal Receives an operational state of the brake pedal
ICC brake switch signal Receives an operational state of the brake pedal
Snow mode signal Receives an operational state of the snow mode
TCM CAN com-
munica-
tionInput speed signal Receives the number of revolutions of input shaft
Current gear position signal Receives a current gear position
Shift position signal Receives a selector lever position
Output shaft revolution signal Receives the number of revolutions of output shaft
ABS actuator
and electric unit
(control unit) CAN com-
munica-
tionABS malfunction signal Receives
a malfunction state of ABS
ABS operation signal Receives an operational state of ABS
ABS warning lamp signal Receives an ON/OFF state of ABS warning lamp
TCS malfunction signal Receives a malfunction state of TCS
TCS operation signal Receives an operational state of TCS
VDC OFF switch signal Receives an ON/OFF state of VDC
VDC malfunction signal Receives a malfunction state of VDC
VDC operation signal Receives an operational state of VDC
Vehicle speed signal (ABS) Receives wheel speeds of four wheels
Stop lamp switch signal Receives an operational state of the brake pedal
Yaw rate signal Receives yaw rate acting on the vehicle
Side G sensor signal Receives lateral G acting on the vehicle
Combination
meter CAN com-
munica-
tion
Parking brake switch signal Receives an operational state of the parking brake
BCM CAN com-
munica-
tionFront wiper request signal Receives an operational state of front wiper(s)
Turn indicator signal
Receives an operational state of the turn signal lamp
and the hazard lamp
Dimmer signal Receives ON/OFF state of dimmer signal
Steering angle
sensor CAN com-
munica-
tionSteering angle sensor malfunction signal Receives a malfunction state of steering angle sensor
Steering angle sensor signal
Receives the number of revolutions, turning direction of
the steering wheel
Steering angle speed signal Receives the turning angle speed of the steering wheel
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
DAS-16
< SYSTEM DESCRIPTION >[ADAS CONTROL UNIT]
SYSTEM
Output Signal Item
AV control unitCAN com-
munica-
tionSystem selection signal
Receives a selection state of each item in “Driver Assis-
tanc

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INFINITI QX56 2011 Factory Service Manual
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Combination
meter CAN commu-
nicationMeter display
signal
Own vehicle indicator
signal
Transmits a signal

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Combination
meter CAN commu-
nicationMeter display
signal
Own vehicle indicator
signal
Transmits a signal to display a state of the system on
the information display
Vehicle ahead detec-
tion indicator signal
Set vehicle speed indi-
cator signal
Set distance indicator
signal
SET switch indicator
signal
MAIN switch indicator
signal
DCA system switch in-
dicator signal
BSW warning lamp signal Transmits a BSW warning lamp signal to turn ON the
BSW warning lamp
LDP ON indicator lamp signal Transmits an LDP ON indicator lamp signal to turn ON
the LDP ON indicator lamp
Lane departure warning lamp signal Transmits an lane departure warning lamp signal to
turn ON the lane departure warning lamp
ICC warning lamp signal Transmits an ICC warning lamp signal to turn ON the
ICC system warning lamp
IBA OFF indicator lamp signal Transmits a signal to turn ON the IBA OFF indicator
lamp
Transmits an ON/OFF state of the intelligent brake
assist
Buzzer output signal Transmits a buzzer output signal to turn ON the buzz-
er of the following systems:
Intelligent Crui
se Control (ICC)
Distance Control Assist (DCA)
Intelligent Brake Assist (IBA)
Forward Collision Warning (FCW)
ICC sensor ITS commu-
nicationVehicle speed signal
Transmits a vehicle speed calculated by the ADAS
control unit
Steering angle sensor signal Transmits a steering angle sensor signal received
from the steering angle sensor
Lane camera
unit ITS commu-
nicationVehicle speed signal
Transmits a vehicle speed calculated by the ADAS
control unit
Turn indicator signal Transmits a turn indicator signal received from BCM
Accelerator
pedal actuator ITS commu-
nicationAccelerator pedal position signal
Transmits an accelerator pedal angle calculated by
the ADAS control unit
Accelerator pedal feedback force control
signal Transmits a target reaction force value calculated by
the ADAS control unit
Side radar LH,
RH ITS commu-
nicationVehicle speed signal
Transmits a vehicle speed calculated by the ADAS
control unit
BSW indicator signal Transmits a BSW indicator signal to turn ON the BSW
indicator
BSW indicator dimmer signal Transmits a BSW indicator dimmer signal to dimmer
BSW indicator
ICC brake hold
relay ICC brake hold relay drive signal
Activates the brake hold relay and turns ON the stop
lamp
Reception unit Signal name Description
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
DAS-18
< SYSTEM DESCRIPTION >[ADAS CONTROL UNIT]
SYSTEM
DESCRIPTION
ADAS* control unit controls the following systems,
based on ITS communication signals from the ICC sen-
sor, the accelerator peda

