2011 INFINITI QX56 turn signal

DAS
NORMAL OPERATING CONDITIONDAS-401
< SYMPTOM DIAGNOSIS > [LDW & LDP]
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NORMAL OPERATING CONDITION
DescriptionINFOID:0000000006223842
PRECAUTIONS FOR LANE DEPARTURE WARNING (LDW)
 LDW system is only a warning devic e to inform the driver of a potential unintended lane departure. It will not
steer the vehicle or prevent loss of c ontrol. It is the driver’s responsibility to stay alert, drive safely, keep the
vehicle in the traveling lane, and be in control of the vehicle at all times.
 LDW system will not operate at s peeds below approximately 70 km/h (45 MPH) or if it cannot detect lane
markers.
 Excessive noise will interfere with the warning chime sound, and the chime may not be heard.
 LDW system may not function properly under the following conditions:
- On roads where there are multiple parallel lane marker s; lane markers that are faded or not painted clearly;
yellow painted lane markers; non-standard lane markers; or lane markers covered with water, dirt or snow,
etc.
- On roads where the discontinued lane markers are still detectable.
- On roads where there are sharp curves.
- On roads where there are sharply contrasting objects, such as shadows, snow, water, wheel ruts, seams or
lines remaining after road repairs. (The LDW syst em could detect these items as lane markers.)
- On roads where the traveling lane merges or separates.
- When the vehicle's traveling direction does not align with the lane marker.
- When traveling close to other vehicle in front of the vehicle, which obstructs the lane camera unit detection
range.
- When rain, snow or dirt adheres to the windshield in front of the lane camera unit.
- When the headlights are not bright due to dirt on the lens or if the aiming is not adjusted properly.
- When strong light enters the lane camera unit. (For example, the light directly shines on the front of the vehi-
cle at sunrise or sunset.)
- When a sudden change in brightness occurs. (For exampl e, when the vehicle enters or exits a tunnel or
under a bridge.)
PRECAUTIONS FOR LANE DEPARTURE PREVENTION (LDP)
 LDP system will not steer the vehicle or prevent loss of control. It is the driver’s responsibility to stay alert,
drive safely, keep the vehicle in the traveling lane, and be in control of vehicle at all times.
 LDP system is primarily intended for use on well-devel oped freeways or highways. It may not detect the lane
markers in certain roads, weather or driving conditions.
 Using the LDP system under some conditions of road, lane marker or weather, or when driver change lanes
without using the turn signal could lead to an unexpect ed system operation. In such conditions, driver needs
to correct the vehicle's direction with dr iver's steering operation to avoid accidents.
 When the LDP system is operating, avoid excessive or sudden steering maneuvers. Otherwise, driver could
lose control of the vehicle.
 The LDP system will not operate at speeds below approximat ely 70 km/h (45 MPH) or if it cannot detect lane
markers.
 The LDP system may not function properly under the following conditions, and do not use the LDP system:
- During bad weather (rain, fog, snow, wind, etc.).
- When driving on slippery roads, such as on ice or snow, etc.
- When driving on winding or uneven roads.
- When there is a lane closure due to road repairs.
- When driving in a makeshift lane.
- When driving on roads where the lane width is too narrow.
- When driving with a tire that is not within normal tire c onditions (for example, tire wear, low tire pressure,
installation of spare tire, tire chains, non-standard wheels).
- When the vehicle is equipped with non-origi nal brake parts or suspension parts.
 Excessive noise will interfere with the warning chime sound, and the chime may not be heard.
 The functions of the LDP system (warning and brake control assist) may or may not operate properly under
the following conditions:
- On roads where there are multiple parallel lane marker s; lane markers that are faded or not painted clearly;
yellow painted lane markers; non-standard lane markers or lane markers covered with water, dirt or snow,
etc.
- On roads where discontinued lane markers are still detectable.
- On roads where there are sharp curves.
Revision: 2010 May2011 QX56

