2011 INFINITI QX56 display

DAS-210
< SYMPTOM DIAGNOSIS >[DCA]
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
DescriptionINFOID:0000000006223665
PRECAUTIONS FOR DISTANCE CONTROL ASSIST (DCA) SYSTEM
 If the vehicle ahead comes to a stop, the vehicle deceler
ates to a standstill within the limitations of the sys-
tem. The system will cancel once it judges that the vehi cle has come to a standstill with a warning chime. To
prevent the vehicle from moving, t he driver must depress the brake pedal.
 The DCA system will not apply brake control while the driver is depressing the accelerator pedal.
 This system is only an aid to assist the driver and is not a collision warning or avoidance device. It is the
driver's responsibility to stay alert, drive safe ly and be in control of the vehicle at all times.
 This system will not adapt automatically to road condi tions. Do not use the system on roads with sharp
curves, or on icy roads, in heavy rain or in fog.
 The distance sensor will not detect under most conditions.
- Stationary and slow moving vehicles
- Pedestrians or objects in the roadway
- Oncoming vehicles in the same lane
- Motorcycles traveling offset in the travel lane
 As there is a performance limit to the distance contro l function, never rely solely on the DCA system. This
system does not correct careless, inat tentive or absent-minded driving, or overcome poor visibility in rain,
fog, or other bad weather. Decelerate the vehi cle speed by depressing the brake pedal, depending on the
distance to the vehicle ahead and the surrounding circumstances in order to maintain a safe distance
between vehicles.
 The system may not detect the vehicle in front of own v ehicle in certain road or weather conditions. To avoid
accidents, never use the DCA system under the following conditions.
- On roads with sharp curves
- On slippery road surfaces such as on ice or snow, etc.
- On off-road surfaces such as on sand or rock, etc.
- During bad weather (rain, fog, snow, etc.)
- When strong light (for example, at sunrise or sunset) is directly shining on the front of the vehicle
- When rain, snow or dirt adhere to the system sensor
- On steep downhill roads (frequent braking may result in overheating the brakes)
- On repeated uphill and downhill roads
- When towing a trailer or other vehicle
 In some road or traffic conditions, a vehicle or objec t can unexpectedly come into the sensor detection zone
and cause automatic braking. Driver may need to control the distance from other vehicles using the acceler-
ator pedal. Always stay alert and avoid using the DCA system when it is not recommended in this section.
 The following are some conditions in which the sensor cannot detect the signals.
- When the reflector of the vehicle ahead is positioned high on the vehicle (trailer, etc.)
- When the reflector on the vehicle ahead is missing, damaged or covered
- When the reflector of the vehicle ahead is covered with dirt, snow and road spray
- When the snow or road spray from traveling vehicles reduces the sensor's visibility
- When dense exhaust or other smoke (black smoke) fr om vehicles reduces the sensor's visibility
- When excessively heavy baggage is loaded in the rear seat or the luggage room of own vehicle
 The DCA system is designed to autom atically check the sensor's operation. When the sensor is covered
with dirt or is obstructed, the system will automatically be canceled. If the sensor is covered with ice, a trans-
parent or translucent vinyl bag, etc., the DCA syste m may not detect them. In these instances, the DCA sys-
tem may not be able to decelerate the vehicle properly. Be sure to check and clean the sensor regularly.
 The DCA system is designed to help assist the driver to maintain a following distance from the vehicle
ahead. The system will decelerate as necessary and if the vehicle ahead comes to a stop, the vehicle decel-
erates to standstill. However, the DCA system can only apply up to 25% of the vehicles total braking power.
If a vehicle moves into the traveling lane ahead or if a vehicle traveling ahead rapidly decelerates, the dis-
tance between vehicles may become closer because t he DCA system cannot decelerate the vehicle quickly
enough. If this occurs, the DCA system will sound a warn ing chime and blink the system display to notify the
driver to take necessary action.
 The DCA system does not control vehicle speed or warn when driver approach stationary and slow moving
vehicles. Driver must pay attention to vehicle operat ion to maintain proper distance from vehicles ahead.
Revision: 2010 May2011 QX56

