Infiniti QX56 (Z62). Manual - part 260

 

  Index      Infiniti     Infiniti QX56 (Z62) - service repair manual 2011 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  258  259  260  261   ..

 

 

Infiniti QX56 (Z62). Manual - part 260

 

 

DAS

HANDLING PRECAUTION

DAS-77

< SYSTEM DESCRIPTION >

[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 decelerates 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 illuminated, 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 decelerates to a standstill within the limitations of the

system. The system will release brake control with a warning chime once it judges the vehicle is at a stand-
still. To prevent the vehicle from moving, the driver must depress the brake pedal. [The system will resume
control automatically once the system reaches 5 km/h (3 MPH)].

JPOIA0221ZZ

JPOIA0220ZZ

DAS-78

< SYSTEM DESCRIPTION >

[DCA]

DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)

DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)

On Board Diagnosis Function

INFOID:0000000006223506

DESCRIPTION

The DTC is displayed on the information display 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

DAS

DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)

DAS-79

< SYSTEM DESCRIPTION >

[DCA]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

• 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:0000000006223507

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

DAS-80

< SYSTEM DESCRIPTION >

[DCA]

DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)

NOTE:
• Causes of the maximum five cancellations (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

V

e

h

ic

le

-t

o

-v

eh

ic

le

 di

st

an

ce

 co

nt

rol

 mo

de

Co

nv

en

tio

n

a

l (f

ixe

d

 sp

ee

d) c

rui

se

 c

o

n

trol

 mo

de

Distan

ce

 Con

tro

l As

si

st

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

 

 

 

 

 

 

 

Content   ..  258  259  260  261   ..