2011 INFINITI QX56 display

COMPONENT PARTSBRC-149
< SYSTEM DESCRIPTION > [INTELLIGENT BRAKE ASSIST]
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SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts LocationINFOID:0000000006248458
1. ICC steering switch 2. Information display, ICC system warning lamp, IBA OFF indicator
lamp, buzzer
(On the combination meter)3. BCM
Refer to BCS-4, "
BODY CONTROL
SYSTEM : Compon ent Parts Loca-
tion"
4. Transfer control unit
Refer to DLN-10, "
Component Parts
Location"
5. ICC brake hold relay 6. ECM
Refer to EC-16, "
Component Parts
Location"
7. ICC sensor 8. TCM
Refer to TM-10, "
A/T CONTROL
SYSTEM : Compon ent Parts Loca-
tion"
9. ABS actuator and electric unit (con-
trol unit)
Refer to BRC-10, "
Component Parts
Location"
10. Stop lamp switch 11. ICC brake switch 12. IBA OFF switch
JSOIA0362ZZ
Revision: 2010 May2011 QX56

COMPONENT PARTSBRC-151
< SYSTEM DESCRIPTION > [INTELLIGENT BRAKE ASSIST]
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NOTE:
Only IBA system uses
Combination meter ××××Performs the following operations using the signals received from
the ADAS control unit via the CAN communication
 Displays the ICC system operation status using the meter dis-
play signal
 Illuminates the ICC system warning lamp using the ICC warning
lamp signal
 Illuminates the IBA OFF indicator lamp using the IBA OFF indi- cator lamp signal
 Operates the buzzer (ICC warning chime) using the buzzer out- put signal
ICC steering switch ×× ICC steering switch allows the ON/OFF of the Intelligent Cruise
Control and the settings of a vehicle speed and distance be-
tween vehicles
 ICC steering switch signal is transmitted to ECM. ECM transmits the signal to the ADAS control unit via CAN communication
ICC brake switch ×××× ICC brake switch is turned OFF and stop lamp switch is turned
ON, when depressing the brake pedal
 ICC brake switch signal is input to ECM. These signals are transmitted from ECM to ADAS control unit via CAN communi-
cation
 Stop lamp switch signal is in put to ECM and ABS actuator and
electric unit (control unit). These signals are transmitted from
ECM and ABS actuator and electric unit (control unit) to ADAS
control unit via CAN communication
Stop lamp switch
××××
ICC brake hold relay ××ICC brake hold relay activates the stop lamp by ICC brake hold re-
lay drive signal (stop lamp drive signal) outputted by the ADAS
control unit
Transfer control unit ××××Transfer control unit transmits a mode selection state of 4WD shift
switch to the ADAS control unit via CAN communication
IBA OFF switch ×
NoteIBA OFF switch signal is input to the ADAS control unit
Steering angle sensor ×Measures the rotation amount, rotation speed, and rotation direc-
tion of steering wheel, and then transmits them to ADAS control
unit via CAN communication
Component
Function
Description
Vehicle-to-vehicle distance control mode
Conventional (fixed speed) cruise control mode Intelligent Brake Assist (IBA)
Brake Assist (with preview function)
Revision: 2010 May2011 QX56

CCS-1
CRUISE CONTROL & DRIVER ASSISTANCE
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SECTION CCS
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CONTENTS
CRUISE CONTROL SYSTEM
ICC
PRECAUTION ................ ...............................
6
PRECAUTIONS .............................................. .....6
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
6
Precautions For Harness Repair ...............................6
ICC System Service ..................................................7
PREPARATION ............................................8
PREPARATION .............................................. .....8
Special Service Tools .......................................... ......8
SYSTEM DESCRIPTION ..............................9
COMPONENT PARTS ................................... .....9
Component Parts Location .................................. ......9
Component Description ...........................................10
SYSTEM .............................................................12
System Description ............................................. ....12
Fail-safe (ADAS Control Unit) .................................15
Fail-safe (ICC Sensor) ............................................15
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE FUNCTION ................................................. ....
15
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE FUNCTION : System Description ................
15
CONVENTIONAL (FIXED SPEED) CRUISE CON-
TROL MODE FUNCTION ...................................... ....
18
CONVENTIONAL (FIXED SPEED) CRUISE
CONTROL MODE FUNCTION : System Descrip-
tion ...................................................................... ....
18
OPERATION .......................................................21
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE FUNCTION ................................................. ....
21
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE FUNCTION : Switch Name and Function ....
21
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE FUNCTION : Menu Displayed by Pressing
Each Switch .............................................................
21
CONVENTIONAL (FIXED SPEED) CRUISE CON-
TROL MODE FUNCTION ...................................... ....
25
CONVENTIONAL (FIXED SPEED) CRUISE
CONTROL MODE FUNCTION : Switch Name and
Function ...................................................................
25
CONVENTIONAL (FIXED SPEED) CRUISE
CONTROL MODE FUNCTION : Menu Displayed
by Pressing Each Switch .........................................
25
HANDLING PRECAUTION ...............................27
Precautions for Vehicle- to-Vehicle Distance Con-
trol Mode .............................................................. ....
27
Precautions for Conventional (Fixed Speed)
Cruise Control Mode ................................................
29
DIAGNOSIS SYSTEM (ADAS CONTROL
UNIT) .................................................................
30
On Board Diagnosis Function ..................................30
CONSULT-III Function (ICC/ADAS) ........................31
DIAGNOSIS SYSTEM (ICC SENSOR) .............41
CONSULT-III Function (LASER) .............................41
ECU DIAGNOSIS INFORMATION ..............43
ADAS CONTROL UNIT ....................................43
Reference Value .................................................. ....43
Fail-safe ...................................................................48
DTC Inspection Priority Chart ..................................49
DTC Index ...............................................................50
ICC SENSOR ....................................................54
Reference Value ......................................................54
Fail-safe ...................................................................55
DTC Inspection Priority Chart ..................................55
DTC Index ...............................................................55
Revision: 2010 May2011 QX56