DAS
NORMAL OPERATING CONDITIONDAS-211
< SYMPTOM DIAGNOSIS > [DCA]
C
D
E
F
G H
I
J
K L
M B
N P A
 The detection zone of the sensor is limited. A vehicle ahead must be in the detection zone for the system to operate.
- A vehicle ahead may move outside of the detection zone due to its
position within the same lane of travel. Motorcycles may not be
detected in the same lane ahead if they are traveling offset from
the center line of the lane. A vehicle that is entering the lane ahead
may not be detected until the vehicle has completely moved into
the lane. If this occurs, the system may warn driver by blinking the
system indicator and sounding the chime. The driver may have to
manually control the proper distance away from vehicle traveling
ahead.
- When driving on some roads, such as winding, hilly, curved, nar- row roads, or roads which are under construction, the sensor may
detect vehicles in a different lane, or may temporarily not detect a
vehicle traveling ahead. This may cause the system to work inap-
propriately. The detection of vehicles may also be affected by vehi-
cle operation (steering maneuver or traveling position in the lane,
etc.) or vehicle condition. If this occurs, the system may warn
driver by blinking the system indicator and sounding the chime
unexpectedly. The driver will have to manually control the proper
distance away from the vehicle traveling ahead.
 The approach warning chime may sound and the system display may blink when the sensor detects some reflectors which are fitted
on vehicles in other lanes or on the side of the road. This may
cause the DCA system to operate inappropriately. The sensor may
detect these reflectors when the vehicle is driven on winding
roads, hilly roads or when entering or exiting a curve. The sensor
may also detect reflectors on narrow roads or in road construction
zones. In these cases driver will have to manually control the
proper distance ahead of own vehicle. Also, the sensor sensitivity
can be affected by vehicle operation (steering maneuver or driving
position in the lane) or traffic or vehicle condition (for example, if a
vehicle is being driven with some damage).
 The DCA system automatically dec elerates own vehicle to help
assist the driver to maintain a following distance from the vehicle
ahead. Manually brake when deceleration is required to maintain a safe distance upon sudden braking by
the vehicle ahead or when a vehicle suddenly appears in front of own vehicle. Always stay alert when using
the DCA system.
 When the vehicle ahead detection indicator lamp is not illum inated, system will not control or warn the driver.
 Never place a foot under the brake pedal. A foot may be caught when the system controls the brake.
 Depending on the position of the accelerator pedal, the system may not be able to assist the driver to
release the accelerator pedal appropriately.
 If the vehicle ahead comes to a standstill, the vehicle decel erates to a standstill within the limitations of the
system. The system will rel ease brake control with a warning chime once it judges the vehicle is at a stand-
still. To prevent the vehicle from moving, the driv er must depress the brake pedal. [The system will resume
control automatically once the system reaches 5 km/h (3 MPH)].
JPOIA0221ZZ
JPOIA0220ZZ
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
COMPONENT PARTSDAS-217
< SYSTEM DESCRIPTION > [FCW]
C
D
E
F
G H
I
J
K L
M B
N P A
Warning systems ON indicator
(In the warning systems switch) Turns warning systems ON indicator ON/OFF according to the signals from the ADAS control
unit
Warning systems ON indicator turns on, according to an warning systems ON indicator signal.
Combination meter Performs the following operations using the signals received from the ADAS control unit via
the CAN communication
 Blinks the vehicle ahead detection indicator according to a meter display signal
 Illuminates the IBA OFF indicator lamp using the IBA OFF indicator lamp signal
 Operates the buzzer (ICC warning chime) using the buzzer output signal
Component Description
Revision: 2010 May2011 QX56

DAS-218
< SYSTEM DESCRIPTION >[FCW]
SYSTEM
SYSTEM
System DescriptionINFOID:0000000006223673
SYSTEM DIAGRAM
ADAS CONTROL UNIT INPU
T/OUTPUT SIGNAL ITEM
Input Signal Item
Output Signal Item
DESCRIPTION
 The Forward Collision Warning (FCW) system will warn the driver by a warning lamp (vehicle ahead detec-
tion indicator) and chime when own vehicle is getting close to the vehicle ahead in the traveling lane.
JSOIA0279GB
Transmit unit Signal name Description
ABS actuator
and electric unit
(control unit) CAN com-
munica-
tion
Vehicle speed signal (ABS) Receives wheel speeds of four wheels
ICC sensor ITS com-
munica-
tion
ICC sensor signal
Receives detection results, such as the presence or ab-
sence of a leading vehicle and distance from the vehicle
Warning sys-
tems switch Warning systems switch signal Receives an ON/OFF state of the warning systems
switch
Reception unit Signal name Description
Combination
meter CAN commu-
nicationMeter display
signal
Vehicle ahead detec-
tion indicator signal Transmits a signal to display a state of the system on
the information display
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 activate the buzz-
er
ICC sensor ITS commu-
nication
Vehicle speed signal Transmits a vehicle speed calculated by the ADAS
control unit
Warning sys-
tems ON indi-
cator Warning systems ON indicator signal Turns ON the warning systems ON indicator
Revision: 2010 May2011 QX56