DAS-18
< SYSTEM DESCRIPTION >[ADAS CONTROL UNIT]
SYSTEM
DESCRIPTION
ADAS* control unit controls the following systems,
based on ITS communication signals from the ICC sen-
sor, the accelerator pedal actuator, the lane camera unit and side radar LH/RH and a CAN communication
signal from each control unit.
NOTE:
*: Advanced Driver Assistance Systems
- Intelligent Cruise Control (ICC)
- Distance Control Assist (DCA)
- Intelligent Brake Assist (IBA)
- Brake Assist (with preview function)
- Forward Collision Warning (FCW)
- Lane Departure Warning (LDW)/Lane Departure Prevention (LDP)
- Blind Spot Warning (BSW)
Fail-safeINFOID:0000000006223473
If a malfunction occurs in each system, ADAS contro l unit cancels each control, sounds a beep, and turns ON
the warning lamp or indicator lamp.
Warning buzz-
er Warning buzzer signal Activates the warning buzzer of the following systems:
Lane Departure Warning (LDW)
Lane Departure Prevention (LDP)
Blind Spot Warning (BSW)
Warning sys-
tems ON indi-
cator Warning systems ON indicator signal Turns ON the warning systems ON indicator
Reception unit Signal name Description
System Reference
Intelligent Cruise Control (ICC) CCS-12, "
System Description"
Distance Control Assist (DCA)DAS-68, "System Description"
Intelligent Brake Assist (IBA)BRC-152, "INTELLIGENT BRAKE ASSIST : System De-
scription"
Brake Assist (with preview function)
BRC-145, "BRAKE ASSIST (WITH PREVIEW FUNCTION)
: System Description"
Forward Collision Warning (FCW)
DAS-218, "System Description"
Lane Departure Warning (LDW)/Lane Departure Prevention (LDP)LDW:
DAS-277, "
LANE DEPARTURE WARNING (LDW)
SYSTEM : System Description"
LDP: DAS-280, "LANE DEPARTURE PREVENTION
(LDP) SYSTEM : System Description"
Blind Spot Warning (BSW) DAS-410, "System Description"
System Buzzer Warning lamp/Indicator lamp Description
Vehicle-to-vehicle distance control mode High-pitched
toneICC system warn
ing lamp Cancel
Conventional (fixed speed) cruise control mode High-pitched
tone
ICC system warn
ing lamp Cancel
Intelligent Brake Assist (IBA) High-pitched
tone
IBA OFF indicator lamp Cancel
Forward Collision Warning (FCW) High-pitched
toneIBA OFF indicator lamp Cancel
Distance Control Assist (DCA) High-pitched
toneICC system warn
ing lamp Cancel
Lane Departure Warning (LDW) — Lane departure warning lamp Cancel
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
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Lane Departure Prevention (LDP) Low-pitched
toneLane departure warning lamp Cancel
Blind Spot Warning (BSW)

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