DAS
COMPONENT PARTSDAS-409
< SYSTEM DESCRIPTION > [BSW]
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Component DescriptionINFOID:0000000006223850
A. Rear bumper removed condition B. Rear bumper removed condition C. Instrument lower panel (LH)
D. Behind of instrument lower panel (LH)
Component Description
ADAS control unit  Being connected with side radar (LH and RH) via ITS communication, receives vehicle detection
signal and transmits BSW indicator signal and BSW indicator dimmer signal to side radar
 Activates the warning buzzer and warning systems ON indicator
Side radar LH/ RH  Being connected with ADAS control unit via ITS communication, transmits vehicle detection sig-
nal
 Receives BSW indicator signal and BSW indicator dimmer signal from ADAS control unit and transmits an indicator operation signal to BSW indicator LH/RH
 RH side radar equips right/left switching signal circuit for identifying LH or RH because the parts
of side radar are common for right and left
BSW indicator LH/ RH Receives BSW indicator operation signal from side radar LH/RH and turns OFF, turns ON or blinks
ABS actuator and electric unit
(control unit) Transmits vehicle speed signal to ADAS control unit via CAN communication
Warning systems switch Inputs the switch signal to ADAS control unit
Warning systems ON indicator
(On the warning systems switch) Indicates BSW system status
Warning buzzer Receives buzzer signal from ADAS control unit and sounds buzzer.
Combination meter  Receives BSW warning lamp signal via CAN communication
 Turns the BSW warning lamp ON/OFF according to the signals from the ADAS control unit via
CAN communication
BCM  Transmits turn indicator signal to ADAS control unit via CAN communication
 Transmits dimmer signal to ADAS control unit via CAN communication
TCM Transmits the shift position signal to ADAS control unit via CAN communication
Revision: 2010 May2011 QX56

DAS-410
< SYSTEM DESCRIPTION >[BSW]
SYSTEM
SYSTEM
System DescriptionINFOID:0000000006223851
SYSTEM DIAGRAM
ADAS CONTROL UNIT INPU
T/OUTPUT SIGNAL ITEM
ADAS control unit receives signals via CAN communication. It also detects vehicle conditions that are neces-
sary for BSW control.
Input Signal Item
Output Signal Item
JSOIA0378GB
Transmit unit Signal name Description
TCM CAN communication Shift position signal Receives a selector lever position
ABS actuator
and electric unit
(control unit) CAN communication Vehic
le speed signal (ABS)Receives wheel speeds of four wheels
BCM CAN communication 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
Side radar LH,
RH ITS communication Vehicle detection signal Receives vehicle detection condition of detection zone
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 communication BSW
warning lamp signalTransmits a BSW warning lamp signal to turn ON the
BSW warning lamp
Side radar LH,
RH ITS communication 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
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
Warning buzz-
er Warning buzzer signal Activates the warning buzzer
Revision: 2010 May2011 QX56

DAS
SYSTEM
DAS-411
< SYSTEM DESCRIPTION >[BSW]
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FUNCTION DESCRIPTION
 The BSW system can help alert the driver of ot her vehicles in adjacent lanes when changing lanes.
 The BSW system uses side radar in stalled near the rear bumper to detect vehicles in an adjacent lane.
 The side radar can detect vehicles on either side of v ehicle within the detection zone shown as illustrated.
 This detection zone starts from the outside mirror of vehicle and extends approximately 10 ft (3.0 m) behind
the rear bumper, and approximately 10 ft (3.0 m) sideways.
 The BSW system operates above appr oximately 32 km/h (20 MPH).
 If the side radar detects vehicles in the detection zone, the BSW indicator illuminates.
 If the driver then activates the turn signal, a buzzer will sound twice and the BSW indicator will blink. NOTE:
A buzzer sounds if the side radar have already detected vehicles when the driver activates the turn signal. If
a vehicle comes into the detection zone after the driver activates the turn signal, then only the BSW indicator
blinks and no buzzer sounds.
BSW SYSTEM OPERATION DESCRIPTION
 ADAS control unit enables BSW system.
 The ADAS control unit turns on the BSW system w hen the warning systems switch is turned ON.
 Side radar detects a vehicle in the adjacent lane, and transmits the vehicle detection signal to ADAS control
unit via ITS communication.
 ADAS control unit starts the control as follows, bas ed on a vehicle detection signal, turn signal and dimmer
signal transmitted from BCM via CAN communication:
- BSW indicator signal and BSW indicator dimmer signal transmission to side radar.
- Buzzer signal transmission to warning buzzer.
 Side radar transmits an indicator operation signal to the BSW indicator according to BSW indicator signal
and BSW indicator dimmer signal.
Operation Condition of BSW System
ADAS control unit performs the control when the following conditions are satisfied.
 When the warning systems switch in turned ON.
 When the vehicle drives at approximately 32 km/h (20 MPH) or more to the forward direction.
JSOIA0257GB
JSOIA0258GB
Revision: 2010 May2011 QX56