CCS
COMPONENT PARTSCCS-9
< SYSTEM DESCRIPTION > [ICC]
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SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts LocationINFOID:0000000006224265
1. ICC steering switch 2. Information display, ICC system warning lamp, IBA OFF indicator
lamp, buzzer
(On the combination meter)3. BCM
Refer to BCS-4, "
BODY CONTROL
SYSTEM : Compon ent Parts Loca-
tion"
4. Transfer control unit
Refer to DLN-10, "
Component Parts
Location"
5. ICC brake hold relay 6. ECM
Refer to EC-16, "
Component Parts
Location"
7. ICC sensor 8. TCM
Refer to TM-10, "
A/T CONTROL
SYSTEM : Compon ent Parts Loca-
tion"
9. ABS actuator and electric unit (con-
trol unit)
Refer to BRC-10, "
Component Parts
Location"
10. Stop lamp switch 11. ICC brake switch 12. IBA OFF switch
JSOIA0362ZZ
Revision: 2010 May2011 QX56

CCS
COMPONENT PARTSCCS-11
< SYSTEM DESCRIPTION > [ICC]
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NOTE:
Only IBA system uses
Combination meter ××××Performs the following operations using the signals received from
the ADAS control unit via the CAN communication
 Displays the ICC system operation status using the meter dis-
play signal
 Illuminates the ICC system warning lamp using the ICC warning
lamp signal
 Illuminates the IBA OFF indicator lamp using the IBA OFF indi- cator lamp signal
 Operates the buzzer (ICC warning chime) using the buzzer out- put signal
ICC steering switch ×× ICC steering switch allows the ON/OFF of the Intelligent Cruise
Control and the settings of a vehicle speed and distance be-
tween vehicles
 ICC steering switch signal is transmitted to ECM. ECM transmits the signal to the ADAS control unit via CAN communication
ICC brake switch ×××× ICC brake switch is turned OFF and stop lamp switch is turned
ON, when depressing the brake pedal
 ICC brake switch signal is input to ECM. These signals are transmitted from ECM to ADAS control unit via CAN communi-
cation
 Stop lamp switch signal is in put to ECM and ABS actuator and
electric unit (control unit). These signals are transmitted from
ECM and ABS actuator and electric unit (control unit) to ADAS
control unit via CAN communication
Stop lamp switch
××××
ICC brake hold relay ××ICC brake hold relay activates the stop lamp by ICC brake hold re-
lay drive signal (stop lamp drive signal) outputted by the ADAS
control unit
Transfer control unit ××××Transfer control unit transmits a mode selection state of 4WD shift
switch to the ADAS control unit via CAN communication
IBA OFF switch ×
NoteIBA OFF switch signal is input to the ADAS control unit
Steering angle sensor ×Measures the rotation amount, rotation speed, and rotation direc-
tion of steering wheel, and then transmits them to ADAS control
unit via CAN communication
Component
Function
Description
Vehicle-to-vehicle distance control mode
Conventional (fixed speed) cruise control mode Intelligent Brake Assist (IBA)
Brake Assist (with preview function)
Revision: 2010 May2011 QX56

