2011 INFINITI QX56 Factory Service Manual

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Page 1185 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS-220
< SYSTEM DESCRIPTION >[FCW]
SYSTEM
Fail-safe (ICC Sensor)
INFOID:0000000006223675
If a malfunction occurs in the ICC sensor, ADAS contro l unit cancels control, sounds a beep, and turns ON th

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DAS
OPERATIONDAS-221
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OPERATION
Switch Name and FunctionINFOID:0000000006223676
Menu Displayed by Pressing Each SwitchINFOID:0000000006223677

Page 1187 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS-222
< SYSTEM DESCRIPTION >[FCW]
OPERATION
ConditionWarning
systems
ON indica-
tor Vehicle ahead detection indicator
(In the combination meter) Buzzer
Set condition ON OFF —
When own vehicle c

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INFINITI QX56 2011 Factory Service Manual
DAS
HANDLING PRECAUTIONDAS-223
< SYSTEM DESCRIPTION > [FCW]
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HANDLING PRECAUTION
Precautions for Forward Collision WarningINFOID:0000000006223678
FORWARD COLLISION WARNIN

DAS
HANDLING PRECAUTIONDAS-223
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HANDLING PRECAUTION
Precautions for Forward Collision WarningINFOID:0000000006223678
FORWARD COLLISION WARNING (FCW)
FCW system is intended to warn the driver before a collis ion but will not avoid a collision. It is the drive's
responsibility to stay alert, drive safely and be in control of the vehicle at all times.
As there is a performance limit, the FCW system ma y not provide a warning in certain conditions.
The FCW system will not detect the following objects.
- Pedestrians, animals, or obstacles in the roadway.
- Oncoming vehicles in the same lane
FCW system will not detect under the following conditions.
- When the sensor gets dirty, it is impossibl e to detect the distance from the vehicle ahead.
- When driving into a strong light (i.e. sunlight)
The sensor generally detects signals returned from t he reflectors on a vehicle ahead. Therefore, the FCW
system may not warn properly under the following conditions:
- When the reflectors of the vehicle ahead are positioned high or close to each other (including a small vehicle such as motorcycles).
- When the sensor gets dirty or it is impossible to detect the distance to the vehicle ahead.
- When the reflectors on the vehicle ahead is missing, damaged or covered.
- When the reflector of the vehicle ahead is covered with dirt, snow or road spray.
- When visibility is low (such as rain, fog, snow, etc.).
- When snow or road spray from traveling vehicles are splashed.
- When dense exhaust or other smoke (black smoke) from vehicles reduces the visibility of the sensor.
- When excessively heavy baggage is loaded in the rear seat or the luggage room of own vehicle.
- When abruptly accelerating or decelerating.
- On steep downhill or roads with sharp curves.
- When there is a highly reflective object near the vehicle ahead.
i.e.) very close to other vehicle, signboard, etc.
- When own vehicle are towing a trailer.
Depending on certain road conditions (curved, beginning of a curve), vehicle conditions (steering position,
vehicle position), or preceding vehicle's conditions (pos ition in lane, etc.), the FCW system may not function
properly. The FCW system may detect highly reflective obj ects such as reflectors, signs, white markers, and
other stationary objects on the road or near the traveling lane, and provide unnecessary warning.
The FCW system may not function in offset conditions.
The FCW system may not function when the dist ance to the vehicle ahead is extremely close.
The FCW system is designed to automat ically check the sensor's functionality. If the sensor is covered with
ice, a transparent or translucent pl astic bag, etc., the system may not detect them. In these instances the
FCW system may not be able to warn properly. Be sure to check and clean the sensor regularly.
Excessive noise will interfere with the warning chime sound, and the chime may not be heard.
A sudden appearance of the vehicle in front (i.e.: w hen a vehicle abruptly cuts in) may not be detected and
the system may not warn soon enough.
The FCW system will be canceled automatically with a chime sound and the IBA OFF indicator light will illu-
minate under the following conditions:
- When the sensor window is dirty
- When the FCW system malfunctions
Revision: 2010 May2011 QX56

Page 1189 of 5598

INFINITI QX56 2011 Factory Service Manual
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 t

Page 1190 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-225
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It displays for up to 5 minutes and then stops.
If multiple malfunctions exist, up to 6

DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-225
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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:0000000006223680
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

Page 1191 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS-226
< SYSTEM DESCRIPTION >[FCW]
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
NOTE:
Causes of the maximum five cancella
tions (system cancel) are displayed.
The displayed cancellation causes display t

DAS-226
< SYSTEM DESCRIPTION >[FCW]
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

Page 1192 of 5598

INFINITI QX56 2011 Factory Service Manual
DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-227
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Display Items for The Cause of Automatic Cancellation 2
SELF DIAGNOSTIC RESULT
Refer to DA

DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-227
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Display Items for The Cause of Automatic Cancellation 2
SELF DIAGNOSTIC RESULT
Refer to DAS-38, "DTC Index".
DATA MONITOR
INCHING LOST ×A vehicle ahead is not detected during the following driving when
the vehicle speed is approximately 24 km/h (15 MPH) or less
CAN COMM ERROR ×××ADAS control unit received an abnormal signal with CAN commu-
nication
ABS/TCS/VDC CIRC ×××An abnormal condition occurs in VDC/TCS/ABS system
ECD CIRCUIT ×××An abnormal condition occurs in ECD system
ASCD VHCL SPD DTAC ×Vehicle speed is detached from set vehicle speed
ASCD DOUBLE COMD ×Cancel switch and operation switch are detected simultaneously
APA HI TEMP ×The accelerator pedal actuator integrated motor temperature is
high
ICC SENSOR CAN
COMM ERR ××Communication error between ADAS control unit and the ICC sen-
sor
4WD LOCK MODE ×××Shifting of the 4WD shift switch to 4H or 4L
ABS WARNING LAMP ××ABS warning lamp ON
NO RECORD ××× —
Cause of cancellation Description
OPE VDC/TCS/ABS 1 The activation of VDC, TCS, or ABS during LDP system control
Vehicle dynamics Vehicle behavior exceeds specified value
Steering speed Steering speed was more than the specified value in evasive direction
End by yaw angle Yaw angle was the end of LDP control
Departure yaw large Detected more than the specified value of yaw angle in departure direction
ICC WARNING Target approach warning of ICC system, IBA system or FCW system was activated
CURVATURE Road curve was more than the specified value
Steering angle large Steering angle was more than the specified value
Brake is operated Brake pedal was operated
IGN LOW VOLT Decrease in ADAS control unit IGN voltage
Lateral offset Distance of vehicle and lane was detached in lateral direction more than the specified value
Lane marker lost Lane camera unit lost the trace of lane marker
Lane marker unclear Detected lane marker was unclear
Yaw acceleration Detected yawing speed was more than the specified value
Deceleration large Deceleration in a longitudinal direction was more than the specified value
Accel is operated Accelerator pedal was depressed
Departure steering Steering wheel was steered more than the specified value in departure direction
Evasive steering Steering wheel was steered more than the specified value in the evasive direction
R range Selector lever was operated to R range
Parking brake drift Rear wheels lock was detected
Not operating condition Did not meet the operating condition (vehicle speed, turn signal operation, etc)
SNOW MODE SW SNOW mo de switch was pressed
VDC OFF SW VDC OFF switch was pressed
OPE VDC/ABS 2 The activation of VDC or ABS duri ng a standby time of LDP system control
4WD LOCK MODE Shifting of the 4WD shift switch to 4H or 4L
NO RECORD —
Revision: 2010 May2011 QX56

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