DAS
OPERATIONDAS-415
< SYSTEM DESCRIPTION > [BSW]
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OPERATION
Switch Name and FunctionINFOID:0000000006223854
System Display and WarningINFOID:0000000006223855
INDICATOR AND WARNING LAMP
DISPLAY AND WARNING OPERATION
JSOIA0277ZZ
No. Name Function 1 Warning systems switch Turns BSW, LDW, and FCW systems ON/OFF
JSOIA0375ZZ
No. Name Description
1 Warning systems ON indicator  Turns ON while FCW/LDW/BSW system is ON
 Blinks when initial setting of FCW/LDW/BSW system changes
2 BSW warning lamp  Turns ON when BSW system is malfunctioning
 Blinks when the following conditions:
- Side radar is factory-default mode condition
- When radar blockage is detected
Vehicle condition/ Driver's operation Action
Warning
systems ON indicator Vehicle speed
(Approx.)
[km/h (MPH)] Turn signal
condition Status of ve-
hicle detec-
tion within detection area Indication on the
BSW indicator Buzzer
OFF — — — OFF OFF
Revision: 2010 May2011 QX56

DAS-416
< SYSTEM DESCRIPTION >[BSW]
OPERATION
NOTE:
 If vehicle speed exceeds approximately 32 km/h (20MPH), BSW function operates until the vehicle speed becomes lower than
approximately 29km/h (18MPH).
 Time shown in the figure is approximate time. ON
Less than ap-
prox.
29 (18) —— OFF OFF
Approx. 32 (20)
or more —
Ve h i c l e i s
absent OFF OFF
OFF Ve h i c l e i s
detected ON OFF
ON
(vehicle de-
tected direc- tion) Before turn
signal oper- ates
Ve h i c l e i s detected Blink Short continuous beep
Ve h i c l e i s
detected af-
ter turn sig-
nal operates Blink
OFF
Vehicle condition/ Driver's operation Action
Warning
systems ON indicator Vehicle speed
(Approx.)
[km/h (MPH)] Turn signal
condition Status of ve-
hicle detec-
tion within detection area Indication on the
BSW indicator Buzzer
JSOIA0251GBJSOIA0252GB
JSOIA0251GB
Revision: 2010 May2011 QX56

DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-419
< SYSTEM DESCRIPTION > [BSW]
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 It displays for up to 5 minutes and then stops.
 If multiple malfunctions exist, up to 6 DTCs can be stored in memory at the most, and the most recent
one is displayed first.
WHEN THE ON BOARD SELF-DIAGNOSIS DOES NOT START
If the on board self-diagnosis does not start, check the following items.
HOW TO ERASE ON BOARD SELF-DIAGNOSIS
1. Turn the ignition switch OFF.
2. Start the engine, and then start the on board self-diagnosis.
3. Press the CANCEL switch 5 times, and then press the DIS-
TANCE switch 5 times under the condition that the on board
self-diagnosis starts.
NOTE:
 Complete the operation within 10 seconds after pressing the
CANCEL switch first.
 If the operation is not completed within 10 seconds, repeat the procedure from step 1.
4. DTC 55 is displayed after erasing. NOTE:
DTCs for existing malfunction can not be erased.
5. Turn ignition switch OFF, and finish the diagnosis.
CONSULT-III Function (ICC/ADAS)INFOID:0000000006223858
APPLICATION ITEMS
CONSULT-III performs the following functions via CAN communication using ADAS control unit.
WORK SUPPORT
Assumed abnormal part Inspection item
Information display Combination meter malfunction Check that the self-diagnosis function of the combina-
tion meter operates. Refer to
MWI-29, "
On Board Diag-
nosis Function"
ICC steering switch malfunction
Perform the inspection for DTC“C1A06”. Refer to CCS-
94, "Diagnosis Procedure"Harness malfunction between ICC steering switch and ECM
ECM malfunction
ADAS control unit malfunction  Check power supply and ground circuit of ADAS con-
trol unit. Refer to DAS-62, "
Diagnosis Procedure".
 Perform SELF-DIAGNOSIS for “ICC/ADAS”with
CONSULT-III, and then check the malfunctioning
parts. Refer to DAS-38, "
DTC Index".
PKIB8373E
Diagnosis mode Description
Work Support Displays causes of automatic system cancellation occurred during system control
Self Diagnostic Result Displays the name of a malfunctioning system stored in the ADAS control unit
Data Monitor Displays ADAS control unit input/output data in real time
Active Test Enables an operational check of a load by transmitting a driving signal from the ADAS control unit to
the load
Ecu Identification Displays ADAS control unit part number
CAN Diag Support Monitor Displays a reception/transmission state of CAN communication and ITS communication
Revision: 2010 May2011 QX56

DAS-420
< SYSTEM DESCRIPTION >[BSW]
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
NOTE:
 Causes of the maximum five cancella
tions (system cancel) are displayed.
 The displayed cancellation causes display the number of the ignition switch ON/OFF up to 254. It is fixed to
254 if it is over 254. It returns to 0 when the same cancellation cause is detected again.
Display Items for The Cause of Automatic Cancellation 1
Work support items Description
CAUSE OF AUTO-CANCEL 1 Displays causes of automatic system cancellation occurred during control of the following sys-
tems
 Vehicle-to-vehicle distance control mode
 Conventional (fixed speed) cruise control mode
 Distance Control Assist (DCA)
CAUSE OF AUTO-CANCEL 2 Displays causes of automatic system cancellation occurred during control of the Lane Depar-
ture Prevention (LDP) system
Cause of cancellation
Vehicle-to-vehicle distance control mode
Conventional (fixed speed) cruise control mode Distance Control Assist
Description
OPERATING WIPER ×The wiper operates at HI (it includes when the wiper is operated at
HI with the wiper switch AUTO position)
OPERATING ABS ××ABS function was operated
OPERATING TCS ×××TCS function was operated
OPERATING VDC ×××VDC function was operated
ECM CIRCUIT ××ECM did not permit ICC operation
OPE SW VOLT CIRC ×××The ICC steering switch input voltage is not within standard range
LASER SUNBEAM ××Intense light such as sunlight entered ICC sensor light sensing part
LASER TEMP ××Temperature around ICC sensor became low
SNOW MODE SW ××SNOW mode switch was pressed
OP SW DOUBLE
TOUCH ××
ICC steering switches were pressed at the same time
VHCL SPD DOWN ×××Vehicle speed lower than the speed as follows
 Vehicle-to-vehicle distance control mode is 24 km/h (15 MPH)
 Conventional (fixed speed) cruise control mode is 32 km/h (20
MPH)
WHL SPD ELEC NOISE ×××Wheel speed sensor signal caught electromagnetic noise
VDC/TCS OFF SW ××VDC OFF switch was pressed
VHCL SPD UNMATCH ×××Wheel speed became different from A/T vehicle speed
TIRE SLIP ××Wheel slipped
IGN LOW VOLT ×××Decrease in ADAS control unit IGN voltage
PARKING BRAKE ON ××The parking brake is operating
WHEEL SPD UNMATCH ×××The wheel speeds of 4 wheels are out of the specified values
Revision: 2010 May2011 QX56