DAS
SYSTEM
DAS-219
< SYSTEM DESCRIPTION >[FCW]
C
D
E
F
G H
I
J
K L
M B
N P A
 The FCW system will function when own vehicle is dr iven at speeds of approximately 15 km/h (10 MPH) and
above.
NOTE:
The FCW system shares the di agnosis function with ICC system.
FUNCTION DESCRIPTION
The distance from the vehicle ahead and a relative speed are calculated by using the ICC sensor and an ICC
sensor signal is transmitted to t he ADAS control unit via ITS communi cation. When judging the necessity of
warning according to the received vehicle ahead detection signal, the ADAS control unit transmits a buzzer
output signal and meter display signal to the combination meter via CAN communication.
FCW Operating Condition
 Warning systems ON indicator: ON
 Vehicle speed: Approximately 15 km/h (10 MPH) and above.
Fail-safe Indication
FCW INITIAL STATE CHANGE
CAUTION:
Never change FCW initial state “ON” ⇒ “OFF” without the con sent of the customer.
FCW initial state can be changed.
 FCW initial ON* - FCW function is automatically turned ON, when the ignition switch OFF ⇒ ON.
 FCW initial OFF - FCW function is still OFF when the ignition switch OFF ⇒ ON.
*: Factory setting
How to change FCW/LDW/BSW initial state1. Turn ignition switch ON.
2. Warning systems switch is OFF.
3. Push and hold warning systems switch for more than 4 seconds.
4. Buzzer sounds and blinking of the warning systems ON indicator informs that the FCW/LDW/BSW initial
state change is completed.
Fail-safe (ADAS Control Unit)INFOID:0000000006223674
If a malfunction occurs in each s ystem, ADAS control unit cancels eac h control, sounds a beep, and turns ON
the warning lamp or indicator lamp.
Vehicle condition Indication on the combination meter
 When the FCW system malfunctions
 When the sensor window is dirty
 When driving into a strong light (i.e. sunlight)
NOTE:
Check that the IBA system is not OFF. The indicator lamp is shared
with IBA system.
JPOIA0179ZZ
System Buzzer Warning lamp/Indicator lamp Description
Vehicle-to-vehicle distance control mode High-pitched
toneICC system warning lamp Cancel
Conventional (fixed speed) cruise control mode High-pitched
toneICC system warning lamp Cancel
Intelligent Brake Assist (IBA) High-pitched
tone
IBA 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
OPERATIONDAS-221
< SYSTEM DESCRIPTION > [FCW]
C
D
E
F
G H
I
J
K L
M B
N P A
OPERATION
Switch Name and FunctionINFOID:0000000006223676
Menu Displayed by Pressing Each SwitchINFOID:0000000006223677
DISPLAY AND WARNING LAMP
SYSTEM CONTROL CONDITION DISPLAY
JSOIA0277ZZ
No. Switch name Description
1 Warning systems switch Turns FCW/LDW/BSW systems ON/OFF
JSOIA0278ZZ
No. Display item Description 1 Warning systems ON indicator Indicates that FCW/LDW/BSW systems are ON
2 Vehicle ahead detection indicator Vehicle ahead detection indicator blinks when the FCW system is activated
3 IBA OFF indicator lamp IBA OFF indicator lamp turns ON when:
 FCW system has a malfunction
 ICC sensor window is too dirty to detect a vehicle ahead
 Subjected to a strong light (e.g. sunlight)
IBA OFF indicator lamp blinks when 4WD shift switch is set in a position other
than AUTO
NOTE:
Shared with IBA system
Revision: 2010 May2011 QX56

DAS-224
< SYSTEM DESCRIPTION >[FCW]
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
On Board Diagn
osis FunctionINFOID:0000000006223679
DESCRIPTION
The DTC is displayed on the information disp lay by operating the ICC steering switch.
On Board Self-diagnosis System Diagram
METHOD OF STARTING
CAUTION:
Start condition of on board self-diagnosis
 ICC system OFF
 DCA system OFF
 Vehicle speed 0 km/h (0 MPH)
1. Turn the ignition switch OFF.
2. Start the engine.
3. Wait for 5 seconds after starting the engine. Push up the RESUME/ACCELERATE switch 5 times and push down the
SET/COAST switch 5 times within 10 seconds.
NOTE:
If the above operation cannot be performed within 10 seconds
after waiting for 5 seconds after starting the engine, repeat the
procedure from step 1.
4. The DTC is displayed on the set vehicle speed indicator (1) on the ICC system display on the information display when the on board self-diagnosis starts. Refer to DAS-38, "
DTC Index".
NOTE:
JSOIA0271GB
PKIB8371E
JSOIA0008GB
Revision: 2010 May2011 QX56