CCS-14
< SYSTEM DESCRIPTION >[ICC]
SYSTEM
Output Signal Item
DESCRIPTION
Intelligent Cruise Control
The Intelligent Cruise Control (ICC) system maintains a se
lected distance from the vehicle in front of own vehi-
cle within the speed range of 0 to 144 km/h (0 to 90 MPH) up to the set speed.
The set speed can be selected by the driver between 32 to 144 km/h (20 to 90 MPH).
The vehicle travels at a set speed when the road ahead is clear.
The ICC system can be set to one of two cruise control modes:
CAUTION:
Never set the cruise speed exceed ing the posted speed limit.
Vehicle-to-vehicle Distance Control Mode
ICC sensorITS com-
munica-
tionICC sensor signal
Receives detection results, such as the presence or ab-
sence of a leading vehicle and distance from the vehicle
IBA OFF switch IBA OFF switch signal Receives an ON/OFF state of the IBA OFF switch Transmit unit Signal name Description
Reception unit Signal name Description
ECM CAN commu-
nicationICC operation signal
Transmits an ICC operation signal necessary for Intel-
ligent Cruise Control
TCM CAN commu-
nicationICC operation signal Transmits an ICC operation signal necessary for Intel-
ligent Cruise Control via ECM
ABS actuator
and electric
unit (control
unit) CAN commu-
nication
Brake fluid pressure control signal
Transmits a brake fluid pressure control signal to acti-
vates the brake
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
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 Cruise Control (ICC)
 Intelligent Brake Assist (IBA)
ICC sensor ITS commu-
nication
Vehicle speed signal Transmits a vehicle speed calculated by the ADAS
control unit
ICC brake hold
relay ICC brake hold relay drive signal
Activates the brake hold relay and turns ON the stop
lamp
Revision: 2010 May2011 QX56

CCS-20
< SYSTEM DESCRIPTION >[ICC]
SYSTEM
In the conventional (fixed speed) cruise control mode,
a warning chime does not sound to warn driver if own
vehicle are too close to the vehicle ahead, as neither the presence of the vehicle ahead nor the vehicle-to-
vehicle distance is detected.
OPERATION DESCRIPTION
To turn ON the conventional (fixed speed) cruise cont rol mode, push and hold the MAIN switch for longer than
approximately 1.5 seconds when ICC system is OFF.
When pushing the MAIN switch ON, the ICC system display and the MAIN switch indicator are displayed on
the information display.
After hold the MAIN switch ON for longer than approxim ately 1.5 seconds, the ICC system display goes out.
The MAIN switch indicator stays lit and brings the system to standby state.
NOTE:
 To turn on the vehicle-to-vehicle distance control mode again, turn OFF the system and quickly push (less
than 1.5 seconds) the MAIN switch.
 When the DCA system is ON, the conventional (fixed speed) cruise control mode cannot be turned on even
though the MAIN switch is pushed and held.
 To turn ON the conventional (fixed speed) cruise control mode, turn OFF the DCA system. Refer to DAS-68,
"System Description".
ADAS control unit performs the control as per the following:
Set Condition
When the system is under a standby state and the vehi cle speed is between approximately 40 km/h (25 MPH)
and 144 km/h (90 MPH), pushing the SET/COAST switch will start system control.
If the system is canceled by conditions 1-6 below, the sy stem will resume control at the last set cruising speed
by pushing the RESUME/ACCELERATE switch.
Cancel conditions1. When CANCEL switch is pressed.
2. When brake pedal depressed.
3. When the vehicle speed falls below approximately 32 km/h (20 MPH).
4. When the vehicle slows down more than 13 km/h (8 MPH) below the set speed.
5. When the selector lever is not in the “D” position or manual mode.
6. When the parking brakes are applied.
7. When the MAIN switch is turned OFF.
8. When VDC (including the TCS) operates.
9. When a wheel slips.
10. When the system malfunction occurs.
Constant
speed Comparing the set vehicle speed with the current vehicle speed, transmits the command to ECM via CAN communication
to reach the set vehicle speed, and controls the electronic throttle control actuator.
Revision: 2010 May2011 QX56

CCS
OPERATIONCCS-21
< SYSTEM DESCRIPTION > [ICC]
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OPERATION
VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE FUNCTION
VEHICLE-TO-VEHICLE DISTANCE CONT ROL MODE FUNCTION : Switch Name
and Function
INFOID:0000000006224272
VEHICLE-TO-VEHICLE DISTANCE CONT ROL MODE FUNCTION : Menu Displayed
by Pressing Each Switch
INFOID:0000000006224273
ICC SYSTEM DISPLAY (ON THE INFORMATION DISPLAY)
JSOIA0290ZZ
No. Switch name Description
1 CANCEL switch Deactivates the system without erasing the set speed
2 RESUME/ACCELERATE switch Resumes set speed or increases speed incrementally
 Push and hold the switch to increase the set speed by 5 km/h (5 MPH)
 Push then quickly release the switch to
increase the set speed by 1 km/h (1 MPH)
3 SET/COAST switch Sets desired cruise speed or reduces speed incrementally
 Push and hold the switch to decrease the set speed by 5 km/h (5 MPH)
 Push then quickly release the switch to decrease the set speed by 1 km/h (1 MPH)
NOTE:
The minimum set speed is 32 km/h (20 MPH)
4 MAIN switch Master switch to activate the system (Press for less than 1.5 seconds)
5 DISTANCE switch Changes the following distance from: Long, Middle, Short
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No. Switch name Description 1 ICC system warning lamp Indicates that a malfunction occurs in the ICC system
2 MAIN switch indicator Indicates that th e MAIN switch is ON (ICC system ON)
3 Vehicle ahead detection indicator Indicates whether it detects a vehicle ahead
4 Set distance indicator Indicates the selected distance between vehicles set with the DISTANCE switch
Revision: 2010 May2011 QX56